. Damage to range grasses by the Zuni prairie dog. Grasses; Forage plants; Prairie dogs. DAMAGE TO EANfiE GRASSES BY THE ZUNI PKAIRIE Dot 11 Table 3.âQuadrat study, giving weights of grasses clipped in fall from perma- nent meter quadrat* under the different conditions as stated, to indicate the amount of forage destroyed by prairie dogs at Williams, Ariz., 1922. Kind of grass. Total- protection area. Rodent- grazed area. Cattle and rodent grazed area. Quantity destroyed by Blue grama Grams. 43. 7 Grams, Grams. Grains. 1 Obtained by subtracting amounts under rodent-graze
. Damage to range grasses by the Zuni prairie dog. Grasses; Forage plants; Prairie dogs. DAMAGE TO EANfiE GRASSES BY THE ZUNI PKAIRIE Dot 11 Table 3.âQuadrat study, giving weights of grasses clipped in fall from perma- nent meter quadrat* under the different conditions as stated, to indicate the amount of forage destroyed by prairie dogs at Williams, Ariz., 1922. Kind of grass. Total- protection area. Rodent- grazed area. Cattle and rodent grazed area. Quantity destroyed by Blue grama Grams. 43. 7 Grams, Grams. Grains. 1 Obtained by subtracting amounts under rodent-grazed conditions from those under total protection. The rodents concerned are chielly prairie dogs; a negligible quantity of forage may have been taken by others. />&0&6/G7-/OAr O/^/r~0se/?G/E'/9A/£> OV/lAST/TyjO/ESTy^Oy^T/P &y/>/&?/#/£: &o&& y?A/z? zjsry /csjâ¬' z/^£- <s-7-oc/r. O <5QO AOOO /SOO 2000 TOTAL +m£y?TG#rtSS /9A/0 OXOPSEZD- â¢SA/V0 D&O/ZS&E0 S?/-0/V£-â- E :. >W:V:::r%W:::::-«aS5asafti B^ a-£\ US g tot/9l /p9/&9<5i£'/zeoae/eTvo/v H &/?//?/£:/?og& D Z^T^T /=b>â¬Â» /.///£-&TOC/C B232I AM Fig. 1.âQuantitative destruction of forage by prairie dogs. Composite record from experiments of four years at Coconino, Ariz., and of one year at Williams, Ariz. - The figures in Table 3 show that under the conditions of this ex- periment prairie dogs destroyed the forage at the rate of 324 pounds of the 390 pounds produced on an acre in the year; or, putting it another way, rodents reduced the available stand of the blue gramaâ the most important forage grass in the regionâby 83 per cent. O 25 SO 7S /oo TOTAL W//£-/?TG#/?SS *W0 0jeO0SEZZ?- â S-/QSS& aeo£>£E:££> alo/vz- â &i$9809$<& S&8S$SSS&8 :^:3^^s«30^E^&$^»P$HI â iiijjijSi liiiBf^i jSZC4£- &y /=>/s*?//e/£r &o&s B232I BM Fig. 2.âPercentage d
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectf, booksubjectgrasses
