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Effects Of Coyote Population Reduction On Swift Fox Demographics In Southeastern Colorado, Seija M. Karki, Eric M. Gese, Mead L. Klavetter
Effects Of Coyote Population Reduction On Swift Fox Demographics In Southeastern Colorado, Seija M. Karki, Eric M. Gese, Mead L. Klavetter
USDA Wildlife Services: Staff Publications
The distribution and abundance of swift foxes (Vulpes velox) has declined from historic levels. Causes for the decline include habitat loss and fragmentation, incidental poisoning, changing land use practices, trapping, and predation by other carnivores. Coyotes (Canis latrans) overlap the geographical distribution of swift foxes, compete for similar resources, and are a significant source of mortality amongst many swift fox populations. Current swift fox conservation and management plans to bolster declining or recovering fox populations may include coyote population reduction to decrease predation. However, the role of coyote predation in swift fox population dynamics is not …
Ecology Of An Invasive Predator In Hawaii, Steven C. Hess, Heidi Hansen, Paul C. Banko
Ecology Of An Invasive Predator In Hawaii, Steven C. Hess, Heidi Hansen, Paul C. Banko
Managing Vertebrate Invasive Species
Cats (Felis catus) brought to Hawaii in the 1700s now occupy most habitats throughout the islands, including montane and sublapine zones. We studied home range, population genetics, diseases, and diet of feral cats on Hawai`i Island. Feral cats on Mauna Kea live in low densities and exhibit some of the largest reported home ranges. While 95% kernel home range estimates for 4 males ( x = 1418 ha) were nearly twice as large as 3 female home ranges ( x = 772 ha), one male maintained a home range of 2050 ha. Population genetics revealed that Mauna Kea …