Heterospecific information transfer within a guild of avian scavengers in Central Oregon Public Deposited

http://ir.library.oregonstate.edu/concern/undergraduate_thesis_or_projects/wd375x640

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  • Heterospecific competition for carrion may influence community structure as dominant species are predicted to exploit subordinate, social species to find food. We used camera traps and ungulate carcasses to assess scavenger interactions in central Oregon. Preliminary analyses indicate that raptor arrival at carcasses correlated with arrival of ravens (Corvus corax) and raptors usually arrived second; however, there was no difference in raptor and raven arrival time between closed and open carcasses. Ravens gained access to flesh after raptors perforated the hide and there were significant differences in feeding locations before and after raptor arrival. Our results indicate ravens could benefit from raptor arrival, although benefits may flow both directions. These data may suggest that one scavenging species uses another to locate a carcass.
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  • Poster created with Microsoft PowerPoint 2010. Converted to pdf using Version 1.5 (Acrobat 6.x).
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  • description.provenance : Made available in DSpace on 2014-06-02T16:44:51Z (GMT). No. of bitstreams: 3 license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5) ORTWS_Poster_Nelson_Weidner_Orr.pptx: 6706056 bytes, checksum: 74e51df818ac56f33af0d13b2e6628fa (MD5) ORTWS_Poster_Nelson_Weidner_Orr.pdf: 6622148 bytes, checksum: a8360839869eb6a5f8a2e5ca99d27018 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-06-02T16:44:51Z (GMT) No. of bitstreams: 3 license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5) ORTWS_Poster_Nelson_Weidner_Orr.pptx: 6706056 bytes, checksum: 74e51df818ac56f33af0d13b2e6628fa (MD5) ORTWS_Poster_Nelson_Weidner_Orr.pdf: 6622148 bytes, checksum: a8360839869eb6a5f8a2e5ca99d27018 (MD5)
  • description.provenance : Submitted by Emily Weidner (weidnere@onid.orst.edu) on 2014-05-30T20:31:18Z No. of bitstreams: 3 license_rdf: 1232 bytes, checksum: bb87e2fb4674c76d0d2e9ed07fbb9c86 (MD5) ORTWS_Poster_Nelson_Weidner_Orr.pptx: 6706056 bytes, checksum: 74e51df818ac56f33af0d13b2e6628fa (MD5) ORTWS_Poster_Nelson_Weidner_Orr.pdf: 6622148 bytes, checksum: a8360839869eb6a5f8a2e5ca99d27018 (MD5)

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