Modelling changes in roe deer habitat in response to forest management

摘要: Abstract We evaluated the change of roe deer habitat in response to three forest management scenarios: no harvest, clear-cut and single tree selection. For this purpose we simulated understory vegetation for a 50-year period an alpine region using individual growth model PROGNAUS with extension vegetation. also represented spatial distribution stands geographic information system. Habitat suitability forest's predisposition browsing were then models developed by Reimoser Zandl [Reimoser, F., Zandl, J., 1993. Methodisches Grundkonzept fur ein Expertensystem “Wildokologie und Waldverjungung”, Anwendungsbeispiel FIW II-Fallstudie 1 (Schoneben/Oberosterreich). Forschungsberichte 1993/4, Osterreichische Gesellschaft Waldokosystemforschung experimentelle Baumforschung, 104 pp.]. These aggregate eight variables (canopy cover, canopy cover evergreen trees, stand structural class, types vegetation, density margins, aspect, elevation meso-relief) four life requisites deer: forage, from predators, shelter adverse weather daytime loafing area. are weighted combined form overall score. Results simulation showed that quantity quality food supply similar all scenarios. No harvest produced best thermal cover. “Clear-cut management” resulted hiding high values living area index. selection was lowest. Clear-cutting quality. The ratio between forage independent settling stimulus however disadvantageous Clear-cut therefore is attractive deer, but facilitates over abundant populations which consequently cause damage forests.