期刊
AMERICAN NATURALIST
卷 185, 期 5, 页码 584-593出版社
UNIV CHICAGO PRESS
DOI: 10.1086/680859
关键词
diversity; saturation; community ecology; ecological limits
资金
- National Science Foundation [DEB-1208912]
- Direct For Biological Sciences
- Division Of Environmental Biology [1208912] Funding Source: National Science Foundation
We argue that biotas at scales from local communities to entire continents are nearly always open to new species and that their diversities are far from any ecological limits. We show that the fossil, phylogenetic, and morphological evidence that has been used to suggest that ecological processes set limits to diversity in evolutionary time is weak and inconsistent. At the same time, ecological evidence from biological invasions, experiments, and diversity analyses strongly supports the openness of communities to new species. We urge evolutionary biologists to recognize that ecology has largely moved beyond simple notions of equilibrium at a carrying capacity and toward a richer view of communities as highly dynamic in space and time.
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