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Lineages differentiation and population structure of the light-vented bulbul pycnonotus sinensis in China based on mitochondrial DNA and microsatellite analysis

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Integrative Zoology 2011年第4期6卷 387-398页

作者： Yuchun WU Hui LI Fasheng ZOU Yucheng HSU South China Institute of Endangered Animals GuangzhouChina Guangzhou Work Technical School for High School Students GuangzhouChina Institute of Natural Resources National Dong Hwa UniversityHualienTaiwanChina

The light-vented bulbul pycnonotus sinensis is a small resident passerine that is found widely in central and south China,North Vietnam,and some East Asian islands,including Hainan,Taiwan and the Ryukyu *** subspecies status has been under considerable debate.A total of 10 subspecies have been proposed,but only 4 are widely recognized,including 1 continental taxon,***,and 3 insular subspecies:***,*** and *** mitochondrial DNA genes and 9 microsatellite loci were used to investigate the genetic divergence of this species,to identify the evolutionary status of 2 insular subspecies(*** and ***)and to uncover probable historical causes that shaped *** results reveal that *** has diverged significantly from the other 2 subspecies because of a substantial time of isolation for populations on Taiwan *** was no significant genetic differentiation between *** and *** notable morphological difference in *** might be attributed to a rapid,recent adaptation to the tropical environment of Hainan *** low genetic divergence between *** and *** might result from a recent divergence or gene flow between *** insular subspecies of light-vented bulbul populations might have diverged recently from their continental relatives through a complex evolution history owing to island isolation,ecological isolation,and possibly even *** *** and *** should be considered important conservation units because of their morphological and genetic distinctiveness.

关键词： island isolation microsatellites mitochondrial DNA pycnonotus sinensis subspecies divergence

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Effects of temperature acclimation on body mass and energy budget in the Chinese bulbul pycnonotus sinensis

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Zoological Research 2014年第1期35卷 33-41页

作者： Yu-Nan WU Lin LIN Yu-Chao XIAO Li-Meng ZHOU Meng-Si WU Hui-Ying ZHANG Jin-Song LIU School of Life and Environmental Sciences Wenzhou University Zhejiang Provincial Key Lab for Subtropical Freshwater Environment and Marine Biological Resources Protection Institute of Applied Ecology Wenzhou University

Chinese bulbuls （pycnonotus sinensis） are small passerine birds that inhabit areas of central, southern and eastern China. Previous observations suggest that flee-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 ~C or 10 ~C group, and measured their body mass （BM）, body temperature, gross energy intake （GEl）, 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.

关键词： Body mass Energy budget pycnonotus sinensis Temperature acclimation

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Effect of food restriction on the energy metabolism of the Chinese bulbul（pycnonotus sinensis）

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Zoological Research 2015年第2期36卷 79-87页

作者： Qing-Jian LIANG Lei ZHAO Jia-Qi WANG Qian CHEN Wei-Hong ZHENG Jin-Song LIU School of Life and Environmental Sciences Wenzhou University Wenzhou 325035 China Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection Wenzhou 325035 China Institute of applied ecology Wenzhou University Wenzhou 325035 China

Food resources play an important role in the regulation of animals’ physiology and behavior. We investigated the effect of short-term food restriction on metabolic thermogenesis of Chinese bulbuls（pycnonotus sinensis） by measuring changes in body mass, body fat, basic metabolic rate（BMR）, and organ mass of wild-caught Chinese bulbuls from Wenzhou, China. Short-term food restriction induced a significant decrease in body mass and body fat but body mass returned to normal levels soon after food was no longer restricted. Food restriction caused a significant reduction in BMR after 7 days（P〈0.05）, which returned to normal levels after food restriction ceased. Log total BMR was positively correlated with log body mass（r2=0.126, P〈0.05）. The dry masses of livers and the digestive tract were higher in birds that had been subject to temporary food restriction than in control birds and those subject to continual food restriction（P〈0.001 and P〈0.05, respectively）. There was also significant differences in the dry mass of the lungs（P〈0.05）, heart（P〈0.01）, and spleen（P〈0.05） in birds subject to short-term food restriction compared to control birds and those subject to continual food restriction. BMR was positively correlated with body and organ（heart, kidney and stomach） mass. These results suggest that the Chinese bulbul adjusts to restricted food availability by utilizing its energy reserves, lowering its BMR and changing the weight of various internal organs so as to balance total energy requirements. These may all be survival strategies that allow birds to cope with unpredictable variation in food abundance.

关键词： Basic metabolic rate Energy metabolism Food restriction pycnonotus sinensis

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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 b...

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浙江省动物学会第十二届会员代表大会暨学术讨论会

作者： Wu Yunan Lin Lin Xiao Yuchao Zhou Limeng Wu Mengsi Weihong Liu Jinsong School of Life and Environmental Sciences Wenzhou University Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection

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.

关键词： Body mass Energy budget pycnonotus sinensis Temperature acclimation

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Seasonal phenotypic flexibility of body mass,organ masses,and tissue oxidative capacity and their relationship to BMR in Chinese bulbuls

Seasonal phenotypic flexibility of body mass,organ masses,an...

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浙江省动物学会第十二届会员代表大会暨学术讨论会

作者： Zheng Weihong Liu Jinsong School of Life and Environmental Sciences Wenzhou University Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection

Survival of small birds in fluctuating environments is facilitated by seasonal metabolic and morphological *** bulbuls pycnonotus sinensis show winter increases in basal metabolic rate(BMR),nutritional organ masses,and liver and muscle cellular aerobic capacity relative to *** this study,we build on these previous studies by measuring seasonal adjustments in body mass(Mb),BMR,nutritional organ masses and several physiological, biochemical and hormonal markers over the entire annual cycle in wild-trapped Chinese bulbuls from Wenzhou,and we analyzed the relationships between variation in organ masses and cellular aerobic capacity and variation in BMR in individual birds.M and BMR were higher in spring (March to May) and winter(December to February) than in summer(June to August).The dry masses of several nutritional organs and mitochondrial protein content,state-4 respiration and cytochrome c oxidase(COX) activity in liver and muscle were all heightened in winter relative to other *** addition,heart and pectoral muscle,but not nutritional organ,dry masses and biochemical markers of cellular aerobic capacity in liver and muscle were positively correlated with *** triiodothyronine(T) concentration was higher in winter and spring than summer and autumn,and was positively correlated with BMR,mitochondrial protein content, state-4 respiration and COX activity in liver and *** results suggest that Chinese bulbuls rely on seasonal changes in nutritional organ masses as well as liver and muscle cellular aerobic capacity more than changes in skeletal muscle mass to promote seasonal metabolic flexibility.T appears to promote these seasonal thermoregulatory adjustments.

关键词： pycnonotus sinensis seasonal acclimatization phenotypic flexibility basal metabolic rate(BMR) cytochrome c oxidase(COX) state-4 respiration thyroid hormone

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