Final Environmental Impact Statement Rio de los Pinos Vegetation ...

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Final Environmental Impact Statement Rio de los Pinos Vegetation Management Project Table 3.9-1 Summary of the MIS Evaluation. Habitats Rationale for Selection in MIS Represented Forest Plan Pygmy nuthatch Mature to late Cavity nester; timber and/or fire successional ponderosa management may affect quantity and/or pine (LTA 5; Structure quality of habitat, including snags; may Class 5) represent effects to other primary and secondary cavity nesters. Lincoln’s sparrow Riparian (LTA 10 -- Riparian species tied to different willow) structural elements susceptible to grazing and other activities within riparian areas; monitored as a group with Wilson’s warbler due to close habitat associations with willow communities at various elevations. Wilson’s warbler Riparian (LTA 10 -- Riparian species tied to different willow) structural elements susceptible to grazing and other activities within riparian areas; monitored as a group with Lincoln’s sparrow due to close habitat associations with willow communities at various elevations. Vesper sparrow Grasslands (LTAs 8, 9, Uses a narrow set of habitat conditions and 12) for nesting – sparsely or patchily distributed shrubs with abundant grass cover on the Forest; may be affected by grazing activities. Indicator of upland bunchgrass/shrub communities. 1 LTA = Landtype Association (defined in EIS, Appendix B and in the Forest Plan FEIS p. 3-41). 2 Structure Class (defined in EIS, Appendix C and in the Forest Plan FEIS p. 3-43). Rationale for Detailed Evaluation for the Analysis Area Chapter 3 – Affected Environment & Environmental Consequences Page 3-54 Rationale for Dismissal From Detailed Analysis No habitat within Analysis Area. Very limited habitat within Analysis Area. Habitat within Analysis Area would not be impacted by timber harvest so no effect. Very limited habitat within Analysis Area. Habitat within Analysis Area would not be impacted by timber harvest so no effect. Limited habitat within Analysis Area. Habitat within Analysis Area will not be impacted by timber harvest, so no effect. Table 3.9-2 is a summary of the effects of each alternative upon the MIS evaluated for the Rio de los Pinos project. Additional information for each species can be found in the Forest’s MIS Species Assessments (USDA Forest Service 2003).
Final Environmental Impact Statement Rio de los Pinos Vegetation Management Project Table 3.9-2. Summary of Effects to MIS, by Alternative. ALTERNATIVES 1 2 No Action Forest Health Habitat / Population Information Brown Creeper A small percentage of Brown Creeper Approximately 0.1 percent of spruce Breeding Bird survey data spruce fir Forestwide will fir Forestwide will be more rapidly indicate a slow population be gradually impacted by impacted by salvage activities. increase continent-wide, beetles. Sufficient snags Disturbance could occur from human with a larger increase in should remain for brown activity associated with timber Colorado and surrounding creepers to nest and forage. harvest. Some nest destruction could states. Approximately Some mature green trees also occur with the removal of 634,000 acres of habitat is will remain, however, timber. Sufficient snags should estimated Forestwide. some individuals may remain for brown creepers to nest disperse into healthier, and forage. Some mature green trees mature spruce-fir habitat. will remain, however, some No discernable individuals may disperse into effect on population healthier, mature spruce-fir habitat. persistence or viability No discernable at the Forest Level. effect on population persistence or viability at the Forest Level. 3 Forest and Watershed Health Less than 0.1 percent of spruce fir Forestwide will be more rapidly impacted by salvage activities. The portion not treated for watershed protection will be gradually impacted by beetles. Disturbance could occur from human activity associated with timber harvest. Some nest destruction could also occur with the removal of timber. Sufficient snags should remain for brown creepers to nest and forage. Some mature green trees will remain, however, some individuals may disperse into healthier, mature sprucefir habitat. No discernable effect on Population persistence or viability at the Forest Level. Chapter 3 – Affected Environment & Environmental Consequences Page 3-55
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