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A New Species of Shearwater (Puffinus) Recorded from Midway Atoll, Northwestern Hawaiian Islands - Una Nueva Especie de Puffinus del Atolón Midway, Islas Hawaianas del Noroeste
Peter Pyle, Andreanna J. Welch and Robert C. Fleischer
Vol. 113, No. 3 (August 2011), pp. 518-527
Published by: American Ornithological Society
Stable URL: http://www.jstor.org/stable/10.1525/cond.2011.100117
Page Count: 10
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Abstract Small black-and-white shearwaters of the genus Puffinus are distributed globally, and their phylogenetic relationships are complex and uncertain. In 1963 a small shearwater collected at Midway Atoll in the North Pacific Ocean was identified as a Little Shearwater (P. assimilis), but several physical features suggest closer alliance with Audubon's Shearwater (P. lherminieri) and its relatives. Biometrics indicate that the taxon this specimen represents is smaller than any other known shearwater, and phylogenetic analyses indicate it is distinct, with a pair-wise sequence divergence of at least 3.8% from related taxa. We thus propose a new species based on the specimen: Bryan's Shearwater (Puffinus bryani nom. nov.). The breeding and nonbreeding ranges of Bryan's Shearwater are unknown, but a physical resemblance to the North Atlantic boydi (of controversial taxonomic status within Puffinus) suggests an affiliation with subtropical or tropical waters. Bryan's Shearwater is apparently rare and could be threatened by extinction; therefore, additional information is needed to increase our understanding of this taxon and its conservation requirements.
The Condor © 2011 Cooper Ornithological Society