Yasmeen Erritouni

University of Washington Seattle | UW · Department of Biology

In animals, color signals that convey information about quality are often associated with costs linked to the expression of coloration and may therefore be honest signals of sender quality. Honest indicators are often seen in sexual signals that are used by males to advertise quality to females. Carotenoid and pterin pigments are responsible for ye...

JNDs (ΔS) of Anolis sagrei on different surfaces in a forest shade illuminant as viewed by an ultraviolet-sensitive bird, a violet-sensitive bird, and a conspecific lizard. (DOCX)

Compiled data from the traits presented in Table 3. (XLSX)

JNDs (ΔS) of Anolis sagrei on different surfaces in a D65 illuminant as viewed by an ultraviolet-sensitive bird, a violet-sensitive bird, and a conspecific lizard. (DOCX)

SVL and mass of male pairs used in female preference trials. Range of difference, mean difference, and standard deviation is also presented. Numbers associated with males are those assigned to them throughout all experiments. (DOCX)

The spectral outputs used to calculate JNDs (ΔS) and red chroma. (XLSX)

The maternal allocation of carotenoids to eggs has been widely documented and manipulated. However, it is often assumed that the sole adaptive value of this allocation is to increase offspring fitness. Because carotenoids can be pro-oxidants or antioxidants depending on their concentrations and their chemical environment (i.e. presence of other ant...

Techniques using the morphology of fossilized melanosomes make it possible to reconstruct the colours of melanin-based integumentary patterns and thus provide insight into the ecology and behaviour of extinct organisms. We studied a well-preserved specimen of the Cretaceous bird Eoconfuciusornis to shed light on its palaeobiology. Using data taken...