Isomesic Savanna
Scenario model
Current ecosystem state
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Management practices/drivers
Select a transition or restoration pathway
- Transition T1A More details
- Restoration pathway R2A More details
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No transition or restoration pathway between the selected states has been described
Target ecosystem state
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State 1
Reference State
Description
This state consists of one community phase. Much of this ecological site is of marginal value as grazing land. However, there are disturbances by introduced ungulates that result in loss of native species or reductions in their abundance that cause this state to transition to State 2 Grazed and Browsed.
Submodel
State 2
Grazed and Browsed State
Description
This state consists of one community phase. It differs from State 1 Reference by having lower diversity and production of native species due to the effects of introduced ungulates and by having been invaded by introduced plant species.
Submodel
Mechanism
This state transitions to State 2 Grazed and Browsed by reduction or loss of native species due to grazing and browsing by introduced ungulates and by invasion by introduced plant species.
Mechanism
This state may be restored to State 1 Reference State by excluding all ungulates with a suitably designed fence. Spot weed removal must be done initially and continued in the long term. Missing native plant species must be reintroduced.
Model keys
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Ecological sites
Major Land Resource Areas
The Ecosystem Dynamics Interpretive Tool is an information system framework developed by the USDA-ARS Jornada Experimental Range, USDA Natural Resources Conservation Service, and New Mexico State University.