Potential trophic cascades triggered by the barred owl range expansion

  title={Potential trophic cascades triggered by the barred owl range expansion},
  author={Samantha R. Holm and Barry R. Noon and J David Wiens and William J. Ripple},
  journal={Wildlife Society Bulletin},
Recently, the barred owl (Strix varia) has expanded its range into the Pacific Northwest of the United States resulting in pronounced effects on the demography and behavior of the northern spotted owl (S. occidentalis caurina). The range expansion has brought together historically allopatric species, creating the potential for significant changes in the avian predator community with possible cascading effects on food-web dynamics. The adverse effects of the barred owl on the behavior and… Expand

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