Ecological Scale and Forest Development: Squirrels, Dietary Fungi, and Vascular Plants in Managed and Unmanaged Forests
Andrew B. Carey, Janet Kershner, Brian Biswell, Laura Domínguez de Toledo
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Abstract: Understandingecological processes and their spatial scales is key to managing ecosystems for
biodiversity, especially for species associated with late-seral forest. We focused on 2 species of squirrel (Sci-
uridae: northern flying squirrel, Glaucomys sabrinus, and Townsend's chipmunk,Tamias townsendii) in a
cross-sectional survey of managed and naturalstandsin southwestern Oregon during 1985-89.
We measured vegetation and abundances of squirrelsat >2,000 pointsin 19 stands in 3 seral stages.We described the diets of the squirrels in the stands. We analyzed data at point, stand, and stage scales to identify key processes contributing to biodiversity and scales at which emergent properties (synergistic effects) appeared.