Another objective for this project is to conduct ecosystem restoration by applying fire to landscape adapted to thrive in fire conditions. Fire is a natural process that plays an integral role in shaping the Yosemite landscape. Densities of shade tolerant tree species, such as white fir and incense cedar, and forest litter and duff have accumulated to unnatural levels in the absence of fire. Through the application of fire, a more natural vegetation composition on the forest floor can flourish.
The effects of prescribed fire on wildlife can include destruction of nesting sites and possible killing of birds, reptiles, or mammals trapped in the fire
Management of the endangered red cockaded woodpeckers presents a special problem because of the copious amounts of dried resin that stretch from the nest cavity toward the ground. The bird requires habitat historically maintained by fire, even though these pitch flows can be ignited, carrying fire up to the cavity.
Prescribed fire does not benefit fish habitat, but it can have adverse effects. Riparian zone (streamside) vegetation may be excluded from prescribed burns to protect high quality plant and animal habitat, and water quality. When shade is removed, water temperatures will increase. Burning conditions are often unfavorable along streams because Of increasing fuel moisture, making line plowing optional. But a buffer zone should always be left. If in doubt, a control line should be put in. Filter strips should be wide enough to prevent over surface flow from the treated area directly into the stream. Common sense should dictate based on the conditions at a given spot. Steeper areas need wider strips. Areas with little litter and duff need wider strips. |