Variation in the diet composition of a generalist predator, the red fox, in relation to season and density of main prey
作者： Graziella Lucia Dell'Arte , Toni Laaksonen , Kai Norrdahl , Erkki Korpimäki
DOI: 10.1016/J.ACTAO.2006.12.007
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摘要: Diet composition of a generalist predator, the red fox (Vulpes vulpes) in relation to season (winter or summer) and abundance of multi-annually cyclic voles was studied in western Finland from 1983 to 1995. The proportion of scats (PS; a total of 58 scats) including each food category was calculated for each prey group. Microtus voles (the field vole M. agrestis and the sibling vole M. rossiaemeridionalis) were the main prey group of foxes (PS= 0.55) and they frequently occurred in the scats both in the winter and summer (PSs 0.50 and 0.62 …
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