Breeding latitude drives individual schedules in a trans-hemispheric migrant bird
Conklin, Jesse R.; Battley, Phil F.; Potter, Murray A.; Fox, James W.. 2010 Breeding latitude drives individual schedules in a trans-hemispheric migrant bird. Nature Communications, 1 (67). 1-6. 10.1038/ncomms1072Full text not available from this repository. (Request a copy)
Despite clear benefits of optimal arrival time on breeding grounds, migration schedules may vary with an individual bird's innate quality, non-breeding habitat or breeding destination. Here, we show that for the bar-tailed godwit (Limosa lapponica baueri), a shorebird that makes the longest known non-stop migratory flights of any bird, timing of migration for individual birds from a non-breeding site in New Zealand was strongly correlated with their specific breeding latitudes in Alaska, USA, a 16,000-18,000 km journey away. Furthermore, this variation carried over even to the southbound return migration, 6 months later, with birds returning to New Zealand in approximately the same order in which they departed. These tightly scheduled movements on a global scale suggest endogenously controlled routines, with breeding site as the primary driver of temporal variation throughout the annual cycle.
|Programmes:||BAS Programmes > Other Special Projects|
|NORA Subject Terms:||Zoology
Ecology and Environment
|Date made live:||21 Dec 2010 09:44|
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