Influence of Fire and Southern Pine Beetle on Pine-Dominated Forests in The Linville Gorge Wilderness, North Carolina

Effects of Prescribed Burning on Mortality and Resin Defenses in Old Growth Ponderosa Pine (Crater Lake, Oregon): Four Years of Post-Fire Monitoring

“…The pattern of increased post-fire resin flow identified in several other studies (Santoro et al 2001;Lombardero et al 2006;Knebel and Wentworth 2007) is hereby confirmed to continue for four years (or more) after fire in old-growth ponderosa pines. The results suggest that four years after burning, with some fire injury to tree boles and possibly root crowns (but very low crown scorch), bole resin flow remains higher in burned trees than those in unburned controls.…”

Yellow pine regeneration as a function of fire severity and post-burn stand structure in the southern Appalachian Mountains

“…The long-term sustained coexistence of yellow pine species and the SPB suggests that fire and SPB mortality historically interacted to perpetuate yellow pine forests. In contemporary forests, dead trees resulting from SPB infestations create heavy fuel loads that may result in more intense fires that kill more trees and reduce stand density (Kuykendall, 1978;Knebel and Wentworth, 2007). However, Schowalter et al (1981) suggested that upland pine forests prior to fire suppression were not susceptible to heavy SPB outbreaks because low stand density resulted in reduced tree stress, likely due to reduced competition (Coulson, 1979) and reduced effectiveness of pheromone communication by the SPB (Fares et al, 1980;Thistle et al, 2004).…”

Mitigating old tree mortality in long-unburned, fire-dependent forests: a synthesis

“…Burned, unattacked Virginia pine (Pinus virginiana Miller), table mountain pine (P. pungens Lambert), pitch pine (P. rigida Miller), and eastern white pine in North Carolina produced more resin than unburned, unattacked trees for up to 18 months after fire (Knebel and Wentworth 2007). Resin production was lower 5 months after prescribed fire in Arizona for ponderosa pine trees with greater than 51 percent crown scorch compared to trees with less crown scorch, and only trees with higher crown scorch were attacked by bark beetles (Wallin and others 2003).…”