Scavenging ecology represents a critical pathway of energy transfer in terrestrial ecosystems. In the Canadian Rocky Mountains, mustelid fitness is subject to influence by both environmental features and interspecific competition at winter carrion sites. Species employ diverse adaptive strategies to optimize foraging, including site-level spatial segregation, fine-scale spatial responses, and temporal adjustments.

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This work examines scavenging interactions among short-tailed weasels, American martens, wolverines, and lynx using remote camera traps and a coupled spatial–temporal framework. Results show that carrion site use is jointly structured by competition threats and environmental conditions.​

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*Illustration (Bell et al. 2023, Fig. 4) by Jeff Dixon licensed to Jason Fisher (coauthor).

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