Data/hora: 01/06/2024 17:26:17

Provedor de dados: | 5
País: | France
Título: | High functional diversity stimulates diversification in experimental microbial communities
Autores: | Jousset, Alexandre; Eisenhauer, Nico; Merker, Monika; Mouquet, Nicolas; Scheu, Stefan.
Data: | 2016-06
Ano: | 2016
Resumo: | There is a growing awareness that biodiversity not only drives ecosystem services but also affects evolutionary dynamics. However, different theories predict contrasting outcomes on when do evolutionary processes occur within a context of competition. We tested whether functional diversity can explain diversification patterns. We tracked the survival and diversification of a focal bacterial species (Pseudomonas fluorescens) growing in bacterial communities of variable diversity and composition. We found that high functional diversity reduced the fitness of the focal species and, at the same time, fostered its diversification. This pattern was linked to resource competition: High diversity increased competition on a portion of the resources while leaving most underexploited. The evolved phenotypes of the focal species showed a better use of underexploited resources, albeit at a cost of lower overall growth rates. As a result, diversification alleviated the impact of competition on the fitness of the focal species. We conclude that biodiversity can stimulate evolutionary diversification, provided that sufficient alternative niches are available.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00348/45884/74244.pdf

https://archimer.ifremer.fr/doc/00348/45884/74245.pdf

DOI:10.1126/sciadv.1600124

https://archimer.ifremer.fr/doc/00348/45884/

Editor: | Amer Assoc Advancement Science
Formato: | application/pdf
Fonte: | Science Advances (2375-2548) (Amer Assoc Advancement Science), 2016-06 , Vol. 2 , N. 6 , P. e1600124 (8p.)

Fonte:

info:eu-repo/semantics/openAccess

restricted use