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Science 20 October 2006:
Vol. 314. no. 5798, p. 420
DOI: 10.1126/science.1131367
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Technical Comments

Response to Comment on "Stability via Asynchrony in Drosophila Metapopulations with Low Migration Rates"

Sutirth Dey and Amitabh Joshi*

Ranta and Kaitala find asynchrony in our experiment unexpected and suggest stochasticity as a possible causal mechanism using simulated two-patch metapopulations. However, their mechanism can yield either subpopulation synchrony or asynchrony. We extend their approach to a nine-patch system approximating our experiment and show that asynchrony is not only not unexpected but extremely likely in real metapopulations with low migration.

Evolutionary Biology Laboratory, Evolutionary and Organismal Biology Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560 064, India.

* To whom correspondence should be addressed. E-mail: ajoshi{at}jncasr.ac.in

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Science. ISSN 0036-8075 (print), 1095-9203 (online)