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Comparison of eye morphology and retinal topography in two species of new world vultures (Aves: Cathartidae)

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dc.contributor.author Lisney, Thomas J. en
dc.contributor.author Stecyk, Karyn en
dc.contributor.author Kolominsky, Jeffrey en
dc.contributor.author Graves, Gary R. en
dc.contributor.author Wylie, Douglas R. en
dc.contributor.author Iwaniuk, Andrew N. en
dc.date.accessioned 2014-11-25T20:07:16Z
dc.date.available 2014-11-25T20:07:16Z
dc.date.issued 2013
dc.identifier.citation Lisney, Thomas J., Stecyk, Karyn, Kolominsky, Jeffrey, Graves, Gary R., Wylie, Douglas R., and Iwaniuk, Andrew N. 2013. "<a href="https%3A%2F%2Frepository.si.edu%2Fhandle%2F10088%2F22565">Comparison of eye morphology and retinal topography in two species of new world vultures (Aves: Cathartidae)</a>." <em>Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology</em>. 296 (12):1954&ndash;1970. <a href="https://doi.org/10.1002/ar.22815">https://doi.org/10.1002/ar.22815</a> en
dc.identifier.issn 1932-8486
dc.identifier.uri http://hdl.handle.net/10088/22565
dc.description.abstract Vultures are highly reliant on their sensory systems for the rapid detection and localization of carrion before other scavengers can exploit the resource. In this study, we compared eye morphology and retinal topography in two species of New World vultures (Cathartidae), turkey vultures (Cathartes aura), with a highly developed olfactory sense, and black vultures (Coragyps atratus), with a less developed sense of olfaction. We found that eye size relative to body mass was the same in both species, but that black vultures have larger corneas relative to eye size than turkey vultures. However, the overall retinal topography, the total number of cells in the retinal ganglion cell layer, peak and average cell densities, cell soma area frequency distributions, and the theoretical peak anatomical spatial resolving power were the same in both species. This suggests that the visual systems of these two species are similar and that vision plays an equally important role in the biology of both species, despite the apparently greater reliance on olfaction for finding carrion in turkey vultures. Anat Rec, 2013. © 2013 Wiley Periodicals, Inc. en
dc.relation.ispartof Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology en
dc.title Comparison of eye morphology and retinal topography in two species of new world vultures (Aves: Cathartidae) en
dc.type Journal Article en
dc.identifier.srbnumber 117465
dc.identifier.doi 10.1002/ar.22815
rft.jtitle Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology
rft.volume 296
rft.issue 12
rft.spage 1954
rft.epage 1970
dc.description.SIUnit NH-Vertebrate Zoology en
dc.description.SIUnit NMNH en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 1954
dc.citation.epage 1970


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