The peck orders of chickens: How do they develop and why are they linear?

Rushen J. (1982) The peck orders of chickens: How do they develop and why are they linear?. Animal Behaviour, 30 4: 1129-1137. doi:10.1016/S0003-3472(82)80203-0


Author Rushen J.
Title The peck orders of chickens: How do they develop and why are they linear?
Journal name Animal Behaviour   Check publisher's open access policy
ISSN 0003-3472
Publication date 1982-01-01
Sub-type Article (original research)
DOI 10.1016/S0003-3472(82)80203-0
Open Access Status Not yet assessed
Volume 30
Issue 4
Start page 1129
End page 1137
Total pages 9
Subject 1103 Clinical Sciences
1105 Dentistry
Abstract The development of peck orders in mixed sex groups of domestic chickens was observed to determine how linearity occurred. Based on threats, head-pecks and submission, dominance relationships emerged in a virtual peck right form. Leaping by males, however, did not closely conform to dominance relationships. There were no rank reversals in 50% of male-male and 80% of female-female relationships, and only single changes occurred in most of the others. These resulted from the movements of individuals up the hierarchy rather than from any general reorganization of relationships. Reversals did not necessarily occur between rank neighbours, and stable triangles were sometimes introduced. The initial status of males and females depended upon the age at which they first showed aggression, while the final, stable status of males depended upon the age at which they were first submitted to. Sexual maturity of the males produced a number of changes, with earlier-maturing birds tending to rise in status above their later-maturing companions. Linear hierarchies therefore appear to result from birds developing at different rates.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Sat, 09 Jul 2016, 16:36:21 EST by System User