Data/hora: 02/06/2024 01:32:11

Provedor de dados: | 5
País: | France
Título: | Carry-over body mass effect from winter to breeding in a resident seabird, the little penguin
Autores: | Salton, Marcus; Saraux, Claire; Dann, Peter; Chiaradia, André.
Data: | 2015-01
Ano: | 2015
Palavras-chave: | Capital-income breeding; Penguin monitoring system; Parental investment; Timing of laying; Breeding success; Seabirds.
Resumo: | Using body mass and breeding data of individual penguins collected continuously over 7 years (2002–2008), we examined carry-over effects of winter body mass on timing of laying and breeding success in a resident seabird, the little penguin (Eudyptula minor). The austral winter month of July consistently had the lowest rate of colony attendance, which confirmed our expectation that penguins work hard to find resources at this time between breeding seasons. Contrary to our expectation, body mass in winter (July) was equal or higher than in the period before (‘moult-recovery’) and after (‘pre-breeding’) in 5 of 7 years for males and in all 7 years for females. We provided evidence of a carry-over effect of body mass from winter to breeding; females and males with higher body mass in winter were more likely to breed early and males with higher body mass in winter were likely to breed successfully. Sex differences might relate to sex-specific breeding tasks, where females may use their winter reserves to invest in egg-laying, whereas males use their winter reserves to sustain the longer fasts ashore during courtship. Our findings suggest that resident seabirds like little penguins can also benefit from a carry-over effect of winter body mass on subsequent breeding.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00253/36431/34976.pdf

DOI:10.1098/rsos.140390

http://archimer.ifremer.fr/doc/00253/36431/

Editor: | The Royal Society
Formato: | application/pdf
Fonte: | Royal Society Open Science (2054-5703) (The Royal Society), 2015-01 , Vol. 2 , N. 1 , P. 140390-140390

Fonte:

2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

info:eu-repo/semantics/openAccess

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