Patterns of richness of freshwater mollusks from Chile: predictions of its distribution based on null models.

ABSTRACT: The freshwater mussels from Chile are characterized by a high percentage of endemism and a fragmented latitudinal diversity, which has been attributed to the features and geomorphological history sculpted by the hydrographic basins. In this work, a set of hypothesis under a macroecological approach is addressed, with the aim to explore environmental, topographic and hydrological factors that define the latitudinal distribution of this mussel group. In order to achieve this goal, Rapoport's rule, geometrics limits and co-ocurrence were evaluated. In addition, we analyze the source and sink hypotheses through the nested analysis. We observed a noticeable mid-domain effect (MDE), where a major richness than expected was randomly observed between 40 and 41°S. The results revealed that the dist

SUBMITTER: Fuentealba Jara CG 

PROVIDER: S-EPMC6613532 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature