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Trumpeter Swan Killed by Gray Wolf in Minnesota

Canis lupus (Gray Wolf) have been suspected as natural predators of Cygnus buccinator (Trumpeter Swan), but detailed descriptions of such predation events are lacking from the peer-reviewed literature. Herein, we document a Trumpeter Swan that was killed by a Gray … read more

Estimating Biomass of Berries Consumed by Gray Wolves

Gray wolves (Canis lupus) consume berries and other wild fruits seasonally when available or abundant. However, a method to convert percent frequency of occurrence or percent volume of berries in wolf scats to percent biomass has not yet been developed. … read more

Is There A Mechanism That Causes Wolves from Same Area to Disperse Long-distances in Same Direction?

Dispersal is a fundamental component of the ecology of most animal populations. Dispersing individuals typically leave their natal habitat in search of a mate or available resources such as food and space (Gotelli 2008). Grey wolves (Canis lupus) typically disperse … read more

Intrinsic Ball Retrieving in Wolf Puppies Suggests Standing Ancestral Variation for Human-Directed Play Behavior

Study in the journal iScience shows that some wolf puppies  know how to play fetch, upending the long-held hypothesis that the ability to interpret subtle human social cues is unique to dogs and arose as a result of selective breeding. … read more

Anthropogenic Food Subsidies Hinder The Ecological Role Of Wolves: Insights For Conservation Of Apex Predators In Human-modified Landscapes

In ecologically pristine ecosystems, top-down effects of apex predators play a fundamental role in shaping trophic cascades and structuring ecosystems, but in human-modified landscapes anthropogenic effects may markedly alter the ecological role of predators. In particular, human-provisioned food subsidies represent … read more

Grasshopper Consumption by Grey Wolves and Implications for Ecosystems

The eradication and subsequent reintroduction of grey wolves (Canis lupus) in the western United States has provided unique insights into the role these predators play in regulating ecosystem functioning and dynamics. Although the importance of wolves in ecosystems has been … read more

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