期刊
TRENDS IN ECOLOGY & EVOLUTION
卷 34, 期 5, 页码 400-415出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tree.2019.01.012
关键词
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Growing evidence for lineage diversification that occurs without strong ecological divergence (i.e., nonadaptive radiation) challenges assumptiorm about the buildup and maintenance of species in evolutionary radiations, particularly when ecologically similar and thus potentially competing species co-occur. Understanding nonadaptive radiations involves identifying conditions conducive to both the nonecological generation of species the maintenance of co-occurring ecologically similar species. To borrow MacArthur's [1] (Challenging Biological Problems 1972;253-259) form of inquiry, the ecology of nonadaotive radiations can be understood as follows: for species of type A, in environments of type B, nonadaptive radiations may emerge. We review purported cases of nonadaptive radiation and suggest properties of organisms, resources, and landscapes that might be conducive to their origin and maintenance. These properties include poor dispersal ability and the ephemerality and patchiness of resources.
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