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You are here >1Up Info > Wildlife, Animals, and Plants > Plant Species > Shrub > Species: Ephedra nevadensis | Nevada Ephedra
 

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FIRE EFFECTS

SPECIES: Ephedra nevadensis | Nevada Ephedra
IMMEDIATE FIRE EFFECT ON PLANT : Underground regenerative structures commonly survive when aboveground vegetation is consumed by fire [28]. However, under certain circumstances, plants may be killed [22,32]. The effects of fire on Nevada ephedra varies according to fire intensity and severity, and season of burn. Following a hot June wildfire, aboveground foliage was killed on 84 percent of Nevada ephedra at this site. Approximately 76 percent of all plants were completely killed [14]. DISCUSSION AND QUALIFICATION OF FIRE EFFECT : NO-ENTRY PLANT RESPONSE TO FIRE : Nevada ephedra often sprouts vigorously from the roots after aboveground vegetation is killed or damaged by fire [28]. Recovery is generally rapid when plants sprout prolifically. In a central Utah study, significant amounts of Nevada ephedra were present within 1 year after fire [28]. However, response may vary according to the timing, intensity, and severity of burn. Only 9 percent of all top-killed plants sprouted after a hot June wildfire in the Sonoran Desert of Arizona [14]. Nevada ephedra can sometimes reoccupy a site through seed, but recovery may be relatively slow. DISCUSSION AND QUALIFICATION OF PLANT RESPONSE : Nevada ephedra sprouted readily after a mid-summer wildfire in central Utah. Coverage values and biomass was documented as follows [28]: Measured Preburn Control (Unburned) Burned (percent) 1981 1982 1983 1981 1982 1983 1981 1982 1983 2.5 2.5 2.3 1.0 4.3 2.0 -- 1.3 1.0 Means (kg/ha) - herbage standing crops 1981 1982 1983 23.98 10.18 95.01 Little sprouting occurred after a hot June wildfire in Arizona. Density and cover on burned and unburned plots were as follows [14]: unburned burned 1980 1981 density (#/ha) 40 -- 5 cover (%) 0.9 -- trace FIRE MANAGEMENT CONSIDERATIONS : NO-ENTRY

Related categories for Species: Ephedra nevadensis | Nevada Ephedra

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Information Courtesy: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Fire Effects Information System

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