Testosterone and carotenoids: an integrated view of trade‐offs between immunity and sexual signalling

A Peters - Bioessays, 2007 - Wiley Online Library
Allocation tradeoffs with the immune system can enforce honesty on sexual signals that act
as indicators of individual quality. Such tradeoffs can be brought about by (1) the dual action …

The potential utility of carotenoid‐based coloration as a biomonitor of environmental change

C Peneaux, PM Hansbro, AS Griffin - Ibis, 2021 - Wiley Online Library
In the past 30 years, carotenoid‐based animal signals have been an intense focus of
research because they can potentially broadcast an honest reflection of individual …

What does carotenoid-dependent coloration tell? Plasma carotenoid level signals immunocompetence and oxidative stress state in birds–a meta-analysis

MJP Simons, AA Cohen, S Verhulst - 2012 - journals.plos.org
Mechanisms maintaining honesty of sexual signals are far from resolved, limiting our
understanding of sexual selection and potential important parts of physiology. Carotenoid …

Growing in Cities: An Urban Penalty for Wild Birds? A Study of Phenotypic Differences between Urban and Rural Great Tit Chicks (Parus major)

C Biard, F Brischoux, A Meillère, B Michaud… - Frontiers in Ecology …, 2017 - frontiersin.org
Urban sprawl is associated with deep and intense modifications of the natural habitats of
wild vertebrates. Although, many species are unable to cope with such an environment, a …

Moult speed affects structural feather ornaments in the blue tit

M Griggio, L Serra, D Licheri… - Journal of …, 2009 - academic.oup.com
Growing evidence suggests that structural feather colours honestly reflect individual quality
or body condition but, contrary to pigment‐based colours, it is not clear what mechanism …

Distinguishing between male and territory quality: females choose multiple traits in the pied flycatcher

PM Sirkiä, T Laaksonen - Animal Behaviour, 2009 - Elsevier
To understand how sexual selection works, it is important to distinguish between the
mechanisms underlying mating success. One of the basic questions is to differentiate …

Sexual selection, multiple male ornaments, and age-and condition-dependent signaling in the common yellowthroat

CR Freeman-Gallant, CC Taff, DF Morin, PO Dunn… - …, 2010 - academic.oup.com
In many animals, sexual selection has resulted in complex signaling systems in which males
advertise aspects of their phenotypic or genetic quality through elaborate ornamentation and …

Anthropogenic noise is associated with telomere length and carotenoid-based coloration in free-living nestling songbirds

ML Grunst, AS Grunst, R Pinxten, M Eens - Environmental Pollution, 2020 - Elsevier
Growing evidence suggests that anthropogenic noise has deleterious effects on the
behavior and physiology of free-living animals. These effects may be particularly …

Nanostructural self-assembly of iridescent feather barbules through depletion attraction of melanosomes during keratinization

R Maia, RHF Macedo… - Journal of the Royal …, 2012 - royalsocietypublishing.org
Avian plumage colours are model traits in understanding the evolution of sexually selected
ornamental traits. Paradoxically, iridescent structural colours, probably the most dazzling of …

UV plumage color is an honest signal of quality in male budgerigars

M Griggio, V Zanollo, H Hoi - Ecological Research, 2010 - Springer
Elaborate and colorful feathers are important traits in female mate choice in birds. Plumage
coloration can result from pigments deposited in feathers such as carotenoids and melanins …