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Article Dans Une Revue Nature Ecology & Evolution Année : 2017

Frugivory-related traits promote speciation of tropical palms

Résumé

Animal-mediated seed dispersal by frugivorous birds and mammals is central to the ecology and functioning of ecosystems, but whether and how frugivory-related traits have affected plant speciation remains little explored. Fruit size is directly linked to plant dispersal capacity and therefore influences gene flow and genetic divergence of plant populations. Using a global species-level phylogeny with comprehensive data on fruit sizes and plant species distributions, we test whether fruit size has affected speciation rates of palms (Arecaceae), a plant family characteristic of tropical rainforests. Globally, the results reveal that palms with small fruit sizes have increased speciation rates compared with those with large (megafaunal) fruits. Speciation of small-fruited palms is particularly high in the understory of tropical rainforests in the New World, and on islands in the Old World. This suggests that frugivory-related traits in combination with geography and the movement behaviour of frugivores can influence the speciation of fleshy-fruited plants
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Dates et versions

hal-03346431 , version 1 (16-09-2021)

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Renske Onstein, William Baker, Thomas Couvreur, Søren Faurby, Jens-Christian Svenning, et al.. Frugivory-related traits promote speciation of tropical palms. Nature Ecology & Evolution, 2017, 1 (12), pp.1903-1911. ⟨10.1038/s41559-017-0348-7⟩. ⟨hal-03346431⟩
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