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Vantage to Pomona Heights Chapter 4 <br />230 kV Transmission Line Project FEIS Environmental Consequences <br /> PAGE 4-56 <br />IMPACT PROJECT ATTRIBUTE POTENTIAL IMPACT AND WILDLIFE RESOURCE EFFECT <br />IMPACT CATEGORY AND LONGEVITY <br />Ground disturbance Construction, structure <br />foundations, access roads. <br />Habitat quantity and quality <br />reduction; habitat <br />degradation. <br />Biological disturbance and <br />Biological change. <br /> <br />Short-term within the footprint <br />from construction. <br /> <br />Long-term from access roads <br />and structures. <br />Fugitive dust generation Construction, maintenance <br />and repair activities. <br />Reduced photosynthesis, <br />impaired species respiration, <br />and reduction in habitat <br />quality. <br />Biological disturbance and <br />Biological change. <br /> <br />Short-term within the footprint <br />from construction. <br /> <br />Long-term from access roads. <br />Exposure to pollutants Chemical spills from <br />construction and <br />maintenance. <br />Reduced survival, population, <br />and growth. <br />Biological disturbance. <br /> <br />Short-term, localized to <br />construction and maintenance <br />sites. <br />Noise, human presence Construction, maintenance, <br />and repair activities. <br />Displace wildlife and disrupt <br />breeding, migration, and <br />foraging. <br />Biological disturbance. <br /> <br />Short-term within the footprint <br />from construction. <br /> <br />Long-term from access roads. <br />Fire Construction and <br />maintenance equipment, <br />human access. <br />Habitat loss and reduction in <br />habitat quality through the <br />potential post-fire <br />establishment of noxious <br />weeds. <br />Biological disturbance and <br />Biological change. <br /> <br />Short-term in the construction <br />footprint for the transmission <br />line. <br /> <br />Long-term for access roads. <br />Avian collisions Conductors, shield wires, <br />and guy-wires. <br />Reduction in avian <br />populations; waterfowl and <br />upland game birds would be <br />most susceptible. <br />Biological disturbance. <br /> <br />Long-term for the Project ROW. <br />Increased and/or <br />enhanced predator <br />habitat <br />Transmission structures Raptors and corvids (e.g., <br />crows, ravens, jays) exploit <br />perching opportunities, <br />resulting in increased <br />predation on small mammal <br />and avian species. <br />Biological disturbance and <br />Biological change. <br /> <br />Long-term for the Project ROW. <br />4.3.1.3 Impact Types <br />Impacts to wildlife resources were measured on multiple scales to include: 1) biological disturbance; 2) <br />biological change; and 3) magnitude. Magnitude was evaluated in terms of intensity and duration. Impacts <br />can vary in intensity from no change or only a slightly discernible change to a full modification of the <br />environment.