

Natural Resources
Conservation Service
Ecological site R053BY007ND
Sands
Last updated: 3/31/2025
Accessed: 04/05/2025
General information
Provisional. A provisional ecological site description has undergone quality control and quality assurance review. It contains a working state and transition model and enough information to identify the ecological site.

Figure 1. Mapped extent
Areas shown in blue indicate the maximum mapped extent of this ecological site. Other ecological sites likely occur within the highlighted areas. It is also possible for this ecological site to occur outside of highlighted areas if detailed soil survey has not been completed or recently updated.
MLRA notes
Major Land Resource Area (MLRA): 053B–Central Dark Brown Glaciated Plains
Central Dark Brown Glaciated Plains MLRA is an expansive and agriculturally important region consisting of about 12,000,000 acres. The MLRA includes all or portions of 25 counties in east-central and southeastern North Dakota, northeastern South Dakota and the extreme northeast corner of Montana.
Most of MLRA 53B is covered by till: material that was moved and redeposited by the glaciers into a long, large moraine known as the Missouri Coteau; some nearly level to rolling ground moraine areas are included. Pre- glaciated bedrock is exposed by geologic erosion on some breaks along edges of the MLRA. A few areas of shale are exposed on the southeast edge and several areas of sandstone and loamstone are exposed on the west edge (bordering MLRA 54). Glacial sediment covers the bedrock and is known as drift. Much of the moraine has a closed drainage system, but integrated drainage is also present (primarily in areas with geologic erosion).
The Missouri Coteau Region is the western edge of the glaciated land in North Dakota. It consists of nearly level to very steep glacial till plains and moraines. Many elevated ice-walled lake plains occur on the moraine. Some areas are dissected by glacial outwash channels. MLRA 53B is located within the boundaries of the Prairie Pothole Region with numerous wetlands (particularly in areas with closed drainage systems). It is part of the Northern Mixed Grass Prairie region. The Missouri River flows along (or near) the western edge of the MLRA and includes two large reservoirs, Lake Sakakawea and Lake Oahe. Numerous named and unnamed tributaries originate in MLRA 53B and outlet into the Missouri River (MLRA 54). In the northeastern part of the MLRA, integrated drainage systems contribute water to the Des Lacs River (MLRA 55A). In the southeastern part of the MLRA, integrated drainage systems contribute water to the James River system (MLRA 55B). The constructed McClusky canal begins at the west end of Audubon Lake and runs east, dissecting MLRA 53B.
This region is primarily farms and livestock ranches; about 56 percent is non-irrigated cropland. Cash-grain, bean and oil production crops are the principal enterprise on many farms, but other feed grains and hay are also grown. Canola is a major crop in the northern part of the MLRA. Common native vegetation on rangeland includes western wheatgrass, needle and thread, big bluestem, sideoats grama, green needlegrass and little bluestem.
Classification relationships
Level IV Ecoregions of the Conterminous United States: 42a – Missouri Coteau; 42b – Collapsed Glacial Outwash; 42c – Missouri Coteau Slope; 42d – Northern Missouri Coteau; 42f – Southern Missouri Coteau; 43c – River Breaks; and 46h – Northern Dark Brown Prairie.
Ecological site concept
The Sands ecological site is located on uplands – typically on outwash plains, sandy lake plains, and on eolian sand sheets which mantle till plains and lake plains; it also occurs on areas of sedimentary plains exposed by geologic erosion. The soils typically are very deep, but deep soils are allowable. The surface layer is most commonly loamy fine sand or loamy sand, but fine sandy loam (<10 inches thick) and loamy coarse sand also occur. The subsoil texture ranges from loamy fine sand to coarse sand. The subsoil may form a ball, but it does not ribbon. Some soils have loamy or clayey material at a depth below 20 inches. Soil on this site is well drained to excessively drained. On the landscape, this site is above the Sandy Claypan ecological site. The Sandy ecological site occurs on similar landscape positions; it is fine sandy loam or sandy loam to a depth >10 inches. The Choppy Sands site occurs on adjacent areas with >15% slopes. These Choppy Sands sites are wind-worked; as a result, the topsoil has been eroded. Where Loamy, Thin Loamy, or Shallow Sandy ecological sites are associated, they are above the Sands site on the landscape.
To see a full copy of the ecological site description with all tables and the full version 5 rangeland health worksheet. Please use the following hyperlink:
https://efotg.sc.egov.usda.gov/references/public/ND/53B_Sands_Narrative_FINAL_Ref_FSG.pdf
Associated sites
R053BY008ND |
Sandy This site occurs on similar landscape positions. It has fine sandy loam or sandy loam textures (forms a ribbon <1 inch long) to a depth >10 inches. |
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R053BY014ND |
Choppy Sands This site occurs on coarse-textured area with slopes >15 percent. The surface and subsoil layers do not form a ribbon. If a dark-colored surface layer occurs, it is <9 inches thick (typically <5 inches thick). |
R053BY015ND |
Thin Loamy This site occurs on higher, convex slopes on till plains and lake plains. The surface and subsoil layers form a ribbon 1 to 2 inches long. It is highly calcareous (strong or violent effervescence) within a depth of 8 inches. |
R053BY011ND |
Loamy This site occurs on higher, linear slopes on till plains and lake plains. The surface and subsoil layers form a ribbon 1 to 2 inches long. Depth to carbonates is >8 inches. |
R053BY026ND |
Sandy Claypan This site occurs lower on the landscape. It has a root-restrictive claypan (forms a ribbon <1 inch long) starting at a depth between 6 to 20 inches. |
R053BY027ND |
Shallow Sandy This site occurs on higher, convex slopes on sedimentary plains. It has root-restrictive sandstone within a depth of 20 inches. |
Similar sites
R053BY008ND |
Sandy This site occurs on similar landscape positions. It has fine sandy loam or sandy loam textures (forms a ribbon <1 inch long) to a depth >10 inches. |
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R053BY014ND |
Choppy Sands This site occurs on coarse-textured area with slopes >15 percent. The surface and subsoil layers do not form a ribbon. If a dark-colored surface layer occurs, it is <9 inches thick (typically <5 inches thick). |
Table 1. Dominant plant species
Tree |
Not specified |
---|---|
Shrub |
Not specified |
Herbaceous |
(1) Calamovilfa longifolia |
Physiographic features
This site typically occurs on outwash plains, sandy glacial lake plains, and eolian sand sheets; coarse-textured eolian materials occur on till plains and lake plains. It also occurs on side slopes of exposed areas of sedimentary plains. Slope ranges from 0 to 15 percent (see Site Development and Testing section).
Landform: outwash plain, lake plain, sand sheet, sedimentary plain
.
Table 2. Representative physiographic features
Landforms |
(1)
Outwash plain
(2) Lake plain (3) Sand sheet (4) Plain |
---|---|
Runoff class | Negligible to medium |
Flooding frequency | None |
Ponding frequency | None |
Elevation | 1,280 – 2,560 ft |
Slope | 15% |
Water table depth | 48 – 80 in |
Aspect | Aspect is not a significant factor |
Climatic features
MLRA 53B is considered to have a continental climate – cold winters and hot summers, low humidity, light rainfall, and much sunshine. Extremes in temperature are characteristic of the MLRA. The climate is the result of this MLRA’s location in the geographic center of North America. There are few natural barriers on the northern Great Plains. The air masses move unobstructed across the plains and account for rapid changes in temperature.
Annual precipitation ranges from 15 to 20 inches per year. The normal average annual temperature is about 41° F. January is the coldest month with average temperatures ranging from about 4° F (Powers Lake, ND) to about 10° F (Pollock, SD). July is the warmest month with temperatures averaging from about 67° F (Powers Lake, ND) to about 72° F (Pollock, SD). The range of normal average monthly temperatures between the coldest and warmest months is about 62° F. This large annual range attests to the continental nature of this MLRA's climate. Winds average about 11 miles per hour annually, ranging from about 13 miles per hour during the spring to about 10 miles per hour during the summer. Daytime winds are generally stronger than nighttime and occasional strong storms may bring brief periods of high winds with gusts to more than 50 miles per hour.
Growth of native cool-season plants begins in late March and continues to early to mid-July. Native warm- season plants begin growth in mid-May and continue to the end of August. Greening up of cool-season plants can occur in September and October when adequate soil moisture is present.
Table 3. Representative climatic features
Frost-free period (characteristic range) | 88-117 days |
---|---|
Freeze-free period (characteristic range) | 115-135 days |
Precipitation total (characteristic range) | 15-20 in |
Frost-free period (actual range) | 84-120 days |
Freeze-free period (actual range) | 109-136 days |
Precipitation total (actual range) | 15-21 in |
Frost-free period (average) | 102 days |
Freeze-free period (average) | 125 days |
Precipitation total (average) | 18 in |
Figure 2. Monthly precipitation range
Figure 3. Monthly minimum temperature range
Figure 4. Monthly maximum temperature range
Figure 5. Monthly average minimum and maximum temperature
Figure 6. Annual precipitation pattern
Figure 7. Annual average temperature pattern
Climate stations used
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(1) GARRISON [USW00094041], Garrison, ND
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(2) WILDROSE 3NW [USC00329400], Wildrose, ND
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(3) TIOGA 1E [USC00328737], Tioga, ND
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(4) POWERS LAKE 1N [USC00327281], Powers Lake, ND
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(5) ROSCOE [USC00397277], Roscoe, SD
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(6) LEOLA [USC00394891], Leola, SD
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(7) GACKLE [USC00323309], Gackle, ND
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(8) WILTON [USC00329455], Wilton, ND
Influencing water features
This site does not receive significant additional water, either as runoff from adjacent slopes or from a seasonal high-water table. Depth to the water table exceeds 4 feet in the spring and commonly exceeds 6 feet in the summer months. Surface infiltration is moderately rapid to very rapid. Permeability is rapid in the sandy materials; where a contrasting texture is present below a depth 20 inches, it is moderately slow to moderate in that layer. Water loss is through percolation below the root zone and evapotranspiration.
Soil features
Soils associated with Sands ES are in the Mollisol and Entisol orders. The Mollisols are classified further as Entic Haplustolls, Typic Haplustolls, and Typic Paleustolls. The Entisols are classified further as Typic Ustipsamments. These soils were developed under prairie vegetation. They formed in glaciofluvial deposits, in glaciolacustrine sediments, in eolian deposits over till or glaciolacustrine deposits, or in deeply weathered residuum (from sandstone).
The common features of soils in this site are coarse, non-gravelly textures within a depth of 10 inches (soil may form a ball, but it does not form a ribbon) that extend to a depth exceeding 20 inches and limited available water capacity. The soils typically are very deep. A few soils may have sandstone below a depth of 40 inches. The soils are well drained to excessively drained. The surface layer is most commonly loamy fine sand or loamy sand, but fine sandy loam (<10 inches thick) and loamy coarse sand also occur. The subsoil texture ranges from loamy fine sand to coarse sand. Some soils have loamy or clayey materials below a depth of 20 inches.
Salinity is none or very slight (E.C. <2 dS/m) in the sandy materials; where a loamy or clayey substratum occurs, it may increase to slight (E.C. <4 dS/m). Sodicity is none to a depth >40 inches. Soil reaction in the surface soil is moderately acid to slightly alkaline (pH 5.6 to 7.8) and slightly acid to moderately alkaline (pH 6.1 to 8.4) below. Calcium carbonate content is none to moderately low in the sandy materials (<10%) but where contrasting materials occur deep in the profile, it can be as high as 30 percent.
The soil surface is stable and intact. Sub-surface soil layers are non-restrictive to water movement and root penetration. Major soil series correlated to the Sands site are Krem, Lihen, Schaller, Telfer, and Yecross. Also, an ustic taxadjunct to the Hecla series (established for the udic moisture regime) is included in the site.
Access Web Soil Survey (https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx) for specific local soils information.
Table 4. Representative soil features
Parent material |
(1)
Glaciofluvial deposits
(2) Glaciolacustrine deposits (3) Eolian deposits (4) Residuum (5) Outwash (6) Lacustrine deposits (7) Sandstone |
---|---|
Surface texture |
(1) Loamy fine sand (2) Loamy sand (3) Loamy coarse sand |
Family particle size |
(1) Sandy |
Drainage class | Well drained to excessively drained |
Permeability class | Rapid |
Depth to restrictive layer | 40 – 80 in |
Soil depth | 40 – 80 in |
Surface fragment cover <=3" | 3% |
Surface fragment cover >3" | 1% |
Available water capacity (0-40in) |
2 – 5 in |
Calcium carbonate equivalent (0-20in) |
10% |
Electrical conductivity (0-20in) |
2 mmhos/cm |
Sodium adsorption ratio (0-40in) |
5 |
Soil reaction (1:1 water) (0-40in) |
5.6 – 8.4 |
Subsurface fragment volume <=3" (Depth not specified) |
5% |
Subsurface fragment volume >3" (Depth not specified) |
1% |
Ecological dynamics
This ecological site description is based on nonequilibrium ecology and resilience theory and utilizes a State- and-Transition Model (STM) diagram to organize and communicate information about ecosystem change as a basis for management. The ecological dynamics characterized by the STM diagram reflect how changes in ecological drivers, feedback mechanisms, and controlling variables can maintain or induce changes in plant community composition (phases and/or states). The application of various management actions, combined with weather variables, impact the ecological processes which influence the competitive interactions, thereby maintaining or altering plant community structure.
Prior to European influence, the historical disturbance regime for MLRA 53B included frequent fires, both anthropogenic and natural in origin. Most fires, however, were anthropogenic fires set by Native Americans. Native Americans set fires in all months except perhaps January. These fires occurred in two peak periods, one from March-May with the peak in April and another from July-November with the peak occurring in October. Most of these fires were scattered and of small extent and duration. The grazing history would have involved grazing and browsing by large herbivores (such as American bison, elk, and whitetail deer). Herbivory by small mammals, insects, nematodes, and other invertebrates are also important factors influencing the production and composition of the communities. Grazing and fire interaction, particularly when coupled with drought events, influenced the dynamics discussed and displayed in the following state and transition diagram and descriptions.
Following European influence, this ecological site generally has had a history of grazing by domestic livestock, particularly cattle, which along with other related activities (e.g., fencing, water development, fire suppression) has changed the disturbance regime of the site. Changes will occur in the plant communities due to these and other factors.
Weather fluctuations coupled with managerial factors may lead to changes in the plant communities and may, under adverse impacts, result in a slow decline in vegetative vigor and composition. However, under favorable conditions the botanical composition may resemble that prior to European influence.
Five vegetative states have been identified for the site (Reference, Native/Invaded, Invaded, Shrub, and Go- Back). Within each state one or more community phases have been identified. These community phases are named based on the more dominant and visually conspicuous species; they have been determined by study of historical documents, relict areas, scientific studies, and ecological aspects of plant species and plant communities. Transitional pathways and thresholds have been determined through similar methods.
State 1: Reference State represents the natural range of variability that dominated the dynamics of this ecological site prior to European influence. Dynamics of the state were largely determined by variations in climate and weather (e.g., drought), as well as that of fire (e.g., timing, frequency) and grazing by native herbivores (e.g., frequency, intensity, selectivity). Due to those variations, the Reference State is thought to have shifted temporally and spatially between two plant community phases.
Currently the primary disturbances include widespread introduction of exotic species, concentrated livestock grazing, lack of fire, and perhaps long-term non-use and no fire. Because of these changes, particularly the widespread occurrence of exotic species, as well as other environmental changes, the Reference State is considered to no longer exist. Thus, the presence of exotic species on the site precludes it from being placed in the Reference State. It must then be placed in one of the other states, commonly State 2: Native/Invaded State (T1A).
State 2: Native/Invaded State. Colonization of the site by exotic plants results in a transition from State 1: Reference State to State 2: Native/Invaded State (T1A). This transition was probably inevitable; it often resulted from colonization by exotic cool-season grasses (such as Kentucky bluegrass, smooth brome, and/or crested wheatgrass) which have been particularly and consistently invasive under extended periods of non-use and no fire. Other exotic plants, such as Canada thistle and leafy spurge, are also known to invade the site.
Three community phases have been identified for this state; they are similar to the community phases in the Reference State but have now been invaded by exotic cool-season grasses. These exotic cool-season grasses can be expected to increase. As that increase occurs, plants more desirable to wildlife and livestock decline. A decline in forb diversity can also be expected. Under non-use or minimal use management, mulch increases and may become a physical barrier to plant growth. This also changes the micro-climate near the soil surface and may alter infiltration, nutrient cycling, and biological activity near the soil surface. As a result, these factors combined with shading cause desirable native plants to have increasing difficulty remaining viable and recruitment declines.
To slow or limit the invasion of these exotic grasses or other exotic plants, it is imperative that managerial options (e.g., prescribed grazing, prescribed burning) be carefully constructed and evaluated with respect to that objective. If management does not include measures to control or reduce these exotic plants, the transition to State 3: Invaded State should be expected (T2A).
State 3: Invaded State. The threshold for this state is reached when both the exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass) exceed 30% of the plant community and native grasses represent less than 40% of the community. One community phase has been identified for this state.
The exotic cool-season grasses can be quite invasive and often form monotypic stands. As they increase, both forage quantity and quality of the annual production becomes increasingly restricted to late spring and early summer, even though annual production may increase. Forb diversity often declines. Under non-use or minimal use management, mulch can increase and become a physical barrier to plant growth which alters nutrient cycling, infiltration, and soil biological activity. As such, desirable native plants become increasingly displaced.
Once the state is well established, prescribed burning and prescribed grazing techniques have been largely ineffective in suppressing or eliminating the exotic cool-season grasses, even though some short-term reductions may appear successful. However, assuming there is an adequate component of native grasses to respond to treatments, a restoration pathway to State 2: Native/Invaded State may be accomplished with the implementation of long-term prescribed grazing in conjunction with prescribed burning (R3A). This state may also transition to State 4: Shrub State during extended periods of no use and no fire (T3A).
State 4: Shrub State. Historically, individual (or small patches of) shrubs and/or trees were scattered across the site. However, a marked increase in fire suppression, climate change, increase in non-use and light use, and other factors have enabled these patches to expand and become more widespread. Encroachment of both native and exotic woody species (e.g., Rocky Mountain juniper, Russian olive, Siberian elm, western snowberry, silverberry, ponderosa. pine, eastern red cedar) are examples of woody vegetation increasing in extent and impinging on the ecological integrity of the grassland biome. Windbreaks and other tree plantings can contain problematic and invasive species (e.g., eastern redcedar, Rocky Mountain juniper, ponderosa pine, Russian olive), which can contaminate surrounding grasslands. This results in increased long-term costs to maintain or restore this ecological site in native grasses and forbs.
State 5: Go-Back State often results from cropland abandonment and consists of only one community phase. This weedy assemblage may include noxious weeds that need control. Over time, the exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass) will likely predominate.
Initially, due to extensive bare ground and a preponderance of shallow rooted annual plants, the potential for soil erosion is high. Plant species richness may be high, but overall diversity (i.e., equitability) is typically low, with the site dominated by a relatively small assemblage of species. Due to the lack of native perennials and other factors, restoring the site with the associated ecological processes is difficult. However, a successful range planting may result in something approaching State 2: Native/Invaded State (R5A). Following planting, prescribed grazing, prescribed burning, haying, and the use of herbicides will generally be necessary to achieve the desired result and control weeds, some of which may be noxious weeds. A failed range planting and/or secondary succession will lead to State 3: Invaded State (R5B).
The following state and transition model diagram illustrates the common states, community phases, community pathways, and transition and restoration pathways that can occur on the site. These are the most common plant community phases and states based on current knowledge and experience; changes may be made as more data are collected. Pathway narratives describing the site’s ecological dynamics reference various management practices (e.g., prescribed grazing, prescribed burning, brush management, herbaceous weed treatment) which, if properly designed and implemented, will positively influence plant community competitive interactions. The design of these management practices will be site specific and should be developed by knowledgeable individuals; based upon management goals and a resource inventory; and supported by an ongoing monitoring protocol.
When the management goal is to maintain an existing plant community phase or restore to another phase within the same state, modification of existing management to ensure native species have the competitive advantage may be required. To restore a previous state, the application of two or more management practices in an ongoing manner will be required. Whether using prescribed grazing, prescribed burning, or a combination of both with or without additional practices (e.g., brush management), the timing and method of application needs to favor the native species over the exotic species. Adjustments to account for variations in annual growing conditions and implementing an ongoing monitoring protocol to track changes and adjust management inputs to ensure desired outcome will be necessary.
The plant community phase composition table(s) has been developed from the best available knowledge including research, historical records, clipping studies, and inventory records. As more data are collected, plant community species composition and production information may be revised.
State and transition model
More interactive model formats are also available.
View Interactive Models
Click on state and transition labels to scroll to the respective text
Ecosystem states
States 2 and 5 (additional transitions)
State 2 submodel, plant communities
State 3 submodel, plant communities
State 4 submodel, plant communities
State 5 submodel, plant communities
State 1
Reference State
This state represents the natural range of variability that dominated the dynamics of this ecological site prior to European influence. The primary disturbance mechanisms for this site in the reference condition included frequent fire and grazing by large herding ungulates. Timing of fires and grazing, coupled with weather events, dictated the dynamics that occurred within the natural range of variability. These factors likely caused the community to shift both spatially and temporally between two community phases.
Characteristics and indicators. (i.e., characteristics and indicators that can be used to distinguish this state from others). Because of changes in disturbances and other environmental factors (particularly the widespread occurrence of exotic species), the Reference State is considered to no longer exist.
Resilience management. (i.e., management strategies that will sustain a state and prevent a transition). If intact, the reference state should probably be managed with current disturbance regimes which has permitted the site to remain in reference condition as well as maintaining the quality and integrity of associated ecological sites. Maintenance of the reference state is contingent upon a monitoring protocol to guide management.
Community 1.1
Needlegrasses-Prairie Sandreed-Bluestems (Hesperostipa spp.- Calamovilfa longifolia-Andropogon hallii, Schizachrium scoparium)
This community phase was historically the most dominant both temporally and spatially. Warm-season grasses dominated this plant community with cool-season grasses and sedges being subdominant. The major warm-season grasses included prairie sandreed, sand bluestem, and little bluestem. Major cool-season grasses and sedges included needle and thread, porcupinegrass, and threadleaf sedge. Other grasses included blue grama, western wheatgrass, prairie Junegrass, and switchgrass. Tarragon, Cuman ragweed, white sagebrush, sunflowers and goldenrods were among the more common forbs. Common shrubs included leadplant, western snowberry, prairie sagewort, and rose. Annual production likely varied from about 1600-3400 pounds per acre with grasses and grass-likes, forbs, and shrubs contributing about 80%, 15% and 5%, respectively. Both warm-season grasses and cool-season grasses were well represented in the community; as a result, production is distributed throughout the growing season. This community represents the plant community phase upon which interpretations are primarily based and is described in the “Plant Community Composition and Group Annual Production” portion of this ecological site description.
Figure 8. Annual production by plant type (representative values) or group (midpoint values)
Table 5. Annual production by plant type
Plant type | Low (lb/acre) |
Representative value (lb/acre) |
High (lb/acre) |
---|---|---|---|
Grass/Grasslike | 1360 | 2125 | 2870 |
Forb | 195 | 288 | 400 |
Shrub/Vine | 45 | 88 | 130 |
Total | 1600 | 2501 | 3400 |
Figure 9. Plant community growth curve (percent production by month). ND5304, Missouri Coteau, warm-season dominant, cool-season sub-dominant.. Warm-season dominant, cool-season sub-dominant..
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
J | F | M | A | M | J | J | A | S | O | N | D |
0 | 0 | 1 | 5 | 20 | 38 | 25 | 8 | 3 | 0 | 0 | 0 |
Community 1.2
Sedges/Blue Grama-Needle and Thread-Prairie Sandreed (Carex spp./Bouteloua gracilis-Hesperostipa comata-Calamovilfa longifolia)
This community phase occurred during multiyear drought (i.e., two or more years) with or without heavy grazing which resulted in increases in blue grama and sedges with corresponding decreases in the bluestems compared to Community Phase 1.1. Forbs and shrubs (such as tarragon, prairie sagewort, and spinystar) would also have increased.
Pathway 1.1A
Community 1.1 to 1.2
Community Phase Pathway 1.1 to 1.2 occurred during multiyear drought (i.e., two or more years) with or without heavy grazing which resulted in increases in blue grama and sedges with corresponding decreases in the bluestems.
Pathway 1.2A
Community 1.2 to 1.1
Community Phase Pathway 1.2 to 1.1 occurred with the return to average precipitation with light to moderate grazing, resulting in increases in the bluestems with corresponding decreases in blue grama and sedges.
State 2
Native/Invaded State
This state is similar to State 1: Reference State but has now been colonized by the exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass) which are now present in small amounts. Although the state is still dominated by native grasses, an increase in these exotic cool-season grasses can be expected. These exotic cool-season grasses can be quite invasive on the site and are particularly well adapted to heavy grazing. They also often form monotypic stands. As these exotic cool-season grasses increase, both forage quantity and quality become increasingly restricted to late spring and early summer due to the monotypic nature of the stand, even though annual production may increase. Native forbs generally decrease in production, abundance, diversity, and richness compared to that of State 1: Reference State. These exotic cool-season grasses have been particularly and consistently invasive under extended periods of non-use and no fire. To slow or limit the invasion of these exotic grasses, it is imperative that managerial options (e.g., prescribed grazing, prescribed burning) be carefully constructed and evaluated with respect to that objective. If management does not include measures to control or reduce these exotic cool-season grasses, the transition to State 3: Invaded State should be expected. Annual production of this state can be quite variable, in large part due to differences in the amount of exotic cool-season grasses. Production, however, may be expected to be within the range between that of State 1: Reference State Community Phase 1.1 (1600-3400 pounds per acre) and State 3: Invaded State (1000-2200 pounds per acre).
Characteristics and indicators. (i.e., characteristics that can be used to distinguish this state from others). The presence of trace amounts of exotic cool-season grasses indicates a transition from State 1 to State 2. The presence of exotic biennial or perennial leguminous forbs (i.e., sweet clover, black medic) may not, on their own, indicate a transition from State 1 to State 2 but may facilitate that transition.
Resilience management. (i.e., management strategies that will sustain a state and prevent a transition). To slow or limit the invasion of these exotic grasses, it is imperative that managerial options (e.g., prescribed grazing, prescribed burning) be carefully constructed and evaluated with respect to that objective. Grazing management should be applied that enhances the competitive advantage of native grass and forb species. This may include: (1) grazing when exotic cool-season grasses are actively growing and native cool- season grasses are dormant; (2) applying proper deferment periods allowing native grasses to recover and maintain or improve vigor; (3) adjusting overall grazing intensity to reduce excessive plant litter (above that needed for rangeland health indicator #14 – see Rangeland Health Reference Worksheet); (4) incorporating early heavy spring utilization which focuses grazing pressure on exotic cool-season grasses and reduces plant litter, provided that livestock are moved when grazing selection shifts from exotic cool-season grasses to native grasses. Prescribed burning should be applied in a manner that maintains or enhances the competitive advantage of native grass and forb species. Prescribed burns should be applied as needed to adequately reduce/remove excessive plant litter and maintain the competitive advantage for native species. Timing of prescribed burns (spring vs. summer vs. fall) should be adjusted to account for differences in annual growing conditions and applied during windows of opportunity to best shift the competitive advantage to the native species.
Community 2.1
Needlegrasses-Prairie Sandreed-Bluestems (Hesperostipa spp.- Calamovilfa longifolia-Andropogon hallii, Schizachrium scoparium)

Figure 10. Needlegrasses-Prairie Sandreed-Bluestems
This community phase is similar to Community Phase 1.1 but has been colonized by exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass). However, these exotics are present in smaller amounts with the community still dominated by native grasses. Annual production may be comparable to that of Community Phase 1.1 (1600-3400 pounds per acre). However, as the exotic cool-season grasses increase, peak production will shift to earlier in the growing season.
Community 2.2
Sedges/Blue Grama-Needle and Thread-Prairie Sandreed/Forbs (Carex spp./Bouteloua gracilis-Hesperostipa comata-Calamovilfa longifolia/Forbs)
This community phase is similar to Community Phase 1.2 but has now been colonized by exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass). These exotic cool-season grasses, however, are present in smaller amounts with the community still dominated by native grasses. Forbs have increased in comparison to Community Phase 2.1 and often include Cuman ragweed, white sagebrush, goldenrod, and Indian breadroot. This community phase is often dispersed throughout a pasture in an overgrazed/ undergrazed pattern, typically referred to as patch grazing. Some overgrazed areas will exhibit the impacts of heavy use, while the ungrazed areas will have a build-up of litter and increased plant decadence. This is a typical pattern found in properly stocked pastures grazed season-long. As a result, Kentucky bluegrass tends to increase more in the undergrazed areas while the more grazing tolerant short statured species (such as blue grama and sedges) increase in the heavily grazed areas. If present, Kentucky bluegrass may increase under heavy grazin
Community 2.3
Needle and Thread/Forbs/Exotic Cool Season Grasses (Hesperostipa comata/Forbs/Exotic Col-Season Grasses)

Figure 11. Needle and Thread/Forbs/Exotic Cool Season Grasses
This community phase results from extended periods of non-use or very light grazing, and no fire. The exotic cool-season grasses have markedly increased, along with a corresponding decrease in native grasses, particularly the warm-season species. There is also a noticeable increase in forbs (such as Cuman ragweed, white sagebrush, goldenrod, and white heath aster). Shrubs, such as rose and western snowberry, may also increase. This community phase is approaching the threshold leading to a transition to State 3: Invaded State. As a result, it is an “at risk” community. If management does not include measures to control or reduce these exotic cool-season grasses, the transition to State 3: Invaded State should be expected.
Pathway 2.1A
Community 2.1 to 2.2
Community Phase Pathway 2.1 to 2.2 occurs during multiyear drought (i.e., two or more years), with or without heavy grazing, which results in increases in blue grama and sedges with corresponding decreases in the bluestems.
Pathway 2.1B
Community 2.1 to 2.3


Community Phase Pathway 2.1 to 2.3 occurs during extended periods of non-use or very light grazing, and no fire. This results in the buildup of mulch along with marked increases in the exotic cool-season grasses and corresponding decreases in native grasses, particularly the warm-season species. There is also a noticeable increase in forbs (such as white sagebrush, goldenrod, and white heath aster). Shrubs, such as rose and western snowberry, may also increase.
Pathway 2.2A
Community 2.2 to 2.1
Community Phase Pathway 2.2 to 2.1 occurs with return to average precipitation and the implementation of long-term prescribed burning and prescribed grazing. This results in noticeable increases in the bluestems with corresponding decreases in blue grama and sedges.
Pathway 2.2B
Community 2.2 to 2.3
Community Phase Pathway 2.2 to 2.3 occurs with extended periods of non-use or very light grazing, and no fire. This results in the buildup of mulch along with a marked increase in the exotic cool-season grasses and a corresponding decrease in native grasses, particularly the warm-season species. There is also a noticeable increase in forbs (such as Cuman ragweed, white sagebrush, goldenrod, and white heath aster). Shrubs, such as rose and western snowberry, may also increase.
Pathway 2.3A
Community 2.3 to 2.1


Community Phase Pathway 2.3 to 2.1 occurs with the implementation of long-term prescribed grazing and prescribed burning which results in marked decreases in the exotic cool-season grasses along with corresponding increases in the warm-season grasses (particularly prairie sandreed, big bluestem, and little bluestem).
State 3
Invaded State
This state is the result of invasion and dominance by the exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass). Other exotic plants may also invade the site (e.g., leafy spurge, Canada thistle). The exotic cool-season grasses can be quite invasive on the site and are particularly well adapted to heavy grazing. They also often form monotypic stands. As these exotic cool-season grasses increase, both forage quantity and quality become increasingly restricted to late spring and early summer due to the monotypic nature of the stand, even though annual production may increase. Native forbs generally decrease in production, abundance, diversity, and richness compared to that of State 1: Reference State. Common forbs often include Cuman ragweed, white heath aster, goldenrod, and white sagebrush. Western snowberry and rose are often among the common shrubs. Once the state is well established, prescribed burning and grazing techniques have been largely ineffective in suppressing or eliminating exotic species, even though some short-term reductions may appear successful. Annual production of this state may vary widely, in part due to variations in the extent of invasion by exotic cool-season grasses. However, annual production may be in the range of 1000-2200 pounds per acre.
Characteristics and indicators. (i.e., characteristics that can be used to distinguish this state from others). This site is characterized by exotic cool-season grasses constituting greater than 30 percent of the annual production and native grasses constituting less than 40 percent of the annual production.
Resilience management. (i.e., management strategies that will sustain a state and prevent a transition). Light or moderately stocked continuous, season-long grazing or a prescribed grazing system which incorporates adequate deferment periods between grazing events and proper stocking rate levels will maintain this State. Application of herbaceous weed treatment, occasional prescribed burning, and/or brush management may be needed to manage noxious weeds and increasing shrub (e.g., western snowberry) populations.
Community 3.1
Exotic Cool-Season Grasses/Forbs

Figure 12. Dominated by native cool- season grasses and annual forbs. Disturbance caused by June bug larvae, skunks and rodents.

Figure 13. Dominated by native cool- season grasses, exotic cool-season grasses, and annual forbs. Disturbance caused by June bug larvae, skunks, and rodents.
This community phase is dominated by exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass), often with a conspicuous forb component. Excessive accumulation of mulch may also be present, particularly when dominated by Kentucky bluegrass. Common forb and shrub species often include white sagebrush, goldenrods, sunflowers, Cumin ragweed, western snowberry, and rose. The exotic forbs, leafy spurge and Canada thistle, may also invade the site. Grubbing by skunks most frequently occurs in association with high amounts of Kentucky bluegrass (see figures 3 and 4). Total production may be in the range of 1000-2200 pounds per acre. The longer this community phase exists, the more resilient it becomes. Natural or management disturbances that reduce the cover of Kentucky bluegrass or smooth brome are typically short-lived.
State 4
Shrub State
This state is commonly dominated by western snowberry and/or poison ivy along with chokecherry. It often develops during extended periods of non-use or very light grazing, and no fire, which enables shrubs to dominate the site. A marked increase in non-use management and active fire suppression since European influence has enabled this state to expand and become more widespread. This state is commonly dominated by western snowberry with Kentucky bluegrass understory or poison ivy with an assortment of both warm-season and cool-season grasses. Poison ivy often is the dominant shrub where it has encroached on the site from adjacent wooded areas. Common associated shrubs and forbs include chokecherry, rose, white sagebrush, goldenrods, sunflowers, and Cumin ragweed.
Characteristics and indicators. (i.e., characteristics and indicators that can be used to distinguish this state from others). The dominance of woody species (by cover and production) distinguishes this state from other herbaceously dominated states.
Resilience management. (i.e., management strategies that will sustain a state and prevent a transition). This state is resistant to change in the long-term absence of fire. Restoration efforts would require the use of prescribed fire, mechanical treatment, and prescribed grazing. Considerable time and effort will be required to restore to other States.
Community 4.1
Shrubs/Forbs/Exotic Cool-Season Grasses

Figure 14. Foreground depicts Community Phase 4.1 dominated shrubs such as poison ivy, snowberry, chokecherry, and plum.
This plant community is commonly dominated by western snowberry, chokecherry, or poison ivy with the graminoid component often dominated by Kentucky bluegrass, although native warm-season and cool-season grasses may also be present. Common associated shrubs and forbs include chokecherry, rose, white sagebrush, goldenrods, sunflowers, and Cumin ragweed.
State 5
Go-Back State
This state is highly variable depending on the level and duration of disturbance related to the T6A transitional pathway. In this MLRA, it often results cessation of annual cropping. It will initially include a variety of annual forbs and grasses, some of which may be noxious weeds and need control. Over time, the exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass) will likely predominate.
Characteristics and indicators. (i.e., characteristics that can be used to distinguish this state from others). Tillage has destroyed the native plant community, altered soil structure and biology, reduced soil organic matter, and resulted in the formation of a tillage induced compacted layer which is restrictive to root growth. Removal of perennial grasses and forbs results in decreased infiltration and increased runoff.
Resilience management. (i.e., management strategies that will sustain a state and prevent a transition). Continued tillage will maintain the state. Control of noxious weeds will be required.
Community 5.1
Annual/Pioneer Perennial /Exotics
This community phase is highly variable depending on the level and duration of disturbance related to the T6A transitional pathway. It will initially include a variety of annual forbs and grasses, including noxious weeds which may need control (e.g., Canada thistle, leafy spurge). Over time, however, the exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass) will likely predominate.
State 6
Any Plant Community
Transition T1A
State 1 to 2
This is the transition from the State 1: Reference State to the State 2: Native/Invaded State due to the introduction and establishment of exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass). This transition was inevitable and corresponded to a decline in native warm-season and cool-season grasses; it may have been exacerbated by chronic season-long or heavy late season grazing. Complete rest from grazing and suppression of fire could also have hastened the transition. The threshold between states was crossed when Kentucky bluegrass, smooth brome, crested wheatgrass, or other exotic plants became established on the site.
Constraints to recovery. (i.e., variables or processes that preclude recovery of the former state). Current knowledge and technology will not facilitate a successful restoration to Reference State.
Transition T2A
State 2 to 3
This Transition from State 2: Native/Invaded State to State 3: Invaded State results from extended periods of non-use or very light grazing, an no fire, but can also occur under other management. Exotic cool-season grasses (e.g., Kentucky bluegrass, smooth brome, crested wheatgrass) become the dominant graminoids. Studies indicate that a threshold may exist in this transition when both Kentucky bluegrass exceeds 30% of the plant community and native grasses represent less than 40% of the plant community composition. Similar thresholds may exist for the other exotic cool-season grasses.
Constraints to recovery. (i.e., variables or processes that preclude recovery of the former state). Variations in growing conditions (e.g., cool, wet spring) will influence effects of various management activities on exotic cool-season grass populations. The opportunity for high intensity spring burns (which can serve to reduce the introduced cool-season species) is severely reduced by early green-up and the lack of fuel.
Restoration pathway R3A
State 3 to 2
This restoration pathway from State 3: Invaded State to State 2: Native/Invaded State occurs with the implementation of long-term prescribed grazing and prescribed burning, assuming there is an adequate component of native grasses to respond to the treatments. Both prescribed grazing and prescribed burning are likely necessary to successfully initiate this restoration pathway, the success of which depends upon the presence of a remnant population of native grasses in Community Phase 3.1. That remnant population, however, may not be readily apparent without close inspection. The application of several prescribed burns may be needed at relatively short intervals in the early phases of this restoration process, in part because many of the shrubs (e.g., western snowberry) sprout profusely following one burn. Early season prescribed burns have been successful; however, fall burning may also be an effective technique. The prescribed grazing should include adequate recovery periods following each grazing event and stocking levels which match the available resources. If properly implemented, this will shift the competitive advantage from the exotic cool-season grasses to the native cool-season grasses.
Context dependence. (i.e., factors that cause variations in plant community shifts, restoration likelihood, and contribute to uncertainty). Grazing management should be applied in a manner that enhances/maximizes the competitive advantage of native grass and forb species over the exotic species. This may include the use of prescribed grazing to reduce excessive plant litter accumulations above that needed for rangeland health indicator #14 (see Rangeland Health Reference Worksheet). Increasing livestock densities may facilitate the reduction in plant litter provided length and timing of grazing periods are adjusted to favor native species. Grazing prescriptions designed to address exotic grass invasion and favor native species may involve earlier, short, intense grazing periods with proper deferment to improve native species health and vigor. Fall (e.g., September, October) prescribed burning followed by an intensive, early spring graze period with adequate deferment for native grass recovery may shift the competitive advantage to the native species, facilitating the restoration to State 2: Native/Invaded. Prescribed burning should be applied in a manner that enhances the competitive advantage of native grass and forb species over the exotic species. Prescribed burns should be applied at a frequency which mimics the natural disturbance regime, or more frequently as is ecologically (e.g., available fuel load) and economically feasible. Burn prescriptions may need adjustment to: (1) account for change in fine fuel orientation (e.g., “flopped” Kentucky bluegrass); (2) fire intensity and duration by adjusting ignition pattern (e.g., backing fires vs head fires); (3) account for plant phenological stages to maximize stress on exotic species while favoring native species (both cool- and warm-season grasses). The longer this community phase exists, the more resilient it becomes. Natural or management disturbances that reduce the cover of Kentucky bluegrass or smooth brome are typically short-lived.
Transition T3A
State 3 to 4
This Transition from State 3: Invaded State to State 4: Shrub State occurs during extended periods of non-use or very light grazing, and no fire. This enables shrubs (commonly western snowberry or poison ivy) to dominate the site.
Constraints to recovery. (i.e., variables or processes that preclude recovery of the former state). The extended fire interval may make recovery doubtful due to the abundance of exotic cool-season grasses and lack of native grasses. Fire intensity along with consumption of available fuels may cause incomplete or patchy burns. Continued recruitment of tree seeds from adjacent sites will hamper site restoration. Reticence to undertake tree removal and the perception that trees may be a desirable vegetation component for wildlife habitat, carbon sequestration, aesthetics, etc. are some of the constraints to recovery. Managers wanting to manage the site for deer, livestock, or grassland nesting birds will need to consider the intensive management required to restore and maintain the site in State 2. The disturbance regime necessary to restore this site to State 2: Native/Invaded State is very labor intensive and costly; therefore, addressing woody removal earlier in the encroachment phase is the most cost-effective treatment for woody control.
Restoration pathway R4A
State 4 to 2
This restoration pathway from State 4: Shrub State to State 2: Native/Invaded State may be accomplished with the implementation of long-term prescribed grazing and prescribed burning, assuming there is an adequate component of native grasses to respond to the treatments. Both prescribed grazing and prescribed burning are likely necessary to successfully initiate this restoration pathway, the success of which depends upon the presence of a remnant population of native grasses in Community Phase 4.1. That remnant population, however, may not be readily apparent without close inspection. The application of several prescribed burns may be needed at relatively short intervals in the early phases of this restoration process, in part because many of the shrubs (e.g., western snowberry) sprout profusely following one burn. Early season prescribed burns have been successful; however, fall burning may also be an effective technique. The prescribed grazing should include adequate recovery periods following each grazing event and stocking levels which match the available resources. If properly implemented, this will shift the competitive advantage from the exotic cool-season grasses to the native cool-season grasses.
Context dependence. (i.e., factors that cause variations in plant community shifts, restoration likelihood, and contribute to uncertainty). Grazing management should be applied in a manner that enhances/maximizes the competitive advantage of native grass and forb species over the exotic species. This may include the use of prescribed grazing to reduce excessive plant litter accumulations above that needed for rangeland health indicator #14 (see Rangeland Health Reference Worksheet). Increasing livestock densities may facilitate the reduction in plant litter provided length and timing of grazing periods are adjusted to favor native species. Grazing prescriptions designed to address exotic grass invasion and favor native species may involve earlier, short, intense grazing periods with proper deferment to improve native species health and vigor. Fall (e.g., September, October) prescribed burning followed by an intensive, early spring graze period with adequate deferment for native grass recovery may shift the competitive advantage to the native species, facilitating the restoration to State 2: Native/Invaded. Prescribed burning should be applied in a manner that enhances the competitive advantage of native grass and forb species over the exotic species. Prescribed burns should be applied at a frequency which mimics the natural disturbance regime, or more frequently as is ecologically (e.g., available fuel load) and economically feasible. Burn prescriptions may need adjustment to: (1) account for change in fine fuel orientation (e.g., “flopped” Kentucky bluegrass); (2) fire intensity and duration by adjusting ignition pattern (e.g., backing fires vs head fires); (3) account for plant phenological stages to maximize stress on exotic species while favoring native species (both cool- and warm-season grasses). The longer this community phase exists, the more resilient it becomes. Natural or management disturbances that reduce the cover of Kentucky bluegrass or smooth brome are typically short-lived
Restoration pathway R4B
State 4 to 3
This restoration pathway from State 4: Shrub State to State 3: Invaded State may be accomplished with the implementation of long-term prescribed grazing and prescribed burning. This pathway is similar to that of Restoration R4A but occurs more frequently when the native component of grasses is not sufficient to restore the site to State 2: Native/Invaded State or when other factors result in the site becoming dominated by the exotic cool-season grasses.
Context dependence. (i.e., factors that cause variations in plant community shifts, restoration likelihood, and contribute to uncertainty). Grazing management should be applied in a manner that enhances/maximizes the competitive advantage of native grass and forb species over the exotic species. This may include the use of prescribed grazing to reduce excessive plant litter accumulations above that needed for rangeland health indicator #14 (see Rangeland Health Reference Worksheet). Increasing livestock densities may facilitate the reduction in plant litter provided length and timing of grazing periods are adjusted to favor native species. Grazing prescriptions designed to address exotic grass invasion and favor native species may involve earlier, short, intense grazing periods with proper deferment to improve native species health and vigor. Fall (e.g., September, October) prescribed burning followed by an intensive, early spring graze period with adequate deferment for native grass recovery may shift the competitive advantage to the native species, facilitating the restoration to State 2: Native/Invaded. Prescribed burning should be applied in a manner that enhances the competitive advantage of native grass and forb species over the exotic species. Prescribed burns should be applied at a frequency which mimics the natural disturbance regime, or more frequently as is ecologically (e.g., available fuel load) and economically feasible. Burn prescriptions may need adjustment to: (1) account for change in fine fuel orientation (e.g., “flopped” Kentucky bluegrass); (2) fire intensity and duration by adjusting ignition pattern (e.g., backing fires vs. head fires); (3) account for plant phenological stages to maximize stress on exotic species while favoring native species (both cool- and warm-season grasses). The longer this community phase exists, the more resilient it becomes. Natural or management disturbances that reduce the cover of Kentucky bluegrass or smooth brome are typically short-lived.
Restoration pathway R5A
State 5 to 2
This restoration pathway from State 5: Go-Back State to State 2: Native/Invaded State can be accomplished with a successful range planting. Following planting, prescribed grazing, prescribed burning, haying, or use of herbicides will generally be necessary to achieve the desired result and control any noxious weeds. It may be possible using selected plant materials and agronomic practices to approach something very near the functioning of State 2: Native/Invaded State. Application of chemical herbicides and the use of mechanical seeding methods using adapted varieties of the dominant native grasses are possible and can be successful. After establishment of the native plant species, prescribed grazing should include adequate recovery periods following each grazing event and stocking levels which match the available resources; management objectives must include the maintenance of those species, the associated reference state functions, and continued treatment of exotic grasses.
Context dependence. (i.e., factors that cause variations in plant community shifts, restoration likelihood, and contribute to uncertainty). A successful range planting will include proper seedbed preparation, weed control (both prior to and after the planting), selection of adapted native species representing functional/structural groups inherent to the State 1, and proper planting technique. Management (e.g., prescribed grazing, prescribed burning) during and after establishment must be applied in a manner that maintains the competitive advantage for the seeded native species. Adding non-native species can impact the above and below ground biota. Elevated soil nitrogen levels have been shown to benefit smooth brome and Kentucky bluegrass more than some native grasses. As a result, fertilization, exotic legumes in the seeding mix, and other techniques that increase soil nitrogen may promote smooth brome and Kentucky bluegrass invasion. The method or methods of herbaceous weed treatment will be site specific to each situation but, generally, the goal would be to apply the pesticide, mechanical control, or biological control (either singularly or in combination) in a manner that shifts the competitive advantage from the targeted species to the native grasses and forbs. The control method(s) should be as specific to the targeted species as possible to minimize impacts to non-target species.
Restoration pathway R5B
State 5 to 3
A failed range planting and/or secondary succession will lead to State 3: Invaded State.
Context dependence. (i.e., factors that cause variations in plant community shifts, restoration likelihood, and contribute to uncertainty). Failed range plantings can result from many causes (both singularly and in combination) including drought, poor seedbed preparation, improper planting methods, seeded species not adapted to the site, insufficient weed control, herbicide carryover, poor seed quality (purity & germination), and/or improper management.
Restoration pathway T5A
State 5 to 4
This transition from any plant community to State 5: Go-Back State. It often results from cessation of annual planting resulting in a “go-back” situation. Soil conditions can be quite variable on the site, in part due to variations in the management/cropping history (e.g., development of a tillage induced compacted layer (plow pan), erosion, fertility, and/or herbicide/pesticide carryover). Thus, soil conditions should be assessed when considering restoration techniques.
Restoration pathway T6A
State 6 to 5
Additional community tables
Table 6. Community 1.1 plant community composition
Group | Common name | Symbol | Scientific name | Annual production (lb/acre) | Foliar cover (%) | |
---|---|---|---|---|---|---|
Grass/Grasslike
|
||||||
1 | Tall & Mid Warm-Season | 500–1250 | ||||
prairie sandreed | CALO | Calamovilfa longifolia | 375–750 | – | ||
sand bluestem | ANHA | Andropogon hallii | 125–375 | – | ||
little bluestem | SCSC | Schizachyrium scoparium | 25–250 | – | ||
2 | Needlegrass | 125–500 | ||||
needle and thread | HECOC8 | Hesperostipa comata ssp. comata | 125–375 | – | ||
porcupinegrass | HESP11 | Hesperostipa spartea | 25–125 | – | ||
3 | Other Native Grasses | 125–500 | ||||
blue grama | BOGR2 | Bouteloua gracilis | 50–125 | – | ||
western wheatgrass | PASM | Pascopyrum smithii | 0–125 | – | ||
switchgrass | PAVI2 | Panicum virgatum | 0–125 | – | ||
hairy grama | BOHI2 | Bouteloua hirsuta | 0–75 | – | ||
Grass, perennial | 2GP | Grass, perennial | 25–75 | – | ||
sand dropseed | SPCR | Sporobolus cryptandrus | 0–50 | – | ||
prairie Junegrass | KOMA | Koeleria macrantha | 25–50 | – | ||
Scribner's rosette grass | DIOLS | Dichanthelium oligosanthes var. scribnerianum | 0–25 | – | ||
4 | Grass-Likes | 125–250 | ||||
threadleaf sedge | CAFI | Carex filifolia | 75–175 | – | ||
sun sedge | CAINH2 | Carex inops ssp. heliophila | 25–75 | – | ||
Grass-like (not a true grass) | 2GL | Grass-like (not a true grass) | 25–50 | – | ||
Forb
|
||||||
6 | Forbs | 200–375 | ||||
tarragon | ARDR4 | Artemisia dracunculus | 25–100 | – | ||
Cuman ragweed | AMPS | Ambrosia psilostachya | 25–75 | – | ||
white sagebrush | ARLU | Artemisia ludoviciana | 25–75 | – | ||
sunflower | HELIA3 | Helianthus | 25–75 | – | ||
goldenrod | SOLID | Solidago | 25–75 | – | ||
prairie clover | DALEA | Dalea | 25–50 | – | ||
blacksamson echinacea | ECAN2 | Echinacea angustifolia | 25–50 | – | ||
western wallflower | ERAS2 | Erysimum asperum | 25–50 | – | ||
hairy false goldenaster | HEVI4 | Heterotheca villosa | 25–50 | – | ||
rush skeletonplant | LYJU | Lygodesmia juncea | 25–50 | – | ||
beardtongue | PENST | Penstemon | 25–50 | – | ||
Indian breadroot | PEDIO2 | Pediomelum | 25–50 | – | ||
upright prairie coneflower | RACO3 | Ratibida columnifera | 25–50 | – | ||
blazing star | LIATR | Liatris | 0–50 | – | ||
soft-hair marbleseed | ONBEB | Onosmodium bejariense var. bejariense | 0–50 | – | ||
milkvetch | ASTRA | Astragalus | 0–25 | – | ||
wavyleaf thistle | CIUN | Cirsium undulatum | 0–25 | – | ||
Nuttall's sensitive-briar | MINU6 | Mimosa nuttallii | 0–25 | – | ||
large Indian breadroot | PEES | Pediomelum esculentum | 0–25 | – | ||
longbract spiderwort | TRBR | Tradescantia bracteata | 0–25 | – | ||
Forb, perennial | 2FP | Forb, perennial | 0–25 | – | ||
Shrub/Vine
|
||||||
7 | Shrubs | 50–125 | ||||
leadplant | AMCA6 | Amorpha canescens | 25–100 | – | ||
western snowberry | SYOC | Symphoricarpos occidentalis | 25–75 | – | ||
prairie sagewort | ARFR4 | Artemisia frigida | 25–50 | – | ||
yellow sundrops | CASE12 | Calylophus serrulatus | 25–50 | – | ||
rose | ROSA5 | Rosa | 25–50 | – | ||
dwarf false indigo | AMNA | Amorpha nana | 0–25 | – | ||
spinystar | ESVIV | Escobaria vivipara var. vivipara | 0–25 | – | ||
Shrub (>.5m) | 2SHRUB | Shrub (>.5m) | 0–25 | – |
Interpretations
Animal community
Animal Community – Wildlife Interpretations
Landscape
The MLRA 53B landscape is characterized by nearly level to rolling till plains including kettle holes, kames, moraines, and small glacial lakes. The MLRA is located within the heart of the Prairie Pothole (Coteau) Region with temporary, seasonal, and semi-permanent wetlands throughout the MLRA. MLRA 53B has a continental climate with cold winters and hot summers, low humidity, light rainfall, and much sunshine. Extremes in temperature are common and characteristic of the MLRA. This area supports natural prairie vegetation characterized by western wheatgrass, needle and thread, green needlegrass, and big bluestem. Little bluestem is an important species on sloping and shallow soils. Prairie cordgrass, northern reedgrass, and sedges are important species on wet soils. Western snowberry, chokecherry, plum, stiff goldenrod, blacksamson echinacea, and prairie rose are commonly interspersed throughout the area.
Complex and intermingled ecological sites create diverse grass and shrub land habitats. Ecological sites are interspersed with moderate to high densities of depressional wetlands. MLRA 53B includes headwaters to tributaries of the Missouri River, including the Big Muddy River, White Earth River, Painted Woods Creek and Apple Creek in North Dakota and Spring Creek in South Dakota. Numerous unnamed creeks and drainageways drain into the James River in North and South Dakota which are in MLRA 55B. These habitats provide critical life-cycle components for many wildlife species including aquatic species.
Historic Communities/Conditions within MLRA 53B:
The northern mixed-grass prairie was a disturbance-driven ecosystem with fire, herbivory, and climate functioning as the primary ecological drivers (either singly or often in combination). The high density of wetland and associated native grassland historically supported an abundance of waterfowl and other marsh dependent birds. Many species of grassland birds, small mammals, insects, reptiles, amphibians, and herds of roaming American bison, elk, and pronghorn were historically among the inhabitants adapted to this semi-arid region. Roaming herbivores, as well as several small mammal and insect species, were the primary consumers linking the grassland resources to large predators (such as the wolf and mountain lion) and smaller carnivores (such as the coyote, bobcat, red fox, and raptors). Extirpated species include free-ranging American bison, elk, black and grizzly bear, gray wolf, and peregrine falcon (breeding). Extinct from the region is the Rocky Mountain locust.
Present Communities/Conditions within MLRA 53B:
Following European influence, domestic livestock grazing, elimination of fire, energy development, and other anthropogenic factors influenced plant community composition and abundance. Approximately 34% of the native grassland in MLRA 53B remains intact but grassland continues to be converted to annual cropping systems. Annual cropping, wetland drainage, wind energy, woody encroachment, and transportation corridors are the main contributors to habitat fragmentation, which reduces habitat quality for area-sensitive species. The fragmented landscape reduced or eliminated ecological drivers (fire) and introduced exotic plant species including smooth brome, crested wheatgrass, Kentucky bluegrass, and leafy spurge - further impacting plant and animal communities. Loss of fire allowed woody species to expand onto historically grassland sites. The loss of these ecological drivers greatly influenced the remaining native plant communities and wildlife species presence, moving towards a more fragmented but diverse landscape; but in many cases a more homogeneous grassland dominated by cool-season exotic grass species develops.
The high density of wetlands provides habitat for large numbers and species of waterfowl and waterbirds. MLRA 53B is a major contributor to the annual production of waterfowl and waterbirds within the Central Flyway. Many wildlife species found in MLRA 53B are those that have adapted to annual crop production. Some wildlife species in this area are white-tailed deer, coyote, red fox, American badger, raccoon, beaver, striped skunk, American mink, white-tailed jackrabbit, Eastern turkey, sharp-tailed grouse, waterfowl, and numerous species of grassland-nesting birds and pollinating insects. Numerous fish species inhabit the lakes and creeks within the MLRA.
National wildlife refuges, waterfowl production areas, and state wildlife management areas along with North Dakota Department of Trust Lands and South Dakota State School Lands provide herbaceous and woody cover for wildlife. In addition, the United States Army Corps of Engineers, United States Fish and Wildlife Service (USFWS), and the North Dakota Game and Fish Department (NDGFD) jointly manage one large manmade reservoir, Lake Audubon (16,612 acres), for waterfowl and fish production. The USFWS manages approximately 56,000 acres in National Wildlife Refuges and 59,000 acres of Waterfowl Production Areas including 5,526 acres of wilderness area within the Lostwood National Wildlife Refuge and 4,201 acres of wilderness area within the Chase Lake National Wildlife Refuge. The NDGFD manages approximately 47,000 acres of Wildlife Management Areas (WMA) and the South Dakota Game Fish and Parks manages approximately 12,000 acres of Game Production Areas in the southern end of the MLRA.
Wildlife species presence is often determined by site characteristics including grass and forb species, hydrology, aspect, and other associated ecological sites. Home ranges of most species are larger than one ecological site or are dependent upon more than one ecological site for annual life requisites. Ecological sites offer different habitat elements as the annual life requisites change. Habitat improvement and creation must be conducted within the mobility limits of a known population for the species.
Insects play an important role providing ecological services for plant community development. Insects that are scavengers or aid in decomposition provide the food chain baseline sustaining the carnivorous insects feeding upon them. Many insects provide the ecological services necessary for pollination, keeping plant communities healthy and productive. Insects provide a protein food source for numerous species including grassland-nesting birds and their young.
Species of Concern within MLRA 53B:
The following is a list of species considered “species of conservation priority” in the North Dakota State Wildlife Action Plan (2015) and South Dakota State Wildlife Action Plan (2014); and species listed as “threatened, endangered, or petitioned” under the Endangered Species Act within MLRA 53B at the time this section was developed:
Invertebrates: Dakota skipper, Dakota stonefly, Iowa skipper, monarch butterfly, northern sandy tiger beetle, Ottoe skipper, regal fritillary, yellow-banded bumble bee, and western bumble bee.
Birds: American avocet, American bittern, American kestrel, American white pelican, Baird’s sparrow, bald eagle, black-billed cuckoo, black tern, bobolink, burrowing owl, canvasback, chestnut-collared longspur, Dickcissel, ferruginous hawk, Franklin’s gull, grasshopper sparrow, greater prairie-chicken, horned grebe, horned lark, lark bunting, LeConte’s sparrow, lesser scaup, loggerhead shrike, long-billed curlew, marbled godwit, Nelson’s sparrow, northern goshawk, northern harrier, northern pintail, peregrine falcon (migration), piping plover (migration), red knot (migration), sharp-tailed grouse, short-eared owl, Sprague’s pipet, Swainson’s hawk, trumpeter swan, upland sandpiper, western meadowlark, willet, Wilson’s phalarope, whooping crane (migration), and yellow rail.
Mammals: Arctic shrew, big and little brown bats, Franklin’s ground squirrel, plains pocket mouse, Richardson’s ground squirrel, silver-haired bat, and swift fox (historical range).
Amphibians and Reptiles: Canadian toad, false map turtle, plains hognose snake, smooth green snake, and snapping turtle.
Fish and Mussels: Blacknose shiner, blue sucker, burbot, fathead chub, fragile papershell, northern pearl dace, northern redbelly dace, pink papershell, sicklefin chub, sturgeon chub, and yellow sandshell.
Grassland Management for Wildlife in the MLRA 53B
Management activities within State and Transition models follow various community phase pathways. These management activities will impact wildlife, both positive and negative, but are essential for maintenance of healthy grassland ecosystems. Community phase, transitional, and restoration pathways are keys to long-term management within each State and between States. Timing, intensity, and frequency of these inputs can have dramatic positive or negative effects on local wildlife species. Ranchers and other land managers must always consider the long-term beneficial management effects of grassland and woodland resources in comparison to typically short-term negative effects to the habitats of individual species.
Ecological sites occur as intermingled complexes on the landscape with gradual or sometimes abrupt transitions. Rarely do ecological sites exist in large enough acreage to manage independently for wildlife. A management regime for one ecological site may negatively impact an adjacent site (e.g., alteration of a grazing regime within a Loamy Overflow ecological site to encourage tall warm-season grass development) may encourage exotic cool-season grasses to increase or dominate adjacent ecological sites.
Life requisites and habitat deficiencies are determined for targeted species, species guilds, or by land use. Deficiencies need to be addressed along community phase, transitional, and restoration pathways as presented in specific state-and-transition models. Ecological sites should be managed and restored within the site’s capabilities to provide sustainable habitat for targeted species or species guilds. Habitat fragmentation caused by the conversion to annual cropping, tree plantings, rural housing, and fragmentation due to transportation and electrical transmission corridors need to be considered when managing for target species.
With populations of many grassland-nesting birds in decline, it is important to maintain these ecological sites in a 1.0 Reference State (if found) or the 2.0 Native/Invaded State. Plant communities optimal for a guild of grassland species serve as a population source where the birth rate exceeds mortality. Species may use marginal plant communities; however, these sites may function as a population sink where mortality exceeds the birth rate.
Understanding preferred vegetative stature and sensitivity to woody encroachment is necessary to manage for the specific grassland species. Various grass heights may be used for breeding, nesting, or foraging habitat. While most species use varying heights, many have a preferred vegetative stature height. The following chart provides preferred vegetative stature heights and sensitivity to woody vegetation encroachment.
The chart can be viewed at the following hyperlink: https://efotg.sc.egov.usda.gov/references/public/ND/53B_Sands_Narrative_FINAL_Ref_FSG.pdf
Sands Wildlife Habitat Interpretation:
Sands ecological sites are very deep, coarse textured (non-gravelly), well to excessively drained soils. They are usually found on eolian sand sheets, sandy lake plains, and outwash plains but can also occur on till plains mantled with eolian sands. No significant water table or surface run-on influences vegetation production on this site. These soils are susceptible to wind erosion. Associated ecological sites include Sandy, Choppy Sands, Loamy, Thin Loamy, Sandy Claypan, and Shallow Sandy. This complex of ecological sites provides habitat for many edge-sensitive, grassland bird species preferring medium- to tall-statured vegetation.
This site is very similar to the Sandy ecological site in plant community structure and wildlife interpretations. Sands ecological sites may be found in five plant community states (1.0 Reference State, 2.0 Native/Invaded State, 3.0 Invaded State, 4.0 Shrub State, and 5.0 Go-Back State) within a local landscape. Multiple plant community phases exist within States 1.0 and 2.0. Today, these states occur primarily in response to drought, fire, grazing, non-use, and other anthropogenic disturbances.
Because there is no known restoration pathway from State 2.0 to State 1.0, it is important to intensively manage using tools in State 1.0 and State 2.0 Community Phase Pathways to prevent further plant community degradation along the T2A Transitional Pathway to 3.0 Invaded State. Native wildlife generally benefits from the heterogeneous grasslands found in Community Phase States 1.0 and 2.0 that include diverse grass and forb species of varying stature and density. As plant communities degrade within State 2.0, Kentucky bluegrass, smooth brome, and/or crested wheatgrass increase while native forbs are reduced. When Kentucky bluegrass exceeds 30%, the site transitions to 3.0 Invaded State. This transition results in reduced stature and increased plant community homogeneity. When adjacent and/or intermingled ecological sites undergo the same transition, the result can be an expansive, homogenous landscape.
Success along Restoration Pathways R3A from State 3.0 to State 2.0 is very difficult and is dependent upon presence of a remnant native grass population. This concept also applies to wildlife, as the target species must either be present on adjacent State 1.0 or State 2.0 plant communities or on other ecological sites within the mobility limits of the species. Species with limited mobility, such as Dakota skippers, must exist near the plant community to utilize restored sites. Mobile species such as grassland-nesting birds can easily locate isolated, restored plant communities.
Plant Community Phase 3.1 shows a dramatic increase in homogeneity of exotic cool-season grasses and further reduction in native forbs. Reduced forb diversity limits insect populations, negatively affecting foraging opportunities for grassland-nesting birds. Increased exotic grass litter can limit access to bare ground by nesting insects and can limit mobility by small chicks. A homogenous grassland landscape does not provide quality escape or winter cover. As a result, many species are not able to meet life requisites, especially non-migrating bird species.
Management along community phase, transition, or restoration pathways should focus upon attainable changes. Short- and long-term monetary costs must be evaluated against short- and long- term ecological services in creating and maintaining habitat of sufficient quality to support a sustainable population density.
1.0 Reference State
Community Phase 1.1 Needlegrasses-Prairie Sandreed-Bluestems: This plant community offers quality vegetative cover for wildlife; every effort should be made to maintain this ecological site within this community phase. This phase retains high functionality through continued grassland management including prescribed grazing (with adequate recovery period) as well as prescribed fire. Predominance of grass species in this community favors grazers and mixed-feeders (animals selecting grasses as well as forbs and shrubs). The structural diversity provides habitat for a wide array of migratory and resident birds.
Invertebrates: Insects play a role in maintaining the forb community and provide a forage base for grassland birds, reptiles, and rodents. Ecological services, historically provided by bison, are simulated by domestic livestock. These services include putting plant material and dung in contact with mineral soil to be used by lower trophic level consumers (such as invertebrate decomposers, scavengers, shredders, predators, herbivores, dung beetles, and fungal-feeders). Prescribed grazing with adequate recovery periods (as well as prescribed fire) to maintain Community Phase 1.1 phase will have long term positive effects on ground dwelling insects.
Dakota skippers may use this site due to availability of host plants (such as bluestems, needlegrasses, and upright prairie coneflower). Violet species are not common on this site, not supporting the needed habitat for the regal fritillary. Monarch butterfly may use flowering forbs; however, few milkweed species are found on these sites to support caterpillar food. Bumblebees and other native bees utilize forbs as a nectar source; bare ground and nesting sites are available due to the co-dominance of bunch grasses.
Birds: This plant community provides quality nesting, foraging, and escape habitats favored by mid- to tall grass-nesting birds. Prescribed fire maintains a grass-dominated plant community providing habitat for bird species sensitive to woody vegetation. In years with reduced precipitation or drought, nesting recruitment may be compromised. This plant community does not provide suitable lek sites for sharp-tailed grouse due to the tall-statured vegetation. However, it does provide nesting, brood- rearing, escape, and winter habitat. This site provides good hunting opportunities for grassland raptors.
Mammals: The diversity of grasses and forbs provide high nutrition levels for small and large herbivores including voles, mice, jackrabbits, and white-tailed deer. Tall- to mid-statured vegetation provides suitable food and thermal, protective, and escape cover for small herbivores.
Amphibians and Reptiles: This ecological site is not typically found adjacent to or near Wet Meadow or Shallow Marsh ecological sites. Habitat for the northern leopard frog and Canadian toad is dependent upon short distance to these ecological sites. This site provides habitat for the plains hog- nosed snake, preferring sandy sites.
Fish and Mussels: This ecological site is not typically adjacent to streams, rivers, or water bodies. This site receives limited run-on hydrology from adjacent ecological sites and provides limited hydrology to adjacent ecological sites. Management on Sands sites, in conjunction with neighboring run-on sites, will have an indirect effect on aquatic species in streams and/or tributaries receiving water from Sands and adjacent sites. Optimum hydrological function and nutrient cycling limit potential for sediment yield and nutrient loading to the adjacent aquatic ecosystems from Community Phase 1.1.
Community Phase 1.2 Sedges/Blue Grama-Needle and Thread-Prairie Sandreed: Multiyear drought (with or without heavy long-term grazing) favors a decrease of tall warm-season grasses and increases in needle and thread, short warm-season grasses, and sedges.
Invertebrates: Provides similar life requisites as Community Phase 1.1. The forb component remains similar with increases in warm season sod-forming grasses and sedges. Long-term drought may keep forbs from producing flowers or result in fewer and/or smaller flowers per plant. Increase in sod forming grasses decreases the availability of bare ground for ground nesting insects.
Birds: Provides similar life requisites as Community Phase 1.1. However, the reduction in big bluestem and increases in sedges and short warm-season grasses moves this plant community to short- to mid-stature favoring grassland-nesting birds species preferring short- to mid-statured vegetation. Winter cover for resident bird species, such as sharp-tailed grouse, is somewhat compromised due to increases in sedges and cool-season bunch grasses.
Mammals: Provides similar life requisites as Community Phase 1.1. A shift to short- to mid-statured vegetation reduces cover for large herbivores but provides suitable food, thermal, protective, and escape cover for small herbivores.
Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1. Fish and Mussels: Provides similar life requisites as Community Phase 1.1.
2.0 Native/Invaded State
Community Phase 2.1 Needlegrasses-Prairie Sandreed-Bluestems: This plant community develops through Transition Pathway T1A due to changes in management (reduction in fire frequency) and the presence of exotic, cool-season grasses. The threshold between States 1.0 and 2.0 is crossed when exotic grasses (usually Kentucky bluegrass, smooth brome, and/or crested wheatgrass) or exotic forbs become established. This plant community phase has a very similar appearance and function to the Plant Community 1.1 except that it has a minor amount of cool-season exotic grasses or forbs. This phase functions at a high level for native wildlife; therefore, managers should consider management within the State 2.0 Community Phase Pathways to avoid transitioning to State 3.0.
Invertebrates: Provides similar life requisites as Community Phase 1.1. Birds: Provides similar life requisites as Community Phase 1.1.
Mammals: Provides similar life requisites as Community Phase 1.1.
Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.
Fish and Mussels: Provides similar life requisites as Community Phase 1.1.
Community Phase 2.2 Sedges/Blue Grama-Needle and Thread-Prairie Sandreed/Forbs: Multi-year drought, with or without heavy grazing, (via Community Phase Pathway 2.1A) results in increases in needle and thread, blue grama, and sedges with corresponding decreases in prairie sandreed and bluestems. The forb component is still diverse.
This community phase is often found in a mosaic in the pasture in an overgrazed/ undergrazed pattern typical of properly stocked pastures grazed season-long. Some areas will be impacted by heavy use while other areas will have a build-up of litter and a high amount of plant decadence. This mosaic of grazed and ungrazed areas provides a short to tall vegetative stature.
Invertebrates: Provides similar life requisites as Community Phase 1.2. Invertebrates will respond to the amount of over-utilized vs. under-utilized areas and the resultant vegetative stature. Reduced litter amounts on the over-utilized area increases bare ground favoring ground nesting insects. Under-utilized areas will have a decrease in bare ground for ground-nesting insects but may have more pollen and nectar producing forbs. An increase in wind-pollinated shrubs, such as field sagewort and prairie sagewort, may reduce pollen and nectar availability. Prairie sagewort provides nesting sites for native bees and larval food butterfly species.
Birds: Provides similar life requisites as Community Phase 1.2. Dependent on patch sizes, mid- to tall-statured vegetation may be available to grassland nesting birds.
Mammals: Provides similar life requisites as Community Phase 1.2. Overall plant stature may be reduced in this phase, reducing cover for large ungulates. Litter depth and residual vegetation provides thermal, protective, escape, and winter cover for small mammals.
Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1. Fish and Mussels: Provides similar life requisites as Community Phase 1.1.
Community Phase 2.3 Needle and Thread/Forbs/Exotic Cool-Season Grasses: This plant community develops through extended periods of non-use or very light grazing, and no fire (via Community Phase 2.1B and 2.2B). Needle and thread and exotic grasses become the dominant grasses with increases in Kentucky bluegrass, smooth brome and/or crested wheatgrass. The plant community is considered an “at risk” plant community. Every effort should be made by managers to avoid implementing a grazing system that may favor Kentucky bluegrass via Transitional Pathways T2A. Continuous, heavy season-long grazing or complete rest could cause this plant community to reach the 30 percent threshold of Kentucky bluegrass crossing over to State 3.0 with little chance of restoration back to State 2.0. Forbs including goldenrod, white heath aster, and white sagebrush are common forbs with an increase in western snowberry and rose. Implementation of a prescribed grazing system with adequate recovery period (via Community Pathway 2.3A) can shift the competitive edge to mid-statured warm-season grasses with a shift back to Community Phase 2.1.
Invertebrates: The reduction of native forbs and increase in sod-forming grasses and mulch limit foraging and ground nesting sites for all pollinators. Dominated by late season bloom period species of forbs, overall pollen and nectar resources become limited. Dependent upon the density of western snowberry and rose, this plant community can provide mid-season pollen and nectar sources.
Birds: An increase in exotic cool-season grasses and needle and thread combines with a corresponding reduction in tall warm-season grasses (such as big bluestem and prairie sandreed). This shift to short- to mid-grass statured vegetation favors grassland nesting birds preferring short to medium vegetative stature. Species that prefer mid-grass stature generally will be successful with normal to above normal precipitation and a change in management along the 2.3A Community Phase Pathway. In years with reduced precipitation or heavy grazing during the nesting season, use by mid-grass nesting species may be compromised. This plant community provides areas suitable for sharp-tailed grouse lek site development. Limited stature and diverse prey populations provide good hunting opportunities for grassland raptors.
Mammals: Increased litter provides habitat for rodents and other small mammals, while the shift to shorter statured vegetation reduces thermal, protective, and escape cover for larger mammals. The loss of diversity of grasses and forbs reduces nutrition levels for small and large herbivores.
Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1.
Fish and Mussels: Provides similar life requisites as Community Phase 1.1.
3.0 Invaded State
Community Phase 3.1 Exotic Cool-Season Grasses/Forbs: Extended periods of non-use or very light grazing, and no fire, (via Transition Pathway T2A) causes this plant community to reach the 30 percent threshold of Kentucky bluegrass crossing over to State 3.0. This plant community can also develop under other management, such as season-long heavy grazing. Plant litter accumulation favors shade tolerant exotic grasses and western snowberry. Non-use will result in extensive areas of Kentucky bluegrass, smooth brome and/or crested wheatgrass litter accumulation and have the effect of residual cover going prostrate or “laying down”. Forb number and diversity is low with western snowberry becoming common on the site. Pathway R3A will require intensive management practices, including prescribed fire, grazing, and possible mechanical treatment of western snowberry along with extensive time to bring forb and grass diversity back to State 2.0. Success along this pathway is dependent upon the length of time this community phase has been in place and the amount and vigor of any native cool- and warm-season grasses persisting on the site.
Invertebrates: The invasion of Kentucky bluegrass or other exotic cool-season grasses reduces or eliminates the habitat for all pollinating species of concern within MLRA 53B. Season-long pollen and nectar availability becomes limited on this site. The woody shrub component (western snowberry) will provide an early- to mid- season bloom period. Non-use will increase litter, reducing sites for ground nesting pollinators. Heavy grazing will reduce litter amounts and provide some bare ground for ground nesting insects. Overall, pollinator plant diversity is low, limiting season-long nectar and pollen production.
Birds: As vegetative stature becomes less diverse with an exotic cool-season monoculture (Kentucky bluegrass, smooth brome and/or crested wheatgrass), non-use, very light use, and no fire results in extensive areas of grass litter accumulation. In addition, residual cover will have the effect of going prostrate or “laying down” - negatively impacting nesting opportunities. Grassland nesting bird species that favor short- to mid-statured vegetation may use this plant community. Dependent upon use and stature of residual vegetation, this plant community can provide suitable areas for sharp-tailed grouse lek sites with limited to no cover for other life requisites. This site provides limited hunting opportunities for grassland raptors.
Mammals: Excessive litter build up and the tendency for Kentucky bluegrass, brome and/or crested wheatgrass litter accumulation will have the effect of residual cover going prostrate or “laying down”. This provides quality thermal, protective, and escape cover for small herbivores, but limited life requisites for large mammals. If the plant community is managed with heavy, season-long grazing, residual cover is removed - providing limited food and cover for most mammals except ground dwelling mammals (ground squirrels).
Amphibians and Reptiles: Provides similar life requisites as Community Phase 1.1; however, excessive grazing will negatively impact the plains hog-nosed snake.
Fish and Mussels: Provides similar life requisites as Community Phase 1.1.
4.0 Shrub State
Community Phase 4.1 Shrubs/Forbs/Exotic Cool-Season Grasses: Extended periods of non-use and no fire, enhanced by above normal precipitation (via Transitional Pathways T3A) causes this plant community to be dominated by shrubs. Plant litter accumulation favors shade tolerant grasses and western snowberry. Forb number and diversity is low with western snowberry and other flowering shrubs beginning to dominate or dominating the site. Pathway R3A will require intensive management practices and extensive time to bring forb and grass diversity back to State 2.0.
Invertebrates: The invasion of western snowberry reduces or eliminates the habitat for all pollinating species of concern within MLRA 53B. Season-long pollen and nectar availability becomes limited on this site. The woody shrub component (western snowberry) provides an early season bloom period. Non-use will increase litter, reducing sites for ground nesting pollinators. Overall, pollinator plant diversity is low, limiting season-long nectar and pollen production. Shrubs, mainly western snowberry, provide early-season pollen sources. Season-long pollen and nectar is typically not available. This site no longer provides life requisites for butterfly and bee species. Overall, this community phase will not favor pollinating species in either management scenario (heavy use or no use).
Birds: This site may still provide habitat needs for many grassland nesting birds, dependent upon the density and height the shrubs. Many grassland nesting birds are tolerant or positively correlated with western snowberry. Northern harrier, lark bunting, and Dickcissel use western snowberry for nesting sites. This plant community does not provide suitable areas for sharp-tailed grouse or greater prairie chicken lek sites but does provide brood rearing and escape habitat. Winter cover is mainly provided by the western snowberry. This site provides hunting opportunities for grassland raptors. Management along Restoration Pathway R3A will require intensive mechanical and management practices and extensive time to bring forb and grass diversity back to this plant community phase.
Mammals: Western snowberry will provide increased year-round cover and browse for white-tailed deer. The short stature and density of western snowberry will not provide habitat for porcupines or other mammals that prefer woody habitat.
Amphibians and Reptiles: The increase in western snowberry may no longer provide life requisites for amphibians or reptiles.
Fish and Mussels: Provides similar life requisites as Community Phase 1.1.
5.0 Go-Back State
Community Phase 5.1 Annual/Pioneer Perennial/Exotics: These plant communities are the result of severe soil disturbance (such as cropping, recreational activity, or concentrated livestock activity for a prolonged period). Following cessation of disturbances, the resulting plant community is dominated by early pioneer annual and perennial plant species. Plant species composition and production are highly variable. Weedy plants can provide pollinator habitat along with spring and summer cover for many mammals and birds, and their young. Dense weed cover can keep soils moist, increasing the presence of insects. Milkweed can be an early pioneering pollinator species and host plant for monarch butterflies.
Tall stature provided by some annual weeds offers thermal cover and seeds throughout winter for deer, small mammals, and over-wintering birds. The response by wildlife species will be dependent upon plant community composition, vegetative stature, patch size, and management activities (such as prescribed grazing, burning, inter-seeding, haying, or noxious weed control).
Successful restoration of native species along Transition Pathway R5A can result in a native grass and forb community in Native/Invaded State 2.0. Over time, with no management, the exotic cool-season perennial grasses (Kentucky bluegrass, smooth brome, and/or crested wheatgrass) generally become established and dominate the community. Failed native grass planting, via Transition Pathway R5B, can result in an invaded plant community Invaded State 3.0.
Animal Community – Grazing Interpretations
This site is well adapted to managed grazing by domestic livestock. The predominance of herbaceous plants across all plant community phases best lends these sites to grazing by cattle, but other domestic grazers with differing diet preferences may also be a consideration depending upon management objectives. Often, the current plant community does not entirely match any particular plant community (as described in the ecological site description). Because of this, a resource inventory is necessary to document plant composition and production. Proper interpretation of this inventory data will permit the establishment of a safe, initial stocking rate for the type and class of animals and level of grazing management. More accurate stocking rate estimates should eventually be calculated using actual stocking rate information and monitoring data.
NRCS defines prescribed grazing as “managing the harvest of vegetation with grazing and/or browsing animals with the intent to achieve specific ecological, economic, and management objectives”. As used in this site description, the term ‘prescribed grazing’ is intended to include multiple grazing management systems (e.g., rotational grazing, twice-over grazing, conservation grazing, targeted grazing, etc.) provided that, whatever management system is implemented, it meets the intent of prescribed grazing definition.
The basic grazing prescription addresses balancing forage demand (quality and quantity) with available forage, varying grazing and deferment periods from year-to-year, matching recovery/deferment periods to growing conditions when pastures are grazed more than once in a growing season, implementation of a contingency (e.g., drought) plan, and a monitoring plan. When the management goal is to facilitate change from one plant community phase or state to another, then the prescription needs to be designed to shift the competitive advantage to favor the native grass and forb species.
Grazing levels are noted within the plant community narratives and pathways in reference to grazing management. “Degree of utilization” is defined as the proportion of the current years forage production that is consumed and/or destroyed by grazing animals (may refer to a single plant species or a portion or all the vegetation). “Grazing utilization” is classified as slight, moderate, full, close, and severe (see the following table for description of each grazing use category). The following utilization levels are also described in the Ranchers Guide to Grassland Management IV. Utilization levels are determined by using the landscape appearance method as outlined in the Interagency Technical Reference “Utilization Studies and Residual Measurements” 1734-3.
Utilization Level % Use Description
Slight (Light) 0-20 Appears practically undisturbed when viewed obliquely. Only choice areas and forage utilized.
Moderate 20-40 Almost all of accessible range shows grazing. Little or no use of poor forage. Little evidence of trailing to grazing.
Full 40-60 All fully accessible areas are grazed. The major sites have key forage species properly utilized (about half taken, half left). Points of concentration with overuse limited to 5 to 10 percent of accessible area.
Close (Heavy) 60-80 All accessible range plainly shows use and major sections closely cropped. Livestock forced to use less desirable forage, considering seasonal preference.
Severe > 80 Key forage species completely used. Low-value forages are dominant.
Hydrological functions
Available water is the principal factor limiting herbage production on this site. The site is dominated by soils in hydrologic group A, but some soils in group B are included. Infiltration varies from moderately rapid to very rapid; runoff potential varies from negligible to medium for this site depending on soil hydrologic group, surface texture, slope percent, and ground cover. In many cases, areas with greater than 75% ground cover have the greatest potential for high infiltration and lower runoff. An exception would be where short-grasses form a dense sod and dominate the site. Areas where ground cover is less than 50% have the greatest potential to have reduced infiltration and higher runoff (refer to Section 4, NRCS National Engineering Handbook for runoff quantities and hydrologic curves).
Recreational uses
National wildlife refuges (NWR) (56,476 acres), waterfowl production areas (WPAs) (183,465 acres), state wildlife management areas (WMAs) (59,476 acres), Department of Trust Lands/State School Lands (284,695 acres), and the United State Army Corps of Engineers (65,619 acres) provide hunting, bird watching, hiking, and other outdoor recreation opportunities. Audubon WMA, North Dakota, is the largest state managed, wildlife area covering 6,716 acres. The largest refuges managed by the United States Fish and Wildlife service are Audubon NWR (14,735 acres); Lostwood NWR (26,747 acres with 5,526 acres designated as wilderness area); Chase Lake NWR (4,385 acres, of which 4,201 acres were designated a wilderness area); and Long Lake NWR (22,300 acres). United States Bureau of Reclamation manages approximately 2,215 acres for fish and wildlife habitat. The Bureau of Land Management manages 6,042 acres in small, scattered tracts across the MLRA.
Bird watching: Prairie-dependent and migratory birds provide quality birding opportunities within this MLRA. NWRs, WPAs, and WMAs provide essential habitat for prairie-dependent bird species (such as Sprague's pipit and Baird's sparrow) along with some of the larger, showy members of the upland prairie including marbled godwit, upland sandpipes, and willet. MLRA 53B is in the heart of spring and fall bird migratory routes.
Chase Lake NWR is home to one of the largest breeding colonies of American white pelicans and has been identified by the American Bird Conservancy as one of the top 100 Globally Important Bird Areas in the United States. Lostwood NWR is designated a Globally Important Bird Area by the American Birding Conservancy and the Audubon Society. Long Lake NWR consists of a 15,000-acre saline basin that is 18 miles long and is appropriately named "Long Lake". The refuge was listed as a top 10 birding site by Wild Bird Magazine. It was also recently designated as both a Globally Important Bird Area and a Western Hemisphere Shorebird Reserve Network (WHSRN) site because of its importance as both a breeding and migratory stopover site for more than 20,000 shorebirds, annually.
Hunting/Fishing: MLRA 53B is a fall destination for thousands of waterfowl hunters. The density of prairie pothole wetlands, WPAs, state owned trust lands, and WMAs provide quality opportunities for waterfowl and upland game bird hunting. This MLRA also provides quality white-tailed deer hunting opportunities along with moose hunting opportunities.
Quality fishing (summer and winter fishing) opportunities are available in the MLRA. The North Dakota Game and Fish Department and the South Dakota Game Fish and Parks manages approximately 125 fishing lakes within the MLRA. Available species include yellow perch, walleye, northern pike, muskellunge, crappie, bluegill, and small mouth bass. Lake Audubon is the largest fishing lake within the MLRA. A portion of Lake Audubon, within the National Wildlife refuge system, provides ice fishing access only; there is no open-water fishing on the refuge portion of Lake Audubon.
Camping: The Bureau of Reclamation manages the Brekken-Holmes Recreation Area in the Turtle Lake area. The recreation area consists of approximately 675 water surface acres, 620 land acres, and 10 miles of shoreline. The Garrison Conservancy District provides primitive camping along the chain of lakes connected by the McClusky Canal diverting water eastward into central North Dakota. Nine state parks are located within the MLRA totaling 1,340 acres. Fort Stevenson State Park is the only State Park in the MLRA that provides boating access to Lake Sakakawea. Other numerous camping (primitive and improved) sites are available in numerous city and county parks.
Hiking: The North Country Trail dissects the MLRA east to west following the 76-mile section of the McClusky Canal; in addition is has 12 miles of off-road trails through the Audubon National Wildlife Refuge, a road walk from Coleharbor to Riverdale and across Garrison Dam, and a short, off-road segment leading to the Western Terminus within Lake Sakakawea State Park. Hiking is also permitted on other state and federally owned lands. In addition, the Lostwood NWR and the Audubon NWR have 7 and 8 miles, respectively, of self-guided auto tours.
Wood products
There are no appreciable wood products on this site.
Other products
Seed harvest of native plant species can provide additional income on this site.
Other information
Site Development and Testing Plan
• Further investigation is needed on similar soils with moderately steep and steep slopes 15-35%. These soils occur on stable landforms (not dunes) and are currently included in the Choppy Sands ecological site. Many of them occur on eolian sand sheets over glacial till on moraines. Investigation and documentation of the plant communities and forage production on these soils is recommended.
• Further investigation is needed on the Schaller and Yecross soils included in this site. Areas of these soils have more gravel than is typical for the Sands ecological site. The range of gravel content in Schaller is 0 to 16 percent in the A and Bk horizons; the C horizon (which may be as shallow as 16 inches) has a range of 5 to 48 percent gravel and up to 5 percent cobbles. Yecross has >15 percent gravel at a depth 8 inches. The impact of the gravel on droughtiness and the plant community should be evaluated to determine if these soils should be assigned to other sites (Shallow Gravel or Very Shallow).
• Further evaluation and refinement of the State-and-Transition model is needed to identify disturbance driven dynamics. Additional states and/or phases may be required to address grazing response.
• Further documentation may be needed for plant communities in all states. Plant data has been collected in previous range-site investigations, including clipping data; however, this data needs review. If geo-referenced sites meeting Tier 3 standards for either vegetative or soil data are not available, representative sites will be selected for further investigation.
• Site concepts will be refined as the above noted investigations are completed.
• The long-term goal is to complete an approved, correlated Ecological Site Description as defined by the National Ecological Site Handbook.
• NASIS revisions needed:
o All but one component of Seroco and all Blanchard components (all having slopes <15%) need to be relinked from 53B Choppy Sands to 53B Sands. One Seroco component with slope >15% needs to be relinked to 54 Choppy Sands.
o Three components (2 major) of Lihen exceed 15% slopes; these need to be relinked to Choppy Sands which MLRA 53B does not have. The component in Livona-Lihen-Flasher complex, 9 to 35 percent slopes occurs in Burleigh County and is associated with residuum; it should be linked to 54 Choppy Sands. The other components occur in Logan and Sheridan counties and are associated with eolian capped glacial till; these two should be linked to 55B Choppy Sands.
o Five components (2 major) of Telfer exceed 15% slopes; these need to be relinked to Choppy Sands which MLRA 53B does not have. The component in Lihen-Zahl complex, 9 to 25 percent slopes occurs in McLean County and is associated with eolian capped glacial till; it should be linked to 55B Choppy Sands. The other components should be linked to 54 Choppy Sands.
o Eighteen components (9 major) of Lihen are currently linked to Sandy but need to be relinked to Sands. The fine sandy loam surface soil of these components is <10 inches thick.
o Two Hecla (low precipitation) components occur primarily in Kidder and Stutsman counties and have the same water tables depths as populated for 55B Hecla components. These low precipitation Hecla components should be relinked from 53B Sands to 55B Subirrigated Sands.
This ESD is the best available knowledge. The site concept and species composition table have been used in the field and tested for more than five years. It is expected that as additional information becomes available revisions may be required.
Supporting information
Inventory data references
Information presented here has been derived from NRCS and other federal/state agency clipping and inventory data. Also, field knowledge of range-trained personnel was used. All descriptions were peer reviewed and/or field-tested by various private, state and federal agency specialists.
Other references
Bakker, K.K. 2003. The effect of woody vegetation on grassland nesting birds: an annotated bibliography. The Proceedings of the South Dakota Academy of Science 82:119-141.
Barker, W.T. and W. C. Whitman. 1988. Vegetation of the Northern Great Plains. Rangelands 10(6): 266-272. Bluemle. J.P. 2016. North Dakota’s geologic legacy. North Dakota State University Press. 382 pages.
Briske, D.D. (editor). 2017. Rangeland systems – processes, management, and challenges. Springer Series on Environmental Management. 661 pages.
Burgess, R.L. 1965. A study of plant succession in the sandhills of southeastern North Dakota. Proceedings ND Academy of Science 19:62-80
DeKeyser, E.S., G. Clambey, K. Krabbenhoft, and J. Ostendorf. 2009. Are changes in species composition on central North Dakota rangelands due to non-use management? Rangelands 31:16-19
Dix, R.L. and F.E. Smeins. 1967. The prairie, meadow, and marsh vegetation of Nelson County, North Dakota. Canadian Journal of Botany 45:21-57.
Dornbusch, M.J., R.F. Limb, and C.K. Gasch. 2018. Facilitation of an exotic grass through nitrogen enrichment by an exotic legume. Rangeland Ecology & Management 71:691-694.
Dyke, S.R., S.K. Johnson, and P.T. Isakson. 2015. North Dakota state wildlife action plan. North Dakota Game and Fish Department, Bismarck, ND. 468 pages.
Ehrenfeld, Joan G. 2002. Effects of exotic plant invasions on soil nutrient cycling processes. Ecosystems 6:503-523.
Ereth, C., J. Hendrickson, D. Kirby, E. DeKeyser, K. Sedevic, and M. West. Controlling Kentucky bluegrass with herbicide and burning is influenced by invasion level. Invasive Plant Science and Management 10: 80-89.
Ewing, J. 1924. Plant succession on the brush prairie in northwestern Minnesota. Journal of Ecology 12:228- 266.
Gilgert, W. and S. Zack. 2010. Integrating multiple ecosystem services into ecological site descriptions. Rangelands: 32:49-54.
Grant, T.A. and R.K. Murphy. 2005. Changes on woodland cover on prairie refuges in North Dakota, USA. Natural Areas Journal 25:359-368.
Heitschmidt, R. K., K. D. Klement, and M. R. Haferkamp. 2005. Interactive effects of drought and grazing on northern great plains rangelands. Rangeland Ecology and Management 58:11-19.
Hendrickson, J.R., P. S. Johnson, M. A. Liebig, K. K. Sedivec, and G. A. Halvorson. 2016. Use of ecological sites in managing wildlife and livestock: an example with prairie dogs. Rangelands
Hendrickson, J.R., S.L. Kronberg, and E.J. Scholljegerdes. 2020. Can targeted grazing reduce abundance of invasive perennial grass (Kentucky Bluegrass) on native mixed-grass prairie? Rangeland Ecology and Management, 73:547-551.
Higgins, K.F. 1984. Lightning fires in grasslands in North Dakota and in pine-savanna lands in nearby South Dakota and Montana. J. Range Manage. 37:100-103.
Higgins, K.F. 1986. Interpretation and compendium of historical fire accounts in the Northern Great Plains. United States Department of Interior, Fish and Wildlife Service. Resource Publication 161. 39 pages.
Higgins, K.F., A.D. Kruse, and J.L. Piehl. 1989. Effects of fire in the Northern Great Plains. U.S. Fish and Wildlife Service and Cooperative Extension Service South, Dakota State University. Extension Circular 761. 48 pages.
High Plains Regional Climate Center, University of Nebraska, 830728 Chase Hall, Lincoln, NE 68583-0728. (http://hprcc.unl.edu)
Johnson, Sandra. 2015. Reptiles and amphibians of North Dakota. North Dakota Game and Fish Department. 64 pages.
Jordan, N. R., D.L. Larson, and S.C. Huerd. 2008. Soil modification by invasive plants: effects on native and invasive species of mixed-grass prairies. Biological Invasions 10:177-190.
Lura, C.L., W.T. Barker, and P.E. Nyren.1988. Range plant communities of the Central Grasslands Research Station in south central North Dakota. Prairie Naturalist 20:177-192.
Mader, E., M. Shepherd, M. Vaughan, and S.H. Black. 2011. Attracting native pollinators: protecting North America's bees and butterflies. Accessed at https://xerces.org, May 1, 2017.
North Dakota Division of Tourism, Accessed on February 25, 2019. Available at https://www.ndtourism.com/sports-recreation
North Dakota Parks and Recreation Department, Accessed on February 25, 2019. Available at http://www.parkrec.nd.gov/recreationareas/recreationareas.html
Palit, R., G. and E.S. DeKeyser. 2022. Impacts and drivers of smooth brome (Bromus inermis Leyes.) invasion in native ecosystems. Plants: 10,3390. http://https://www.mdpi.com/2223-7747/11/10/1340
Palit, R., G. Gramig, and E.S. DeKeyser. 2021. Kentucky bluegrass invasion in the Northern Great Plains and prospective management approaches to mitigate its spread. Plants: 10,817. https://doi.org/10.3390/plants10040817
Printz, J.L. and J.R. Hendrickson. 2015. Impacts of Kentucky bluegrass Invasion (Poa pratensis) on ecological processes in the Northern Great Plains. Rangelands 37(6):226-232.
Redmann, Robert E. 1975. Production ecology of grassland plant communities in western North Dakota. Ecological Monographs 45:83-106.
Reeves, J.L., J.D. Derner, M.A. Sanderson, J.R. Hendrickson, S.L. Kronberg, M.K. Petersen, and L.T. Vermeire. 2014. Seasonal weather influences on yearling beef steer production in C3-dominated Northern Great Plains rangeland. Agriculture, Ecosystems and Environment 183:110-117.
Royer, R. A., 2003. Butterflies of North Dakota: an atlas and guide. Minot State University, Minot, ND.
Seabloom, R. 2020. Mammals of North Dakota. North Dakota Institute for Regional Studies, Fargo, ND. 470 pages.
Sedivec, K.D., J.L. Printz. 2014. Ranchers guide to grassland management IV. NDSU Extension Service publication R1707.
Severson, K. E. and C. Hull Sieg. 2006. The nature of eastern North Dakota: pre-1880 historical ecology. North Dakota Institute for Regional Studies.
South Dakota Dept. of Game, Fish and Parks. 2014. South Dakota Wildlife Action Plan. Wildlife Division Report 2014-03.
Spaeth, K.E., Hayek, M.A., Toledo, D., and Hendrickson, J. 2019. Cool season grass impacts on native mixedgrass prairie species in the Norther Great Plains. America’s Grassland Conference: Working Across Boundaries. The Fifth Biennial Conference on the Conservation of America’s Grasslands. Bismarck, ND. 20-22 August.
Tidwell, D., D.T. Fogarty, and J.R. Weir. 2021. Woody encroachment in grasslands, a guide for understanding risk and vulnerability. Oklahoma State University, Oklahoma Cooperative Extension Service publication E- 1054. 32 pages.
Toledo, D., M. Sanderson, K. Spaeth, J. Hendrickson, and J. Printz. 2014. Extent of Kentucky bluegrass and its effect on native plant species diversity and ecosystem services in the northern great plains of the United State. Invasive Plant Science and Management 7(4): 543-552.
USDA, NRCS. 2021. National range and pasture handbook, (https://www.nrcs.usda.gov/wps/portal/nrcs/detailfull/national/landuse/rangepasture/?cid=stelprdb1043084)
USDA, NRCS. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.
USDA, NRCS. National Soil Information System, 100 Centennial Mall North, Room 152, Lincoln, NE 68508- 3866. (https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/tools/?cid=nrcs142p2_053552)
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USDA, NRCS. 2001. The PLANTS database, Version 3.1 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
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Vinton, M.A. and E.M. Goergen. 2006. Plant-soil feedbacks contribute to the persistence of Bromus inermis in tallgrass prairie. Ecosystems 9: 967-976.
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Contributors
Dennis Froemke, NRCS Range Management Specialist; Jeff Printz, NRCS State Range Management Specialist; Josh Saunders, NRCS Range Management Specialist;
Stan Boltz, NRCS Range Management Specialist; Michael D. Brand, State Land Dept., Director Surface Management; David Dewald, NRCS State Biologist; Paul Drayton, NRCS District Conservationist; Jody Forman, NRCS Range Management Specialist;
Kevin Sedivec, Extension Rangeland Management Specialist; Darrell Vanderbusch, NRCS Resource Soil Scientist; and Lee Voigt, NRCS Range Management Specialist.
ND NRCS: David Dewald, Alan Gulsvig, Jonathan Fettig, Mark Hayek, Chuck Lura, Jeff Printz, Steve Sieler, and Hal Weiser.
Jeff Printz/Stan Boltz
Approval
Suzanne Mayne-Kinney, 3/31/2025
Rangeland health reference sheet
Interpreting Indicators of Rangeland Health is a qualitative assessment protocol used to determine ecosystem condition based on benchmark characteristics described in the Reference Sheet. A suite of 17 (or more) indicators are typically considered in an assessment. The ecological site(s) representative of an assessment location must be known prior to applying the protocol and must be verified based on soils and climate. Current plant community cannot be used to identify the ecological site.
Author(s)/participant(s) | USDA-NRCS North Dakota |
---|---|
Contact for lead author | NRCS State Rangeland Management Specialist |
Date | 10/31/2021 |
Approved by | Suzanne Mayne-Kinney |
Approval date | |
Composition (Indicators 10 and 12) based on | Annual Production |
Indicators
-
Number and extent of rills:
Rills are not expected on this site. -
Presence of water flow patterns:
Water flow patterns are not visible. -
Number and height of erosional pedestals or terracettes:
Neither pedestals nor terracettes are expected. -
Bare ground from Ecological Site Description or other studies (rock, litter, lichen, moss, plant canopy are not bare ground):
Bare ground ranges from 10 to 15%. Bare ground patches should be small (less than 4 inches in diameter) and not connected. Animal activity (burrows and ant mounds) may occasionally result in isolated bare patches of up to 24 inches in diameter. -
Number of gullies and erosion associated with gullies:
Active gullies are not expected on this site. -
Extent of wind scoured, blowouts and/or depositional areas:
Active blowouts are not expected. If present, previously active blowouts and depositional areas should be well vegetated with not active erosion/deposition visible. -
Amount of litter movement (describe size and distance expected to travel):
Plant litter movement not expected on this site. -
Soil surface (top few mm) resistance to erosion (stability values are averages - most sites will show a range of values):
Stability class anticipated to average 5 or greater. -
Soil surface structure and SOM content (include type of structure and A-horizon color and thickness):
Structure is single grain or weak granular within the upper A-horizon. A- horizons for this ecological site range from 4 to 18 inches thick. Hue 10YR and color values of 2 or 3 moist or 3 to 5 dry, and chroma 2 to 3. -
Effect of community phase composition (relative proportion of different functional groups) and spatial distribution on infiltration and runoff:
Tall-statured rhizomatous grasses and Mid- and short-statured bunchgrasses are dominant and well distributed across the site. A diverse forb component and grass-likes are subdominant. -
Presence and thickness of compaction layer (usually none; describe soil profile features which may be mistaken for compaction on this site):
No compaction layers occur naturally on this site. -
Functional/Structural Groups (list in order of descending dominance by above-ground annual-production or live foliar cover using symbols: >>, >, = to indicate much greater than, greater than, and equal to):
Dominant:
Phase 1.1
Tall C4 rhizomatous grasses (2); Mid & short C3 bunch grasses (3); Mid & short C4 bunch grasses (3)Sub-dominant:
Phase 1.1
Forbs (13); Grass-likes (2)Other:
Minor - Phase 1.1
Shrub; Mid & short C3 rhizomatous grassesAdditional:
Due to differences in phenology, root morphology, soil biology relationships, and nutrient cycling Kentucky bluegrass, smooth brome, and crested wheatgrass are included in a new Functional/structural group, mid- and short-statured early cool-season grasses (MSeC3), not expected for this site.
To see a full version 5 rangeland health worksheet with functional/structural group tables. Please use the following hyperlink:
https://efotg.sc.egov.usda.gov/references/public/ND/53B_Sands_Narrative_FINAL_Ref_FSG.pdf -
Amount of plant mortality and decadence (include which functional groups are expected to show mortality or decadence):
Rare or not occurring on this site. -
Average percent litter cover (%) and depth ( in):
Plant litter cover is 50 to 70% with a depth of 0.25 to 0.50 inches. Litter is in contact with the soil surface. -
Expected annual annual-production (this is TOTAL above-ground annual-production, not just forage annual-production):
Annual air-dry production is 2500 lbs./ac (reference value) with normal precipitation and temperatures. Low and high production years should yield 1600 lbs./ac to 3400 lbs./ac, respectively. -
Potential invasive (including noxious) species (native and non-native). List species which BOTH characterize degraded states and have the potential to become a dominant or co-dominant species on the ecological site if their future establishment and growth is not actively controlled by management interventions. Species that become dominant for only one to several years (e.g., short-term response to drought or wildfire) are not invasive plants. Note that unlike other indicators, we are describing what is NOT expected in the reference state for the ecological site:
State and local noxious species, Kentucky bluegrass, smooth bromegrass, crested wheatgrass, quackgrass, and Eastern red cedar/juniper. -
Perennial plant reproductive capability:
Noninvasive species in all functional/structural groups are vigorous and capable of reproducing annually under normal weather conditions.
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