Global variation in the diversification rate of passerine birds
RE Ricklefs - Ecology, 2006 - Wiley Online Library
Net diversification rates were estimated for samples of primarily tribe‐to‐family‐level clades
of passerine birds, taking into account extinction as well as speciation. Two samples were
used. The first consisted of 37 clades of primarily temperate North American and primarily
tropical South American passerines; the second comprised a global set of 90 clades, each
distributed within one or more zoogeographic regions. Circumscription and ages of clades
were taken from Sibley and Ahlquist's phylogeny based on DNA hybridization, with updates …
of passerine birds, taking into account extinction as well as speciation. Two samples were
used. The first consisted of 37 clades of primarily temperate North American and primarily
tropical South American passerines; the second comprised a global set of 90 clades, each
distributed within one or more zoogeographic regions. Circumscription and ages of clades
were taken from Sibley and Ahlquist's phylogeny based on DNA hybridization, with updates …
