Boulder Ridge Savannah

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List model

Ecosystem states

State 1

Savannah

8344

Circle-spoke model

Ecosystem states

State 1

8344

Scenario model

Ecosystem states

Current ecosystem state

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State 1
Savannah
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Management practices/drivers

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No transition or restoration pathway between the selected states has been described

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State 1
Savannah
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8344

State 1
Savannah

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Description

The Savannah State represents the range in variability under natural disturbances such as periodic grazing, fire, and drought. The dominant plant species are warm-season grasses with some forbs and few woody species.

Characteristics and indicators

While many woody species may occupy the site, herbaceous vegetation has driven the ecological function. Granite cobbles and rock outcrops range from 25 to 70 percent cover. Woody canopy may be highly variable, but is generally less than 30 percent coverage.

Herbaceous species include little bluestem, big bluestem, lndiangrass, switchgrass, and wildrye as well as native lespedezas, sunflowers, and other asters.

Woody species include oak species, sumac, and hackberry. Estimated annual production is 1,000 to 3,500 pounds per acre.

Resilience management

While some areas may be suitable for bison or cattle grazing, many areas are restricted to grazing by smaller browsers. Therefore, grazing is not as important in driving the dynamics as on other sites. Fire return and intensity has a greater impact on regulating woody species on the site. However, some areas are protected from most fires due to surface rock and fuel continuity.

Model keys

Briefcase

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Boulder Ridge Savannah

List model

Circle-spoke model

Scenario model

Current ecosystem state

Management practices/drivers

Target ecosystem state

State 1
Savannah

Description

Characteristics and indicators

Resilience management

Model keys

Briefcase

Ecological sites

Major Land Resource Areas