publication . Article . 2013

Ecomorphological differences between Rhamdia (Bleeker, 1858) populations from the Iguaçu River basin

Fabio Teruo Mise; Luiz Fernando Caserta Tencatt; Fagner de Souza;
Open Access English
  • Published: 01 Dec 2013
  • Publisher: Instituto Virtual da Biodiversidade | BIOTA - FAPESP
Abstract
Morphological and genetic evidences suggest that Rhamdia branneri and Rhamdia voulezi, currently considered synonymous of Rhamdia quelen, are in fact two valid species. Furthermore, in the taxonomic revision of R. quelen, no exemplars from the Iguaçu River were examined, which makes the synonymy doubtful. Considering the two species as valid, it was hypothesized that R. branneri and R. voulezi have ecomorphological differences, with the objective to verify if they can be considered ecologically distinct. Ecomorphological characterization was conducted using ecomorphological indices. For statistical analysis, a Principal Component Analysis (PCA), a Multiresponse ...
Subjects
free text keywords: endemism, Heptapteridae, Rhamdia voulezi, Rhamdia branneri, Rhamdia quelen, ecomorphology, endemismo, ecomorfologia, Ecology, Evolution, Behavior and Systematics, biology.organism_classification, biology, Principal component analysis, Ecology, Ordination, Rhamdia, Synonym, Habitat
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