Colouration in Atlantic puffins and blacklegged kittiwakes: monochromatism and links to body condition in both sexes

Autor: Bruno Faivre, Emilie Arnoux, Thierry Boulinier, Vincent Staszewski, Arnaud Grégoire, Claire Doutrelant, Doris Gomez, Torkild Tveraa
Přispěvatelé: Centre d’Ecologie Fonctionnelle et Evolutive ( CEFE ), Institut de Recherche pour le Développement ( IRD [France-Sud] ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Montpellier ( UM ) -Institut national de la recherche agronomique [Montpellier] ( INRA Montpellier ) -École pratique des hautes études ( EPHE ) -Centre international d'études supérieures en sciences agronomiques ( Montpellier SupAgro ) -Université Paul-Valéry - Montpellier 3 ( UM3 ) -Institut national d’études supérieures agronomiques de Montpellier ( Montpellier SupAgro ), Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Norwegian Institute for Nature Research ( NINA ), The Polar Environmental Centre, Funding obtained through the French Polar Inst. (IPEV, programme no. 333)., Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université Paul-Valéry - Montpellier 3 (UM3), Biogéosciences [UMR 6282] [Dijon] (BGS), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Norwegian Institute for Nature Research (NINA), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud])
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Journal of Avian Biology
Journal of Avian Biology, Wiley, 2013, 44 (5), pp.451-460. 〈10.1111/j.1600-048X.2013.00098.x〉
Journal of Avian Biology, Wiley, 2013, 44 (5), pp.451-460. ⟨10.1111/j.1600-048X.2013.00098.x⟩
ISSN: 0908-8857
1600-048X
DOI: 10.1111/j.1600-048X.2013.00098.x〉
Popis: 10 pages; International audience; Sexual dimorphism is widely used as an indirect measure of the intensity of sexual selection. It is also a way to evaluate whether different selective pressures act on males and females. Dichromatism, defined as a difference in colouration between males and females, may for instance result from selection for crypsis in females and selection for conspicuousness in males. Here, we conducted a study to investigate whether differential sexual selective pressures might act on the colour traits of two colonial seabird species, the Atlantic puffin Fratercula artica and the black-legged kittiwake Rissa tricactyla. First, we used spectrophotometry and visual modelling to determine whether these presumed monomorphic birds are really monochromatic from an avian perspective (birds and humans have a different vision). Second, we estimated whether some of their colourations have the potential to be sexually or socially selected by determining whether these colourations were related to body condition in males and females, and whether the yellow, orange and red colourations may contain carotenoid pigments. Our results indicated that both species were fully monochromatic from an avian perspective. Moreover, our preliminary analyses suggested that the yellow, orange and red colours of these birds contained carotenoids. Lastly, some indices of colouration were positively linked to estimates of condition. Birds in better condition had redder gape (both species) and bill (puffins). In puffins, the relation between condition and gape colouration was significantly stronger in females than males. By contrast, the size of the gape rosette was larger in males than females. The positive links we found between colour indices and condition, together with the absence of sexual dichromatism, suggest that mutual sexual selection may act in these two species.
Databáze: OpenAIRE