Siskiyou Hesperian

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  • Species Common Name Siskiyou Hesperian
  • Species Scientific Name Vespericola sierranus


Special needs

The Siskiyou hesperian may be found in spring seeps, under leaf litter.

Limiting factors

This species has a very restricted distribution. Habitat loss, including spring alteration and decreased water flow, represents a major threat to Siskiyou hesperian. Sedimentation and nutrient inputs from dredging, mining, road construction, and other land use practices may smother substrates or reduce egg survival.

Conservation actions

Maintain appropriate water flow and quality. Prevent or mitigate for water diversions, dredging, or other activities that could increase sediment or nutrient levels.