Brightness of melanin-based plumage coloration is a cue to oxidative stress in Himalayan Black Bulbuls(Hypsipete leucocephalus nigerrimus)

作     者：Hsin-Yi Hung Shou-Hsien Li 

作者机构：Department of Life scienceNational Taiwan Normal University 

出 版 物：《Chinese Birds》 (中国鸟类（英文版）)

年 卷 期：2015年第6卷第4期

页      面：270-275页

核心收录：

学科分类：090603[农学-临床兽医学] 09[农学] 0906[农学-兽医学] 

基　　金：founded by the Population Genetics Lab Department of Life Science National Taiwan Normal University 

主　　题：Himalayan Black Bulbuls Hypsipetes leucocephalus nigerrimus Melanin-based trait Oxidative stress 

摘      要：Background: Melanin?based coloration is often found to be associated with variations in physiological and behavio?ral traits that are essential in avian ***,the function of melanin?based traits to their bearers has been investigated less than that of carotenoid?based *** is commonly believed that expression of melanin?based pigmentation is genetically ***,whether it could be modulated by physical condition has remained *** this study,we demonstrate that the level of melanin?based plumage pigmentation could be nega?tively correlated with an individual s oxidative stress ***: In this study,we used two groups of Black Bulbuls(Hypsipetes leucocephalus nigerrimus) obtained from a pet?shop in 2010 and 2011 to examine the correlation between the melanin?based plumage coloration and the ratio of lymphocytes to heterocytes,which is an indicator of the oxidative stress experienced by an ***: We found a negative correlation between oxidative stress levels and expression of melanin?based pigmen?tation on the breast and scapular feathers,but the correlation only appeared in the 2011 group,individuals of which had higher oxidative stress level and brighter plumage(*** melanins) than those of the 2010 ***: Our data suggest that melanin?based plumage could reflect an individual s physical condition in certain ***,melanin?based plumage coloration could have a function in Himalayan Black Bulbuls communication.