Spruce beetle biology, ecology and management in the Rocky Mountains: An addendum to Spruce Beetle in the rockies

Forests

Volumn 5, Issue 1, 2014, Pages 21-71

  Jenkins, Michael J ^a   Hebertson, Elizabeth G ^b   Steven Munson, A ^b  

^a UTAH STATE UNIVERSITY   (United States)

^b USDA FOREST SERVICE   (United States)

Author keywords

Central Rocky Mountains; Dendroctonus rufipennis; Engelmann spruce; Spruce beetle

Indexed keywords

EID: 84894422221     PISSN: None     EISSN: 19994907     Source Type: Journal    
DOI: 10.3390/f5010021     Document Type: Review

References (254)

1. Schmid, J.M.; Frye, R.H. Spruce Beetles in the Rockies; General Technical Report GTR RM-49; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1977; p. 38.
2. Man, G. Major Forest Insect and Disease Conditions in the United States: 2009 Update; FS-952, USDA Forest Service, Forest Health Technology Enterprise Team: Washington, DC, USA, 2010; p. 28.
3. Dymerski, A.D.; Anhold, J.A.; Munson, A.S. Spruce beetle (Dendroctonus rufipennis) outbreak in Engelmann spruce (Picea engelmannii) in central Utah, 1986-1998. West. N. Am. Nat. 2001, 61, 19-24.
4. DeRose, R.; Long, J.N. Disturbance, structure, and composition: Spruce beetle and Engelmann spruce forests on the Markagunt Plateau, Utah. For. Ecol. Manag. 2007, 244, 16-23.
5. Harris, J. Forest Insect and Disease Conditions Rocky Mountain Region (R2); R2 Conditions Report; US Department of Agriculture, Forest Service, Forest Health Protection, 2012; p. 10. Available online: http://www.fs.usda.gov/goto/r2/fhp/(accessed on 31 October 2013).
6. Wygant, N.D.; Lejeune, R.R. Engelmann Spruce Beetle Dendroctonus obesus (Mann.) (=D. engelmannii Hopk.). In Important Forest Insects and Diseases of Mutual Concern to Canada, the United States and Mexico, Canadian; Department of Forest and Rural Development: Ottawa, Canada, 1967; Publication No. 1180, p. 248.
7. Hebertson, E.G.; Jenkins, M.J. Climate factors associated with historic spruce beetle (Coleoptera: Curculionidae) outbreaks in Utah and Colorado. Environ. Entomol. 2008, 37, 281-292.
8. Fettig, C.J.; Klepzig, K.D.; Billings, R.F.; Munson, A.S.; Nebeker, T.E.; Negrón, J.F.; Nowak, J.T. The effectiveness of vegetation management practices for prevention and control of bark beetle outbreaks in coniferous forests of the western and southern United States. For. Ecol. Manag. 2007, 238, 24-53.
9. Bentz, B.J.; Régnière, J.; Fettig, C.J.; Hansen, E.M.; Hayes, J.L.; Hicke, J.A.; Kelsey, R.G.; Negrón, J.F.; Seybold, S.J. Climate change and bark beetles of the western United States and Canada: Direct and indirect effects. BioScience 2010, 60, 602-613.
10. Werner, R.A.; Holsten, E.H.; Matsuoka, S.M.; Burnside, R.E. Spruce beetles and forest ecosystems in south-central Alaska: A review of 30 years of research. For. Ecol. Manag. 2006, 227, 195-206.
11. Furniss, M.M. The History of Forest Entomology in the Intermountain and Rocky Mountain Areas, 1901-1982; General Technical Report, RMRS-GTR-195; USDA Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA, 2007.
12. Bebi, P.; Kulakowski, D.; Veblen, T.T. Interactions between fire and spruce beetles in a subalpine Rocky Mountain landscape. Ecology 2003, 84, 362-371.
13. Kulakowski, D.; Veblen, T.T.; Bebi, P. Effects of fire and spruce beetle outbreak legacies on the disturbance regime of a subalpine forest in Colorado. J. Biogeogr. 2003, 30, 1445-1456.
14. Veblen, T.T.; Hadley, K.S.; Nel, E.M.; Kitzberger, T.; Reid, M.; Villalba, R. Disturbance regime and disturbance interactions in a Rocky Mountain subalpine forest. J. Ecol. 1994, 82, 125-135.
15. Veblen, T.T.; Hadley, K.S.; Reid, M.S. Disturbance and stand development of a Colorado subalpine forest. J. Biogr. 1991, 18, 707-716.
16. Eisenhart, K.S.; Veblen, T.T. Dendrochronological detection of spruce bark beetle outbreaks in northwestern Colorado. Can. J. For. Res. 2000, 30, 1788-1798.
17. Berg, E.E.; Henry, J.D.; Fastie, C.L.; DeVolder, A.D.; Matsuoka, S.M. Spruce beetle outbreaks on the Kenai Peninsula, Alaska, and Kluane National Park and Reserve, Yukon Territory: Relationship to summer temperatures and regional differences in disturbance regimes. For. Ecol. Manag. 2006, 227, 219-232.
18. Sherriff, R.L.; Berg, E.E.; Miller, A.E. Climate variability and spruce beetle (Dendroctonus rufipennis) outbreaks in south-central and southwest Alaska. Ecology 2011, 92, 1459-1470.
19. Hart, S.J.; Veblen, T.T.; Eisenhart, K.S.; Jarvis, D.; Kulakowski, D. Drought induces spruce beetle (Dendroctonus rufipennis) outbreaks across northwestern Colorado. Ecology 2013, doi:10.1890/13-0230.1. Available online: http://doi.org/10.1890/13-0230.1 (accessed on 17 November 2013).
20. Morris, J.; Brunelle, A.R.; Munson, A.S. Pollen evidence of historical forest disturbance on the Wasatch Plateau, Utah. West. N. Am. Nat. 2010, 70, 175-188.
21. Brunelle, A.; Rehfeldt, J.; Bentz, B.J. Holocene records of mountain pine beetle infestations in the US Northern Rocky Mountains. For. Ecol. Manag. 2008, 255, 836-846.
22. Morris, J.L.; Brunelle, A. Pollen accumulation in lake sediments during historic spruce beetle disturbances in subalpine forests of southern Utah, USA. Holcene 2012, doi:10.1177/0959683612437870. Available online: http://hol.sagepub.com/content/early/2012/03/15/0959683612437870 (accessed on 20 November 2013).
23. Morris, J.L.; Le Roux, P.C.; Macharia, A.N.; Brunelle, A.; Hebertson, E.G.; Zachary, J.L. Organic elemental, and geochemical contributions to lake sediment deposits during severe spruce beetle (Dendroctonus rufipennis) disturbances. For. Ecol. Manag. 2013, 289, 78-89.
24. Wood, S.L. New synonymy and records of Platypodidae and Scolytidae (Coleoptera). Gt. Basin Nat. 1969, 29, 113-128.
25. Furniss, M.M.; Carolin, V.M. Western Forest Insects; Miscellaneous Publication No. 1339; USDA Forest Service, Pacific Northwest Forest and Range Experiment Station: Portland, OR, USA, 1980.
26. Marvaldi, A.E.; Sequeira, A.S.; O'Brien, C.W.; Farrell, B.D. Molecular and morphological phylogenetics of weevils (Coleoptera, Curculionoidea): Do niche shifts accompany diversification? Syst. Biol. 2002, 51, 761-785.
27. Marvaldi, A.E.; Morrone, J.J. Phylogenetic systematics of weevils (Coleoptera: Curculionoidea): A reappraisal based on larval and adult morphology. Insect Syst. Evol. 2000, 31, 43-58.
28. Kuschel, G.A. Phylogenetic classification of Curculionoidea to families and subfamilies. Mem. Entomol. Soc. Wash. 1995, 14, 5-33.
29. Lawrence, J.F.; Newton, A.F., Jr. Families and Subfamilies of Coleoptera. In Biology, Phylogeny, and Classification of Coleoptera: Papers Celebrating the 80th Birthday of Roy A. Crowson; Pakaluk, J., Slipinski, S.A., Eds.; Museum I Instytut Zoologii PAN: Warszawa, Poland, 1995; pp. 779-1006.
30. Morimoto, K.; Kojima, H. Morphological characteristics of the weevil head and phylogenetic implications (Coleoptera, Curculionoidea). ESAKIA 2003, 43, 133-169.
31. Wood, S.L. A reclassification of the genera of Scolytidae (Coleoptera). Gt. Basin Nat. Mem. 1986, 10, 1-126.
32. Triplehorn, C.A.; Johnson, N.F. Borror and Delong's Introduction to the Study of Insects, 7th ed.; Thomson Brooks/Cole: Belmont, CA, USA, 2005; p. 864.
33. American Beetles, Polyphaga: Scarabaeoidea through Curculionoidea; Arnett, R.H., Jr., Thomas, M.C., Skelley, P.E., Franks, J.H., Eds.; CRC Press: Boca Raton, FL, USA, 2002; Volume 2, p. 861.
34. Jordal, B.H. Reconstructing the Phylogeny of Scolytinae and Close Allies: Major Obstacles and Prospects for a Solution. In Proceedings of the Genetics of Bark Beetles and Associated Microorganisms: Third Workshop, Asheville, NC, USA, 20-21 May 2006;
35. Bentz, B., Cognato, A., Raffa, K., Eds.; USDA Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA
36. Bentz, B.J.; Pfrender, M.; Bracewell, R.; Mock, K. Genetic Architecture of the Differences in Fitness Traits among Geographically Separated Dendroctonus ponderosae Populations. In Proceedings of the Genetics of Bark Beetles and Associated Microorganisms: Third Workshop, Asheville, NC, USA, 20-21 May 2006;
37. Bentz, B., Cognato, A., Raffa, K., Eds.; USDA Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA, 2006; RMRS-P-45
38. Cognato, A.I. A Standard DNA Taxonomy for Insects. In Proceedings of the Genetics of Bark Beetles and Associated Microorganisms: Third Workshop, Asheville, NC, USA, 20-21 May 2006; Bentz, B., Cognato, A., Raffa, K., Eds.; USDA Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA, 2006; RMRS-P-45, p. 11.
39. Maroja, L.S.; Bogdanowicz, S.M.; Wallin, K.F.; Raffa, K.F.; Harrison, R.G. Phylogeography of spruce beetles (Dendroctonus rufipennis Kirby) (Curculionidae: Scolytinae) in North America. Mol. Ecol. 2007, 16, 2560-2573.
40. Raffa, K.F.; Aukema, B.H.; Bentz, B.J.; Carroll, A.L.; Hicke, J.A.; Turner, M.G.; Romme, W.H. Cross-scale drivers of natural disturbances prone to anthropogenic amplification: The dynamics of bark beetle eruptions. BioScience 2008, 58, 510-517.
41. Kärvemo, S. Population Dynamics of Tree-Killing Bark Beetles-a Comparison of the European Spruce Bark Beetle and the North American Mountain Pine Beetle. Introductory Research Essay, No. 10; Swedish University of Agricultural Sciences, Department of Ecology: Uppsala, Sweden, 2010.
42. Dyer, E.D.A. Influence of temperature inversion on development of spruce beetle, Dendroctonus obesus (Mannerheim) (Coleoptera: Scolytidae). J. Entomol. Soc. Br. Columbia 1969, 66, 41-45.
43. Dyer, E.D.A. Larval diapause in Dendroctonus obesus (Mannerheim) (Coleoptera: Scolytidae). J. Entomol. Soc. Br. Columbia 1970, 67, 18-21.
44. Dyer, E.D.A.; Hall, P.M. Factors affecting larval diapause in Dendroctonus rufipennis (Mannerheim) (Coleoptera: Scolytidae). Can. Entomol. 1977, 109, 1485-1490.
45. Hansen, E.M.; Bentz, B.J.; Turner, D.L. The physiological basis for flexible voltinism in the spruce beetle (Coleoptera: Scolytidae). Can. Entomol. 2001, 133, 805-817.
46. Hansen, E.M.; Bentz, B.J.; Powell, J.A.; Gray, D.R.; Vandygriff, J.C. Prepupal diapause and instar IV development rates of the spruce beetle, spruce beetle, Dendroctonus rufipennis (Coleoptera: Curculionidae, Scolytinae). J. Insect Phys. 2011, 57, 1347-1357.
47. Hansen, E.M.; Bentz, B.J. Comparison of reproductive capacity among univoltine, semivoltine, and re-emerged parent spruce beetles (Coleoptera: Scolytidae). Can. Entomol. 2003, 135, 697-712.
48. Safranyik, L.; Linton, D.A. Spruce beetle (Coleoptera: Scolytidae) survival in stumps and windfall. Can. Entomol. 1999, 131, 107-113.
49. Hansen, E.M.; Bentz, B.J.; Turner, D.L. Temperature-based model for predicting univoltine brood proportions in spruce beetle (Coleoptera: Scolytidae). Can. Entomol. 2001, 133, 827-841.
50. Logan, J.A.; Schmid, J.M.; Mehl, M.S. A Computer Program to Calculate the Susceptibility of Spruce-Fir Stands to Spruce Beetle Outbreaks; Research Note RM-393; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1980.
51. Wallin, K.F.; Raffa, K.F. Feedback between individual host selection behavior and population dynamics in an eruptive herbivore. Ecol. Monogr. 2004, 74, 101-116.
52. Massey, C.L.; Wygant, N.D. Biology and Control of the Engelmann Spruce Beetle in Colorado; Circular 944; USDA Forest Service: Washington, DC, USA, 1954; p. 35.
53. Miller, L.K.; Werner, R.A. Cold-Hardiness of adult and larval spruce beetles Dendroctonus rufipennis (Kirby) in interior Alaska. Can. J. Zoo. 1987, 65, 2927-2930.
54. Rousseau, J.; Bauce, É.; Lavallée, R.; Guertin, C. Winter mortality and supercooling point of the spruce beetle (Coleoptera: Curculionidae) not affected by host tree vigor in Nova Scotia, Canada. J. Acad. Entomol. Soc. 2010, 8, 1-10.
55. Paine, T.D.; Raffa, K.F.; Harrington, T.C. Interactions among scolytid bark beetles, their associated fungi, and live host conifers. Annu. Rev. Entomol. 1997, 42, 179-206.
56. Cobb, F.W., Jr. Interactions among Root Disease Pathogens and Bark Beetles in Coniferous Forests. In Proceedings of the 7th International Conference on Root and Butt Rots, Vernon and Victoria, BC, Canada, 9-16 August 1988; Morrison, D.J., Ed., International Forestry Research Organizations: Victoria, BC, Canada: 1989; pp. 142-148.
57. James, R.L.; Goheen, D.L. Conifer mortality associated with root disease and insects in Colorado. Plant Dis. 1981, 65, 506-507.
58. McDonald, G.I. Preliminary Report on the Ecology of Armillaria in Utah and the Inland West. In Proceedings of the 46th Western International Forest Disease Work Conference, University of Nevada Campus, Reno, NV, USA, 28 September-2 October 1998; Trummer, L., Ed.; 1999; pp. 85-92.
59. Lewis, K.J.; Lindgren, S.B. Relationship between spruce beetle and tomentosus root disease: Two natural disturbance agents of spruce. Can. J. For. Res. 2002, 32, 31-37.
60. Hebertson, E.G.; Jenkins, M.J. The influence of fallen tree timing spruce beetle brood production. West. N. Am. Nat. 2007, 67, 452-460.
61. Schmid, J.M. Spruce Beetles in Blowdown; Resource Note RM-411; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1981.
62. Werner, R.A.; Holsten, E.H. Factors influencing generation times of spruce beetles in Alaska. Can. J. For. Res. 1985, 15, 438-443.
63. Kulakowski, D.; Veblen, T.T. Subalpine forest development following a blowdown in the Mount Zirkel Wilderness, Colorado. J. Veg. Sci. 2003, 14, 653-660.
64. Hard, J.S. Sequence of trees attacked by spruce beetles in a mature even-aged spruce stand in south-central Alaska. Northwest Sci. 1989, 63, 5-12.
65. Wood, S.L. The bark and ambrosia beetles (Coleoptera: Scolytidae) of North and Central America, a taxonomic monograph. Gt. Basin Nat. Mem. 1982, 6, 1-1359.
66. Byers, J.A. Wind-aided dispersal of simulated bark beetles flying through forests. Ecol. Mod. 2000, 125, 231-243.
67. Hard, J.S. Spruce beetles attack slowly growing spruce. For. Sci. 1985, 31, 839-850.
68. Berryman, A.A. Population Dynamics of Bark Beetles. In Bark Beetles of North American Conifers; Mitton, J.B., Sturgeon, K.B., Eds.; University of Texas Press: Austin, TX, USA, 1982; pp. 264-314.
69. DeRose, R.J.; Long, J.N. Factors influencing the spatial and temporal dynamics of Engelmann spruce mortality during a spruce beetle outbreak on the Markagunt Plateau, Utah. For. Sci. 2012, 51, 1-13.
70. Boone, C.A.; Aukema, B.H.; Bolmann, J.; Carroll, A.L.; Raffa, K.F. Efficacy of tree defense physiology varies with bark beetle population density: A basis for positive feedback in eruptive species. Can. J. For. Res. 2011, 41, 1174-1188.
71. Byers, J.A. Host Tree Chemistry Affecting Colonization in Bark Beetles. In Chemical Ecology of Insects, 2nd ed.; Cardé, R.T., Bell, W.J., Eds.; Chapman and Hall: New York, NY, USA, 1995; pp. 154-213.
72. Wallin, K.F.; Raffa, K.F. Influences of external chemical cues and internal physiological characteristics on the multiple steps of post-landing host selection behavior of Ips pini (Coleoptera: Scolytidae). Environ. Entomol. 2000, 29, 442-453.
73. Safranyik, L.; Linton, D.A. Line Intersect Sampling for the Density and Bark Area of Logging Residue Susceptible to the Spruce Beetle, Dendroctonus rufipennis (Kirby); Information Report 1987, BC-X-295; Government of Canada, Canadian Forestry Service, Pacific Forestry Centre: Victoria, BC, Canada, 1987.
74. Raffa, K.F.; Berryman, A.A. The role of host plant resistance in the colonization behavior and ecology of bark beetles. Ecol. Monogr. 1983, 53, 27-49.
75. Moeck, H.A.; Wood, D.L.; Lindahl, K.Q., Jr. Host selection behavior of bark beetles (Coleoptera: Scolytidae) attacking Pinus ponderosae with special emphasis on the western pine beetle, Dendroctonus brevicomis. J. Chem. Ecol. 1981, 7, 49-83.
76. Cardoza, Y.J.; Moser, J.C.; Klepzig, K.D.; Raffa, K.F. Multipartite symbioses among fungi, mites, nematodes, and the spruce beetle, Dendroctonus rufipennis. Environ. Entomol. 2008, 37, 956-963.
77. Adams, A.S.; Currie, C.R.; Cardoza, Y.; Klepzig, K.D.; Raffa, K.F. Effects of symbiotic bacteria and tree chemistry on the growth and reproduction of bark beetle fungi symbionts. Can. J. For. Res. 2009, 39, 1133-1147.
78. Cardoza, Y.J.; Klepzig, K.D.; Raffa, K.F. Bacteria in oral secretions of an endophytic insect inhibit antagonistic fungi. Ecol. Entomol. 2006, 31, 636-645.
79. Six, D.L.; Bentz, B.J. Fungi associated with the North American spruce beetle, Dendroctonus rufipennis. Can. J. For. Res. 2003, 33, 1815-1820.
80. Solheim, H. A Comparison of Blue-Stain Fungi Associated with the North American Spruce Beetle Dendroctonus rufipennis and the Eurasian Spruce Bark Beetle Ips typographus. In Proceedings of the Forest Pathology Research in the Nordic Countries, SNS Conference, Biri, Norway, 9-12 August 1994; Amlid, D., Ed.; Norsk Institutt for Skorgforskning: As, Norway, 1995; pp. 61-67.
81. Hinds, T.E.; Buffan, P.E. Blue Stain in Engelmann Spruce Trap Trees Treated with Cacodylic Acid; Research Note RM-201; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1971.
82. Bentz, B.J.; Six, D.L. Ergosterol content of fungi associated with Dendroctonous ponderosae and Dendroctonus rufipennis (Coleoptera: Curculionidae, Scolytinae). Entomol. Soc. Am. 2006, 99, 189-194.
83. Klepzig, K.D.; Six, D.L. Bark beetle-fungal symbiosis: Context dependency in complex associations. Symbiosis 2004, 37, 189-205.
84. Aukema, B.H.; Werner, R.A.; Haberkern, K.E.; Illman, B.L.; Clayton, M.K.; Raffa, K.F. Quantifying sources of variation in the frequency of fungi associated with spruce beetles: Implications for hypothesis testing and sampling methodology in bark beetle-symbiont relationships. For. Ecol. Manag. 2005, 217, 187-202.
85. Reynolds, K.M. Relations between activity of Dendroctonus rufipennis Kirby on Lutz spruce and blue stain associate Leptographium abietinum (Peck) Wingfield. For. Ecol. Manag. 1992, 47, 71-86.
86. Safranyik, L.; Shrimpton, D.M.; Whitney, H.S. The Role of Host-Pest Interaction in Population Dynamics of Dendroctonus rufipennis Kirby (Coleoptera: Scolytidae). In Proceedings of the IUFRO/MAB Symposium, Host-Pest Interactions, Irkutsk, USSR, 24-27 August 1981; Isaev, A.S., Ed.; Candian Forest Service: Victoria, BC, Canada, 1981; pp. 1-12.
87. Ohsawa, M.; Langor, D.; Hiratsuka, L.; Yamaoka, Y. Fungi associated with Dendroctonus rufipennis and Polygraphus rufipennis, and white spruce inoculation tests. Can. J. Plant Pathol 2000, 22, 254-257.
88. Cardoza, Y.J.; Paskewitz, S.; Raffa, K.F. Travelling through time and space on the wings of beetles: A tripartite insect-fungi-nematode association. Symbiosis J. 2006, 41, 71-79.
89. Gara, R.I.; Werner, R.A.; Whitmore, M.C.; Holsten, E.H. Arthropod associates of the spruce beetle Dendroctonus rufipennis (Kirby) (Coleoptera: Scolytidae) in spruce stands of south-central and interior Alaska. J. Appl. Entomol. 1995, 119, 585-590.
90. Fayt, P.; Machmer, M.M.; Steeger, C. Regulation of spruce bark beetles by woodpeckers-A literature review. For. Ecol. Manag. 2005, 206, 1-14.
91. Pretzlaw, T.; Trudeau, C.; Humphries, M.M.; LaMontagne, J.M.; Boutin, S. Red squirrels (Tamiasciurus hudsonicus) feeding on spruce bark beetles (Dendroctonus rufipennis): Energetic and ecological implications. J. Mammal. 2006, 87, 909-914.
92. Reynolds, K.M.; Holsten, E.H. The relative importance of risk factors for spruce beetle outbreaks. Can. J. For. Res. 1994, 24, 2089-2095.
93. Chapman, T.B.; Veblen, T.T.; Schoennagel, T. Spatiotemporal patterns of mountain pine beetle activity in the southern Rocky Mountains. Ecology 2012, 93, 2175-2185.
94. Mattson, W.J.; Haack, R.A. The role of drought in outbreaks of plant-eating insects: Drought's physiological effects on plants can predict its influence on insect populations. BioScience 1987, 37, 110-118.
95. Kausrud, K.; Okland, B.; Skarpaas, O.; Grégoire, J.C.; Erbilgin, N.; Stenseth, N.C. Population dynamics in changing environments: The case of an eruptive forest pest species. Biol. Rev. Camb. Philos. Soc. 2012, 87, 34-51.
96. Chapman, T.B.; Veblen, T.T.; Schoennagel, T. Spatiotemporal patterns of mountain pine beetle activity in the southern Rocky Mountains. Ecology 2012, 93, 10, 2175-2185.
97. DeRose, R.J.; Bentz, B.J.; Long, J.N.; Shaw, J.D. Effect of increasing temperatures on the distribution of spruce beetle in Engelmann spruce forests of the Interior West, USA. For. Ecol. Manag. 2013, 308, 198-206.
98. DeRose, R.J.; Long, J.N. Wildfire and spruce beetle outbreak: Simulation of interacting disturbances in the central Rocky Mountains. Ecoscience 2009, 16, 28-38.
99. Edmonds, R.L.; Agee, J.K.; Gara, R.I. Forest Health and Protection; McGraw Hill: New York, NY, USA, 2000; p. 630.
100. Agee, J.K. Fire Ecology of Pacific Northwest Forests; Island Press: Washington, DC, USA, 1993; p. 493.
101. Buechling, A.; Baker, W.L. A fire history from tree rings in a high-elevation forest of Rocky Mountain National Park. Can. J. For. Res. 2004, 34, 1259-1273.
102. Alexander, R.R. Ecology, Silviculture, and Management of the Engelmann Spruce-Subalpine Fir Type in the Central and Southern Rocky Mountains; Agriculture Handbook No. 659; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1987.
103. Jenkins, M.J.; Dicus, C.A.; Hebertson, E.G. Post-Fire Succession and Disturbance Interactions on an Intermountain Subalpine Spruce-Fir Forest. In Fire in Ecosystem Management: Shifting the Paradigm from Suppression to Prescription, Proceedings of the 20th Tall Timbers Fire Ecology Conference, Tall Timbers Research Station, Tallahassee, FL, USA, 7-10 May 1998; Pruden, T.L., Brennan, L.A., Eds.; Volume 459, pp. 219-229.
104. Baker, W.L.; Veblen, T.T. Spruce beetles and fires in the nineteenth-century subalpine forests of western Colorado. Arct. Alp. Res. 1990, 22, 65-80.
105. Wright, H.A.; Bailey, A.W. Fire Ecology: United States and Southern Canada; John Wiley and Sons: New York, NY, USA, 1982; pp. 125-135.
106. Hopkins, A.D. Practical Information on the Scolytid Beetles of North American Forests: Bark Beetles of the Genus Dendroctonus; Part I: Bulletin 83; United States Bureau of Entomology: Washington, DC, USA, 1909; pp. 126-132.
107. Jenkins, M.J.; Page, W.G.; Hebertson, E.G.; Alexander, M.E. Fuels and fire behavior dynamics in bark beetle attacked forests in western North America and implications for fire management. For. Ecol. Manag. 2012, 275, 23-34.
108. Jenkins, M.J.; Hebertson, E.G.; Page, W.G.; Jorgensen, C.A. Bark beetles, fuels, fires and implications for forest management in the Intermountain West. For. Ecol. Manag. 2008, 254, 16-34.
109. Jenkins, M.J.; Runyon, J.B.; Fettig, C.J.; Page, W.G.; Bentz, B.E. Interactions among the mountain pine beetle, fires, and fuels. For. Sci. 2014, doi:10.5849/forsci.13-017.
110. Page, W.G.; Jenkins, M.J.; Runyon, J.B. Spruce beetle-induced changes to Engelmann spruce foliage flammability. For. Sci. 2014, in press.
111. Jorgensen, C.A.; Jenkins, M.J. Fuel complex alterations associated with spruce beetle-induced tree mortality in Intermountain spruce-fir forests. For. Sci. 2011, 57, 232-240.
112. Page, W.G.; Jenkins, M.J. Mountain pine beetle induced changes to selected lodgepole pine fuel complexes within the Intermountain Region. For. Sci. 2007, 53, 507-518.
113. Klutsch, J.G.; Negron, J.F.; Costello, S.L.; Rhoades, C.C.; West, D.R.; Popp, J.; Caissie, R. Stand characteristics and downed woody debris accumulations associated with a mountain pine beetle (Dendroctonus ponderosae Hopkins) outbreak in Colorado. For. Ecol. Manag. 2009, 258, 641-649.
114. Simard, M.; Romme, W.H.; Griffin, J.M.; Turner, M.G. Do mountain pine beetle outbreaks change the probability of active crown fire in lodgepole pine forests? Ecol. Monogr. 2011, 81, 3-24.
115. Jenkins, M.J. Fuel and Fire Behavior in High Elevation Five-Needle Pines Affected by Mountain Pine Beetle. In The Future of High-Elevation, Five-Needle White Pines in Western North America, Proceedings of the High Five Symposium, Missoula, MT, USA, 28-30 June 2010; Keane, R.E., Tomback, D.F., Murray, M.P., Smith, C.M., Eds.; US Department of Agriculture, Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA, 2011; RMRS-P-63, Volume 376, pp. 190-197.
116. Keane, R.E., Tomback, D.F., Murray, M.P., Smith, C.M., Eds.; US Department of Agriculture, Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA, 2011; RMRS-P-63, Volume 376, pp. 190-197.
117. Toone, C.L.; Jenkins, M.J. Influence of mountain pine beetle (Dendroctonus ponderosae Hopkins, Coleoptera: Curculionidae: Scolytinae) on fuels, foliar fuel moisture content, and litter and volatile terpenes in whitebark pine (Pinus albicaulis). Forests 2014, submitted.
118. Donato, D.C.; Harvey, B.; Romme, W.H.; Simard, M.; Turner, M.G. Bark beetle effects of fuel profiles across a range of stand structures in Douglas-fir forests of Greater Yellowstone. Ecol. Soc. Am. 2013, 23, 3-20.
119. McMillin, J.D.; Allen, K.K. Effects of Douglas-fir beetle (Coleoptera: Scolytidae) infestations on forest overstory and understory conditions in western Wyoming. West. N. Am. Nat. 2003, 63, 498-506.
120. Harvey, B.J.; Donato, D.C.; Romme, W.H.; Turner, M.G. Influence of recent bark beetle outbreak on fire severity and post-fire regeneration in montane Douglas-fir forests. Ecology 2013, 94, 2475-2486.
121. Bigler, C.; Veblen, T.T. Changes in litter and dead wood loads following tree death beneath subalpine conifer species in northern Colorado. Can. J. For. Res. 2011, 41, 331-340l.
122. Mielke, J.L. Rate of deterioration of beetle-killed Engelmann spruce. J. For. 1950, 48, 882-889.
123. Schmid, J.M.; Hinds, T.E. Development of Spruce-Fir Stands Following Spruce Beetle Outbreaks; Research Paper RM-131; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1974; p. 16.
124. Bigler, C.; Kulakowski, D.; Veblen, T.T. Multiple disturbance interactions and drought influence fire severity in Rocky Mountain subalpine forests. Ecology 2005, 86, 3018-3029.
125. Kulakowski, D.; Veblen, T.T. Effect of prior disturbances on the extent and severity of wildfire in Colorado subalpine forests. Ecology 2007, 88, 759-769.
126. Schulz, B. Changes in Downed and Dead Woody Material Following a Spruce Beetle Outbreak on the Kenai Peninsula, Alaska; Research Paper PNW-RP-559; USDA Forest Service, Pacific Northwest Research Station: Portland, OR, USA, 2003; p. 10.
127. Rothermel, R.C. How to Predict the Spread and Intensity of Forest and Range Fires; General Technical Report INT-GTR-143; USDA Forest Service, Intermountain Forest and Range Experiment Station: Ogden, UT, USA, 1983; p. 161.
128. Albini, F.A.; Baughman, R.G. Estimating Windspeeds for Predicting Wildland Fire Behavior; Research Paper INT-221; USDA Forest Service, Intermountain Research Station: Ogden, UT, USA, 1979.
129. Byram, G.M.; Jemison, G.M. Solar radiation and forest fuel moisture. J. Agric. Res. 1943, 67, 149-176.
130. Rothermel, R.C.; Wilson, R.A., Jr.; Morris, G.A.; Sackett, S.S. Modeling Moisture Content of Fine Dead Wildland Fuels: Input to the BEHAVE Fire Prediction System; Research Paper INT-359; USDA Forest Service, Intermountain Forest and Range Experiment Station: Ogden, UT, USA, 1986; p. 61.
131. Rothermel, R.C. A Mathematical Model for Predicting Fire Spread in Wildland Fuels; Research Paper INT-115, USDA Forest Service, Intermountain Forest and Range Experiment Station: Ogden, UT, USA, 1972; p. 40.
132. Page, W.G.; Jenkins, M.J. Predicted fire behavior in selected mountain pine beetle infested lodgepole pine. For. Sci. 2007, 53, 662-674.
133. Sandberg, D.V.; Riccardi, C.L.; Schaaf, M.D. Reformulation of Rothermel's wildland fire behavior model for heterogeneous fuelbeds. Can. J. For. Res. 2007, 37, 2438-2455.
134. Schroeder, M.; Buck, C.C. Fire Weather; Agriculture Handbook 360; USDA Forest Service: Washington, DC, USA, 1970.
135. Albini, F.A.; Brown, J.K. Predicting Slash Depth for Fire Modeling; Research Paper INT-221; USDA Forest Service, Intermountain Forest and Range Experiment Station: Odgen, UT, USA, 1978; p. 24.
136. Schoennagel, T.; Veblen, T.T.; Negron, J.F.; Smith, J.M. Effects of mountain pine beetle on fuels and expected fire behavior in lodgepole pine forests, Colorado, USA. PLoS One 2012, 7, 1-14.
137. Van Wagner, C.E. Conditions for the start and spread of crown fire. Can. J. For. Res. 1977, 7, 23-34.
138. Bessie, W.C.; Johnson, E.A. The relative importance of fuels and weather on fire behavior in subalpine forests. Ecology 1995, 76, 747-762.
139. Susott, R.A. Effect of Heating Rate on Char Yield from Forest Fuels; Research Note INT-295; USDA Forest Service, Intermountain Forest and Range Experiment Station: Ogden, UT, USA, 1980; p. 9.
140. Alexander, M.E.; Cruz, M.G. Evaluating a model for predicting active crown fire rate of spread using wildfire observations. Can. J. For. Res. 2006, 36, 3015-3028.
141. Cruz, M.G.; Alexander, M.E. Assessing crown fire potential in coniferous forests of western North America: A critique of current approaches and recent simulation studies. Int. J. Wildland Fire 2010, 19, 377-398.
142. Alexander, M.E.; Cruz, M.G. Are the applications of wildland fire behavior models getting ahead of their evaluation again? Environ. Model. Softw. 2013, 41, 65-71.
143. Knight, D.H. Parasites, Lightning, and the Vegetation Mosaic in Wilderness Landscapes. In Landscape Heterogeneity and Disturbance; Turner, M.G., Ed.; Springer-Verlag: New York, NY, USA, 1987; pp. 59-83.
144. Page, W.G.; Alexander, M.E.; Jenkins, M.J. Wildfire's resistance to control in mountain pine beetle-attacked lodgepole pine forests. For. Chron. 2013, 89, 43-54.
145. Samman, S.; Logan, J. Assessment and Response to Bark Beetle Outbreaks in the Rocky Mountain Area; General Technical Report, RMRS-GTR-62; USDA Forest Service, Rocky Mountain Research Station: Fort Collins, CO, USA, 2000.
146. Goyer, R.A.; Wagner, M.R.; Schowalter, T.D. Current and Proposed Technologies for bark beetle management. J. For. 1998, 96, 29-33.
147. Maser, C.; Trappe, J.M. The Seen and Unseen World of the Fallen Tree; General Technical Report PNW-164; USDA Forest Service, Pacific Northwest Forest and Range Experiment Station: Portland, OR, USA, 1984.
148. Graham, R.L.; Cromack, K., Jr. Mass, nutrient content, and decay rate of dead boles in rain forests of Olympic National Park. Can. J. For. Res. 1982, 12, 511-521.
149. Holsten, E.H.; Their, R.W.; Munson, A.S.; Gibson, K.E. The Spruce Beetle; Insect & Disease Leaflet No. 127; USDA Forest Service: Washington, DC, USA, 1999; p. 12.
150. Helm, A.C.; Johnson, J.E. A Handbook for Forest Vegetation Management in Recreation and Historic Parks; Publication 420-143; Virginia Cooperative Extension, Virginia Polytechnic Institute and State University: Blacksburg, VA, USA, 1995.
151. Veblen, T.T.; Hadley, K.S.; Reid, M.S.; Rebertus, A.J. The response of subalpine forests to spruce beetle outbreak in Colorado. Ecology 1991, 72, 213-231.
152. Aplet, G.H.; Laven, R.D.; Smith, F.W. Patterns of community dynamics in Colorado Engelmann spruce-subalpine fir forests. Ecology 1988, 69, 312-319.
153. Peet, R.K. Forests of the Rocky Mountains. In North American Terrestrial Vegetation; Barbour, M.G., Billlings, W.D., Eds.; Cambridge University Press: New York, NY, USA, 1988.
154. Schmid, J.M.; Mata, S.A. Natural Variability of Specific Forest Insect Populations and Their Associated Effects in Colorado; General Technical Report RM-GTR-275; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1996; p. 14.
155. Wilford, B.H. Engelmann Spruce Beetle Surveys; Review Draft of Proposed Manual, Copy on File at USDA Forest Service; Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1965; p. 121.
156. Meddens, A.J.H.; Hicke, J.A.; Vierling, L.A.; Hudak, A.T. Evaluating methods to detect bark beetle caused tree mortality using single-date and multi-date Landsat imagery. Remote Sens. Environ. 2013, 132, 49-58.
157. Johnson, J.; Greenfield, P.; Munson, A.S. An Evaluation of the Utility of Sub-Pixel Analysis of Thematic Mapper Imagery for the Spruce Beetle Outbreak on the Manti-LaSal National Forest. In Natural Resource Management Using Remote Sensing and GIS, Proceedings of the Seventh Forest Service Remote Sensing Applications Conference, Nassau Bay, TX, USA, 6-10 April 1998; Greer, J.D., Ed.; pp. 276-287.
158. Morris, A.; Baker, M., Jr. Aerial Sketchmapping and GIS within the US Forest Service. In Proceedings of the Integrating GIS with Other Technologies, Esri International User Conference, San Diego, CA, USA, 9-13 July 2001. Available online: http://proceedings.esri.com/library/userconf/proc01/professional/(accessed on 28 October 2013).
159. Knight, F.B. Measurement of Engelmann spruce beetle populations. Ecology 1960, 41, 249-252.
160. Hansen, E.M.; Vandygriff, J.C.; Cain, R.J.; Wakarchuk, D. Comparison of naturally and synthetically baited spruce beetle trapping systems in the central Rocky Mountains. J. Econ. Entomol. 2006, 99, 373-382.
161. Bentz, B.J. Forest Insect and Disease Tally System (FINDIT) User Manual; General Technical Report RMRS-GTR-49; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 2000.
162. Bentz, B.J.; Amman, G.D.; Logan, J.A. Critical assessment of risk classification systems for the mountain pine beetle. For. Ecol. Manag. 1993, 61, 349-366.
163. Shore, T.L.; Safranyik, L.; Lemieux, J. Susceptibility of lodgepole pine stands to the mountain pine beetle: Testing of a rating system. Can. J. For. Res. 2000, 30, 44-49.
164. Schmid, J.M.; Frye, R.H. Stand Ratings for Spruce Beetles; Research Note RM-309; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1976; p. 4.
165. Steele, R.; Williams, R.E.; Weatherby, J.C.; Reinhardt, E.D.; Hoffman, J.T.; Thier, R.W. Stand Hazard Rating for Central Idaho Forests; General Technical Report INT-GTR-332; USDA Forest Service, Intermountain Research Station: Ogden, UT, USA, 1996; p. 29.
166. Hansen, E.M.; Negron, J.F.; Munson, A.S.; Anhold, J.A. A retrospective assessment of partial cutting to reduce spruce beetle-caused mortality in the Southern Rocky Mountains. West. J. Appl. For. 2010, 25, 81-87.
167. Long, J.N. A practical approach to density management. For. Chron. 1985, 61, 23-27.
168. Schmitt, C.L.; Powell, D.C. Rating Forest Stands for Insect and Disease Susceptibility: A Simplified Approach, Version 2.0; BMPMSC-05-01; USDA Forest Service, Pacific Northwest Region, Wallowa-Whitman National Forest, Blue Mountains Pest Management Service Center: La Grande, OR, USA, 2005; p. 20.
169. Daniel, T.W.; Helms, J.A.; Baker, F.S. Principles of Silviculture, 2nd ed.; McGraw-Hill: New York, NY, USA, 1979; p. 500.
170. Bartos, D.L.; Amman, G.D. Microclimate: An Alternative to Tree Vigor as a Basis for Mountain Pine Beetle Infestations; Research Paper INT-400; USDA Forest Service, Intermountain Research Station: Ogden, UT, USA, 1989.
171. Schowalter, T.D.; Caldwell, B.A.; Carpenter, S.E.; Griffiths, R.P.; Harmon, E.R.; Ingram, E.R.; Kelsey, R.G.; Lattin, J.D.; Moldenke, A.R. Decomposition of Fallen Trees: Effects of Initial Conditions and Heterotroph Colonization Rates. In Tropical Ecosystems; Ecology and Management; Singh, K.P., Singh, J.S., Eds.; Wiley Eastern Ltd.: New Delhi, India, 1992; pp. 373-383.
172. Amman, G.D.; McGregor, M.D.; Schmitz, R.F.; Oakes, R.D. Susceptibility of lodgepole pine to infestation by mountain pine beetles following partial cutting of stands. Can. J. For. Res. 1988, 18, 688-695.
173. Sartwell, C.; Stevens, R.E. Mountain pine beetle in ponderosa pine-prospects for silvicultural control in second-growth stands. J. For. 1975, 73, 136-140.
174. Alexander, R.R. Silvicultural Systems and Cutting Methods for Old-Growth Spruce-Fir Forests in the Central and Southern Rocky Mountains; General Technical Report RM-126; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1987.
175. Shaw, J.D. Application of stand density index to irregularly structured stands. West. J. Appl. For. 2000, 15, 40-42.
176. DeRose, R.J.; Long, J.N. Regeneration response and seedling bank dynamics on a Dendroctonus rufipennis-killed Picea engelmannii landscape. J. Veg. Sci. 2010, 21, 377-387.
177. Schmid, J.M. Guidelines for Minimizing Spruce Beetle Populations in Logging Residuals; Research Paper RM-185; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station: Fort Collins, CO, USA, 1977; p. 8.
178. Bentz, B.J.; Munson, A.S. Spruce beetle population suppression in northern Utah. West. J. Appl. For. 2000, 15, 122-128.
179. Alexander, R.R. Partial Cutting in Old Growth Spruce-Fir; Research Paper RM-110; USDA Forest Service, Rocky Mtn. Forest & Range Exp. Station: Fort Collins, CO, USA, 1973; p. 16.
180. Kile, G.A.; McDonald, G.I.; Byler, J.W. Ecology and Disease in Natural Forests. In Armillaria Root Disease, Agricultural Handbook 691; Shaw, C.G., Kile, G.A., Eds.; USDA Forest Service: Washington, DC, USA, 1991; pp. 102-121.
181. Munson, A.S.; Steed, B.; Fettig, C.J. Using Insecticides to Protect Individual Conifers from Bark Beetle Attack in the West; USDA Forest Service, Intermountain and Northern Regions, Forest Health Protection: Ogden, UT, USA, 2011.
182. Fettig, C.J.; Munson, A.S.; McKelvey, S.R.; Bush, P.B.; Borys, R.R. Spray deposition from ground-based applications of carbaryl to protect individual trees from bark beetle attack. J. Environ. Qual. 2008, 37, 1170-1179.
183. Fettig, C.J.; Allen, K.K.; Borys, R.R.; Christopherson, J.; Dabney, C.P.; Eager, T.A.; Gibson, K.E.; Hebertson, E.G.; Long, D.F.; Munson, A.S.; et al. Effectiveness of bifenthrin (OnyxTM) and carbaryl (Sevin® SL) for protecting individual, high-value trees from bark beetle attack (Coleoptera: Curculionidae, Scolytinae) in the western United States. J. Econ. Entomol. 2006, 99, 1691-1698.
184. Fettig, C.J.; Grosman, D.M.; Munson, A.S. Advances in Insecticide Tools and Tactics for Protecting Conifers from Bark Beetle Attack in the Western United States. In Insecticides-Development of Safer and More Effective Technologies; Trdan, S., Ed.; InTech: Rijeka, Croatia, 2013; pp. 472-492.
185. Hastings, F.L.; Holsten, E.H.; Shea, P.J.; Werner, R.A. Carbaryl: A review of its use against bark beetles in coniferous forests of North America. Environ. Entomol. 2001, 30, 803-810.
186. Johnson, K.J. Effectiveness of Carbaryl and Pyrethroid Insecticides for Protection of Engelmann Spruce from Attack by Spruce Beetle (Coleoptera: Scolytidae). Master's Thesis, Utah State University, Logan, UT, USA, 1996.
187. Shea, P.J.; Holsten, E.H.; Hard, J. Bole implantation of systemic insecticides does not protect trees from spruce beetle attack. West. J. Appl. For. 1991, 6, 4-7.
188. Grosman, D.M.; Fettig, C.J.; Jorgensen, C.L.; Munson, A.S. Effectiveness of two systemic insecticides for protecting western conifers from mortality due to bark beetle attack. West J. Appl. For. 2010, 25, 181-185.
189. Borden, J.H. Disruption of Semiochemical-Mediated Aggregation in Bark Beetles. In Insect Pheromone Research: New Directions; Cardé, R.T., Minks, A.K., Eds.; Chapman and Hall: New York, NY, USA, 1997; pp. 421-438.
190. Skillen, E.L.; Berisford, C.W.; Camann, M.A.; Reardon, R.C. Semiochemicals of Forest and Shade Tree Insects in North America and Management Applications; FHTET-96-15; USDA Forest Service, Forest Health Technology Enterprise Team: Morgantown, WV, USA, 1997; p. 182.
191. Shea, P.J. Proceedings of the Symposium on Management of Western Bark Beetles with Pheromones: Research and Development; General Technical Report PSW-GTR-150; USDA Forest Service, Pacific Southwest Research Station: Albany, CA, USA, 1992; p. 53.
192. Wood, D.L.; Stark, R.W.; Waters, W.W.; Bedard, W.D.; Cobb, F.W., Jr. Treatment Tactics and Strategies. In Integrated Pest Management in Pine-Bark Beetle Ecosystems; Waters, W.W., Stark, R.W., Wood, D.L., Eds.; John Wiley and Sons: New York, NY, USA, 1985; pp. 121-140.
193. Silverstein, R.M.; Brownlee, R.G.; Bellas, T.E.; Wood, D.L.; Browne, L.E. Brevicomin: Principal sex attractant in the frass of the female western pine beetle. Science 1968, 158, 889-891.
194. Borden, J.H. Semiochemicals and bark beetle populations: Exploitation of natural phenomena by pest management strategists. Ecography 2006, 12, 501-510.
195. Furniss, M.M.; Orr, P.W. Douglas fir Beetle. Insect & Disease Leaflet, No 5; USDA Forest Service: Washington, DC, USA, 1978; p. 7.
196. Rudinsky, J.A.; Morgan, M.E.; Linsey, L.M.; Putman, T.B. Additional components of the Douglas-fir beetle (Col., Scolytidae) aggregative pheromone and their possible utility in pest control. Zeitschrift fuer Angew. Entomol. 1974, 76, 65-77.
197. Lindgren, B.S.; McGregor, M.D.; Oakes, R.D.; Meyer, H.E. Suppression of spruce beetle attacks by MCH released from bubble caps. West. J. Appl. For. 1989, 4, 49-52.
198. Dyer, E.D.A.; Hall, P.M. Effect of anti-aggregative pheromones 3,2-MCH and trans-verbenol on Dendroctonus rufipennis attacks on spruce stumps. J. Entomol. Soc. Br. Columbia 1977, 74, 32-34.
199. Furniss, M.M.; Baker, B.H.; Hostetler, B.B. Aggregation of spruce beetles (Coleoptera) to seudenol and repression of attraction by methylcyclohexenone in Alaska. Can. Entomol. 1976, 108, 1297-1302.
200. Kline, L.N.; Schmitz, R.F.; Rudinsky, J.A.; Furniss, M.M. Repression of spruce beetle (Coleoptera) attraction by methylcyclohexenone in Idaho. Can. Entomol. 1974, 106, 485-491.
201. Werner, R.A.; Holsten, E.H. Current Status of Research with the Spruce Beetle, Dendroctonus rufipennis. In Application of Semiochemicals for Management of Bark Beetle Infestations, Proceedings of an Informal Conference, Salom, S.M., Hobson, K.R., Eds.; USDA Forest Service, Intermountain Research Station: Ogden, UT, USA, 1985; INT-GTR-318, pp. 23-29.
202. Holsten, E.H.; Shea, P.J.; Borys, R.R. MCH released in a novel pheromone dispenser prevents spruce beetle, Dendroctonus rufipennis (Coleoptera: Scolytidae), attacks in south-central Alaska. J. Econ. Entomol. 2003, 96, 31-34.
203. Ross, D.W.; Daterman, G.E.; Munson, A.S. Evaluation of the anti-aggregation pheromone, 3-methylcyclohex-2-en-1-one (MCH), to protect live spruce from spruce beetle (Coleoptera: Scolytidae) infestation in southern Utah. J. Entomol. Soc. Br. Columbia 2004, 101, 145-146.
204. Ross, D.W.; Gibson, K.E.; Daterman, G.E. Using MCH to Protect Trees and Stands from Douglas-Fir Beetle Infestation; FHTET-2001-09; USDA Forest Service, Forest Health Technology Enterprise Team: Morgantown, WV, USA, 2001.
205. Poland, T.M.; Borden, J.H.; Stock, A.J.; Chong, L.J. Green leaf volatiles disrupt responses by the spruce beetle, Dendroctonus rufipennis, and the western pine beetle, Dendroctonus brevicomis (Coleoptera: Scolytidae) to attractant-baited traps. J. Entomol. Soc. Br. Columbia 1998, 95, 17-24.
206. Werner, R.A.; Hard, J.; Holsten, E.H. The development of management strategies to reduce the impact of the spruce beetle in south-central Alaska. Northwest Environ. J. 1988, 4, 319-358.
207. Poland, T.M.; Borden, J.H. Disruption of secondary attraction of the spruce beetle, Dendroctonus rufipennis, by pheromones of two sympatric species. J. Chem. Ecol. 1997, 24, 151-166.
208. Ross, D.W. Daterman, G.E.; Munson, A.S. Spruce beetle (Coleoptera: Scolytidae) response to traps baited with selected semiochemicals in Utah. West. N. Am. Nat. 2005, 65, 123-126.
209. Lindgren, B.S. A multiple funnel trap for scolytid beetles (Coleoptera). Can. Entomol. 1983, 115, 299-302.
210. Nagel, R.H.; McComb, D.; Knight, F.B. Trap tree method for controlling the Engelmann spruce beetle in Colorado. J. For. 1957, 55, 894-898.
211. Wygant, N.D. Use of Trap Trees for Suppression. In Proceedings of the Conference on Engelmann Spruce Beetle Surveys and Suppression, Ogden, UT, USA, 1960; p. 3.
212. Dyer, E.D.A.; Safranyik, L. Assessment of pheromone-baited trees on spruce beetle population (Coleoptera; Scolytidae). Can. Entomol. 1977, 109, 77-80.
213. Gray, D.R.; Holsten, E.H.; Pascuzzo, M. Effects of semiochemical baiting on the attractiveness of felled and unfelled lethal trap trees for spruce beetle, Dendroctonus rufipennis (Kirby) (Coleoptera: Scolytidae), management in areas of high and low beetle populations. Can. Entomol. 1990, 122, 373-379.
214. Log WizardTM. Available online: http://www.logwizard.com/(accessed on 4 November 2013).
215. Flint, C.G.; McFarlane, B.; Miller, M. Human dimensions of forest disturbance by insects: An international synthesis. Environ. Manag. 2009, 43, 1174-1186.
216. Jones, J. Report on Insect Survey, Sevier Division, Dixie National Forest, Fall 1937, Cedar City, UT; USDA Forest Service, Intermountain Region, Forest Health Protection, Ogden Field Office: Ogden, UT, USA, 1937.
217. Furniss, R.L. Memorandum on Forest Insects on the Dixie National Forest, Utah, September 1940. Bureau of Entomology and Plant Quarantine; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1940.
218. Rice, W. Annual Insect Report, R4, 1944; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1944.
219. Intermountain Region. Engelmann Spruce Bark Beetle Infestation: Wasatch and Duchesne Counties, Utah-Ashley, Uinta and Wasatch National Forests; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1960.
220. Osmond, E.C.; Morgan, R.E.; Knopf, J.A.E. Spring Narrative Accomplishment Report, Bridger National Forest, Insect Control Project, Green River Ranger District; USDA Forest Service, Intermoutain Region: Ogden, UT, USA, 1962.
221. Washburn, R.I.; Knopf, J.A.E. Engelmann Spruce Beetle Conditions: Uinta, Ashley, Wasatch National Forests, Appraisal Survey; Forest Insect Research Report M-5123; USDA Forest Service, Intermountain Forest Range Experiment Station, Division of Forest Insect Research Report: Ogden, UT, USA, 1958.
222. Knopf, J.A.E. Engelmann Spruce Conditions; Forest Pest Management Report R-4, 5230; USDA Forest Service, Branch of Forest Insect and Disease Prevention and Control, Division of Timber Management, Intermountain Region: Ogden, UT, USA, 1962.
223. Klein, W.H. Forest Insect Conditions on the Fishlake National Forest, 1967; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1967.
224. Parker, D.L. A Biological Evaluation of Engelmann Spruce Beetle in Engelmann Spruce, Ephraim and Castle Dale Ranger Districts, Manti-La Sal National Forest; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1973.
225. Klein, W.H. Engelmann Spruce Beetle Infestations, Fishlake National Forest, Region Four, Utah, 1971; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1971.
226. Holland, D.G. Biological Evaluation of Spruce Beetle in Mill Hollow, Heber Ranger District, Uinta National Forest, 1981; Forest Pest Management Report R-4, 83-4; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1983.
227. Holland, D.G. Summary of Insect and Disease Conditions, 1980-1989, Bridger-Teton National Forest; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1990.
228. Knopf, J.A.E. Forest Insect and Disease Conditions in the Intermountain Region during 1980; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1981.
229. Knapp, K. Forest Insect and Disease Conditions in the Intermountain Region during 1984; Forest Pest Management Report R4-INF; USDA Forest Service, Intermountain Region, Forest Insect Laboratory: Fort Collins, CO, USA, 1985.
230. Munson, A.S. A Biological Evaluation of Spruce Beetle Activity within the South Manti Project Area, Manti-Lasal National Forest, Ferron Ranger District; Forest Health Protection Report R4-94-05; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1994.
231. DeBlander, V.; Hansen, D. Geyser Pass Spruce Beetle Survey, Manti-La Sal National Forest; Forest Health Protection Report R4-94-07; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1994.
232. Munson, A.S.; DeBlander, V. A Biological Evaluationof Spruce Beetle Activity on Midway Face, DixieNational Forest, Cedar RD, 1992; Forest Pest Management Report R4-92-03; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1992.
233. LaMadeleine, L. Review of Forest Pest Management Aerial Detection Survey for 1992; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1993.
234. Anhold, J.; DeBlander, V.; Hansen, D. A Biological Evaluation of Spruce Beetle Activity in the Neff's Management Area, Fishlake National Forest, Loa RD, 1992; Forest Pest Management Report R4-93-01; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1992.
235. Munson, A.S.; Anhold, J.; DeBlander, V. A Biological Evaluation of Spruce Beetle in the Timber Canyon Management Unit, Manti-Lasal National, Sanpete Ranger District. Forest Health Protection Report R4-92-04; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1992.
236. Hansen, D. Review of Forest Health Protection 1995 Aerial Detection Survey, Ashley National Forest; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1995.
237. Anhold, J.; Hansen, D. A Biological Evaluation of Spruce Beetle within the La Sal Pass Area, Manti-La Sal National Forest, Moab Ranger District; Forest Health Protection Report R4-1998-01; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2000.
238. Anhold, J. A Review of Forest Health Protection Aerial Detection Surveys, Wasatch-Cache National Forest, Kamas Ranger District; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1996.
239. Hebertson, E.G. A Biological Evaluation of Spruce Beetle Activity in Coyote Gulch, Dixie National Forest, Escalante Ranger District; Forest Health Protection Report R4-2000-02; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2000.
240. Anhold, J.; Dymerski, A. Biological Evaluation of Spruce Beetle along the Monte Cristo Ridge, Wasatch-Cache National Forest; Forest Health Protection Report R4-2000-001; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2000.
241. Hansen, D. Summary of Spruce Beetle Activity in Bear Hodges Analysis Area, Wasatch-Cache National Forest, Logan Ranger District; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1997.
242. Munson, A.S. Summary of the South Tent Analysis Area, Sanpete Ranger District, Manti-Lasal National Forest; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 1996.
243. Hebertson, E.G. A Biological Evaluation of Spruce Beetle Activity in the Indian Creek Drainage, Moab-Monticello Watershed Improvement Project, Manti-La Sal National Forest, Moab-Monticello Ranger District; Forest Health Protection Report R14-2002-03; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2002.
244. Anhold, J. Biological Evaluation of Spruce Beetle in the Abajo Mountains, Monticello Ranger District, Manti-La Sal National Forest; Forest Health Protection Report R4-2000-001; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2000.
245. Hebertson, E.G. A Biological Evaluation of Spruce Beetle Activity in the South Fork of the Beaver River Watershed, Fishlake National Forest, Beaver Ranger District; Forest Health Protection Report R14-2002-02; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2002.
246. Hebertson, E.G. A Biological Evaluation of Spruce Beetle Activity on Barney Top, Dixie National Forest, Escalante Ranger District; Forest Health Protection Report OFO-BE-03-001; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2003.
247. Hebertson, E.G. Fremont River Watershed Assessment Project, Fishlake National Forest, Fremont Ranger District; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2003.
248. Pederson, L.A. A Biological Evaluation of Spruce Beetle Activity in the Lake Project Planning Area, Sanpete and Price Ranger Districts, Manti-La Sal National Forest; Forest Health Protection Report OFO-PUB-04-001; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2004.
249. Hebertson, E.G. A Biological Evaluation of Spruce Beetle Activity in Bryant's Fork, Uinta National Forest, Heber Ranger District; Forest Health Protection Report R14-2004-02, USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2004.
250. Hebertson, E.G. A Biological Evaluation of Spruce Beetle Activity in the Abajo Mountains, Manti-Lasal National Forest, Monticello Ranger District; Forest Health Protection Report OFO-BE-10-03; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2010.
251. Hebertson, E.G. Evaluation of Bark Beetle Projects on the Heber Ranger District, Uinta-Wasatch-Cache National Forest, Heber Ranger District; Forest Health Protection Report OFO-TR-11-06; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2011.
252. Hebertson, E.G. Review of Western Bark Beetle Projects on the Pinedale and Big Piney Ranger Districts, Bridger-Teton National Forest; Forest Health Protection Report OFO-TR-11-17; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2011.
253. Blackford, D.C. A Biological Evaluation of Bark Beetles in the Uinta-Wasatch-Cache National Forest, Evanston, Mountain View, Heber, and Kamas Ranger Districts; Forest Health Protection Report OFO-BE-11-03; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2011.
254. Blackford, D.C. A Biological Evaluation of Forest Health in the Cold Springs Timber Sale Project Area, Uinta-Wasatch-Cache National Forest, Heber Ranger District; Forest Health Protection Report OFO-BE-13-02; USDA Forest Service, Intermountain Region: Ogden, UT, USA, 2013.