The role of evolutionary time, diversification rates and dispersal in determining the global diversity of a large radiation of passerine birds

Tianlong Cai, Shimiao Shao, Jonathan Kennedy, Per Alström, Robert Moyle, Yanhua Qu, Fumin Lei & Jon Fjeldså
Aim: Variation in species diversity among different geographic areas may result from differences in speciation and extinction rates, immigration and time for diversification. An area with high species diversity may be the result of a high net diversification rate, multiple immigration events from adjacent regions,anda long time available for the accumulation of species (know as the “time-for-speciation effect”). Here, we examine the relative importance of the three aforementionedprocesses in shaping the geographic diversity patterns of...
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These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
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