Effects of temperature acclimation on body mass and energy budget in the Chinese bulbul Pycnonotus sinensis
作者单位：School of Life and Environmental SciencesWenzhou University Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection
会议名称：《浙江省动物学会第十二届会员代表大会暨学术讨论会》
会议日期：2013年
学科分类：0907[农学-林学] 090705[农学-野生动植物保护与利用] 09[农学]
关 键 词：Body mass Energy budget Pycnonotus sinensis Temperature acclimation
摘 要：Chinese bulbuls(Pycnonotus sinensis) are small passerine birds that inhabit areas of central,southern and eastern *** observations suggest that free-living individuals of this species may change their food intake in response to seasonal changes in ambient temperature. In the present study,we randomly assigned Chinese bulbuls to either a 30℃or 10℃group,and measured their body mass(BM),body temperature,gross energy intake(GEI),digestible energy intake(DEI),and the length and mass of their digestive tracts,over 28 days of acclimation to these *** predicted,birds in the 30℃group had lower body mass,GEI *** relative to those in the 10℃*** length and mass of the digestive tract was also lower in the 30℃group and trends in these parameters were positively correlated with those in BM,GEI and DEI. These results suggest that Chinese bulbuls reduce their absolute energy demands at relatively high temperatures by decreasing their body mass,GEI and DEI,and digestive tract size.