AVIS-IBIS

Birds of Indian Subcontinent

Limited dispersal by Nazca boobies Sula granti

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
Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith