COBBLY LOAM 5-7 P.Z.
Scenario model
Current ecosystem state
Select a state
Management practices/drivers
Select a transition or restoration pathway
- Transition 1 More details
- Transition 2 More details
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No transition or restoration pathway between the selected states has been described
Target ecosystem state
Select a state
Description
This state represents the natural range of variability under pristine conditions. Community phase changes are primarily driven by long-term drought and insect attack. Wildfire is infrequent and patchy in this ecological site due to low fuel loading and widely spaced shrubs.
Submodel
Description
The Invaded State is characterized by the presence of non-native annuals in the understory. A biotic threshold has been crossed, with the introduction of non-native annuals that cannot be removed from the system. The resiliency of the state has been reduced by the presence of non-native annual species that have the potential to alter disturbance regimes significantly from their natural or historic range of variability.
Submodel
Description
An abiotic threshold has been crossed, triggered by a frequent and repeated wildfire. This alternative stable state is extremely persistent due to strong feedbacks, including fire regimes, energy capture and nutrient cycling.
Submodel
Mechanism
Introduction of non-native species due to anthropogenic disturbances including OHV use, dry land farming, grazing, linear corridors, mining, military operations, and settlements.
Model keys
Briefcase
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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.