Snowfields
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Nebria vandykei
Van Dyke's gazelle beetle
Nebria vandykei is an alpine ground beetle in the family Carabidae, endemic to the Pacific Northwest of North America. Adults are brachypterous (short-winged), nocturnal, and carnivorous. The species occupies a specialized niche along stream margins and snowfield edges, habitats subject to extreme environmental stress. Research indicates this species has undergone adaptive evolution in response to cold, heat, and desiccation stress, with selection acting on stress response pathways despite a history of rapid demographic shifts.