Metabolic and microbial changes in light-vented bulbul during recent northward range expansion  

作　　者：Yun Wu Ying Xiong Yanzhu Ji Yalin Cheng Qianghui Zhu Xiaolu Jiao Yongbin Chang Na Zhao Jing Yang Fumin Lei Gang Song 

机构地区：[1]Key Laboratory of Zoological Systematics and Evolution,Institute of Zoology,Chinese Academy of Sciences,Beijing 100101,China [2]College of Life Science,University of Chinese Academy of Sciences,Beijing 100049,China [3]Department of Zoology,College of Life science,Sichuan Agricultural University,Ya'an 625099,Sichuan,China [4]Henan Engineering Research Center of Bird-Related Outage,Zhengzhou Normal University,Zhengzhou 450044,China [5]School of Ecology and Environment,Anhui Normal University,Wuhu 241002,Anhui,China [6]School of Environmental Science and Engineering,Shaanxi University of Science and Technology,Xian 710021,China [7]Centerfor Excellence inAnimal Evolutionand Genetics,Chinese Academy of Sciences,Kunming 650223,China

出　　处：《Current Zoology》2024年第1期24-33,共10页动物学报（英文版）

基　　金：funded by National Natural Science Foundation of China(31471991)to G.S.;the National Key Research and Development Program of China(2022YFC2601601);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA19050202)to F.L.,and the National Natural Science Foundation of China(32000295)to J.Y..

摘　　要：Endotherms recently expanding to cold environments generally exhibit strong physiological acclimation to sustain high body temperature.During this process,gut microbes likely play a considerable role in host physiological functions,including digestion and thermogenesis.The light-vented bulbul Pycnonotus sinensis represents one such species.It used to be restricted to the Oriental realm but expanded its distribution range north to the Palearctic areas during the past few decades.Here,we explored the seasonal dynamics of the resting metabolic rate(RMR)and microbiota for local and newly colonized populations of the species.Our results showed that the mass-adjusted RMR and body mass were pos-itively correlated with latitude variations in both seasons.Consistently,the gut microbiota showed a corresponding variation to the northern cold environments.In the two northern populations,the alpha diversity decreased compared with those of the two southern populations.Significant differences were detected in dominant phyla,such as Firmicutes,Bacteroidetes,Proteobacteria,and Desulfobacterota in both seasons.The core microbiota showed geographic differences in the winter,including the elevated relative abundance of 5 species in northern populations.Finally,to explore the link between microbial communities and host metabolic thermogenesis,we conducted a correlation analysis between microbiota and mass-adjusted RMR.We found that more genera were significantly correlated with mass-adjusted RMR in the wintering season compared to the breeding season(71 vs.23).These results suggest that microbiota of the lighted-vented bulbul linked with thermogenesis in diversity and abundance under northward expansion.

关 键 词：BIRD body mass gutmicrobiota RMR SEASON 

分 类 号：Q95[生物学—动物学]