Environmental stress affects the expression of a carotenoid-based sexual trait in male zebra finches
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چکیده
منابع مشابه
Environmental stress affects the expression of a carotenoid-based sexual trait in male zebra finches.
Abiotic factors including thermal stress are suggested to exert constrains on sexual ornaments through trade-offs between sexual displays and physiological functions related to self-maintenance. Given the health properties of carotenoid pigments, carotenoid-based ornaments offer a relevant context in which to investigate the effect of environmental stress, such as ambient temperature, on the pr...
متن کاملDevelopmental stress increases reproductive success in male zebra finches.
There is increasing evidence that exposure to stress during development can have sustained effects on animal phenotype and performance across life-history stages. For example, developmental stress has been shown to decrease the quality of sexually selected traits (e.g. bird song), and therefore is thought to decrease reproductive success. However, animals exposed to developmental stress may com...
متن کاملAvailability of non-carotenoid antioxidants affects the expression of a carotenoid-based sexual ornament.
Carotenoids are responsible for much of the yellow, orange and red pigmentation in the animal kingdom, and the importance of such coloration as an honest signal of individual quality has received widespread attention. In particular, owing to the multiple roles of carotenoids as pigments, antioxidants and immunostimulants, carotenoid-based coloration has been suggested to advertise an individual...
متن کاملCarotenoid modulation of immune function and sexual attractiveness in zebra finches.
One hypothesis for why females in many animal species frequently prefer to mate with the most elaborately ornamented males predicts that availability of carotenoid pigments is a potentially limiting factor for both ornament expression and immune function. An implicit assumption of this hypothesis is that males that can afford to produce more elaborate carotenoid-dependent displays must be healt...
متن کاملAge at deafening affects the stability of learned song in adult male zebra finches.
Male zebra finches (Taeniopygia guttata) master the imitation of a song model 80-90 d after hatching and retain it with little change for the rest of their lives. Acquisition and maintenance of this imitation require intact hearing. A previous report showed that male zebra finches deafened as adults start to lose some of the acoustic and temporal features of their song a few weeks after deafeni...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2007
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.005496