期刊
NATURE COMMUNICATIONS
卷 3, 期 -, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/ncomms2239
关键词
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资金
- Embassy of France
- U.S. NSF
- University of Texas-Austin
- CNRS
- [ANR-BACH-09-JCJC-0110-01]
- [NSF-DEB0717370]
One of the simplest hypotheses used to explain species coexistence is the competition-colonization trade-off, that is, species can stably coexist in a landscape if they show a trade-off between competitive and colonization abilities. Despite extensive theory, the dynamics predicted to result from competition-colonization trade-offs are largely untested. Landscape change, such as habitat destruction, is thought to greatly influence coexistence under competition-colonization dynamics, although there is no formal test of this prediction. Here we present the first illustration of competition-colonization dynamics that fully transposes theory into a controlled experimental metacommunity of two Pseudomonas bacterial strains. The competition-colonization dynamics were achieved by directly manipulating trade-off strength and colonization rates to generate the full range of coexistence conditions and responses to habitat destruction. Our study successfully generates competition-colonization dynamics matching theoretical predictions, and our results further reveal a negative relationship between diversity and productivity when scaling up to entire metacommunities.
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