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Visar resultat 1 - 5 av 8 avhandlingar som matchar ovanstående sökkriterier.
1. Anthropogenic impact on predator guilds and ecosystem processes : Apex predator extinctions, land use and climate change
Sammanfattning : Humans affect ecosystems by changing species compositions, landscape and climate. This thesis aims to increase our understanding of anthropogenic effects on mesopredator abundance due to changes in apex predator status, landscape and climate. LÄS MER
2. Interactions between Eurasian lynx and wolverines in the reindeer husbandry area
Sammanfattning : In conservation and management, carnivore species are often treated as isolated units, even though interspecific interactions can have important implications for the behaviour, demography and distribution of the species involved. In this thesis I used individual based GPS-location data to study interactions between two solitary predators in the reindeer husbandry area in Northern Scandinavia: The Eurasian lynx (Lynx lynx), an obligate predator, and the wolverine (Gulo gulo), an opportunistic predator and scavenger. LÄS MER
3. Predator management : space use and monitoring of Lynx in the reindeer husbandry area
Sammanfattning : Successful legislation during the 20th century has led to recovering populations of large carnivores in Europe and we are now facing the challenges of managing the populations to fulfil both national and international conservation goals as well as minimizing the conflicts resulting from depredation on domestic animals on a national level. I investigated the space use by Eurasian lynx (Lynx lynx) in relation to their migrating main prey, the semi-domesticated reindeer (Rangifer t. LÄS MER
4. 'O neighbour, where art thou?' : spatial and social dynamics in wolverine and lynx, from individual space use to population distribution
Sammanfattning : The organisation of individuals in space and time influences population structure and dynamics, and is important for our understanding of animal ecology. The aim of this thesis is to gain an increased understanding of the mechanisms driving the abundance and distribution of solitary carnivores, from individual space use to population-level distribution. LÄS MER
5. Life and death in wolverines : linking demography and habitat for conservation
Sammanfattning : Developing trustworthy conservation planning for endangered species requires a deep understanding of the variations of their populations in both space and time. I used individual-based long-term location and demographic data on wolverines (Gulo gulo) in Northern Sweden, and data on reproductions from the national monitoring systems of Norway and Sweden, to analyze how wolverine demography in Scandinavia is affected by variation in habitat and management policies. LÄS MER
