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Gewählte Doctoral Thesis:

Jan Philipp Gerhardt (2021): Strategieoptimierung im Forstbetrieb durch Integration funktionsorientierten Waldbaus mit jagdlichen Maßnahmen.
Doctoral Thesis - Institut für Waldbau (WALDBAU), BOKU-Universität für Bodenkultur, pp 161. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
In order to practice goal-oriented silviculture, control mechanisms of forest functions must be known. One of the key drivers in this respect is wildlife influence. Adding to the understanding of forest-wildlife interactions is the goal of this thesis. Three studies were conducted to find out which control mechanisms determine the influence of ungulates in forests and how silvicultural and hunting strategies can be improved. In a meta-analysis, 38 studies were analysed. 80 different factors that determine ungulate influence in forests were found. In a study area of 131 km², the habitat preferences of red deer and the influence of winter feeding were investigated by intersecting red deer telemetry data with habitat parameters. Within a radius of 1.3 - 1.5 km, winter feeding reduced habitat selection probability in forest stands susceptible to bark peeling. However, it remains unclear whether winter feeding reduces damage in the long term, as it may have a positive effect on survival, reproduction and deer density. In addition, numerous silvicultural, hunting, and site parameters contribute to deer influence. On an area of 5,459 ha, correlations of ungulate influence and habitat parameters were further analysed. As a result, only a few factors that had a significant effect. The strongest determinant was deer density, followed by canopy cover, elevation, and regeneration density. We assume that in this study area many factors were overruled by deer density and feeding regime. In summary, the three studies give a differentiated picture. It becomes apparent that forest-wildlife-human relationships are not easily explainable, but can vary considerably across areas. For the required differentiated strategies combining silviculture, hunting and skilful spatial and temporal planning, important basics have been developed here.

Betreuer: Hochbichler Eduard

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