Details

Autor(en) / Beteiligte

• Aristide, Leandro
• Morlon, Hélène
• Mooers, Arne

Titel

Understanding the effect of competition during evolutionary radiations: an integrated model of phenotypic and species diversification

Ist Teil von

• Ecology letters, 2019-12, Vol.22 (12), p.2006-2017

Ort / Verlag

England: Blackwell Publishing Ltd

Erscheinungsjahr

2019

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• Competition can drive macroevolutionary change, for example during adaptive radiations. However, we still lack a clear understanding of how it shapes diversification processes and patterns. To better understand the macroevolutionary consequences of competition, as well as the signal left on phylogenetic data, we developed a model linking trait evolution and species diversification in an ecological context. We find four main results: first, competition spurs trait diversity but not necessarily species richness; second, competition produces slowdowns in species diversification even in the absence of explicit ecological limits, but not in phenotypic diversification even in the presence of such limits; third, early burst patterns do not provide a reliable way of testing for adaptive radiations; and fourth, looking for phylogenetic signal in trait data and support for phenotypic models incorporating competition is a better alternative. Our results clarify the macroevolutionary consequences of competition and could help design more powerful tests of adaptive radiations in nature.