Urohidrosis and tarsal color in Cathartes vultures (Aves: Cathartidae)

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Urohidrosis and tarsal color in Cathartes vultures (Aves : Cathartidae). / Graves, Gary R.

In: Proceedings of the Biological Society of Washington, Vol. 132, No. 1, 2019, p. 56-64.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Graves, GR 2019, 'Urohidrosis and tarsal color in Cathartes vultures (Aves: Cathartidae)', Proceedings of the Biological Society of Washington, vol. 132, no. 1, pp. 56-64. https://doi.org/10.2988/19-00002

APA

Graves, G. R. (2019). Urohidrosis and tarsal color in Cathartes vultures (Aves: Cathartidae). Proceedings of the Biological Society of Washington, 132(1), 56-64. https://doi.org/10.2988/19-00002

Vancouver

Graves GR. Urohidrosis and tarsal color in Cathartes vultures (Aves: Cathartidae). Proceedings of the Biological Society of Washington. 2019;132(1):56-64. https://doi.org/10.2988/19-00002

Author

Graves, Gary R. / Urohidrosis and tarsal color in Cathartes vultures (Aves : Cathartidae). In: Proceedings of the Biological Society of Washington. 2019 ; Vol. 132, No. 1. pp. 56-64.

Bibtex

@article{7a28f8ecb2104302989b7b851b5b5561,
title = "Urohidrosis and tarsal color in Cathartes vultures (Aves: Cathartidae)",
abstract = "Heat-stressed New World vultures (Cathartidae) practice urohidrosis by excreting urate-rich urine on their tarsi and feet to decrease body temperature through evaporative cooling. Soft part colors are useful taxonomic characters in Cathartes, but dried urates obscure the color and pigmentation patterns of the tarsi and feet. I describe these characters in fresh specimens of Cathartes aura (Turkey Vulture), C. burrovianus (Lesser Yellow-headed Vulture), and C. melambrotus (Greater Yellow-headed Vulture) collected in Guyana. Species-specific differences in the melanic pigmentation of the tarsi and feet are revealed when urates are removed. The rosy-red intertarsal joints, which are normally unobscured by urates, may function in intraspecific signaling in all three species. The seasonality and geographic extent of urohidrosis in Cathartes are unknown.",
keywords = "Cathartes, Guyana, intraspecific signaling, tarsal color, urohidrosis, vulture",
author = "Graves, {Gary R.}",
year = "2019",
doi = "10.2988/19-00002",
language = "English",
volume = "132",
pages = "56--64",
journal = "Proceedings of the Biological Society of Washington",
issn = "0006-324X",
publisher = "Allen Press Inc.",
number = "1",

}

RIS

TY - JOUR

T1 - Urohidrosis and tarsal color in Cathartes vultures (Aves

T2 - Cathartidae)

AU - Graves, Gary R.

PY - 2019

Y1 - 2019

N2 - Heat-stressed New World vultures (Cathartidae) practice urohidrosis by excreting urate-rich urine on their tarsi and feet to decrease body temperature through evaporative cooling. Soft part colors are useful taxonomic characters in Cathartes, but dried urates obscure the color and pigmentation patterns of the tarsi and feet. I describe these characters in fresh specimens of Cathartes aura (Turkey Vulture), C. burrovianus (Lesser Yellow-headed Vulture), and C. melambrotus (Greater Yellow-headed Vulture) collected in Guyana. Species-specific differences in the melanic pigmentation of the tarsi and feet are revealed when urates are removed. The rosy-red intertarsal joints, which are normally unobscured by urates, may function in intraspecific signaling in all three species. The seasonality and geographic extent of urohidrosis in Cathartes are unknown.

AB - Heat-stressed New World vultures (Cathartidae) practice urohidrosis by excreting urate-rich urine on their tarsi and feet to decrease body temperature through evaporative cooling. Soft part colors are useful taxonomic characters in Cathartes, but dried urates obscure the color and pigmentation patterns of the tarsi and feet. I describe these characters in fresh specimens of Cathartes aura (Turkey Vulture), C. burrovianus (Lesser Yellow-headed Vulture), and C. melambrotus (Greater Yellow-headed Vulture) collected in Guyana. Species-specific differences in the melanic pigmentation of the tarsi and feet are revealed when urates are removed. The rosy-red intertarsal joints, which are normally unobscured by urates, may function in intraspecific signaling in all three species. The seasonality and geographic extent of urohidrosis in Cathartes are unknown.

KW - Cathartes

KW - Guyana

KW - intraspecific signaling

KW - tarsal color

KW - urohidrosis

KW - vulture

U2 - 10.2988/19-00002

DO - 10.2988/19-00002

M3 - Journal article

AN - SCOPUS:85069160842

VL - 132

SP - 56

EP - 64

JO - Proceedings of the Biological Society of Washington

JF - Proceedings of the Biological Society of Washington

SN - 0006-324X

IS - 1

ER -

ID: 231245669