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Comment on “Dispersal Limitations Matter for Microbial Morphospecies”

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Science  25 May 2007:
Vol. 316, Issue 5828, pp. 1124b
DOI: 10.1126/science.1137525

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Telford et al. (Brevia, 19 May 2006, p. 1015) reported that freshwater diatoms exhibit regional-scale richness-pH relationships that depend substantially on regional habitat availability. On this basis, the authors argued that, despite their microscopic size, diatoms are not ubiquitously dispersed. Here, I describe my demonstration that their primary evidence against the ubiquitous dispersal hypothesis is spurious.

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