A new phylogeny of swiftlets (Aves: Apodidae) based on cytochrome-b DNA

Thomassen, Henri A.; Wiersema, Anita T; Bakker, Merijn A. G. de; Knijff, Peter de; Hetebrij, Elske; Povel, G.D.E.

doi:10.1016/s1055-7903(03)00066-6

Cited by 38 publications

(48 citation statements)

References 21 publications

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“…A more recent analysis of swiftlet phylogeny by Thomassen et al (2003) using longer cyt-b sequences (1143 bp) from a limited number of taxa has provided further support for swiftlet monophyly, in agreement with our findings. Unlike our study, however, they suggest paraphyly of Aerodramus by placing the nonecholocating waterfall swiftlet Hydrochous gigas within that genus, a result that could indicate either the loss of echolocation in H. gigas or the appearance of echolocation multiple times in different Aerodramus taxa (Thomassen et al 2003).…”

Section: Discussionsupporting

confidence: 91%

“…Unlike our study, however, they suggest paraphyly of Aerodramus by placing the nonecholocating waterfall swiftlet Hydrochous gigas within that genus, a result that could indicate either the loss of echolocation in H. gigas or the appearance of echolocation multiple times in different Aerodramus taxa (Thomassen et al 2003). Support for this placement of H. gigas was weak, however, and the analysis by Thomassen et al (2003) sampled only four Aerodramus species and did not include data from Collocalia troglodytes.…”

Section: Discussioncontrasting

confidence: 87%

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The evolution of echolocation in swiftlets

Price

Johnson

Clayton

2004

Journal of Avian Biology

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The abilities of some cave-nesting swiftlets to echolocate has traditionally been used to separate the genus Aerodramus, which includes echolocating species, from the genus Collocalia , thought to lack echolocation. Here we report the discovery of echolocation in a member of the latter genus, the pygmy swiftlet Collocalia troglodytes. We also present a well-supported molecular phylogeny for the swiftlets and their relatives based on DNA sequence data from two mitochondrial genes, which we use to reconstruct the evolution of echolocation. Our data provide strong evidence that the swiftlets are a monophyletic group. This monophyly plus the presence of echolocation in C. troglodytes indicate that either (1) echolocation evolved much earlier in the swiftlets than previously thought and has since been lost in most Collocalia taxa, or (2) this ability evolved independently in Aerodramus and Collocalia . Based on our results, echolocation can no longer be considered a useful character for distinguishing these two genera.

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Section: Discussionsupporting

confidence: 91%

Section: Discussioncontrasting

confidence: 87%

The evolution of echolocation in swiftlets

Price

Johnson

Clayton

2004

Journal of Avian Biology

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“…The grouping of Collocaliini and Apodini to the exclusion of Chaeturini was also supported by a multi-locus molecular analysis [41], though that study did not include any representatives of Cypseloidini.…”

Section: (G) Phylogenetic Analysismentioning

confidence: 84%

Fossil evidence of wing shape in a stem relative of swifts and hummingbirds (Aves, Pan-Apodiformes)

et al. 2013

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A feathered specimen of a new species of Eocypselus from the Early Eocene Green River Formation of Wyoming provides insight into the wing morphology and ecology in an early part of the lineage leading to extant swifts and hummingbirds. Combined phylogenetic analysis of morphological and molecular data supports placement of Eocypselus outside the crown radiation of Apodiformes. The new specimen is the first described fossil of Pan-Apodiformes from the pre-Pleistocene of North America and the only reported stem taxon with informative feather preservation. Wing morphology of Eocypselus rowei sp. nov. is intermediate between the short wings of hummingbirds and the hyper-elongated wings of extant swifts, and shows neither modifications for the continuous gliding used by swifts nor modifications for the hovering flight style used by hummingbirds. Elongate hindlimb elements, particularly the pedal phalanges, also support stronger perching capabilities than are present in Apodiformes. The new species is the smallest bird yet described from the Green River Formation, and supports the hypothesis that a decrease in body size preceded flight specializations in Pan-Apodiformes. The specimen also provides the first instance of melanosome morphology preserved in association with skeletal remains from the Green River Formation.

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“…The complete cytb of 1143 bp was firstly amplified with primers ND5 and Thr (Thomassen et al, 2003). The amplification product was then used as a template for three different second PCRs using three different pairs of primers to amplify the left, middle and right segment of cytb.…”

Section: Nest Pcr Of Ebn Dna Samplesmentioning

confidence: 99%