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1 <br />1 <br /> Cover <br />' Total absolute cover averaged 50.6 percertlF. Bare soil was <br /> 11.5 percent, litter averaged 10.0 percent, and rock cover was moderately <br /> high with 27.9 percent. Absolute cover by lifeform was as follows: <br /> trees--18.3 percent, shrubs and subshrubs--16.0 percent; perennial ~' <br /> graminoids--12.9 perc:ent,Tperennial forbs--2.4 percent, succulents-- <br /> 0.3 percent, annual forbs--0.3 percent, cryptogams--0.3 percent, and <br />' annual graminoids--0.1 percent (Table 61. <br /> Trees comprised about 33 percent of the relative cover. <br /> Pinyon pine was generally dominant with 12.4 percent absolute cover <br />' and one-seed juniper was a secondary species with 1.9 percent cover. <br /> Ponderosa pine and Douglas-fir averaged only 2.4 and 1.4 percent cover, <br /> respectively. However, in the ponderosa pine/Douglas-fir phase, these <br />' species were much more prevalent. Rocky Mountain juniper Ifurt.ipe~tua <br /> ~copudnaum) accounted for only 0.2 percent cover, and was generally <br /> associated with ponderosa pine and Douglas-fir. <br />' A variety of shrub species accounted for about 32 percent <br /> relative cover. Gambel's oak l(~uezcuo gomGe(iil was The most corrmon <br /> species with 11.7 percent ab=_olute cover. Cover of Gambel's oak varied <br />' from extremely sparse on dry, southern exposures, to very dense thickets <br /> in more mesic areas. Mountain mahogany was alsc: common with 2.9 percent <br /> cover. Other relatively abundant species were broom snakeweed, mountain <br />' snowberry (Symphnaicaapoa u.zeaphi.lual, ninebark 1%hy~vco~pua munagynu~l, <br /> and common chokecherry l/onurtu~ vizginiorto). <br />' Perennial grart:inoid cover was relatively high for a pinyon- <br /> juniper woodland, averaging about 27 percent of the vegetation cover. <br /> Sideoats grama IQou#2.loua cu; tipertdu-(n) and blue grama IGou#elouo <br /> grtnci.lial were the most abundant with 5.5 and 3.3 percent absolute cover, <br />' respectively. Other common species were, in descending order, red three- <br /> awn IAue#i do #oryi~e#al, mountain muhly 161uh1enGezg,io mort.tana), green <br /> needlegrass, elk sedge, mutton bluegrass (ion ,fendleziartal, and little- <br /> seed ricegrass l0.zt~~np~i~ miczort.tha). Minor species included western <br /> wheatgrass, Ross sedge ICo.zex .zoa~iil, Indian ricegrass IOay~npei~ <br /> hymertuide-~1, and needle-and-thread. <br /> <br /> Perennial forbs accounted for about 5 percent of the relative <br /> coyer. Numercus species contributed to cover although none were very <br /> abundant. The more common species tin descending order) were Louisiana <br />' sage, James' eriogonum IE.ziogonum ~ame~ir), fewflowered goldenrod <br /> (So.(idngo ~pn.zei~f.loaol, white thoroughweed lAgerta#irtn hezGacea), and <br /> Shcwy goldeneye (Neliome¢ie mu./#i~f.(uaal. <br />' <br /> Succulent cover was low, averaging only 0.3 percent absolute <br /> cover, which was totally comprised of plains pricklypear. (O/_xtn#in <br /> pa.lSacnrt.thal. Other succulents occurring were strawberry cactus <br />' IEchirzocezeu~ rteirJienGoch(il, Simpsrn hedgehog cactus 1%edlocac.tu~ <br /> ~impaon.iil, and datil yucca (yucca baca#al. <br /> <br />' -9 <br />