I just found this in a German forum and found some references in English.
Lampropeltis getula californiae causes a lot of trouble as an invasive species on Gran Canaria, one of the Canary islands (a Spanish archipelago in the Atlantic Ocean). There are two populations at the island. The snakes have no natural predators and threaten the natural wildlife, especially the endemic Gran Canarian giant lizard (Gallotia stehlini)
Interestingly the snakes seem to be growing larger (depending on the source of the information up to 30% larger) than in California, that’s what more than enough food, mild climate and no predation does for an isolated population over only a few generations.
Here are the references
LA Times:
A variety of California kingsnake is wreaking havoc in Canary Islands*-*Los Angeles Times
The Guardian:
Invasion of albino snakes threatens Gran Canaria wildlife | Environment | theguardian.com
Roman
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