Hi Rubén,
great, keep them coming! This discussions are interesting. By the way, i once visited Sierra de Gredos and found on the way to the Laguna Grande (roughly halfway between the end of the asfalted road and the Laguna) a small lake in which I saw a dead Triturus marmoratus. This was also high I think 1800 m. (but I can look it up in my notes if you want). It is interesting to see that the do very well at these high levels. Malkmus has shown (a picture is also in his new Portugal book) that Triturus marmoratus from Serra de Montemuro (I think it was this name) from northern Portugal can become very dark coloured.
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