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Molecular Ecology (2003) 12, 28352843 doi: 10.1046/j.1365-294X.2003.01931.x 2003 Blackwell Publishing Ltd
 

Summary: Molecular Ecology (2003) 12, 2835­2843 doi: 10.1046/j.1365-294X.2003.01931.x
© 2003 Blackwell Publishing Ltd
Blackwell Publishing Ltd.
Inter-island movements and population differentiation in
a pelagic seabird
DONALD C. DEARBORN,* ANGELA D. ANDERS, E. A. SCHREIBER, RACHELLE M. M. ADAMS§
and ULRICH G. MUELLER§
*Department of Biology and Program in Animal Behaviour, Bucknell University, Lewisburg PA 17837, Program in Ecology,
Pennsylvania State University, University Park, PA 16802, National Museum of Natural History, MRC 116, Smithsonian
Institution, Washington DC 20560, §Section of Integrative Biology, University of Texas, Austin TX 78712
Abstract
We used mark­resight data and amplified fragment length polymorphism (AFLP) markers
to assess movements and gene flow between Central Pacific breeding colonies of the great
frigatebird, Fregata minor. Of 715 adult frigatebirds marked on Tern Island and Johnston
Atoll, 21.3% were resighted at other frigatebird colonies at least 582 km away. Mark­resight
data indicated regular movement of males and females between Tern Island and Johnston
Atoll (873 km apart), and less frequent movements to other islands; no birds marked on
Tern or Johnston were seen on Christmas Island, but one was seen in the Philippines,
7627 km from where it was marked. Despite the regular occurrence of interisland move-
ments, Bayesian analyses of AFLP data showed significant genetic differentiation between

  

Source: Adams, Rachelle M. M. - Department of Entomology, National Museum of Natural History, Smithsonian Institution
Dearborn, Don - Department of Biology, Bates College
Mueller, Ulrich G. - Section for Integrative Biology, Division of Biological Sciences, University of Texas at Austin
Schultz, Ted - Curator of Hymenoptera, Department of Entomology, National Museum of Natural History, Smithsonian Institution

 

Collections: Biology and Medicine; Environmental Sciences and Ecology