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Douglas Fir (Pseudotsuga menziesii)
Douglas fir is a dominant conifer of western North America and a foundational species in many forest ecosystems. It is long-lived, fire-adapted, and structurally influential, shaping forest composition, hydrology, and habitat availability over centuries.
Ecological Role
Douglas fir structures forest canopies, moderates microclimates, and influences watershed function. It provides habitat across vertical layers and stores large amounts of carbon. Downed trees act as nurse logs, supporting regeneration and long-term nutrient cycling.
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