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Was that a Wolf or Coyote?

Distinguishing between coyotes, wolves, and dogs. Wolf pups in mid-summer and fall can closely resemble coyotes, and it can be nearly impossible to tell them apart. Distinguishing dogs from wolves can be challenging. Many of the traits possessed by wolves can … read more

Attempt to Cross-Foster Gray Wolf, Canis lupus, Pups into Another Wolf Pack

We attempted to cross-foster four 18-19 week-old Gray Wolf (Canis lupus) pups into another Wolf pack 182 km from their natal pack territory. The pup introduction was the result of depredation control on a farm in northwestern Wisconsin. Three pups … read more

Top Predators Constrain Mesopredator Distributions

Top predators can suppress mesopredators by killing them, competing for resources and instilling fear, but it is unclear how suppression of mesopredators varies with the distribution and abundance of top predators at large spatial scales and among different ecological contexts. … read more

Competition Between Apex Predators? Brown Bears Decrease Wolf Kill Rate on Two Continents

Trophic interactions are a fundamental topic in ecology, but we know little about how competition between apex predators affects predation, the mechanism driving top-down forcing in ecosystems. We used long-term datasets from Scandinavia (Europe) and Yellowstone National Park (North America) … read more

The Ecology of Stress: Predator-Induced Stress And the Ecology of Fear

Predator-induced stress has been used to exemplify the concept of stress for close to 100 years. Walter B. Cannon, one of the pioneers of the study of stress, used predatorinduced stress in wildlife in 1915 to exemplify the ‘fight or … read more

A Tale of Three Dogs

Coyotes, dingoes and wolves are all dogs, as intelligent and loyal as our familiars. Our treatment of them is unconscionable. As a rule, apex predators are the bosses of nature’s regulatory system, promoting ecological richness and stability by suppressing irruptions … read more

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