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Influence of body mass and environmental conditions on winter mortality risk of a northern ungulate: Evidence for a late-winter survival bottleneck

A relationship between winter weather and survival of northern ungulates has long been established, yet the possible roles of biological (e.g., nutritional status) and environmental (e.g., weather) conditions make it important to determine which potential limiting factors are most influential. … read more

Reduction of Chronic Wasting Disease Prion Seeding Activity following Digestion by Mountain Lions

Chronic wasting disease (CWD) is a transmissible prion disease first observed in the 1960s in North America. This invariably fatal disease affects multiple cervid species in the wild and in captivity. In addition to the several known transmission pathways involving … read more

Dogs are resistant to prion infection, due to the presence of aspartic or glutamic acid at position 163 of their prion protein

Unlike other species, prion disease has never been described in dogs even though they were similarly exposed to the bovine spongiform encephalopathy (BSE) agent. This resistance prompted a thorough analysis of the canine PRNP gene and the presence of a … read more

Spatial compartmentalization: A nonlethal predator mechanism to reduce parasite transmission between prey species

Predators can modulate disease transmission within prey populations by influencing prey demography and behavior. Predator-prey dynamics can involve multiple species in heterogeneous landscapes; however, studies of predation on disease transmission rarely consider the role of landscapes or the transmission among … read more

Liberalizing the killing of wolves State of the science

Recently, some state governments began pursuing aggressive efforts to reduce wolf populations through programs that include liberalized hunting and trapping seasons, and efforts to incentivize killing (e.g., bounties). These efforts represent a departure from policies of the recent past, raising … read more

Metabarcoding of fecal DNA shows dietary diversification in wolves substitutes for ungulates in an island archipelago

Although ungulates are the main prey of wolves (Canis lupus) throughout their range, substantial dietary diversity may allow wolves to persist even when ungulates are declining or rare. Alexander Archipelago wolves (Canis lupus ligoni) inhabit distinct mainland and island biogeographic … read more

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