Which environmental conditions are considered optimal for the survival of *I. pacificus* in its core areas?
Answer
Warm, wet winters
The survival and success of *Ixodes pacificus* populations are significantly influenced by specific abiotic factors, which are key inputs for current climate models. The most favorable conditions identified for the tick's survival, particularly within the core ranges spanning California, western Oregon, and western Washington, involve a combination of warmth and moisture during the colder months. Specifically, warm, wet winters are noted as being optimal, supporting the tick's physiological processes and potentially impacting the availability or activity of its hosts during critical periods of its life cycle.

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