Spatially biased reduction of browsing damage by sika deer through culling
JOURNAL OF WILDLIFE MANAGEMENT(2022)
摘要
Culling large herbivores can reduce browsing damage. Our objective was to verify the effect of culling by considering spatial changes in browsing damage to test the hypothesis that the benefits of spatially biased culling extend to the spatial scale of culling. Culling sika deer (Cervus nippon) in Kumamoto Prefecture, Japan, increased from 2009-2017, but browsing damage remained stable across the prefecture; regional damage trends differed among grid meshes (i.e., 5 km x 5 km). Meshes with browsing damage reduction received higher culling pressure and a decline in the deer population. Browsing damage reduction from culling was not uniform across regions and was biased by spatial bias in culling. This study highlights the importance of spatial scale in large herbivore management and evaluation of its effect.
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关键词
browsing damage, culling, large herbivore, sika deer, spatio-temporal change
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