Christopher R. Keyes

Contact Info

Department of Forest Management
University of Montana
32 Campus Drive
Missoula , MT 59812, United States

Publications in Fire Ecology

Fire-Excluded Relict Forests in the Southeastern Klamath Mountains, California, USA
Pages: 62-76
DOI: 10.4996/fireecology.0603062

The rare relict ponderosa pine (Pinus ponderosa C. Lawson) mixed-conifer forests of northern California’s Whiskeytown National Recreation Area (WNRA), USA, present a classic example of fire exclusion. Altered fire regimes in this biologically unique area have been documented, but the resulting changes in forest composition and structure have not previously been described. A fully randomized, park-wide sampling of relict forest structure at WNRA reveals a high degree of topographic variability in tree species composition, but strikingly similar changes in recent structural development. A distinct cohort of encroachment trees initiated approximately 64 yr to 67 yr ago with little age variation (2 yr SE), with distinct strata now distinguishing the relict and encroachment cohorts.  [Read More]

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