Accueil > Communication > Actualités scientifiques > Publications scientifiques

Ecological versatility and the assembly of multiple competitors : cautionary notes for assembly inferences [Ecology]

Keywords : assembly rules, multispecies competition, functional diversity, limiting similarity, functional versatility, niche theory, clustering, overdispersion

par Frédéric Magné - publié le

The role of niche differences and competition is invoked when one finds coexisting species to be more dissimilar in trait composition than expected at random in community assembly studies. This approach has been questioned as competition has been hypothesized to either lead to communities assembled by similar or dissimilar species, depending on whether species similarity reflects fitness or niche differences, respectively. A current problem is that the arguments used to draw relationships between competition and species similarity are based on pairwise theoretical examples, while in nature competition can occurs among a constellation of species with different levels of versatility in resources used.(...)

Voir en ligne