Ecological Sites & State-and-Transition Models
"An ecological site is defined as a distinctive kind of land with specific soil and physical characteristics that differ from other kinds of land in its ability to produce a distinctive kind and amount of vegetation and its ability to respond similarly to management actions and natural disturbances." - NRCS
State and transition models (STMs) are key components of ecological site descriptions. STMs are one way of describing the multiple states and associated ecosystem services that a particular site can achieve; thresholds and ecological resilience of individual states to stressors; and underlying roles of management practices and natural processes in pushing a site between states.
State and Transition Models - General Concepts and Methods
State and Transition Models - Oak Woodlands
- George et al. 1992. Application of nonequilibrium ecology to management of Mediterranean grasslands.
- Huntsinger and Bartolome. 1992. A state transition model of the ecological dynamics of Quercus dominated woodlands in California and southern Spain.
- Jackson and Bartolome. 2002. A state-transition approach to understanding nonequibibrium plant community dynamics in Californian grasslands.