Abstract
The distribution of species richness in families of passerine birds suggests that the net rate of diversification was significantly higher than average in as many as 7 out of 47 families. However, the absence of excess species richness among the 106 tribes within these families indicates that these high rates were transient, perhaps associated in some cases with tectonic movements or dispersal events that extended geographical ranges. Thus, large clade size among passerine birds need not represent intrinsic key innovations that influence the rate of diversification. Approximately 17 families and 30 tribes have too few species relative to other passerine taxa. Many of these are ecologically or geographically marginal, being especially overrepresented in the Australasian region. Observed intervals between lineage splitting suggest that extinction has occurred ca. 90% as frequently as speciation (waiting times of 1.03 and 0.93 Myr) and that the 47 modern families comprising 5712 species descended from approximately 430 passerine lineages extant 24 Myr ago. Speciation and extinction rates among small, marginal families might be 1-2 orders of magnitude lower.
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- Avise J. C., Walker D. Pleistocene phylogeographic effects on avian populations and the speciation process. Proc Biol Sci. 1998 Mar 22;265(1395):457–463. doi: 10.1098/rspb.1998.0317. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Barker F. Keith, Barrowclough George F., Groth Jeff G. A phylogenetic hypothesis for passerine birds: taxonomic and biogeographic implications of an analysis of nuclear DNA sequence data. Proc Biol Sci. 2002 Feb 7;269(1488):295–308. doi: 10.1098/rspb.2001.1883. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ericson Per G. P., Christidis Les, Cooper Alan, Irestedt Martin, Jackson Jennifer, Johansson Ulf S., Norman Janette A. A Gondwanan origin of passerine birds supported by DNA sequences of the endemic New Zealand wrens. Proc Biol Sci. 2002 Feb 7;269(1488):235–241. doi: 10.1098/rspb.2001.1877. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gage Matthew J. G., Parker Geoffrey A., Nylin Soren, Wiklund Christer. Sexual selection and speciation in mammals, butterflies and spiders. Proc Biol Sci. 2002 Nov 22;269(1507):2309–2316. doi: 10.1098/rspb.2002.2154. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lovette Irby J., Bermingham Eldredge, Ricklefs Robert E. Clade-specific morphological diversification and adaptive radiation in Hawaiian songbirds. Proc Biol Sci. 2002 Jan 7;269(1486):37–42. doi: 10.1098/rspb.2001.1789. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Magallón S., Sanderson M. J. Absolute diversification rates in angiosperm clades. Evolution. 2001 Sep;55(9):1762–1780. doi: 10.1111/j.0014-3820.2001.tb00826.x. [DOI] [PubMed] [Google Scholar]
- Mercer John M., Roth V. Louise. The effects of Cenozoic global change on squirrel phylogeny. Science. 2003 Feb 20;299(5612):1568–1572. doi: 10.1126/science.1079705. [DOI] [PubMed] [Google Scholar]
- Nee S., Mooers A. O., Harvey P. H. Tempo and mode of evolution revealed from molecular phylogenies. Proc Natl Acad Sci U S A. 1992 Sep 1;89(17):8322–8326. doi: 10.1073/pnas.89.17.8322. [DOI] [PMC free article] [PubMed] [Google Scholar]
- doi: 10.1098/rspb.1999.0726. [DOI] [PMC free article] [Google Scholar]
- Ricklefs R. E., Bermingham E. Nonequilibrium diversity dynamics of the Lesser Antillean avifauna. Science. 2001 Nov 16;294(5546):1522–1524. doi: 10.1126/science.1065005. [DOI] [PubMed] [Google Scholar]
- Steadman D. W. Prehistoric extinctions of pacific island birds: biodiversity meets zooarchaeology. Science. 1995 Feb 24;267(5201):1123–1131. doi: 10.1126/science.267.5201.1123. [DOI] [PubMed] [Google Scholar]