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New analytical methods are improving our ability to reconstruct robust species trees from multilocus datasets, despite difficulties in phylogenetic reconstruction associated with recent, rapid divergence, incomplete lineage sorting and/or introgression. In this study, we applied these methods to resolve the radiation of toads in the Bufo bufo (Anura, Bufonidae) species group, ranging from the Iberian Peninsula and North Africa to Siberia, based on sequences from two mitochondrial and four nuclear DNA regions (3490 base pairs). We obtained a fully-resolved topology, with the recently described Bufo eichwaldi from the Talysh Mountains in south Azerbaijan and Iran as the sister taxon to a clade including: (1) north African, Iberian, and most French populations, referred herein to Bufo spinosus based on the implied inclusion of populations from its type locality and (2) a second clade, sister to B. spinosus, including two sister subclades: one with all samples of Bufo verrucosissimus from the Caucasus and another one with samples of B. bufo from northern France to Russia, including the Apennine and Balkan peninsulas and most of Anatolia. Leer más.

La caída en la fabricación de ladrillos en Bailén (Jaén) ha provocado el abandono de la mayoría de las canteras de donde se extraía la arcilla. A su vez, las canteras en desuso se han ido regenerando de forma natural y ha ido apareciendo vegetación palustre, que ha atraído a anfibios y aves acuáticas. Lo que fue un paisaje de trajín y polvo, se ha convertido con la crisis en un páramo en el que han surgido oasis de vida natural. Leer más.