Publication Type: | Journal Article |
Year of Publication: | 2004 |
Authors: | Huyvaert, KP, Anderson, DJ |
Journal: | Journal of Avian Biology |
Volume: | 35 |
Issue: | 1 |
Date Published: | 2004 |
ISBN Number: | 1600-048X |
Keywords: | Sula, Sula granti, Sulidae |
Abstract: | We documented natal and breeding dispersal at several spatial scales by Galápagos Nazca boobies Sula granti, a wide-ranging pelagic seabird. We found exceptionally low degrees of both types of dispersal despite these birds’ vagility. Median natal dispersal distances were 26 m and 105 m for males and females, respectively. Median breeding dispersal distances for both sexes were 0 m. No natal or breeding dispersals occurred from our study site at Punta Cevallos, Isla Española to six other colonies in the Galápagos, but we did document four long-distance natal dispersals from Punta Cevallos to islands near the South American coast. Recaptures and dead recoveries of ringed birds showed long distance non-breeding movements to the Central American coast and elsewhere in the eastern Pacific, contrasting with the very limited dispersal to breeding sites. |
URL: | http://dx.doi.org/10.1111/j.0908-8857.2004.03131.x |
Short Title: | Journal of Avian Biology |
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