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Luís Felipe Toledo, Diego Llusia, Conrado A. Vieira, Milena Corbo, Rafael Márquez. Bioacoustics. 24 (2015). Sympatric species tend to be less often grouped by call similarity than allopatric species, with 0–15% of sympatric species grouped for both similarity methods. However, associations between variables were not confirmed by frequency distributions in contingency tables or by similarity values in the pairs of sympatric and allopatric species. Leer más.

Jesús Díaz-Rodríguez, Helena Gonçalves, Fernando Sequeira, Tiago Sousa-Neves, Miguel Tejedo, Nuno Ferrand, Iñigo Martínez-Solano. Molecular Phylogenetics and Evolution. Available online 22 December 2014. Species-tree analyses recovered one of these species lineages, corresponding to P. ibericus (lineage B), as the sister taxon to the other three major species lineages, distributed respectively in: western Iberian Peninsula, along the Atlantic coast and part of central Portugal (lineage A); Central and Eastern Spain (lineage C); and North-eastern Spain, France and North-western Italy (lineage D). The latter is in turn subdivided into two sub-clades, one in SE France and NW Italy and the other one from NE Spain to NW France, suggesting the existence of a Mediterranean-Atlantic corridor along the Garonne river. An information theory-based validation approach implemented in SpedeSTEM supports an arrangement of four candidate species, suggesting the need for a taxonomic revision of Western European Pelodytes. Leer más.