首页|Effects of temperature acclimation on body mass and energy budget in the Chinese bulbul Pycnonotus sinensis
Effects of temperature acclimation on body mass and energy budget in the Chinese bulbul Pycnonotus sinensis
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国家科技期刊平台
NETL
NSTL
万方数据
维普
Chinese bulbuls (Pycnonotus sinensis) are small passerine birds that inhabit areas of central,southern and eastern China.Previous 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 at these temperatures.As predicted,birds in the 30 ℃ group had lower body mass,GEI and DEI relative to those in the 10 ℃ group.The length and mass of the digestive tract was also lower in the 30 ℃ group and trends in these parameters were positively correlated with BM,GEl and DEI.These results suggest that Chinese bulbuls reduced their absolute energy demands at relatively high temperatures by decreasing their body mass,GEI and DEI,and digestive tract size.
Body massEnergy budgetPycnonotus sinensisTemperature acclimation
Yu-Nan WU、Lin LIN、Yu-Chao XIAO、Li-Meng ZHOU、Meng-Si WU、Hui-Ying ZHANG、Jin-Song LIU
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School of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
Zhejiang Provincial Key Lab for Subtropical Freshwater Environment and Marine Biological Resources Protection, Wenzhou 325035, China
Institute of Applied Ecology, Wenzhou University, Wenzhou 325035, China
This study was supported by the National Natural Science Foundation of China‘Xinmiao' Project in Zhejiang Province
国家科技期刊平台
NSTL
万方数据
维普
