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Chaffinch (Fringilla Coelebs) Epaulette Display Depends On the Degree of Exposure But Not Symmetry of Intruder's Epaulettes

Chaffinch (Fringilla Coelebs) Epaulette Display Depends On the Degree of Exposure But Not... Abstract1. Epaulettes, white wing patches, are exposed in agonistisc displays between territorial chaffinch males. 2. As with many bilateral traits one should expect that asymmetrical development of the two wing patches could indicate poorer individual. Therefore it is likely that territory owners change their display toward asymmetrical competitor. 3. We tested the effect of exposure and symmetry of epaulettes of a stuffed bird on epaulette exposure of the territorial male. The results showed that: 4. males increased the degree of their epaulette exposure in response to larger epaulette on the mount; 5. males did not respond to the asymmetry of epaulettes on the mount. 6. The results aggree with the interpretation that the males' display of exposed epaulettes to each other could be regarded as communication. The epaulette display could be a signal of high aggressive motivation in the chaffinch. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Behaviour Brill

Chaffinch (Fringilla Coelebs) Epaulette Display Depends On the Degree of Exposure But Not Symmetry of Intruder's Epaulettes

Behaviour , Volume 134 (15-16): 7 – Jan 1, 1997

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References (16)

Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0005-7959
eISSN
1568-539X
DOI
10.1163/156853997x00089
Publisher site
See Article on Publisher Site

Abstract

Abstract1. Epaulettes, white wing patches, are exposed in agonistisc displays between territorial chaffinch males. 2. As with many bilateral traits one should expect that asymmetrical development of the two wing patches could indicate poorer individual. Therefore it is likely that territory owners change their display toward asymmetrical competitor. 3. We tested the effect of exposure and symmetry of epaulettes of a stuffed bird on epaulette exposure of the territorial male. The results showed that: 4. males increased the degree of their epaulette exposure in response to larger epaulette on the mount; 5. males did not respond to the asymmetry of epaulettes on the mount. 6. The results aggree with the interpretation that the males' display of exposed epaulettes to each other could be regarded as communication. The epaulette display could be a signal of high aggressive motivation in the chaffinch.

Journal

BehaviourBrill

Published: Jan 1, 1997

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