University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Kathrin Stock
(2012):
Lebensraumverbessernde Maßnahmen für Auer- und Haselwild in (klein)bäuerlichen Waldstrukturen des Naturparks Zirbitzkogel-Grebenzen.
Master / Diploma Thesis - Institut für Wildbiologie und Jagdwirtschaft (IWJ),
BOKU-Universität für Bodenkultur,
pp 74.
UB BOKU
obvsg
FullText
- Abstract:
- The implementation of silvicultural measures is an important fact for grouse because the habitat suitability influence on the survival of a population. Habitats deteriorated due to the massive increase of timber especially in the small-scale forests. Interviews of the local people provide information about basic data such as the occurrence of capercaillie and hazel grouse, or the willingness of forest owners to set silvicultural measures. A grid-mapping-system was used to determine habitat variables relevant for capercaillies, additionally indirect capercaillie signs were recorded. From a total of 454 study plots indirect signs were found in 63 cases. Using the HSI-model of Storch (1999) the habitat suitability of the research areas located in the district of Murau (Styria) were evaluated, and analyzed which predictor variables are important. As an alternative to the mechanistic HSI-model of Storch (1999) a statistical habitat model (LR) based on the study of Immitzer (2011) and Schweiger (2010) was calculated. Another fact which was included in the work and can negatively affect grouse populations is the predator presence by ravens (Corvus corax). Because of this background visual observations of ravens were recorded, but no increased occurrence could be noticed. Parts of the study sites are a popular destination for tourists, it was examined, whether the intensity of tourism had an effect on the habitat use of capercaillie in comparison of the habitat suitability. It was found that intense touristic used areas compared to rarely used tourist areas get avoided by grouse although they have the same habitat suitability. Partial aspect of this study was to effect acoustic signs of hazel grouse by imitating the mating calls. From a total of 36 checked sites signs were found in 17 cases. The study shows a local usable habitat model und concrete silvicultural suggestions to improve the habitats for capercaillie and hazel grouse.
- Beurteilende(r):
- 1.Mitwirkender: Nopp-Mayr Ursula