Koford Cynomys ludovicianus July 29 28,1955 Wind Cave Nat'l Park, S. Dakota change to Androp. scop. dominance & ground steeper & with more large rocks. (See state 15-25% slope). No Asm at #1 stake, then (to N) (upslope) Asm comes in & increases to about 5% (15% slope), Bgy - Bda still present, some Aristida, also more lawn ground. Then Carey, Asm, Berrouer (cold) high on slope not now occupied. Many berrouers thought colony not used; No apparent mean in Asm berrouers in 1947 area since 1951 (same new holes). Amounts: Bgy; 20'x1½'. Silt loam (judged). Patches of Bija near colony but irregular, & generally not near C.L. berrouers. (Distrib. Bija irregular all slopes in ph. II W. end Gabriel Dam town where new holes, 90% Bgy-Bda. Many sedistolbs Asm cut; also stalks Asm, Bga, Bgy. II Idea: effect C.L. on veg. Asm largely on condition at x invasion. Bija-Asm mixture → Asm → weeks, Bgy- Bda-Asm mixture → thin Asm (spati Bda) → weeks. II Lower Sanctuary- town. On W. slope, 10%, many mds. (10 acre. 6 yds. apart); most veg. Bright green Bija, pop. 4-5" tall, some Vbs. There were about thick Arist. found at upslope edge. At S end this colony main way. 12 acres frag. On E. slope (10%), with dry sticking Lappo. redaw. mixed; & some Asm Aristida, at upslope edge, Asm increases or Arist. frag. taller; then same Bija, Carey mixed. The soil thick Bija with Asm (uphill side colony). II At Upper Sunset town, 11 in 2 A plot (no sure joins !), but 13 in N. acre of area (edge). Within area concentration, no obvious vegetation diff from when few dogs; little Asm (5%), no Bgy. Androp. scop. - not in even on 5% slope, where 10 "tself" but bordering this an area where Asm grazed to 3". & forb. Some C.L. activity there. In another part this colony (E slope), much Asm grazed short & some berrouers in it. One site, tough Dace Asm left as island where C.L. scratched berrouer. In general, it appeared few berrouers in Asm even the short (for food? !). There was also a few berrouers in area where Carey (ston or penn.) made up half vegetation (50% lawn),