Roosting Habitat Use and Selection By Northern Spotted Owls During Natal Dispersal Public Deposited

http://ir.library.oregonstate.edu/concern/articles/7m01bn44b

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The article was published by John Wiley & Sons Ltd. and is in the public domain. The published article can be found at:  http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291937-2817.

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  • We studied habitat selection by northern spotted owls (Strix occidentalis caurina) during natal dispersal in Washington State, USA, at both the roost site and landscape scales. We used logistic regression to obtain parameters for an exponential resource selection function based on vegetation attributes in roost and random plots in 76 forest stands that were used for roosting. We used a similar analysis to evaluate selection of landscape habitat attributes based on 301 radio-telemetry relocations and random points within our study area. We found no evidence of within-stand selection for any of the variables examined, but 78% of roosts were in stands with at least some large (>50 cm dbh) trees. At the landscape scale, owls selected for stands with high canopy cover (>70%). Dispersing owls selected vegetation types that were more similar to habitat selected by adult owls than habitat that would result from following guidelines previously proposed to maintain dispersal habitat. Our analysis indicates that juvenile owls select stands for roosting that have greater canopy cover than is recommended in current agency guidelines.
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  • Sovern, S. G., Forsman, E. D., Dugger, K. M., & Taylor, M. (2015). Roosting habitat use and selection by northern spotted owls during natal dispersal. Journal of Wildlife Management, 79(2), 254-262. doi:10.1002/jwmg.834
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  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2015-03-10T20:31:10Z (GMT) No. of bitstreams: 1 SovernStanFisheriesWildlifeRoostingHabitatUse.pdf: 323964 bytes, checksum: ed82c84d14c7d579b09e00291de82e6a (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2015-03-10T20:30:52Z No. of bitstreams: 1 SovernStanFisheriesWildlifeRoostingHabitatUse.pdf: 323964 bytes, checksum: ed82c84d14c7d579b09e00291de82e6a (MD5)
  • description.provenance : Made available in DSpace on 2015-03-10T20:31:10Z (GMT). No. of bitstreams: 1 SovernStanFisheriesWildlifeRoostingHabitatUse.pdf: 323964 bytes, checksum: ed82c84d14c7d579b09e00291de82e6a (MD5) Previous issue date: 2015-02

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