Estimating lynx kill rate on reindeer usingGPS-locations and lynx movement pattern

摘要: Large carnivores cause many conflicts in Scandinavia but depredation on livestock is one of the most central ones. Free ranging semi domestic reindeer an important prey for all large carnivores within the husbandry area causing a complex carnivore-livestock conflict. In Sweden state compensates owners who suffer caused by protected large through compensation system based upon presence of large carnivores. To understand effects predator has their prey, estimates individual kill rates are needed. This study had two main objectives; 1) to test GPS-technique as method for identifying sites and 2) estimate lynx rate reindeer. We used GPS-collared lynx within evaluate possibilities use to find develop model GPS-data semidomestic reindeer northern during winter. The GPS-collars gave mean success GPS positions over period 82.5 % (range=76.5-87.8) the proportion 3D (the highest quality) averaged 85.3% (range=81.1-89.8), suggesting that provided reliable data studying lynx. Using GPS-locations movement patterns around visited non-kill sites, I developed statistical models probability unvisited cluster GPSlocation was site or not. Kill 3 individuals, 7.5, 7 4.5 months respectively, were estimated combining from clusters field the statistical clusters. including these statistical models mean 4.6 per month, 3.1 7.1 per month. type can contribute setting appropriate levels and thereby reduce conflict between