Sökning: "Vulpes vulpes"
Visar resultat 1 - 5 av 18 avhandlingar innehållade orden Vulpes vulpes.
1. Population ecology of the red fox (Vulpes vulpes L.) in relation to food supply
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2. Cycles of voles, predators, and alternative prey in boreal Sweden
Sammanfattning : Bank voles, grey-sided voles, and field voles had synchronous 3-4 year density cycles with variable amplitudes which averaged about 200-fold in each species. Cycles of vole predators (red fox and Tengmalm's owl), and their (foxes') alternative prey (mountain hare and forest grouse) lagged behind the vole cycles. LÄS MER
3. Population dynamics of the Swedish red fox, Vulpes vulpes (L.)
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4. Exploring Brain Gene Expression i Animal Models of Behaviour
Sammanfattning : The genetic basis for behavioural traits is largely unknown. The overall aim of this thesis was to find genes with importance for behavioural traits related to fear and anxiety. Microarray analysis was used to screen expression profiles of brain regions important for emotional behaviour in dogs, wolves, foxes and mice. LÄS MER
5. Predator responses to non-stationary rodent cycles
Sammanfattning : Regular fluctuations in population size, cycles, are common in small mammals and have important effects on predator populations and life histories. In this thesis, I identify long-term patterns and processes in two specialist predators, the arctic fox Vulpes lagopus and the rough-legged buzzard Buteo lagopus, in relation to their prey (lemmings and voles) and in the case of the arctic fox also to a dominant competitor, the red fox Vulpes vulpes. LÄS MER