Signals of status in wintering white-crowned sparrows, Zonotrichia leucophrys gambelii

Gary N. FUGLE; Stephen I. ROTHSTEIN; Craig W. OSENBERG; Mark, Alan MCGINLEY

doi:10.1016/S0003-3472(84)80327-9

Signals of status in wintering white-crowned sparrows, Zonotrichia leucophrys gambelii

Gary N. FUGLE, Stephen I. ROTHSTEIN, Craig W. OSENBERG, Mark, Alan MCGINLEY

Research output: Journal Publications › Journal Article (refereed) › peer-review

91 Citations (Scopus)

Abstract

The possibility of plumage status signalling within the social systems of wintering birds has been a controversial issue. Our results are the first to demonstrate conclusively the reality of such signalling. Data from eight groups of captive white-crowned sparrows ( Zonotrichia leucophrys gambelii ), each with 8 to 11 different individuals, show that immature and adult females with crowns painted to resemble more brightly coloured, dominant adult males consistently win encounters with control birds of their own age and sex. These experiments demonstrate that signals that correlate with age (adult versus immature) and sex (adult male versus adult female) are used by the birds as reliable indicators of relative dominance position. Our demonstration of status signalling draws attention to the need to explain how such a system can be evolutionarily stable and we discuss some suitable models.

Original language	English
Pages (from-to)	86-93
Number of pages	8
Journal	Animal Behaviour
Volume	32
Issue number	1
DOIs	https://doi.org/10.1016/S0003-3472(84)80327-9
Publication status	Published - 1 Feb 1984
Externally published	Yes

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title = "Signals of status in wintering white-crowned sparrows, Zonotrichia leucophrys gambelii",

abstract = "The possibility of plumage status signalling within the social systems of wintering birds has been a controversial issue. Our results are the first to demonstrate conclusively the reality of such signalling. Data from eight groups of captive white-crowned sparrows ( Zonotrichia leucophrys gambelii ), each with 8 to 11 different individuals, show that immature and adult females with crowns painted to resemble more brightly coloured, dominant adult males consistently win encounters with control birds of their own age and sex. These experiments demonstrate that signals that correlate with age (adult versus immature) and sex (adult male versus adult female) are used by the birds as reliable indicators of relative dominance position. Our demonstration of status signalling draws attention to the need to explain how such a system can be evolutionarily stable and we discuss some suitable models.",

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T1 - Signals of status in wintering white-crowned sparrows, Zonotrichia leucophrys gambelii

AU - FUGLE, Gary N.

AU - ROTHSTEIN, Stephen I.

AU - OSENBERG, Craig W.

AU - MCGINLEY, Mark, Alan

PY - 1984/2/1

Y1 - 1984/2/1

N2 - The possibility of plumage status signalling within the social systems of wintering birds has been a controversial issue. Our results are the first to demonstrate conclusively the reality of such signalling. Data from eight groups of captive white-crowned sparrows ( Zonotrichia leucophrys gambelii ), each with 8 to 11 different individuals, show that immature and adult females with crowns painted to resemble more brightly coloured, dominant adult males consistently win encounters with control birds of their own age and sex. These experiments demonstrate that signals that correlate with age (adult versus immature) and sex (adult male versus adult female) are used by the birds as reliable indicators of relative dominance position. Our demonstration of status signalling draws attention to the need to explain how such a system can be evolutionarily stable and we discuss some suitable models.

AB - The possibility of plumage status signalling within the social systems of wintering birds has been a controversial issue. Our results are the first to demonstrate conclusively the reality of such signalling. Data from eight groups of captive white-crowned sparrows ( Zonotrichia leucophrys gambelii ), each with 8 to 11 different individuals, show that immature and adult females with crowns painted to resemble more brightly coloured, dominant adult males consistently win encounters with control birds of their own age and sex. These experiments demonstrate that signals that correlate with age (adult versus immature) and sex (adult male versus adult female) are used by the birds as reliable indicators of relative dominance position. Our demonstration of status signalling draws attention to the need to explain how such a system can be evolutionarily stable and we discuss some suitable models.

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