Traçando a história das vespas caçadoras de aranhas (Pompilidae: pompilinae) na região neotropical: Planalto da Bodoquena como um nó biogeográfico

Abstract

The biogeography of South America is poorly understood not recognizing the role of some areas. Plateaus have been hypothesized as key zones in the biotic distribution. Recent studies suggests a possible connection of the Bodoquena Plateau with the biomes Atlantic Rain Forest, Savanna, Chaco and Pantanal. Pompilinae is a good model for biogeographical studies because it’s current status of phylogenetic and systematic knowledge. In this study we evaluated the distribution of Pompilinae in the neotropics, using the Panbiogeografic method, focusing on the genera sampled in Serra da Bodoquena. We check which biogeographic provinces have been influenced the composition of the Pompilinae in the Bodoquena Plateau. The data colle was achieved in two steps. The first refers to the survey totaling 70 days discontinuous of fieldwork conducted in Bodoquena Plateau. The second step refers to the data of occurrence extracted from the literature. The points of occurrence of the genera Pompilinae were georeferenced, and imprecise locations were discarded. The track analysis was performed using the minimal spanning tree method. There were 13 genera of Pompilinae recorded. The generalized tracks indicate that Bodoquena Plateau has a possible influence in biotic composition of three different biogeographical sub-regions: Amazon, Chacoan and Paranaense. The intersection between the generalized lines gives to Bodoquena Plateau the condition of a biogeographic node.