What environmental requirement for woodlice dictates the typical habitat choice of Dysdera crocata?
Answer
Consistent moisture and darkness
The habitat preferences of the Woodlouse Spider are directly dictated by the needs of its primary prey, woodlice, which belong to the order *Isopoda*. Woodlice must avoid desiccation because they breathe using modified gills, making consistent moisture and darkness essential for their survival. Consequently, the spider seeks out the same dark, damp locations—such as under stones, mulch, leaf piles, or in damp basements—to ensure its food source is nearby. The spider follows its food source into these sheltered environments.

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