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Full-Text Articles in Life Sciences
Fatal Attraction?: Intraguild Facilitation And Suppression Among Predators, Kelly J. Sivy, Casey B. Pozzanghera, James B. Grace, Laura R. Prugh
Fatal Attraction?: Intraguild Facilitation And Suppression Among Predators, Kelly J. Sivy, Casey B. Pozzanghera, James B. Grace, Laura R. Prugh
Biology Faculty Publications and Presentations
Competition and suppression are recognized as dominant forces that structure predator communities. Facilitation via carrion provisioning, however, is a ubiquitous interaction among predators that could offset the strength of suppression. Understanding the relative importance of these positive and negative interactions is necessary to anticipate community-wide responses to apex predator declines and recoveries worldwide. Using state-sponsored wolf (Canis lupus) control in Alaska as a quasi experiment, we conducted snow track surveys of apex, meso-, and small predators to test for evidence of carnivore cascades (e.g., mesopredator release). We analyzed survey data using an integrative occupancy and structural equation modeling …