NEPA--Environmental Assessment

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ighorn sheep herd. Unpublished report, Colorado Division of Wildlife, Fort Collins, CO. 6 pp. Dick-Peddie, William A. 1993. New Mexico vegetation, past, present, and future. University of NM Press. DuBois, C. 1903. Report on the proposed San Juan Forest Reserve, Colorado. Unpublished Report on file at the supervisor’s office of the San Juan National Forest. Dunford, E.G. 1954. Surface runoff and erosion from pine grasslands of the CO Front Range. Journal of Forestry 52:923-927. EPA. 1987. Nonpoint Source Controls and Water Quality Standards. Environmental Protection Agency. Memo #NPS: FY-87-49, August 19, 1987. EPS. 2009. A SocioEconomic Profile of Montrose County, Colorado. Produced by the Economic Profile System, www.headwaterseconomics.org Executive Order 12898. 1994. Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations. Forsling, C.L. 1931. A study of the influence of herbaceous plant cover on surface runoff and soil erosion in relation to grazing on the Wasatch Plateau in Utah. Tech Bulletin 220, USDA. FSH 2200. 2005. Range Management Handbook. USDA Forest Service. FSH 2209.13. 2007. Grazing Permit Administration Handbook. USDA Forest Service, R2 Interim Directive # 2209.13-2007-8. FSH 2509.25. 2006. Watershed Conservation Practices Handbook. USDA Forest Service, Rocky Mountain Region. Gary, Howard L. and Joch C. Adams. 1985. Indicator bacteria in water and stream sediments near the Snowy Range in southern Wyoming in Water, Air, and Soil Pollution 25 (1985) 133-144. 0049-6979/85.15.D. Reidel Publishing Company. George, J. L., R. Kahn, M. W. Miller, and B. Watkins. 2008. Colorado bighorn sheep management plan 2008 – 2018. Colorado Division of Wildlife, 6060 Broadway, Denver, CO, 80216. 96 pp. Heitschmidt and Stuth. 1993. Grazing Management - An Ecological Perspective, Timber Press Inc. Hoffman, R. W. 2006. White-tailed ptarmigan (Lagopus leucura): a technical conservation assessment. USDA Forest Service, Rocky Mountain Region. Available on line at: http://www.fs.fed.us/r2/projects/scp/assessments/whitetailedptarmigan.pdf. Accessed 02/19/2009. Holechek, J.L,Gomes, H.,Molinar, F.Galt, D. 1998; Grazing Intensity: Critique and Approach.Rangelands 20(5). Holechek, J.L. 1981. Livestock Grazing Implications on Public Lands; A Viewpoint. JRM 34;251- 254. Johnson. 1962. Larison, J. R., G. E. Likens, J. W. Fitzpatrick, and J. G. Crock. 2000. Cadmium toxicity among wildlife in the Colorado Rocky Mountains. Nature 406:181-183. Larison, J. R., G. E. Likens, J. W. Fitzpatrick, and J. G. Crock. 2000. Cadmium toxicity among wildlife in the Colorado Rocky Mountains. Nature 406:181-183. Lull, H.W. 1959. Soil compaction on forest and range lands. Miscellaneous publication 769, USDA. 107
Martin, K.D., T.J. Schommer, and V.L. Coggins. 1996. Literature review regarding the compatibility between bighorn and domestic sheep. Proc. Bienn. Symp. North. Wild Sheep and Goat Counc. 10:72-77. McNaughton, S.J. 1983. Compensatory plant growth as a response to herbivory. Oikos 40:329-336 Nelson, D. L. 1998. Brown-capped rosy-finch. Pages 522-523 in Colorado breeding bird atlas, H. E. Kingery, ed. Colorado Bird Atlas Partnership and Colorado Div of Wildlife, Denver, CO. Onderka, D.K. and W.D. Wishart. 1984. A major bighorn sheep die-off from pneumonia in southern Alberta. Proc. Bienn. Symp. North. Wild Sheep and Goat Counc. 4:356-363. Orr, H.K. 1975. Recovery from soil compaction on bluegrass range in the Black Hills. P.L. 104-19. 1995. Rescissions Act. P.L. 86-517. 1960. Multiple Use Sustained Yield Act. P.L. 91-190. 1970. The National Environmental Policy Act of 1969, as Amended. P.L. 94-579. 1976. Federal Land Policy and Management Act. Pannell. 2006. Soil Survey of Animas-Dolores Area, Colorado, Parts of Archuleta, Dolores, Hinsdale, La Plata, Montezuma, San Juan, and San Miguel Counties. [CD-ROM]. United States Department of Agriculture, Natural Resources Conservation Service. Paulsen, Harold A. Jr. 1960. Plant Cover and Forage Use of Alpine Sheep Ranges in the Central Rocky Mountains. Penn. State Univ. 2001. Economic Base Assessment of Delta and Montrose Counties, Colorado. Monitoring and Assessment Team, Institute for Policy Research and Evaluation, Pennsylvania State Univ. Prichard, Don. 1998. A User Guide to Assessing Proper Functioning Condition and Supporting Science for Lotic Areas, BLM Technical Reference 1737-15. Quimby, Chuck. 2006. Draft. A Practical Approach to Adaptive Management. USDA Forest Service Rocky Mountain Region. Unpublished. Raby, Kim S. 2005. Use of Water Quality Data for Land Management Decisions: A Case Study in San Juan County, Colorado. University of Colorado. Redders, Jeffery S. 2003. Riparian Area and Wetlands Classification for the San Juan National Forest. Unpublished. Redders, Jeffery. 2009 Silverton Range Landscape Biological Evaluation for Plants. Romme, W.H., M.L. Floyd, D. and Hanna, H.D. Final Report. 2006. Landscape Condition Analysis for the South Central Highlands Section, Southwestern Colorado and Northwestern New Mexico. Ruggiero, L. F., K. B. Aubry, S. W. Buskirk, G. M. Koehler, C. J. Krebs, K. S. McKelvey, and J. R. Squires. 2000. The scientific basis for lynx conservation: qualified insights. Pages 443-454 in Ruggiero, L.F., K. B. Aubry, S. W. Buskirk, G. M. Koehler, C. J. Krebs, K. S. McKelvey, and J. R. Squires. (Tech. Eds.). Ecology and conservation of lynx in the United States. Univ. Press of Colorado. Boulder, CO. 480 pp. San Juan National Forest. 1992. Land and Resources Management Plan, as Amended. USDA Forest Service Rocky Mountain Region. 108
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United States Department of Agricul
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Silverton Landscape Grazing Analysi
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These issues led the agency to deve
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administered with shared facilities
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Engine Creek/Deer Creek Allotment T
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Gladstone Allotment This allotment
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Gulch. In 1956, the numbers decreas
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Figure 1-1. Project Analysis Area 1
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Specific Management Emphasis Areas
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Livestock Grazing Permits Livestock
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Figure 1-3. Management Emphasis Are
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Desired Conditions for Bighorn: Red
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Figure 1-4. 2008 Data Collection Po
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Figure 1-6. Wilderness Overlap 24
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Issues ____________________________
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CHAPTER 2 - ALTERNATIVES This chapt
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Alternative Livestock Bedding 2 3 S
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Alternative Noxious Plants/Invasive
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Table 2-2. Project Design Criteria
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Alternative Minimization of Threat
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Alternative 2 - Current Management_
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Elk Creek Allot • Do not use the
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Figure 2-1. Proposed Action - Avoid
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Monitoring for Alternative 3 Monito
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• Photographs and Photo-points: P
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years in an emergency situation, su
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Comparison of Alternatives ________
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Water Quality _____________________
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ENVIRONMENTAL CONSEQUENCES Alternat
Page 59 and 60: from water or bedgrounds (Arnold an
Page 61 and 62: 2008). It differs from the wetland
Page 63 and 64: Red Mountain Allotment Yellow toadf
Page 65 and 66: unlikely that any of these species
Page 67 and 68: Recreation Special Use Permits for
Page 69 and 70: livestock management would not chan
Page 71 and 72: Concurrent to this grazing analysis
Page 73 and 74: Alternative 2 Habitat conditions fo
Page 75 and 76: intensity on alpine plants appeared
Page 77 and 78: the other two species due to the co
Page 79 and 80: lack bighorn sheep escape cover. Th
Page 81 and 82: trailing route, and lack of bighorn
Page 83 and 84: Similar to Alternative 2, selecting
Page 85 and 86: ptarmigan is expected under Alterna
Page 87 and 88: CUMULATIVE IMPACTS Global warming i
Page 89 and 90: Wildlife - Management Indicator Spe
Page 91 and 92: and it will not be discussed in det
Page 93 and 94: Selecting Alternative 2 would have
Page 95 and 96: for MIS in the landscape. Wildlife
Page 97 and 98: The alpine tundra group would benef
Page 99 and 100: species of conservation concern as
Page 101 and 102: management options, while others ma
Page 103 and 104: prior to evaluating them for the NR
Page 105 and 106: present state. In general, where un
Page 107 and 108: CHAPTER 4 - CONSULTATION AND COORDI
Page 109: APPENDIX B - CITATIONS AND REFERENC
Page 113 and 114: Regional Office, Durango, CO. Weste
Page 115 and 116: Species Habitat Present In the Spec
Page 117 and 118: Species Mammals (13) Allen’s big-
Page 119 and 120: MIS Species Preferred Habitat Broug
Page 121 and 122: Likelihood of Species Status* Prefe
Page 123 and 124: APPENDIX D - BIGHORN RISK ASSESSMEN
Page 125 and 126: Silverton Grazing Risk Assessment T
Page 127 and 128: Silverton Grazing Risk Assessment a
Page 129 and 130: Silverton Grazing Risk Assessment b
Page 131 and 132: Silverton Grazing Risk Assessment N
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Page 139 and 140: Silverton Grazing Risk Assessment M
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Page 147 and 148: Silverton Grazing Risk Assessment m
Page 151 and 152: Silverton Grazing Risk Assessment H
Page 153 and 154: Silverton Grazing Risk Assessment F
Page 155 and 156: Silverton Grazing Risk Assessment F
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NEPA--Environmental Assessment

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