Abstract
Foxes were studied from January 1991 to January 1993 in 167 square kilometres of the alpine and subalpine areas of Kosciusko National Park, New South Wales, Australia (36 24' S, 148 26' E, 1260-2238 m altitude). The study area encompassed two ski resorts. This study confirmed the varied nature of the diet of the red fox. Foxes are mainly insectivorous during snow-free months, but also prey upon three small mammal species, Antechinus swainsonii, Mastacomys fuscus and Rattus fuscipes. Direct observations indicate that human refuse from ski resorts is food for foxes in winter. It is probable that this supplementary food source sup- ports a higher density fox population than would occur in its absence. The management implications for populations of native small mammals of predation and supplementary food for foxes are discussed. We recommend that the impact of red fox predation on small mammals, particularly M. fuscus be assessed and that action be taken to limit the availability of human refuse to foxes in winter.
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