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Local temperature and El Niño Southern Oscillation influence migration phenology of East Asian migratory waterbirds wintering in Poyang,China

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Integrative Zoology 2017年第4期12卷 303-317页

作者： Fei XU Guanhua LIU Yali SI Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijingChina Jiangxi Poyang Lake National Nature Reserve Authority Jiangxi Poyang Lake Wetland Ecosystem National Research StationNanchangChina Resource Ecology Group Wageningen UniversityWageningenthe Netherlands Center for Tropical Research Institute of the Environment and SustainabilityUniversity of CaliforniaLos AngelesCaliforniaUSA

Temperature is a critical factor influencing avian phenology,due to its direct impact on food and water *** previous studies have focused on the timing of spring migration and the arrival of birds at breeding grounds along the European and American flyways;little is known about migration ecology at the wintering sites along the Asian *** linear regression models,this study investigates how local temperature variation and EI Niño Southern Oscillation(ENSO)influences the arrival and departure timing of 9 waterbird species breeding in Mongolia or Siberia and overwintering in Poyang,China from 2002 to *** mainly arrive at Poyang in October and depart for their breeding sites in *** of the 9 species,6 show a strong negative relationship between departure time and overwintering temperature in *** dates also show a negative association with overwintering ENSO and March ENSO for two *** local and large-scale climate indices show no influence on the arrival timing of *** suggest that birds react to the annual variation of overwintering temperature:an earlier departure of waterbirds is facilitated by a warmer overwintering period and vice *** long-term accumulated temperature effect is more pronounced than ENSO and the short-term local temperature *** findings could help quantify the potential impact of global warming on waterbirds.

关键词： annual temperature variation arrival and departure time ENSO local accumulated temperature overwintering birds

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