Stabilizing natural selection on the early expression of a secondary sexual trait in a passerine bird

Gregoire, A and Preault, M and Cezilly, F and Wood, Matthew J and Pradel, R and Faivre, B (2004) Stabilizing natural selection on the early expression of a secondary sexual trait in a passerine bird. Journal of Evolutionary Biology, 17 (5). pp. 1152-1156. ISSN 1152–1156

Full text not available from this repository.

Abstract

Natural selection is a central tenet of evolutionary theory, yet the estimation of the direction and intensity of selection remains problematic. Here, we assess the strength of selection on the early expression of a secondary sexual ornament, bill colour, in male European blackbirds (Turdus merula) using 5 years of capture-mark-recapture (CMR) data. The best-fitting model consisted of a quadratic relationship between survival rate and bill colour, indicating stabilizing natural selection on the early expression of a secondary sexual trait. There was no evidence for sexual selection acting on bill colour in the first year. We suggest that the consideration of early selection and the adoption of refined statistical methods may reveal patterns of selection in the wild that have, as yet, remained undetected.

Item Type: Article
Article Type: Article
Uncontrolled Keywords: capture-mark-recapture;European blackbird;natural selection;sexual selection;Turdus merula
Subjects: Q Science > QL Zoology
Divisions: Faculty of Business, Computing and Applied Sciences > School of Natural & Social Sciences
Research Priority Areas: Environmental Dynamics & Governance
Depositing User: Matt Wood
Date Deposited: 02 Jul 2014 08:50
Last Modified: 26 Aug 2016 11:38
URI: http://eprints.glos.ac.uk/id/eprint/556

University Staff: Request a correction | Repository Editors: Update this record

University Of Gloucestershire

Bookmark and Share

Find Us On Social Media:

Social Media Icons Facebook Twitter Google+ YouTube Pinterest Linkedin

Other University Web Sites

University of Gloucestershire, The Park, Cheltenham, Gloucestershire, GL50 2RH. Telephone +44 (0)844 8010001.