Time and energy minimization strategy codetermine the loop migration of demoiselle cranes around the Himalayas  

作　　者：Chunrong MI Xinhai LI Falk HUETTMANN Oleg GOROSHKO Yumin GUO 

机构地区：[1]School of Ecology and Nature Conservation,Beijing Forestry University,China [2]Institute of Zoology,Chinese Academy of Sciences,Beijing,China [3]University of Chinese Academy of Sciences,Beijing,China [4]EWHALE Lab,Department of Biology and Wildlife,Institute of Arctic Biology,University of Alaska-Fairbanks,Fairbanks,USA [5]Daursky State Nature Biosphere Reserve,Institute of Nature Resources,Ecology and Cryology RAS,Russia

出　　处：《Integrative Zoology》2022年第5期715-730,共16页整合动物学（英文版）

基　　金：funding is from the National Natural Science Foundation of China awarded to Yumin Guo(grant no.31770573 and no.31570532);supported by Alliance of International Science Organization(ANSO)(Project ID:ANSO-CR-KP-2020-08)。

摘　　要：Tens of thousands of demoiselle cranes’crossing the Himalayas to the Indian subcontinent have been reported for decades,but their exact spring migration route remained a mystery until our previous study found they made a detour in spring along the western edge of the Himalayas and crossed the Mongolian Plateau to their breeding areas based on satellite telemetry of 3 birds.To corroborate the loop migration pattern and explore whether demoiselle crane’s loop migration route is shaped by time-and energy-minimization strategies in spring and autumn and how the temporal and spatial variation of environmental conditions contribute to crane’s selection of migration routes,we tracked 11 satellite-tagged demoiselle cranes from their breeding area in China and Russia,simulated 2 pseudo migration routes,and then compared the environmental conditions,time,and energy cost between true and pseudo routes in the same season.Results show that demoiselles’spring migration obeyed time-minimization hypothesis,avoiding the colder Qinghai-Tibet Plateau,benefited by abundant food and higher thermal and orographic uplift along the route;autumn migration follows energy-minimization hypothesis with the shorter route.Our research will contribute to uncover the mechanical reasons why demoiselle crane avoids crossing the giant barrier of the Himalayas in spring,and shapes a loop migration route.

关 键 词：Anthropoides virgo barrier cross loop migration strategy satellite tracking the Himalayas 

分 类 号：Q95[生物学—动物学]