Taxonomia integrativa dos complexos de espécies de Dendropsophus haddadi e D. oliveirai (Amphibia, Anura, Hylidae)

Abstract

The genus Dendropsophus Fitzinger, 1843 constitutes a monophyletic group of small anurans, comprising more than 100 species distributed in nine groups. Among these is the group of D. decipiens, currently composed of seven species occurring from southern to northeastern Brazil. Despite the monophyletic support of the group, it presents internal relationships that lack resolution. In addition to the existence of succinct original descriptions and potential mixed type series, significant genetic and morphological variability was observed among the taxa, indicating the presence of diversity not yet described in the group. This dissertation aimed to perform a taxonomic analysis of the D. decipiens group, combining molecular, morphometric, and bioacoustic data, as well as a rudimentary characterization of morphology and color patterns. The results revealed a taxonomic complexity greater than expected: 25 genetic lineages were identified, ten of which are novel and not previously explored in the literature. Seven correspond to nominal species and fifteen were classified as confirmed candidate species. The study revealed a gradient of morphological and acoustic crypticity among the taxa, reinforcing the need for multiple tools for species delimitation within the group. This work provides a characterization of the lineages found and re-evaluates the status of the nominal species, contributing significantly to the knowledge of the cryptic and systematic diversity of Dendropsophus.