University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Barbara Vospernig
(2014):
Analyse eines Rehwildlebensraumes und Darstellung der Verbisssituation im Revier der Meran´schen Forstverwaltung Stainz.
Master / Diploma Thesis - Institut für Wildbiologie und Jagdwirtschaft (IWJ),
BOKU-Universität für Bodenkultur,
pp 92 .
UB BOKU
obvsg
- Abstract:
- In this study, a typical habitat of roe deer deer (Capreolus capreolus) in Western Styria should be characterized including impacts of roe deer on forest regeneration. The study area was situated within the forestry administration of Meran (“Meran´sche Forstverwaltung”) in Stainz, where the study addressed the following research questions: a) What types of wildlife-ecological-stand-types (WEBT) may be identified and which of them are correlated with roe deer abundance? b) What browsing influence of roe deer on forest regeneration can be observed? c) Which kind of factors influence habitat selection of roe deer? To answer these questions, vegetation data as well as indirect signs (roe deer pellets) were mapped on a 100x100m grid within a study area of 400 ha. A generalised linear model (logistic regression) was used to predict occurrence of roe deer in terms of indirect signs and to identify substantial variables being relevant for habitat use. Variables affecting roe deer occurrence in the final model were canopy cover, coverage of ground vegetation lower than 1,3 m above ground level, ground vegetation cover and lying woody debris. Furthermore, three WEBTs were most frequently observed, i.e. dense pole stands, open timber stands and regeneration taller than 130 cm growing under canopy, all three being correlated with the occurrence of roe deer. Browsing could only be observed to a very low extent. Thereby, dwarf shrubs (Vaccinium spec., Rubus spec.), which are the most important food supply during wintertime and seedlings of spruce were affected. The results show roe deer habitats are well managed in the forest enterprise, providing a mosaic of differently structured forest stands and well developed natural regeneration. Hence the predisposition of browsing impact is very low. Keywords: roe deer (Capreolus capreolus), habitat modeling, logistic regression, browsing impact
- Beurteilende(r): Hackländer Klaus
- 1.Mitwirkender: Nopp-Mayr Ursula