Conservation Status
Despite the decline in their population from collection as pets (especially in the more northerly regions in which large groups are collected at hibernation), pollution of aquatic areas, and introduction of bullfrogs as potential predators, gartersnakes are still some of the most commonly found reptiles in much of their ranges. The San Francisco gartersnake (Thamnophis sirtalis tetrataenia) however, is an endangered subspecies and has been on the endangered list since 1969. Predation by crawfish has also been responsible for the decline of the narrow head garter snake .
Read more about this topic: Garter Snake
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