Produção Nacional
Revisado por pares
Elements of fish metacommunity structure in Neotropical freshwater streams
2020; Wiley; Volume: 10; Issue: 21 Linguagem: Inglês
10.1002/ece3.6804
ISSN2045-7758
AutoresThiago Bernardi Vieira, Leandro Schlemmer Brasil, Liriann Chrisley Da Silva, Francisco Leonardo Tejerina‐Garro, Pedro de Podestà Uchôa de Aquino, Paulo dos Santos Pompeu, Paulo de Marco Júnior,
Tópico(s)Fish Biology and Ecology Studies
ResumoAbstract The identification of the mechanisms underlying patterns of species co‐occurrence is a way to identify which process(es) (niche, neutral, or both) structure metacommunities. The current paper had the goal of identifying patterns of co‐occurrence in Neotropical stream fish and determining which processes structure the fish metacommunity, and identifying any gradients underlying this structure. Results indicated that the metacommunity formed by the species pool was structured by a pattern of nested co‐occurrence (hyperdispersed species loss) and a mass‐effect mechanism. However, a set of core species, displaying a Clementsian pattern, was structured by a species‐sorting mechanism. Both, hyperdispersed species loss and the Clementsian patterns point to a discrete set of communities within the metacommunity. These communities could be isolated by the water physicochemical conditions or morphological characteristics of the stream channel.
Referência(s)