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tern migration update |
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Last year, we re-caught 8 arctic terns, which we had equipped with geolocators in 2012. Tim van Oosten has written a master student report on the results. This figure shows the main result from the report. Panel A is the south-bound migration, panel B is the north-bound migration. Between 3 and 25 Novembrm the terns arrived at their wintering grounds near Antarctica, Departure north happened between 3 and 24 April. On their way north the birds follow the trade winds: easterly winds on the southern hemisphere and westerly winds on the northern hemisphere. Thomas Zaw is a new student continuing to analyse the data, while Maarten is going to a Kongsfjorden workshop between 10 and 17 March to learn more about food availability during the summer season. Recent articles about arctic tern studies with geolocators can be found here: Egevang et al. (2010) Tracking of arctic terns Sterna paradisaea reveals longest animal migration. PNAS 107: 2078-2081 [download] Fijn et al. (2013) Arctic Terns Sterna paradisaea from The Netherlands migrate record distances across three oceans to Wilkes Land,East Antarctica. ARDEA 101: 3-12 [download] McKnight et al. (2013) Stepping stone pattern in Pacific Arctic tern migration reveals the importance of upwelling areas. Marine Ecology Progress Series 491: 253-264 [download] |
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