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

Integrative Zoology 2022年第5期17卷 715-730页

作者： Chunrong MI Xinhai LI Falk HUETTMANN Oleg GOROSHKO Yumin GUO School of Ecology and Nature Conservation Beijing Forestry UniversityChina Institute of Zoology Chinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina EWHALE Lab Department of Biology and WildlifeInstitute of Arctic BiologyUniversity of Alaska-FairbanksFairbanksUSA Daursky State Nature Biosphere Reserve Institute of Nature ResourcesEcology and Cryology RASRussia

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 *** 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 *** 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 *** 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

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