In Oregon and California, what fundamental requirement remains constant for western weasel populations across varied topography?
Answer
Secure, complex ground cover
Despite the wide array of topographies present in states like Oregon and California, ranging from high-elevation forests to lower riparian areas, the core survival requirement for western weasels remains unchanged. Regardless of whether the specific structure comes from dense undergrowth in a wet forest setting or the cover provided by scattered chaparral, the presence of secure and complex ground cover is constant. This structural complexity allows the weasel to move undetected, hunt effectively, and escape predators, making it the primary determinant for suitability, even when prey density varies.
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