Temporal variability in a multicomponent trait: nuptial coloration of female two-spotted gobies
نویسندگان
چکیده
P. Andreas Svensson, Christophe Pélabon, Jonathan D. Blount, Elisabet Forsgren, Bjørn Bjerkeng, and Trond Amundsen Department of Biology, Norwegian University of Science and Technology, N-7491 Trondheim, Norway, Department of Biology, Centre for Conservation Biology, Norwegian University of Science and Technology, N-7491 Trondheim, Norway, Centre for Ecology and Conservation, School of Biosciences, University of Exeter, Cornwall Campus, Penryn, TR10 9EZ, UK, and Nofima AS, Nofima Marine, N-6600 Sunndalsøra, Norway
منابع مشابه
Chromatic interaction between egg pigmentation and skin chromatophores in the nuptial coloration of female two-spotted gobies.
In two-spotted gobies (Gobiusculus flavescens Fabricius 1779), females develop an orange belly as they approach sexual maturity. Bright belly coloration is preferred by males and has been suggested to act as a female ornament. This coloration is unusual in that it originates partly from pigmentation of the abdominal skin but also from strongly pigmented gonads directly visible through the skin....
متن کاملDevelopmental effects of environmental light on male nuptial coloration in Lake Victoria cichlid fish
Background Efficient communication requires that signals are well transmitted and perceived in a given environment. Natural selection therefore drives the evolution of different signals in different environments. In addition, environmental heterogeneity at small spatial or temporal scales may favour phenotypic plasticity in signaling traits, as plasticity may allow rapid adjustment of signal ex...
متن کاملFemale nuptial coloration and its adaptive significance in a mutual mate choice system
Adaptive female coloration is likely to occur when males largely invest into reproduction or variance of quality between potential mating partners is high. Although recent studies have shown male choosiness of female traits, little is known about the extent to which female ornamentation signals benefits to males. Female ornamentation might signal individual quality information and thus might be...
متن کاملUse of biochemical indices for analysis of growth in juvenile two-spotted gobies (Gobiusculus flavescens) of the Baltic Sea
multiple biochemical measurements were evaluated as an indirect measure of juvenile fish growth rate. Juvenile two-spotted gobies, Gobiusculus flavescens (Fabricius), caught in the Kiel Bight, were incubated in a temperature gradient table at 7 different temperatures ranging from 9 to 22.7°C for up to 28 days and sampled weekly. rnA/dnA ratios (rnA/dnA), protein and lipid amounts were measured ...
متن کاملDisruptive sexual selection on male nuptial coloration in an experimental hybrid population of cichlid fish.
Theory suggests that genetic polymorphisms in female mating preferences may cause disruptive selection on male traits, facilitating phenotypic differentiation despite gene flow, as in reinforcement or other models of speciation with gene flow. Very little experimental data have been published to test the assumptions regarding the genetics of mate choice that such theory relies on. We generated ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008