Zur Erhebung des Einflusses von Wildtieren auf die Waldverjüngung | Investigation of the Influence of Wild Animals on Forest Regeneration

Abstract

The existing information on the influence of wild animals on forest regeneration is an important basis for solution-finding for the ever-increasing problems of regeneration. Sufficient expert estimations allow the problematic areas to be recognised at a regional level and to be separated from the others. Indicator areas of the problematic sites, which should amount to at least 30 ha, the woody plants assessed according to tree species, size class and feeding damage to tips during the vegetation period of the previous year and the resting period directly before the assessment time in spring, can be counted on systematically distributed, permanent, simple sample circles. The interpretation of regenerative parameters should be based particularly on the intensity of feeding damage and its limited values according to EIBERLE and NIGG (1987) as well as the stem numbers. Pairs of comparable areas, one fenced and one unfenced respectively,are suitable as sample subjects for selective small-scale site observation. They present information on the influence of wild animals on indicator areas of the size of a stand or of a micro-site favourable to regeneration.

Wildtiereinfluss auf die Waldverjüngung messen: mit Stammzahlen oder mit dem Verbissprozent? | Which measurement category for quantifying the impact of wild ungulates on forest regeneration: stem number or browsing percentage?

“…Andere Autoren (z.B. Rüegg 1999b, Knoke et al 2008, Ammer 2009 wiederum sehen in den Ver bissprozenten eine unverzichtbare Kontrollgrösse im WaldWildManagement.…”