Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.3/4548
Título: Do Cory’s Shearwaters Calonectris borealis choose mates based on size?
Autor: Nava, Cristina P.
Kim, Sin-Yeon
Magalhães, Maria C.
Neves, Verónica C.
Palavras-chave: Mate Choice
Assortative Mating
Body Size
Reproductive Performance
Calonectris Borealis
Azores Archipelago
Data: 2014
Editora: Springer Publishing Company
Citação: Nava C, Kim S-Y, Magalhães MC & Neves VC (2014). Do Cory’s Shearwaters Calonectris borealis choose mates based on size? "Journal of Ornithology", 155(4): 869-875, doi: 10.1007/s10336-014-1070-8.
Resumo: Many bird species rely on visual cues for mate choice, including those provided by body size or by the size of a body appendage. Mate choice based on size may lead to size-assortative mating, which may in turn have consequences for reproductive performance. In this study, we examined whether body size influences mate choice decisions of Cory’s Shearwater Calonectris borealis, a seabird with nocturnal activity on land. We found evidence of negative assortative mating for bill morphology (nostril height and bill length), but found no assortative mating according to body mass, tarsus length, and wing length. In addition, we investigated the influence of negative assortative mating and individual body size-related traits on reproductive performance, i.e., laying date and breeding success. We found that laying date and breeding success were not correlated with the extent of assortative mating, i.e., the assortatively mating breeders did not lay earlier and were not more likely to breed successfully. However, we found that heavier females (body mass measured during pre-laying) laid later in the season. We discuss these results in the light of possible effects of acoustic signals and foraging strategies on the mating pattern. Furthermore, we suggest that some female attributes may be crucial for breeding success in Cory’s Shearwaters.
Peer review: yes
URI: http://hdl.handle.net/10400.3/4548
DOI: 10.1007/s10336-014-1070-8
ISSN: 1439-0361
Aparece nas colecções:DOP - Artigos em Revistas Internacionais / Articles in International Journals

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