Landscape vegetation and wildlife suitability models can be used to gain insights into the theoretical underpinnings of system processes; to make general predictions of change over large areas and long time frames; to make specific predictions for a small area; to address a single species of concern; and to evaluate trade-offs among multiple species. Several models to predict vegetation change for trees and forest stands are well established, and are widely used to predict forest change, and develop management prescriptions. Methods for validating short-term predictions of tree or stand change are documented in numerous sources. These typically compare model predictions with changes observed from remeasured forest inventor y plots. The metrics of interest are usually tree size or growth, tree mortality, and stand change per hectare (density, volume, diameter distribution). Validation of models generally consists of measuring the departure of the observed from predicted vegetation change, and reporting bias and precision of estimates by species, per hectare, and over time. Evaluation of landscape-scale forest vegetation models can be subdivided into three parts: validation of forest structure change in the absence of disturbance; validation of the rate of exogenous disturbance; and evaluation of species dynamics as affected by disturbance type and by ecological land type.
|Title of host publication
|Models for Planning Wildlife Conservation in Large Landscapes
|Number of pages
|Published - 2009