Revealing the Circadian Rhythm of Taliang Crocodile Newt(Liangshantriton taliangensis) During Breeding Migration Using a Novel Monitoring Technique  

作　　者：Haoqi YU Yuanfei WANG Liuyang HE Yudong ZHU Xiuqin LIN Luyao XIAO Cheng LI Jianping JIANG Feng XIE 

机构地区：[1]CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province,Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu 610041,Sichuan,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]College of Life Sciences,Sichuan University,Chengdu 610065,Sichuan,China [4]Mangkang Biodiversity and Ecological Station,Xizang Ecological Safety Monitor Network,Changdu 854500,Tibet,China [5]Open Laboratory of Shimian Research Center of Giant Panda Small Population Conservation and Rejuvenation and Liziping Giant Panda′s Ecology and Conservation Observation and Research Station of Sichuan Province,Sichuan Liziping National Nature Reserve,Ya′an 625000,Sichuan,China

出　　处：《Asian Herpetological Research》2023年第3期227-236,共10页亚洲两栖爬行动物研究（英文版）

基　　金：supported by the National Key Programme of Research and Development,Ministry of Science and Technology(No.2022YFF1301401);the National Natural Science Foundation of China(No.32170428);Research on monitoring technology system of amphibians and reptile in national parks(Research project of the National Park Research Institute);China Biodiversity Observation Networks(Sino BON-Amphibian and Reptile);the Species Conservation Project of Sichuan Liziping National Nature Reserve(2022).

摘　　要：Many animals migrate during the breeding season.It is important to study the patterns of breeding migration of wild animals,especially rare and endangered species.However,current data acquisition methods are too coarse and imprecise for investigating the circadian rhythms of migrations in amphibians.Based on the frustrated total reflection image(FTRI),we developed a new device and recorded the precise migration time of an endangered salamander,Liangshantriton taliangensis.During the breeding period,a total of 33 individuals were effectively recorded.Analysis of the data indicated that the circadian rhythm of breeding migration in L.taliangensis was bimodal,and migration mainly occurred from 05:00 to 13:00(81.82%of the total migration records).The average relative activity intensity index(RAI)of breeding migration peaked in the temperature range of 14.0–16.0°C.With increased average relative air humidity,the activity intensity first increased and then decreased,reaching a peak in the humidity range of 91.0%–97.0%.These results demonstrate that our new device is a viable and accurate method for recording the migration time of target species.It is important to reveal the breeding migration pattern of L.taliangensis,which is important for the conservation of this species.Meanwhile,this new device can be used for field monitoring and conservation studies of amphibians,reptiles and other animals.

关 键 词：diel pattern frustrated total reflection image Liangshantriton taliangensis new device weather factors 

分 类 号：Q958[生物学—动物学]