The hypothesis of sympatric speciation as the dominant generator of endemism in a global hotspot of biodiversity.

ABSTRACT: Allopatric or sympatric speciation influence the degree to which closely related species coexist in different manners, altering the patterns of phylogenetic structure and turnover among and between communities. The objective of this study was to examine whether phylogenetic community structure and turnover in the Brazilian Atlantic Forest permit conclusions about the dominant process for the formation of extant angiosperm richness of tree species. Therefore, we analyzed phylogenetic community structure (MPD, MNTD) as well as taxonomic (Jaccard similarity) and phylogenetic turnover (betaMPD, betaMNTD) among and between 49 tree communities distributed among three different habitat types. Mean annual precipitation and mean annual temperature in each survey area were estimated. Phylogenetic co

SUBMITTER: Gastauer M 

PROVIDER: S-EPMC6102518 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature