Effect of Deer Browsing on Timber Production in Allegheny Hardwood Forests of Northwestern Pennsylvania

Regeneration surveys in fenced and unfenced portions of thirteen 9- to 22-year-old clearcuts on the Allegheny Plateau of Northwestern Pennsylvania show that deer browsing has resulted in (a) inadequate stocking of tree species, (b) delay in establishment, and (c) less valuable species composition. Ninety-two percent of the fenced areas, but only 38 percent of the unfenced areas, are considered satisfactorily stocked. The value of timber production lost as a result of browsing during the regeneration period is estimated to average $1,075 per acre. This article was written by David A. Marquis, United States Department of Agriculture Forest Service (Research Paper NE-475).

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