Carotenoid-based skin ornaments reflect foraging propensity in a seabird, Sula leucogaster
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DOI: 10.1098/rsbl.2018.0398
Abstract: Carotenoid-based ornaments are common signalling features in animals. It has long been proposed that such ornaments communicate information about foraging abilities to potential mates. However, evidence linking foraging with ornamentation is largely missing from unmanipulated,… read more here.
Keywords: reflect foraging; sula leucogaster; foraging propensity; carotenoid based ... See more keywords
Influence of haemosporidian infection status on structural and carotenoid-based colouration in the blue tit Cyanistes caeruleus
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DOI: 10.1111/jav.01840
Abstract: Hypotheses postulating parasite-mediated mate choice intrinsically assume that parasitic infections deteriorate the quality of male ornamentation. Although this assumption has often been studied in ... read more here.
Keywords: carotenoid based; haemosporidian infection; structural carotenoid; status structural ... See more keywords
Testing the resource trade-off hypothesis for carotenoid-based signal honesty using genetic variants of the domestic canary
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DOI: 10.1242/jeb.188102
Abstract: ABSTRACT Carotenoid-based coloration in birds is widely considered an honest signal of individual condition, but the mechanisms responsible for condition dependency in such ornaments remain debated. Currently, the most common explanation for how carotenoid coloration… read more here.
Keywords: trade hypothesis; resource trade; carotenoid based;