Biogeographic consequences of shifting climate for the western massasauga (Sistrurus tergeminus)

Danielle Walkup, Michelle Lawing, Toby Hibbitts & Wade Ryberg
The western massasauga (Sistrurus tergeminus) is a small pit viper with an extensive geographic range, yet observations of this species are relatively rare. They persist in patchy and isolated populations, threatened by habitat destruction and fragmentation, mortality from vehicle collisions, and deliberate extermination. Changing climates may pose an additional stressor on the survival of isolated populations. Here, we evaluate historic, modern, and future geographic projections of suitable climate for S. tergeminus to outline shifts in...
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