Age-Related Differences in a Carotenoid-Based Coloration Trait are Due to Within-Individual Changes in Great Tits Parus major

Adult birds usually display brighter plumage coloration than younger individuals. This difference may be either due to selection against less coloured yearlings or to an increase in coloration after their first complete moult. In this study, we examined age-related differences in carotenoid-based yellow ventral coloration of Great Tits Parus major. Cross-sectional analyses at the population level showed that older males are in general greener and more saturated in colour than yearling individuals. Longitudinal analyses using birds captured in subsequent seasons confirmed within-individual changes in coloration with age. Such increase in coloration might be the result of the development of better foraging skills with age- and hence, the individual ability to obtain enough carotenoid-rich sources at the time of moult-, or consequence of other factors indirectly associated with age. However, we cannot rule out the possibility that other factors (such as directional selection against less coloured individuals) operate additionally at the population level.

[1]  B. Mautz,et al.  Sexual selection in animals , 2011 .

[2]  J. Lifjeld,et al.  Variation in plumage colour of the Great tit Parus major in relation to habitat, season and food , 2009 .

[3]  C. Isaksson,et al.  Sex and age differences in reflectance and biochemistry of carotenoid‐based colour variation in the great tit Parus major , 2008 .

[4]  Pierre-Paul Bitton,et al.  Age-related differences in plumage characteristics of male tree swallows Tachycineta bicolor: hue and brightness signal different aspects of individual quality , 2008 .

[5]  A. Jansen.  Acquisition of foraging skills by Heron Island Silvereyes Zosterops later alis chlorocephala , 2008 .

[6]  Negro,et al.  Two pieces of information in a single trait? The yellow breast of the great tit (Parus major) reflects both pigment acquisition and body condition , 2008 .

[7]  S. Hinsley,et al.  Carotenoid plumage hue and chroma signal different aspects of individual and habitat quality in tits , 2007 .

[8]  J. Figuerola,et al.  Serins with intermediate brightness have a higher survival in the wild , 2007 .

[9]  J. Quesada,et al.  Comparing plumage colour measurements obtained directly from live birds and from collected feathers: the case of the great tit Parus major , 2006 .

[10]  B. Kempenaers,et al.  Age differences in blue tit Parus caeruleus plumage colour: within-individual changes or colour-biased survival? , 2006 .

[11]  T. Uller,et al.  Parental effects on carotenoid-based plumage coloration in nestling great tits, Parus major , 2006, Behavioral Ecology and Sociobiology.

[12]  P. Fitze,et al.  No evidence for survival selection on carotenoid‐based nestling coloration in great tits (Parus major) , 2006, Journal of evolutionary biology.

[13]  J. Quesada,et al.  Absolute and relative signals: a comparison between melanin- and carotenoid-based patches , 2006 .

[14]  J. Figuerola,et al.  Seasonal changes in carotenoid‐ and melanin‐based plumage coloration in the Great Tit Parus major , 2005 .

[15]  C. Brandt.  Age and hunting success in the brown pelican: influences of skill and patch choice on foraging efficiency , 1984, Oecologia.

[16]  R. Montgomerie,et al.  Assortative mating by carotenoid-based plumage colour: a quality indicator in American goldfinches, Carduelis tristis , 2003, Naturwissenschaften.

[17]  F. Moore,et al.  AGE-RELATED DIFFERENCES IN FORAGING EFFICIENCY, MOLT, AND FAT DEPOSITION OF GRAY CATBIRDS PRIOR TO AUTUMN MIGRATION , 2003 .

[18]  J. Figuerola,et al.  Plumage coloration and nutritional condition in the great tit Parus major: the roles of carotenoids and melanins differ , 2003, Naturwissenschaften.

[19]  P. Fitze,et al.  Proximate mechanisms of variation in the carotenoid‐based plumage coloration of nestling great tits (Parus major L.) , 2003, Journal of evolutionary biology.

[20]  D. Fallin,et al.  Parental Effects , 2001 .

[21]  A. Møller,et al.  Growth conditions affect carotenoid-based plumage coloration of great tit nestlings , 2000, Naturwissenschaften.

[22]  G. Hill,et al.  Differential effects of endoparasitism on the expression of carotenoid- and melanin-based ornamental coloration , 2000, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[23]  A. Møller,et al.  Carotenoid-dependent signals: indicators of foraging efficiency, immunocompetence or detoxification ability? , 2000 .

[24]  V. Olson,et al.  Costly sexual signals: are carotenoids rare, risky or required? , 1998, Trends in ecology & evolution.

[25]  J. C. Senar,et al.  A funnel trap for the capture of tits , 1997 .

[26]  J. Veiga,et al.  Nutritional constraints determine the expression of a sexual trait in the house sparrow, Passer domesticus , 1996, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[27]  K. Allander,et al.  INTRASPECIFIC VARIATION IN PLUMAGE COLORATION REFLECTS IMMUNE-RESPONSE IN GREAT TIT (PARUS-MAJOR) MALES , 1995 .

[28]  G. Hill.  Seasonal Variation in Circulating Carotenoid Pigments in the House Finch , 1995 .

[29]  R. Montgomerie,et al.  Plumage colour signals nutritional condition in the house finch , 1994, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[30]  L. Jenni,et al.  Moult and Ageing of European Passerines , 1994 .

[31]  A. Gosler.  The Great Tit , 1993 .

[32]  A. Desrochers.  Age and foraging success in European blackbirds: variation between and with individuals , 1992, Animal Behaviour.

[33]  G. Hill.  Proximate basis of variation in carotenoid pigmentation in male house finches , 1992 .

[34]  B. Enoksson.  Age- and sex-related differences in dominance and foraging behaviour of nuthatches Sitta europaea , 1988, Animal Behaviour.

[35]  A. Maccarone.  Age-class differences in the use of food sources by European Starlings , 1987 .

[36]  V. Partali,et al.  Carotenoids in food chain studies—II. The food chain of Parus SPP. Monitored by carotenoid analysis☆ , 1987 .

[37]  L. Sevensson.  Identification Guide to European Passerines , 1975 .