Killing Barred Owls to Help Spotted Owls I: A Global Perspective

@inproceedings{Livezey2010KillingBO,
  title={Killing Barred Owls to Help Spotted Owls I: A Global Perspective},
  author={Kent B. Livezey},
  year={2010}
}
  • K. Livezey
  • Published 17 August 2010
  • Environmental Science
Abstract Barred Owls (Strix varia) expanded their range to include western North America and have been competing with federally threatened Northern Spotted Owls (S. occidentalis caurina) for the past few decades. To help protect Spotted Owls, the US Fish and Wildlife Service is considering conducting a 3- to 10-y study in which as many as 2150 to 4650 Barred Owls would be killed and, possibly, conducting long-term management of Barred Owls. To help give these considerations a global perspective… 
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25 Citations
Highly Influential Citations
1
Background Citations
15
Methods Citations
1

25 Citations

Killing Barred Owls to Help Spotted Owls II: Implications for Many Other Range-Expanding Species
TLDR
Information is presented concerning how frequently range expansions of North American birds and other factors may precipitate similar management issues in the near future, probability that range expansions will continue, increases in number of listed species, and further documentation of negative effects between species are presented.
The Journal of Wildlife Management
Barred owls (Strix varia) are forest‐dwelling owls, native to eastern North America, with populations that expanded westward into the range of the spotted owl (Strix occidentalis). Barred owls exert…
Review of the effects of barred owls on spotted owls
Barred owls (Strix varia) are forest‐dwelling owls, native to eastern North America, with populations that expanded westward into the range of the spotted owl (Strix occidentalis). Barred owls exert…
Removing barred owls from local areas: Techniques and feasibility
TLDR
L Lethal removal of barred owls was rapid, technically feasible, and cost-effective, and recommendations for techniques found to be effective are provided.
Chapter 4: Northern spotted owl habitat and populations: status and threats
The northern spotted owl (Strix occidentalis caurina) was listed as threatened under the Endangered Species Act in 1990 (USFWS 1990). Providing adequate amounts of suitable forest cover to sustain…
Early detection of rapid Barred Owl population growth within the range of the California Spotted Owl advises the Precautionary Principle
ABSTRACT Biological invasions are most practical to manage when invasive species population densities are low. Despite a potentially narrow window of opportunity for efficient management, managers…
Potential trophic cascades triggered by the barred owl range expansion
TLDR
It is posited that shared prey species and those uniquely consumed by barred owls, along with other competing native predators, may experience changes in behavior, abundance, and distribution as a result of increased rates of predation by rapidly expanding populations of barred Owls.
Managing wolves (Canis lupus) to recover threatened woodland caribou (Rangifer tarandus caribou) in Alberta
TLDR
It is recommended that predation management be combined with effective habitat conservation and long-term planning to effect the recovery of species, such as woodland caribou, which are declining as a result of habitat-mediated apparent competition.
Patch-scale culls of an overabundant bird defeated by immediate recolonization.
TLDR
It is concluded that culling at a patch scale is not an efficient method of reducing Noisy Miner abundance to levels unlikely to impact threatened woodland birds in the highly modified study landscape, despite estimated costs 18 times lower than another potential management response of revegetation.
Barred owls and landscape attributes influence territory occupancy of northern spotted owls
TLDR
The positive relationship between barred owl detections and local extinction probability suggests that because of competition with barred owls, spotted owls are being displaced.
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References

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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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TLDR
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Abstract Barred Owls (Strix varia) have expanded their range into the Pacific Northwest, and anecdotal evidence suggests that they may be displacing the federally threatened Northern Spotted Owl…
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