Natural Resources
Conservation Service
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
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Transition T1A
Absence of disturbance and natural regeneration over time
More details -
Transition T1B
Introduction of non-native species coupled with prolonged, excessive grazing
More details -
Restoration pathway R2A
Reintroduction of fire and regular disturbance return intervals
More details -
Transition T2A
Introduction of non-native species coupled with prolonged, excessive grazing
More details -
Restoration pathway T3A
Absence of disturbance that reduces woody species and natural regeneration over time
More details -
No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Dominant plant species
sugarberry (Celtis laevigata), tree
live oak (Quercus virginiana), tree
giant cane (Arundinaria gigantea), grass
Submodel
Dominant plant species
sugarberry (Celtis laevigata), tree
Submodel
Dominant plant species
Bermudagrass (Cynodon dactylon), grass
beardgrass (Bothriochloa), grass
Submodel
Mechanism
Continued heavy overgrazing, lack of fire, and lack of brush management will transition the site to State 2.
Transition T1B
Introduction of non-native species coupled with prolonged, excessive grazing
Mechanism
Invasion of the site by exotic plant species causes the site to transition to State 3.
Restoration pathway R2A
Reintroduction of fire and regular disturbance return intervals
Mechanism
Prescribed grazing, prescribed fire, and brush management will restore the site to State 1. Overstory canopies need to be below 40 percent to reestablish the reference community.
Transition T2A
Introduction of non-native species coupled with prolonged, excessive grazing
Mechanism
Invasion of the site by exotic plant species causes the site to transition to State 3.
Restoration pathway T3A
Absence of disturbance that reduces woody species and natural regeneration over time
Mechanism
Controlling exotic grasses by use of chemical, mechanical, or biological means will transition the site back to State 2. Removing exotic species is very difficult with full elimination almost impossible.
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.
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