Kathryn Mordecai

Contact Info


Center for Forest Disturbance Science
Forest Service
320 Green Street
Athens , GA 30601, United States

Publications in Fire Ecology

Acute Physiological Stress and Mortality Following Fire in a Long-Unburned Longleaf Pine Ecosystem
Pages: 1-12
DOI: 10.4996/fireecology.0602001

One important legacy of fire exclusion in ecosystems dependent upon frequent fire is the development of organic soil horizons (forest floor) that can be colonized by fine roots. When fire is re-introduced, the forest floor is often consumed by fire and heavy overstory mortality, often delayed by months, results. We hypothesized that the delayed post-fire tree mortality is a manifestation of a cascade of physiological stresses initiated by root damage that can also magnify the impact of other kinds of damage. We investigated the physiological impact of forest floor consumption on longleaf pines (Pinus palustris Mill.) subjected to a wildfire in 2005 in a long-unburned (> 50 years) forest by measuring forest floor consumption, whole tree water use, and leaf chlorophyll content.  [Read More]

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