Migratory birds modulate niche tradeoffs in rhythm with seasons and life history

• 成果类型: Article
• 署名作者: Yanco, Scott W.; Oliver, Ruth Y.; Iannarilli, Fabiola; Carlson, Ben S.; Heine, Georg; Mueller, Uschi; Richter, Nina; Vorneweg, Bernd; Andryushchenko, Yuriy; Batbayar, Nyambayar; Dagys, Mindaugas; Desholm, Mark; Galtbalt, Batbayar; Gavrilov, Andrey E.; Goroshko, Oleg A.; Ilyashenko, Elena I.; Ilyashenko, Valentin Yu; Mansson, Johan; Mudrik, Elena A.; Natsagdorj, Tseveenmyadag; Nilsson, Lovisa; Sherub, Sherub; Skov, Henrik; Sukhbaatar, Tuvshintugs; Zydelis, Ramunas; Wikelski, Martin; Jetz, Walter; Pokrovsky, Ivan
• 署名单位: Yale University; Yale University; University of California System; University of California Santa Barbara; Max Planck Society; National Academy of Sciences Ukraine; Schmalhausen Institute of Zoology of NASU; Nature Research Center - Lithuania; Russian Academy of Sciences; Russian Academy of Sciences; Saratov Scientific Center of the Russian Academy of Sciences; Severtsov Institute of Ecology & Evolution; Swedish University of Agricultural Sciences; Russian Academy of Sciences; Vavilov Institute of General Genetics; Danish Hydraulic Institute (DHI); University of Konstanz
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-9061
• DOI: 10.1073/pnas.2316827121
• 发表日期: 2024-10-08
• 关键词: ecology; population; environments; EVOLUTION; tracking; water

摘要

Movement is a key means by which animals cope with variable environments. As they move, animals construct individual niches composed of the environmental conditions they experience. Niche axes may vary over time and covary with one another as animals make tradeoffs between competing needs. Seasonal migration is expected to produce substantial niche variation as animals move to keep pace with major life history phases and fluctuations in environmental conditions. Here, we apply a time- ordered principal component analysis to examine dynamic niche variance and covariance across the annual cycle for four species of migratory crane: common crane (Grus nigricollis, n = 9), and white- naped crane (Grus vipio, n = 9). We consider four key niche components known to be important to aspects of crane natural history: crop proportion (preferred foraging habitat), and proximity to water (predator avoidof organism-environment interactions.