Through admixture and phylogenetic analyses of thousands of loci, we provide a comprehensive phylogeographic framework for the A. obstetricans complex, as well as a fully resolved phylogeny for the entire genus. As part of this effort, we carefully explore the influence of different sampling schemes and data filtering thresholds on tree reconstruction, showing that several, slightly different, yet robust topologies may be retrieved with small datasets obtained by stringent SNP calling parameters, especially when admixed individuals are included. In contrast, analyses of incomplete but larger datasets converged on the same phylogeny, irrespective of the reconstruction method used or the proportion of missing data.  Leer más.


We found some parasite haplotypes that infected different lizard host genera with ancient diverging histories, which suggested that Karyolysus is less host-specific than other blood parasites of lizards in the region. A co-phylogenetic analysis supported this interpretation because no significant co-speciation signal was shown between Karyolysus and lizard hosts. Leer más.


Para muchos puede resultar un sonido molesto, incluso irritante. Para otros en cambio el croar de las ranas forma parte de la banda sonora de nuestras primaveras en el campo. Un son que nos acompañaba en los paseos de atardecer por los aguazales, a orillas del río o junto a las charcas. Sin embargo cada vez resulta menos común escuchar el canto de los batracios. Leer más.