Nächster Vortag: Biogeography and ecology of Iberian vipers; inferring patterns and processes from regional and local scale studies
In the Iberian Peninsula there are three viper species (genus Vipera), two sister Mediterranean (aspis clade), Vipera aspis and V. latastei, and another Eurosiberian, more phylogenetically distant (Pelias clade), V. seoanei. At regional scale, the three species exhibit parapatric distributions and varying degrees of phenotypic diversity in coloration and morphological traits. At local scale, species meet in sympatry in several zones across northern Iberia, leading to the occurrence of interspecific competition, morphological convergence and hybridization. In this talk, I will present several interrelated case studies, conducted at either regional (i. e. the whole species range) or local scale (i. e. contact zones), depicting biogeographical patterns of these three viper species and inferring the evolutionary and ecological processes that might be related to them. Case studies combine occurrence, morphological, ecological and genetic data using different tools such as ecological modelling, geostatistics, phylogeographic analyses or population genetics to, for instance, reconstruct evolutionary scenarios for species, unveil inter- and intra-specific multivariate patterns of morphological variability or identify ecological factors related to species occurrence, coexistence and gene flow.
Ort: Bibliothek der Herpetologischen Sammlung, NHM Wien, Eingang Burgring 7, 1010 Wien
Datum: Montag, 19. März 2018: 18.30 - 19.30 Uhr
Picture: Fernando MARTÍNEZ-FREIRÍA