Harper, V.L. 1944. Effects of fire on gum yields of longleaf and slash 

 pines. Circular No. 710. Washington, DC: U.S. Department of 

 Agriculture. 22 p. 



Harrington, M.G. 1985. Effects of spring, summer, and fall burning 

 on gambel oak in a southwestern ponderosa pine stand. Forest 

 Science 31: 156-163. 



Harrington, M.G. 1993. Predicting Pinus ponderosa mortality from 

 dormant season and growing season fire injury. International 

 Journal of Wildland Fire 3: 65-72. 



Harvey, A.E.; Jurgensen, M.F.; Graham, R.T. 1988. The role of 

 woody residues in soils of ponderosa pine forests. In: Baumgartner, 

 D.M.; Lotan, J.E., eds. Proceedings, Ponderosa pine: the species 

 and its management. 1987 Sept. 29-30, Spokane, WA: Washington 

 State University, Cooperative Extension Service: 141-147. 



Kaufmann, M.R.; Stevens, R.E. 1984. Vigor of ponderosa pine 

 trees surviving mountain pine beetle attack. Res. Note RM-448. 

 Fort Collins, CO: U.S. Department of Agriculture, Forest Service, 

 Rocky Mountain Forest and Range Experiment Station. 5 p. 



Keen, F.P. 1929. How soon do yellow pine snags fall? Journal of 

 Forestry 27: 735-737. 



Keen, F.P. 1955. The rate of natural falling of beetle-killed ponde- 

 rosa pine snags. Journal of Forestry 53: 720-724. 



Kimmey, J.W. 1955. Rate of deterioration of fire-killed timber in 

 California. Circular No. 962. Washington, DC: U.S. Department 

 of Agriculture. 22 p. 



Lieutier, F.; Berryman, A. A. 1988. Preliminary histological inves- 

 tigations of the defense reactions of three pines to Ceratocystis 

 clavigera and two chemical elicitors. Canadian Journal of Forest 

 Research 18: 1243-1247. 



Lorio, P.L. 1986. Growth-differentiation balance: a basis for under- 

 standing southern pine beetle-tree interactions. Forest Ecology 

 and Management 14: 259-273. 



Lowell, E.C.; Willits, S.A.; Krahmer, R.L. 1992. Deterioration of 

 fire-killed and fire-damaged timber in the Western United 

 States. Gen. Tech. Rep. PNW-292, Portland, OR: U.S. Depart- 

 ment of Agriculture, Forest Service, Pacific Northwest Forest 

 and Range Experiment Station. 27 p. 



Lyon, L.J. 1977. Attrition of lodgepole pine snags on the Sleeping 

 Child Burn, Montana. Res. Note INT-219. Ogden, UT: U.S. 

 Department of Agriculture, Forest Service, Intermountain For- 

 est and Range Experiment Station. 4 p. 



Lyon, L.J. 1984. The Sleeping Child Burn-21 years of postburn 

 change. Res. Pap. INT-330. Ogden, UT: U.S. Department of 

 Agriculture, Forest Service, Intermountain Forest and Range 

 Experiment Station. 17 p. 



Matson, P.A.; Hain, F.P.; Mawby, W. 1987. Indices of tree suscepti- 

 bility to bark beetles vary with silvicultural treatment in a 

 loblolly pine plantation. Forest Ecology and Management 22: 

 107-118. 



Miller, J.M.; Keen, F.P. 1960. Biology and control of the western 

 pine beetle. Misc. Pub. No. 800. Washington, DC, U.S. Depart- 

 ment of Agriculture, Forest Service, 381 p. 



Mitchell, R.G.; Martin, R.F. 1980. Fire and insects in pine cultures 

 in the Pacific Northwest. In: Martin, Robert F., and others, eds. 

 Proceedings of the sixth conference on fire and forest meteorol- 

 ogy; 1980 April 22-24; Seattle, WA: Society of American Forest- 

 ers: 182-190. 



Owen, D.R.; Lindahl, K.Q.; Wood, D.L.; Parmeter, J.R. 1987. 

 Pathogenicity of fungal isolates from Dendroctonus valens, 

 D. brevicomis, and D. ponderosae to ponderosa pine seedlings. 

 Phytopathology 77: 631-636. 



Raffa, K.F.; Berryman, A.A. 1982. Physiological difference between 

 lodgepole pines resistant and susceptible to the mountain pine 

 beetle and associated microorganisms. Environmental Ento- 

 mology 11: 486-492. 



Raffa, K.F.; Berryman, A.A. 1983. The role of host plant resistance 

 in the colonization behavior and ecology of bark beetles (Co- 

 leoptera: Scolytidae) Ecological Monographs 53: 27-49. 



Raphael, M.G.; Morrison, M.L. 1987. Decay and dynamics of snags 

 in the Sierra Nevada, California. Forest Science 33: 774-783. 



Ryan, KC. 1993. Effects of fire-caused defoliation and basal girdling 

 on water relations and growth of ponderosa pine. Missoula, MT: 

 University of Montana. 80 p. Dissertation. 



SAS. 1993. SAS/Insight users guide. Version 6. Second Edition. SAS 

 Institute. 490 p. 



Schmid, J.M.; Mata, S.A.; McCambridge, W.F. 1985. Natural 

 falling of beetle-killed ponderosa pine. Res. Note RM-454. Fort 

 Collins, CO: U.S. Department of Agriculture, Forest Service, 

 Rocky Mountain Forest and Range Experiment Station. 3 p. 



Thomas, J.W.; Anderson, R.G.; Masser, C; Bull, E.L. 1979. Snags. 

 In: Thomas, J.W., ed. Wildlife habitats in managed forests, the 

 Blue Mountains of Oregon and Washington. Agriculture Hand- 

 book No. 553. Washington, DC: U.S. Department of Agriculture, 

 Forest Service. 60-77. 



Waring, R.H.; Pitman, G.B. 1985. Modifying lodgepole pine stands 

 to change susceptibility to mountain pine beetle attack. Ecology 

 66: 889-897. 



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