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Science 25 May 2007:
Vol. 316. no. 5828, p. 1124
DOI: 10.1126/science.1137697
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Technical Comments

Response to Comment on "Dispersal Limitations Matter for Microbial Morphospecies"

Richard J. Telford,1,2* Vigdis Vandvik,1 H. J. B. Birks1,2,3

Pither argues that the relationship we found between regional species-richness maxima and modal lake pH is expected because both values are constrained by the regional pH range and therefore cannot be interpreted as a signal of regional metacommunity dynamics. However, the null model he uses sets inappropriate parameters, generating unrealistic simulated data. We confirm our previous conclusions using a more appropriate null model.

1 Ecological and Environmental Change Research Group, Department of Biology, University of Bergen, Allégaten 41, N-5007 Bergen, Norway.
2 Bjerknes Centre for Climate Research, Allégaten 55, N-5007 Bergen, Norway.
3 Environmental Change Research Centre, University College London, London, WC1E 6BT, UK.

* To whom correspondence should be addressed. E-mail: Richard.Telford{at}bjerknes.uib.no

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
A biophysical perspective on dispersal and the geography of evolution in marine and terrestrial systems.
M. N Dawson and W. M Hamner (2008)
J R Soc Interface 5, 135-150
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