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Head color and caruncles of sympatric Cathartes vultures (Aves: Cathartidae) in Guyana and their possible function in intra- and interspecific signaling

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dc.contributor.author Graves, Gary R.
dc.date.accessioned 2017-04-04T19:20:49Z
dc.date.available 2017-04-04T19:20:49Z
dc.date.issued 2016
dc.identifier 0006-324X
dc.identifier.citation Graves, Gary R. 2016. "<a href="https://repository.si.edu/handle/10088/31973">Head color and caruncles of sympatric Cathartes vultures (Aves: Cathartidae) in Guyana and their possible function in intra- and interspecific signaling</a>." <em>Proceedings of the Biological Society of Washington</em>, 66–75. <a href="https://doi.org/10.2988/0006-324X-129.Q2.66">https://doi.org/10.2988/0006-324X-129.Q2.66</a>.
dc.identifier.issn 0006-324X
dc.identifier.uri https://hdl.handle.net/10088/31973
dc.description.abstract The naked heads of Cathartes vultures are widely believed to be adaptations for temperature regulation and to reduce plumage fouling during carrion feeding. Bright head color and the elaborate pattern of caruncles on the head and neck skin have a likely function in intra- and interspecific signaling. These integumentary characters have been difficult to study because of extensive postmortem color fading and shrinkage in museum specimens. Here I provide the first detailed description of head color and caruncles of the Greater Yellow-headed Vulture (C. melambrotus) from freshly collected specimens and provide comparative notes on sympatric populations of the Turkey Vulture (C. aura) and Lesser Yellow-headed Vulture (C. burrovianus) from Guyana.
dc.format.extent 66–75
dc.relation.ispartof Proceedings of the Biological Society of Washington
dc.title Head color and caruncles of sympatric Cathartes vultures (Aves: Cathartidae) in Guyana and their possible function in intra- and interspecific signaling
dc.type article
sro.identifier.refworksID 19771
sro.identifier.itemID 139488
sro.description.unit NH-Vertebrate Zoology
sro.description.unit NMNH
sro.identifier.doi 10.2988/0006-324X-129.Q2.66
sro.identifier.url https://repository.si.edu/handle/10088/31973


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