Universal species-area and endemics-area relationships at continental scales

A new article coming up in Nature by David Storch and Petr Keil and Walter Jetz calculates continental scale SAR and EAR relationships for amphibians, birds and mammals. They find that, after correcting for mean range size of the taxa, there are nearly universal relationships across taxa and continents. While the SARs are clearly not…

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Controversy about species-area versus endemics-area relationships for calculating extinction rates

I’m lagging a little behind the news, but maybe it’s also an advantage to write about this issue after the first smoke has cleared. The topic is a paper by Fangliang He and Stephen Hubbell that appeared in Nature two weeks ago and that has sparked considerable controversy. Basically, the authors claim that “conventional” extinction…