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Adaptive Radiation from Resource Competition in Digital Organisms

Chow, Stephanie S. and Wilke, Claus O. and Ofria, Charles and Lenski, Richard E. and Adami, Christoph (2004) Adaptive Radiation from Resource Competition in Digital Organisms. Science, 305 (5680). pp. 84-86. ISSN 0036-8075. doi:10.1126/science.1096307.

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Species richness often peaks at intermediate productivity and decreases as resources become more or less abundant. The mechanisms that produce this pattern are not completely known, but several previous studies have suggested environmental heterogeneity as a cause. In experiments with evolving digital organisms and populations of fixed size, maximum species richness emerges at intermediate productivity, even in a spatially homogeneous environment, owing to frequency-dependent selection to exploit an influx of mixed resources. A diverse pool of limiting resources is sufficient to cause adaptive radiation, which is manifest by the origin and maintenance of phenotypically and phylogenetically distinct groups of organisms.

Item Type:Article
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URLURL TypeDescription Online Material
Wilke, Claus O.0000-0002-7470-9261
Ofria, Charles0000-0003-2924-1732
Lenski, Richard E.0000-0002-1064-8375
Adami, Christoph0000-0002-2915-9504
Additional Information:© 2004 American Association for the Advancement of Science. Received 2 February 2004; accepted 3 June 2004. Supported by grant DEB-9981397 from NSF.
Funding AgencyGrant Number
Issue or Number:5680
Record Number:CaltechAUTHORS:20141119-110450767
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51960
Deposited By: Tony Diaz
Deposited On:19 Nov 2014 23:27
Last Modified:10 Nov 2021 19:18

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