The distribution of the crested and marbled newt species (Amphibia: Salamandridae: Triturus) - an addition to the New Atlas of Amphibians and Reptiles of Europe

In the recently published New Atlas of Amphibians and Reptiles of Europe (Sillero et al., 2014a), the distribution of the newt genus Triturus was not resolved at the level of the species. The main reason for this was the lack of high quality distribution data from in and around the parapatric contact zones between species, where interspecific hybridization occurs. We are working extensively on Triturus and the (particularly genetic) data we have accumulated allow us to map the individual Triturus species at the appropriate scale. We here provide a database composed of distribution data for the individual species, at generally high resolution, particularly from in and around contact zones. Based on this database we produce maps at the 50 x 50 km UTM grid resolution as used in the new atlas and highlight those grid cells in which more than one Triturus species occurs.