Translator Disclaimer
1 June 2014 Relationships Between Nest-Cavity and Mate Selection, Reproductive Performance and Fidelity in the Mediterranean Endemic Yelkouan Shearwater Puffinus yelkouan
Karen Bourgeois, Sylvain Dromzée, Eric Vidal
Author Affiliations +
Abstract

Nest and mate choice is important in seabirds, influencing reproductive performance as both nest-site and partner quality varies. The Yelkouan Shearwater Puffinus yelkouan nests mainly in pre-existing cavities and to a lesser extent in cavities it excavates. We have monitored breeding colonies of the Yelkouan Shearwater on two islands of the Hyères archipelago, south-east of France, for nine years to analyse nest-cavity and mate selection, to evaluate nest-cavity and mate fidelity, and to investigate their relationships with reproductive performance. Yelkouan Shearwaters selected nest-cavities providing a high degree of concealment and protection. Reproductive performance and fidelity to cavity were highest in deep cavities with a winding tunnel and a steep slope around the entrance. Mating was assortative for bill and tarsus measurements. High rates of return to the same cavity (94.7%) and mate (95.5%) were recorded. Fidelity to nest-cavity was highest when breeding succeeded the previous year (fidelity rate: 97.3% in successful breeders vs. 87.8% in unsuccessful breeders) and was most likely to result in successful breeding the same year (breeding success: 67.5% in faithful breeders vs. 43.8% in movers). The rate of divorce was low (4.5%), did not differ between islands and was not associated with breeding performance. However, breeding success increased by 22.2 ± 9.9% after mate change following a divorce or the absence of a previous mate. Such high rates of nest-cavity and mate fidelity could indicate a good population status with breeding habitat, food resource and mates of good quality.

Karen Bourgeois, Sylvain Dromzée, and Eric Vidal "Relationships Between Nest-Cavity and Mate Selection, Reproductive Performance and Fidelity in the Mediterranean Endemic Yelkouan Shearwater Puffinus yelkouan," Acta Ornithologica 49(1), 9-22, (1 June 2014). https://doi.org/10.3161/000164514X682850
Received: 1 May 2013; Accepted: 1 May 2014; Published: 1 June 2014
JOURNAL ARTICLE
14 PAGES


Share
SHARE
KEYWORDS
mate choice
mate fidelity
nest fidelity
nest-site choice
Procellariiformes
reproductive performance
sexual size dimorphism
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top