MSc Student
Advisor: Günter Gollmann

Unit for Theoretical Biology, Department of Evolutionary Biology
University of Vienna

Abstract

The European nose-horned viper (Vipera ammodytes) is a thermophilic snake species that has been introduced to Winzendorf, Lower Austria, likely by terrarium owners. While the species is critically endangered in Austria, the presence of this allochthonous population raises ecological and conservation concerns. This study aims to assess the population size and distribution of Vipera ammodytes in the region using a capture-recapture approach. Over two field seasons (2025–2026), individuals will be captured, measured, photographed, and georeferenced. Population estimates will be derived using statistical models, such as the Cormack-Jolly-Seber model. Additionally, genetic analyses will be conducted to determine the genetic diversity within the population. The results will provide crucial insights into the dynamics of this introduced population.