Lee, P.L.M., Clayton, D.H., Griffiths, R., and Page, R.D.M. (1996) Does behavior reflect phylogeny in swiftlets (Aves: Apodidae)? A test using cytochrome b mitochondrial DNA sequences. Proceedings of the National Academy of Sciences of the United States of America, 93 (14). pp. 7091-7096.
Publisher's URL: http://www.pnas.org/cgi/content/abstract/93/14/7091
Swiftlets are small insectivorous birds, many of which nest in caves and are known to echolocate. Due to a lack of distinguishing morphological characters, the taxonomy of swiftlets is primarily based on the presence or absence of echolocating ability, together with nest characters. To test the reliability of these behavioral characters, we constructed an independent phylogeny using cytochrome b mitochondrial DNA sequences from swiftlets and their relatives. This phylogeny is broadly consistent with the higher classification of swifts but does not support the monophyly of swiftlets. Echolocating swiftlets (Aerodramus) and the nonecholocating "giant swiftlet" (Hydrochous gigas) group together, but the remaining nonecholocating swiftlets belonging to Collocalia are not sister taxa to these swiftlets. While echolocation may be a synapomorphy of Aerodramus (perhaps secondarily lost in Hydrochous), no character of Aerodramus nests showed a statistically significant fit to the molecular phylogeny, indicating that nest characters are not phylogenetically reliable in this group.
|Glasgow Author(s) Enlighten ID:||Page, Professor Roderic|
|Authors:||Lee, P.L.M., Clayton, D.H., Griffiths, R., and Page, R.D.M.|
|Subjects:||Q Science > QL Zoology|
|College/School:||College of Medical Veterinary and Life Sciences|
|Journal Name:||Proceedings of the National Academy of Sciences of the United States of America|
|Publisher:||National Academy of Sciences|
|Copyright Holders:||©Copyright National Academy of Sciences|
|First Published:||First published in PNAS 93 (14):7091-7096|
|Publisher Policy:||Reproduced in accordance with the copyright policy of the publisher.|