Of possible interest:
Hybridization patterns in two contact zones of grass snakes reveal a new Central European snake species
Here is a link:
http://www.nature.com/articles/s41598-017-07847-9
Jeroen Speybroeck wrote:It seems a lot of the UK media claim that this adds an additional snake species to the UK fauna. While a few Natrix natrix s.s. introduced populations exist, I have no idea why they would claim that, as the sole UK species should be Natrix helvetica.
Ilian Velikov wrote:I'm very glad to have helped no matter how little my contribution was but unfortunately for the non-professionals like me it is rather hard to understand what the results are of the study. Would be great if someone could summerize it in layman terms...
+1I must say I was very surprised about this, but I accept it. Minor remarks are that I don't understand why the subspecies gotlandica, schweizeri and corsa are still maintained (whereas they were questioned in 2013) and that I would like to know what's going on at the contact areas around NE Netherlands and NE Italy / Slovenia.
Ilian Velikov wrote:I'm not really knowledgeable enough
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