José Negrón			240 West Prospect Ft. Collins, CO 80526 Phone: (970) 498-1252 FAX: (970) 498-1314 jnegron@fs.fed.us
	Research Entomologist
	Emphasis Areas:
	Biology, ecology, and management of western bark beetles
	Models to estimate probabilities of infestation and extent of mortality based on stand conditions
	Development of sampling approaches for bark beetle populations
	Examining the spatial scales at which bark beetles operate
	Fire and insect interactions
	Quantifying the contribution of insect-caused mortality to fuel loads in forests

Educational Background

Ph.D., Louisiana State University, Baton Rouge, 1988, Entomology
M.S., Louisiana State University, Baton Rouge, 1985, Entomology
B.S., University of Puerto Rico, 1982, Biology

Professional Experience

1993– present. Research Entomologist, Rocky Mountain Research Station, Fort Collins, CO

1991-1993, Entomologist, USDA Forest Service, Forest Pest Management, Region 8, Asheville Field Office, Asheville, NC

1990 – 1991, Research Entomologist, University of Puerto Rico, Agricultural Experiment Station, Rio Piedras, PR

1988 – 1990, Entomologist, USDA Forest Service, Forest Pest Management, Region 8, Alexandria Field Office, Alexandria, LA

Selected Recent Publications

Short, K.C.; Negrón, J.F. 2003. Arthropod responses: a functional approach. In: Friederici, Peter, ed. Ecological restoration of southwestern ponderosa pine forests. Washington, DC: Island Press: 286-305.

Negrón, J.F.; Popp, J. 2003 Roundheaded pine beetle, Dendroctonus adjunctus, and fuel loads in the Sacramento Mountains, New Mexico. In: Omi, P.N.; Joyce, L.A., tech. eds. Fire, fuel treatments, and ecological restoration: Conference proceedings; 2002 April 16-18; Fort Collins, CO. Proc. RMRS-P-29. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 458.

McMillin, J.; Wadleigh, L.; Sieg, C.H.; Negrón, J.; Gibson, K.; Allen, K.; Anhold, J. 2003. The role of wildland fire and subsequent insect attack on ponderosa pine mortality. In: Omi, P.N.; Joyce, L.A., tech. eds. Fire, fuel treatments, and ecological restoration: Conference proceedings; 2002 April 16-18; Fort Collins, CO. Proc. RMRS-P-29. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station: 457.

Negrón, J.F.; Wilson, J.L. 2003. Attributes associated with probability of infestation by the piñon ips, Ips confusus (Coleoptera: Scolytidae), in piñon pine, Pinus edulis. Western North American Naturalist. 63(4): 440-451.

Negrón, J.F.; Anhold, J.A.; Munson, S.A. 2001. Within-stand spatial distribution of tree mortality caused by the Douglas-fir beetle (Coleoptera: Scolytidae). Environmental Entomology. 30(2): 215-224.

Negrón, J.F.; Shepperd, W.D.; Mata, S.A.; Popp, J.B.; Asherin, L.A.; Schoettle, A.W. 2001. Solar treatments for reducing survival of mountain pine beetle in infested ponderosa and lodgepole pine logs. Res. Pap. RMRS-RP-30. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 11 p.

Negrón J.F.; Schaupp W.C.; Johnson E. 2000. Development and validation of a fixed-precision sequential sampling plan for estimating brood adult density of Dendroctonus pseudotsugae (Coleoptera: Scolytidae). The Canadian Entomologist. 132: 119-133.

Negrón J.F.; Wilson J.L.; Anhold J.A. 2000. Stand conditions associated with roundheaded pine beetle (Coleoptera: Scolytidae) infestations in Arizona and Utah. Environmental Entomology. 29: 20-27.

Lundquist J.E.; Negrón J.F. 2000. Endemic forest disturbances and stand structure of ponderosa pine (Pinus ponderosa) in the Upper Pine Creek Research Natural Area, South Dakota, USA. Natural Areas Journal. 20: 126-132.

Negrón, J.F.; Schaupp, W.C.; Gibson, K.E.; Anhold, J.; Hansen, D.; Thier, R.; Mocetini, P. 1999. Estimating extent of mortality associated with the Douglas-fir beetle in the Central and Northern Rockies. Western Journal of Applied Forestry. 14: 121-127.

Negrón, J.F. 1998. Probability of infestation and extent of mortality associated with the Douglas-fir beetle in the Colorado Front Range. Forest Ecology and Management. 107: 71-85.

Negrón, J. 1997. Estimating probabilities of infestation and extent of damage by the roundheaded pine beetle in ponderosa pine in the Sacramento Mountains, New Mexico. Canadian Journal of Forest Research. 27: 1936-1945.

Negrón, J.F. 1995. Cone and seed insects associated with piñon pine. In: Shaw, D.W.; Aldon, E.F.; LoSapio, C., tech. coords. Proceedings of the Symposium Desired Future Conditions for Pinon-Juniper Ecosystem; 1994, August 8-12; Gen. Tech. Rep. RM-258. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station: 97-106.

Negrón, J.F.; Clarke, S.R. 1995. Scale insect outbreaks associated with new pyrethroids in a loblolly pine seed orchard. Journal Entomological Science. 30: 149-153.

Clarke, S.R.; Negrón, J.F.; DeBarr, G.L. 1992. Effects of four pyrethroids on scale insect (Homoptera) populations and their natural enemies in loblolly and shortleaf pine seed orchards. Journal of Economic Entomology. 85: 1246-1252.