Aliens in the Netherlands: local genetic pollution of barred grass snakes (Squamata: Serpentes: Natricidae)

[No abstract available]
We would like to thank S. Guldemond for the photo of a grass snake used in Figure 2. Frank Glaw and Jörn Köhler made valuable comments on an earlier manuscript version. The present study was conducted in the Senckenberg Dresden Molecular Laboratory (SGN-SNSD-Mol-Lab).