Szukana fraza: [Opis = "This is a study of the mutual impact of roe deer, Capreolus capreolus \(Linnaeus, 1758\) and red foxes, Vulpes vulpes \(Linnaeus, 1758\) \; deer mortality and food supply needed for fox reproduction. Density of roe deer was reported via questionnaires to increase during the study except an interruption after the severe winter 1976\/77. The interruption was more pronounced in a northern forested area with deeper snow cover than in a southern mixed agricultural area."]

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