A FOREST SIMULATION MODEL FOR PREDICTING EUCALYPT DYNAMICS AND HABITAT QUALITY FOR ARBOREAL MARSUPIALS

A FOREST SIMULATION MODEL FOR PREDICTING EUCALYPT DYNAMICS AND HABITAT QUALITY FOR ARBOREAL... A forest simulation model (called EDEN) of eucalypt dynamics in southeastern Australia is presented to predict habitat quality for arboreal marsupials. The model is presented as a tool for testing alternative hypotheses of forest management in the study area. EDEN uses a forest gap simulation (JABOWA/FORET type) model as a pattern generator of habitat in different landscape positions and under different harvesting regimes and predicts the habitat quality of this habitat for arboreal marsupials. Application of the model is illustrated by simulating four environmental scenarios (gullies and ridges, at low and at high soil nutrient levels) and three harvesting regimes for each environmental scenario (no harvesting, low-intensity harvesting, and high-intensity harvesting). The changes in tree species composition and diversity and the changes in habitat quality for the arboreal marsupials are presented for the 12 scenarios. The predicted vegetation composition is different in the different environmental scenarios and agrees with empirical studies, suggesting that EDEN is a useful pattern generator in the study area. The simulation results suggest that there may be a harvesting level for which the habitat quality is not significatively reduced, but this will depend on the landscape position. The decline in habitat quality with increasing harvesting is stronger on ridges than in gullies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ecological Applications Ecological Society of America

A FOREST SIMULATION MODEL FOR PREDICTING EUCALYPT DYNAMICS AND HABITAT QUALITY FOR ARBOREAL MARSUPIALS

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Publisher
Ecological Society of America
Copyright
Copyright © 1997 by the Ecological Society of America
Subject
Articles
ISSN
1051-0761
DOI
10.1890/1051-0761%281997%29007%5B0921:AFSMFP%5D2.0.CO%3B2
Publisher site
See Article on Publisher Site

Abstract

A forest simulation model (called EDEN) of eucalypt dynamics in southeastern Australia is presented to predict habitat quality for arboreal marsupials. The model is presented as a tool for testing alternative hypotheses of forest management in the study area. EDEN uses a forest gap simulation (JABOWA/FORET type) model as a pattern generator of habitat in different landscape positions and under different harvesting regimes and predicts the habitat quality of this habitat for arboreal marsupials. Application of the model is illustrated by simulating four environmental scenarios (gullies and ridges, at low and at high soil nutrient levels) and three harvesting regimes for each environmental scenario (no harvesting, low-intensity harvesting, and high-intensity harvesting). The changes in tree species composition and diversity and the changes in habitat quality for the arboreal marsupials are presented for the 12 scenarios. The predicted vegetation composition is different in the different environmental scenarios and agrees with empirical studies, suggesting that EDEN is a useful pattern generator in the study area. The simulation results suggest that there may be a harvesting level for which the habitat quality is not significatively reduced, but this will depend on the landscape position. The decline in habitat quality with increasing harvesting is stronger on ridges than in gullies.

Journal

Ecological ApplicationsEcological Society of America

Published: Aug 1, 1997

Keywords: arboreal marsupials ; diversity ; Eucalyptus ; forest dynamics ; forest gap model ; forest management ; habitat quality ; habitat suitability ; harvesting ; simulation

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