Migratory movements and wintering areas of Leach’s Storm-Petrels tracked using geolocators

Ingrid L. Pollet; April Hedd; Philip D. TaylorWilliam A. MontevecchiDave Shutler

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Migratory movements and wintering areas of Leach’s Storm-Petrels tracked using geolocators

机译：Migratory movements and wintering areas of Leach’s Storm-Petrels tracked using geolocators

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Accumulating evidence suggests that Atlantic populations of Leach’s Storm-Petrels (Oceanodroma leucorhoa) are experiencing significant declines. To better understand possible causes of these declines, we used geolocators to documentmovements of these small (~50-g) pelagic seabirds during migration and the non-breeding period.During 2012 and 2013, movement tracks were obtained fromtwo birds that traveled in a clock-wise direction from two breeding colonies in eastern Canada (Bon Portage Island, Nova Scotia, and Gull Island, Newfoundland) to winter in tropical waters. The bird from Bon Portage Island started its migration towards Cape Verde in October, arrived at its wintering area off the coast of eastern Brazil in January, and started migration back to Nova Scotia in April. The bird from Gull Island staged off Newfoundland in November and then again off Cape Verde in January before its geolocator stopped working. Movements of Leach’s Storm-Petrels in our study and those of several other procellariiforms during the non-breeding period are likely facilitated by the prevailing easterly trade winds and the Antilles and Gulf Stream currents. Although staging and wintering areas used by Leach’s Storm-Petrels in our study were characterized by low productivity, theWest Africa and northeastern Brazilian waters are actively used by fisheries and discards can attract Leach’s Storm-Petrels. Our results provide an initial step towards understanding movements of Leach’s Storm-Petrels during the non-breeding period, but further tracking is required to confirm generality of their migratory routes, staging areas, and wintering ranges.

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《Journal of Field Ornithology: A Journal of Ornithological Investigation》 |2014年第3期|321-328|共8页
作者
Ingrid L. Pollet; April Hedd; Philip D. TaylorWilliam A. MontevecchiDave Shutler;
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作者单位

Department of Biology, Acadia University, Wolfville, Nova Scotia, B4P 2R6 Canada;

Cognitive and Behavioural Ecology, Departments of Psychology and Biology, Memorial University of Newfoundland, St John’s, Newfoundland, A1B 3X9 Canada;

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收录信息美国《科学引文索引》(SCI);
原文格式 PDF
正文语种英语
中图分类鸟纲;
关键词
archival light logger; migration; Oceanodroma leucorhoa; seabird tracking;

Migratory movements and wintering areas of Leach’s Storm-Petrels tracked using geolocators

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