Range Management and Livestock Grazing (www.rms.nau.edu/publications/madrean/ for full bibliography) Abbott, L. B., and B. A. Roundy. 1994. The relationship between soil moisture availability patterns and seed fate of warm-season grasses. In: DeBano, L. F., A. N. Garibay, and A. Ortega-Rubio, compiler. 1995. Conference on biodiversity and management of the Madrean archipelago. Abstracts: 43-44. Abdullahi, A. N. 1980. Forage preference of cattle and land in a desert grassland in southern Arizona. PhD Dissertation, University of Arizona, Tucson, Arizona. Abouhaidar, F. 1992. Influence of livestock grazing on saguaro seedling establishment. In: Proceedings of the Symposium on Research in Saguaro National Monument. U.S. Department of the Interior, National Park Service, Tucson, Arizona, pp. 57-61. Abu-Zanat, M. M. W. 1989. Ingestive behavior of cattle grazing in lightly- and heavily-grazed patches of Lehmann lovegrass (Eragrostis lehmanniana Nees.). PhD Dissertation, University of Arizona, Tucson, Arizona. Alexander, B., F. Ronco, Jr., E. L. Fitzhugh, and J. A. Ludwig. 1989. Roots of the Arizona livestock industry. Rangelands 11: 9-13. Allen, L. S. 1989a. Livestock and the Coronado National Forest. Rangelands 11: 14-20. Allen, L. S. 1989b. Roots of the Arizona livestock industry. Rangelands 11: 9-13. Allen, L. S. 1992. Livestock-wildlife coordination in the encinal oak woodlands: Coronado National Forest. In: Ffolliott, P. F., G. J. Gottfried, D. A. Bennett, V. M. Hernandez C., A. Ortega-Rubio, and R. H. Hamre, technical coordinators. Ecology and managment of oak and associated woodlands: Perspective in the southwestern United States and northern Mexico. USDA Forest Service General Technical Report RM-218, pp. 109-110. Ames, C. R. 1977. Wildlife conflicts in riparian management: Grazing. In: Johnson, R.R. and D. R. Jones, technical coordinators. Importance, preservation, and management of riparian habitats. USDA Forest Service General Technical Report RM-43, pp. 49-51. Anable, M. E., M. P. McClaran, and G. B. Ruyle. 1992. Spread of introduced Lehmann lovegrass (Eragrostis lehmanniana Nees.) in southern Arizona, USA. Biological Conservervation 61: 181-188. Anderson, D. M. 1988. Seasonal stocking of Tobosa managed under continuous and rotation grazing. Journal of Range Management 41: 78-83. Anderson, E. W., D. L. Franzen, and J. E. Melland. 1990. Regrazing to benefit watershed-wildlife-livestock. Rangelands 12: 105-111. Araujo-Filho, J. A. de. 1976. Characterization of range sites in the Empire Valley, Arizona. PhD Dissertation, University of Arizona, Tucson, Arizona. Archer, S. A. 1994. Woody plant encroachment into southwestern grasslands and savannas: Rates, patterns and proximate causes. In: Vavra, M., Laycock, W., and R. Pieper, editors. Ecological implications of livestock herbivory in the West. Society of Range Management, Denver, Colorado, pp. 13-68. Archer, S. A., and F. E. Smeins. 1991. Ecosystem-level processes. In: Heitschmidt, R. K. and J. W. Stuth, editors. Grazing management: An ecological perspective. Timber Press, Portland, Oregon, pp. 109-139. Arizona Interagency Range Technical Sub-Committee. 1973. Guide to improvement of Arizona rangeland. Cooperative Extension Service, University of Arizona, Bulletin A-58, Tucson, Arizona. Arnold, J. F. 1942. Forage consumption and preferences of experimentally fed Arizona and antelope jackrabbits. Agricultural Experiment Station, University of Arizona, Technical Bulletin 98, Tucson, Arizona. Arthun, D., J. L. Holechek, J. D. Wallace, M. L. Gaylean, and M. Cardenas. 1992. Forb and shrub effects on ruminal fermentation in cattle. Journal of Range Management 45: 519-522. Arthun, D., J. L. Holechek, J. D. Wallace, M. L. Galyean, M. C rdenas, and S. Rafique. 1992. Forb and shrub influences on steer nitrogen retention. Journal of Range Management 45: 133-136. Bahre, C. J. 1977. Land-use history of the Research Ranch, Elgin, Arizona. Journal of the Arizona Academy of Science 12 (Suppl. 2): 1-32. Barr, G. V. 1955. A comparison of the survival over a twenty-year period of several native Arizona grasses. MS Thesis, University of Arizona, Tucson, Arizona. Bashan Y., G. Holgu¡n, and M. E. Puente. 1992. Alternativa agr¡cola regional por fertilizantes bacterianos. In: Ortega A., editor. Uso y manejo de los recursos naturales en la sierra de la Laguna Baja California Sur. Centro de Investigaciones Biol¢gicas de Baja California Sur, Publicacion 5. pp. 47-67. Baxter, C. 1977. A comparison between grazed and ungrazed juniper woodland. In: Aldon, E. F., and T. J. Loring, technical coordinators. Ecology, uses and management of pinyon-juniper woodlands. USDA Forest Service, General Technical Report RM-39, pp. 25-27. Belsky, J. A. 1991. Effects of grazing, competition, disturbance and fire on species composition and diversity in grassland communities. Journal of Vegetation Science 3: 187-200. Blake, S. B. 1980. Prediction of forage yield from simulated soil moisture deficits. PhD Dissertation, University of Arizona, Tucson, Arizona. Bock, C. E., and J. H. Bock. 1984. Effects of long term livestock exclusion in a semiarid grassland. In: Rowlands, P. G., VanRiper, C. III, and M. K. Sogge, editors. Proceedings of First Conference on Research in Colorado Plateau National Parks. USDI National Park Service, Center for Colorado Plateau Studies, Northern Arizona University, Flagstaff, Arizona, pp. 123-133. Bock, C. E., and J. H. Bock. 1992. Effects of 22 years of livestock exclusion in an Arizona grassland. In: Proceedings of the Grazing Symposium. U.S. Department of the Interior, National Park Service. Bock, C. E., and J. H. Bock. 1993. Cover of perennial grasses in southeastern Arizona in relation to livestock grazing. Conservation Biology. The Journal of the Society for Conservation Biology 7: 371-377. Bock, C. E. and B. Webb. 1984. Birds as grazing indicator species in southeastern Arizona. Journal of Wildlife Management 48: 1045-1049. Bock, C. E., J. H. Bock, W. R. Kenney, and V. M. Hawthorn. 1984. Responses of birds, rodents, and vegetation to livestock exclosure in a semidesert grassland site. Journal of Range Management 37: 239-242. Bock, J. H. 1984. Revegetation of southeastern Arizona grasslands using native grasses. Final Report to The Charles Lindbergh Fund, Inc. Bock, J. H. 1986. Velvet mesquite seedling development in three Southwestern soils. Journal of Range Management 39: 331-333. Bock, J. H., and C. E. Bock. 1986. The Appleton-Whittell Research Ranch Sanctuary of the National Audubon Society. Desert Plants 8: 48. Bohning, J. W. 1958a. Salting for better live stock distribution. Arizona Cattlelog 13(5): 60-61. Bohning, J. W. 1958b. Who can at water? The American Hereford Journal 49(5): 656-657. Bohning, J. W. and M. S. Clark. 1956. One rancher's experience in the grassland range of southern Arizona. Journal of Range Management 9: 258-260. Bonham, C. D. 1972. Ecological inventory and data storage- retrieval system for the Research Ranch. Range Science department, Science Series No. 14, Colorado State University, Fort Collins, Colorado. Brady, W. W., M. R. Stromberg, E. F. Aldon, C. D. Bonham, and S. H. Henry. 1989. Response of a semidesert grassland to 16 years of rest from grazing. Journal of Range Management 42: 284-288. Brahim, K., and S. E. Smith. 1993. Annual medic establishment and the potential for stand persistence in southern Arizona. Journal of Range Management 46: 21-25. Branan, W. V. 1994. From the other side of the fence. Range Magazine (Spring): 34-37. Brown, J. R., and S. Archer. 1989. Woody plant invasion of grasslands: Establishment of honey mesquite (Prosopis glandulosa var. glandulosa) on sites differing in herbaceous biomass and grazing history. Oecologia 80: 19-26. Brown, R. L. 1982. Effects of livestock grazing on mearn's quail in southeastern arizona. Journal of Range Management 35: 727-732. Bryant, D. A. 1971. Fertilization and burning effects on use of desert grassland by cattle. PhD Dissertation, University of Arizona, Tucson, Arizona. Bryant, N. A., Johnson, L. F., Brazel, A. J., Balling, R.C., Hutchinson, C.F. and L.R. Beck. 1990. Measuring the effect of overgrazing in the Sonoran Desert. Climatic Change 17: 243-264. Buffington, L. C., and C. H. Herbel. 1965. Vegetation changes on semidesert grassland range from 1858 to 1963. Ecological Monograph 35: 139-164. Bureau of Land Management. 1985. Proposed grazing management program for the eastern Arizona EIS area: Apach, Cochise, Coconino, Gila, Graham, Maricopa, Navaio, Pima, Pinal, Santa Cruz, Yavapai Counties. Arizona: Draft Environmental Impact Statement. U.S. Department of the Interior, Bureau of Land Management, Phoenix, Arizona. Cable, D. R. and J. W. Bohning. 1959. Changes in grazing use and herbage moisture content of three exotic lovegrasses and some native grasses. Journal of Range Management 12: 200-203. Cable, D. R. and P. R. Shumway. 1966. Crude protein in rumen contents and in forage. Journal of Range Management 19: 124-128. Cable, D. R. and S. C. Martin. 1964. Forage production and stocking rates on southern Arizona ranges can be improved. USDA Forest Service, Research Note RM-30. Cable, D. R. and S. C. Martin. 1975. Vegetation responses to grazing, rainfall, site condition, and mesquite control on semidesert range. USDA Forest Service, Research Paper RM-149. Canfield, R. H. 1942a. The relative grazing preference of cattle for the common semidesert grasses in southern Arizona. USDA Forest Service, Southwestern Forest and Range Experiment Station, Research Note 102. Canfield, R. H. 1942c A shortcut method for estimating grazing use. USDA Forest Service, Southwestern Forest and Range Experiment Station, Research Note 99. Canfield, R. H 1943. What is conservation grazing? A question every ranchman should bevitally interested in. The Cattlemam 30: 16, 18. Canfield, R. H. 1944. Measurement of grazing use by the line interception method. Journal of Forestry 42: 192-194. Caraher, D. L. 1970. Effects of longtime livestock exclusion versus grazing, on the desert grassland of Arizona. MS Thesis, University of Arizona, Tucson, Arizona. Castillo-S nchez, C. 1992. Estrategias para la recuperaci¢n del Berrendo Sonorense, 2a. Fase: Captura, marcaje y protecci¢n. Informe Tecnico Final Per¡odo 1991, Centro Ecol¢gico de Sonora. Hermosillo, Sonora, Mexico. Chew, R. M. 1982. Changes in herbaceous and suffrutescent perennials in grazed and ungrazed desertified grassland in southeastern Arizona, 1958-1978. The American Midland Naturalist 108: 159-169. Chojnacky, D. C. 1991. Growth prediction for Arizona's mesquite - (Prospois velutine) woodlands. Forest Ecology and Management 42: 293-310. Clark, M. S. 1968. Improving semidesert ranges in southern Arizona, U.S.A. by grazing management and shrub control. Annals of Arid Zone 7: 235-242. Clary, W. P. 1975. Range management and its ecological basis in the ponderosa pine type of Arizona: The status of our knowledge. USDA Forest Service, Research Paper RM-158. Clary, W. P. and D. C. Morrison. 1973. Large alligator junipers benefit early-spring forage. Journal of Range Management 26: 70-71. Claveran Alonso, R. 1995. The National Center of Sustainable Agriculture in Mexico. In: DeBano, L. F., P. F. Ffolliott, A. Ortega-Rubio, G. J. Gottfried, R. H. Hamre, and C. B. Edminster, technical coordinators. 1995. Biodiversity and management of the Madrean archipelago: The sky islands of southwestern United States and northwestern Mexico. USDA Forest Service, General Technical Report RM-GTR-264, pp. 432-433. Cox, J. R. 1985. Above-ground biomass and nitrogen quantities in a big sacaton (Sporobolus wrightii) grassland. Journal of Range Management 38: 273-276. Cox, J. R. 1988. Seasonal burning and mowing impacts on Sporobolus wrightii grasslands. Journal of Range Management 41: 12-15. Cox, J. R., and G. L. Jordan. 1983. Density and production of seeded range grasses in southeastern Arizona (1970-1982). Journal of Range Management 36: 649-651. Cox, J. R. and R. M. Madrigal. 1988. Establishing perennial grasses on abandoned farmland in southwestern Arizona. Applied Agriculture Research 3: 36-43. Cox, J. R., and H. L. Morton. 1985. Above-ground biomass quantities and livestock production at big sacaton riparian areas in southeastern Arizona. In: Johnson, R.R., C.D. Ziebell, D. R. Patton, P. F. Ffolliott, and R. H. Hamre, technical coordinators. Riparian ecosystems and their management: Reconciling conflicting uses. USDA Forest Service, General Technical Report RM-120, pp. 305-309. Cox, J. R. and H. L. Morton. 1986. Big sacaton (Sporobolus wrightii) riparian grassland management: Annual winter burning, annual winter mowing, and spring-summer grazing. Applied Agriculture Research 1: 105-111. Cox, J. R., A. K. Dobrenz, and B. McGuire. 1990. Evaluation of some alkali sacaton ecotypes collected in Mexico. Applied Agriculture Research 5: 164-168. Cox, J. R., R. L. Gillen, and G. B. Ruyle. 1989. Big sacaton riparian grassland management: Seasonal grazing effects on plant and animal production. Applied Agriculture Research 4: 127-134. Cox, J. R., M. Giner-Mendoza, A. K. Dobrenz, and M. F. Smith. 1992. Defoliation effects on resource allocation in Arizona cottontop (Digitaria californica) and Lehmann lovegrass (Eragrostis lehmanniana). Journal of the Grassland Society of South Africa 9: 53-59. Cox, J.R., F. A. Ibarra-F, and M. H. Martin-R. 1990. Fire effects on grasses in semiarid deserts. In: Krammes, J. S., technical coordinator. Effects of fire Management of southwestern natural resources. USDA Forest Service, General Technical Report RM-191, pp. 43-49. Cox, J. R., T. N. Johnsen Jr., and H. L. Morton. 1987. George Elmo Glendening--an unknown star in southwestern range research. Rangelands 9: 158-160. Cox, J. R., R. D. Madrigal, and G. W. Frasier. 1987. Survival of perennial grass transplants in the Sonoran Desert of the southwestern USA. Arid Soil (Research) and Rehabilitation 1: 77-87. Cox, J. R., M. H. Martin-R, F. A. Ibarra-F, and H. L. Morton. 1986. Establishment of range grasses on various seedbeds at creosotebush [Larrea tridentata] sites in Arizona, U.S.A. and Chihuahua, Mexico. Journal of Range Management 39: 540-546. Cox J. R., M. H. Martin-R, F. A. Ibarra-F, J. H. Fourie, N. F. G. Rethman, and D. G. Wilcox. 1988. The influence of climate and soils on the distribution of four African grasses. Journal of Range Management 41: 127-139. Cox, J. R., M. H. Martin-R, F. A. Ibarra-F, J. H. Fourle, N. F. C. Rethan, and D. C. Wilcox. 1987. Effects of climate and soils on the distribution of four African grasses. Proceedings of the Symposium on Seed and Seedbed Ecology of Rangeland Plants, April 1987, Tucson, Arizona, pp. 225-245. Cox, J. R., H. L. Morton, J. T. LaBaume, and K. G. Renard. 1983. Reviving Arizona's rangelands. Journal of Soil and Water Conservation 38: 342-345. Cox, J. R., H. L. Morton, T. N. Johnsen, Jr., G. L. Jordan, S. C. Martin, and L. C. Fierro. 1984. Vegetation restoration in the Chihuahuan and Sonoran Deserts of North America. Rangelands 6: 112-116. Cox, J. R., K. G. Renard and G. W. Frasier. 1986. Biomass distri- bution at grassland and shrubland sites. Rangelands 8: 67-68. Cox, J. R., G. B. Ruyle, J. H. Fourle, and C. Donaldson. 1988. Lehmann Lovegrass - Central South Africa and Arizona, USA. Rangelands 10: 53-55. Cox, J. R., G. B. Ruyle, and B. A. Roundy. 1990. Lehmann lovegrass in southeastern Arizona: Biomass production and disappearance. Journal of Range Management 43: 367-372. Cox, J. R., J. L. Stroehlein, and J. H. Fourie. 1989. Climatic and edaphic conditions at Eragroatis lehmanniana Nees sites in Arizona, USA and the Cape Province, RSA and potential sites in southern Arizona. Journal of the Grasslands Society of South Africa 6: 139-145. Culley, M. 1937. How to get sustained forage production in grazing semidesert mixed grass ranges. Western Livestock Journal 15: 56. Culley, M. J. 1937. Grazing habits of range cattle. USDA forest Service, Southwestn Forest and Range Experiment Station, Research Note 21. Culley, M. 1938a. Grazing habits of range cattle. The Cattleman 24: 19-23. Culley, M. 1938b. Grazing habits of range cattle. American Cattle Producer 20: 3, 4, 16, 17. Culley, M. 1939. Rodents or cattle? Western Livestock Journal 17: 30-31. Culley, M. 1942. Thirty years ago and now in Arizona cattledom. Western Livestock Journal 28: 43. Culley, M. 1943. Proper stocking pays dividends. Western Livestock Journal 28(1): 7. Culley, M. 1946a. Factors affecting range calf crop. Arizona Stockman 12(10): 30-37. Culley, M. 1946b. Good range cattle. Arizona Cattlelog 1(10): 36; and 1(11): 12-14. Culley, M. 1946c. Quality cattle for profit. American Hereford Journal 37(11): 89, 168-169. Culley, M. 1947. It pays to be loss conscious. The Cattleman 34(7): 25-26, 52, 55. Culley, M. 1948. Modern business methods in handling range cattle. Arizona Stockman 14(4): 13, 26-27. Cumming, K. J. 1951. The effects of slope and exposure on range vegetation in desert grassland and oak woodland areas of Santa Cruz County, Arizona. MS Thesis, University of Arizona, Tucson, Arizona. Dahl, B. E., R. E. Soebee, J. P. Geon, and C. S. Brumley. 1978. Will mesquite control with 2,4,5-t enhance grass production? Journal of Range Management 31: 129-131. Darrow, R. A. 1944. Arizona range resources and their utilization. I. Cochise County. University of Arizona, Aaricultural Experiment Station, Technical Bulletin 103: 311-366. Day, A. D., R. K. Thompson, and R. S. Swingle. 1986. Effects of dried sewage sludge on forage production from barley genotypes in the Sonoran Desert. Desert Plants 8: 17-19. de Alba-Avila, A. and J. R. Cox. 1988. Planting depth and soil texture effects on emergence and production of three alkali sacaton accessions. Journal of Range Managament 41: 216-220. Dwyer, D. D., and J. G. Schickendanz. 1971. Vegetation and cattle response to nitrogen-fertilized rangeland in south-central New Mexico. Agricultural Experiment Station, New Mexico State University, Research Report 215, Las Cruces, New Mexico. ElTom, O. A. M., and O. A. Mohamed-ElTom. 1984. Nutrient uptake by grasses grown on some range soils in Arizona. PhD Dissertation, University of Arizona, Tucson, Arizona. Emmerich, W. E., and S. P. Hardegree. 1990. Polyethyiene glycol solution contact effects on seed germination. Agronomy Journal 82: 1103-1107. Emmerich, W. E., J. D. Helmer, K. G. Renard, and L.J. Lane. 1984. Fate and effectiveness of tebuthiuron applied to a rangeland watershed. Journal of Environmental Quality 13: 382-386. Felker, P., J. M. Meyer, and S. J. Gronski. 1990. Application of self-thinning in mesquite (Prospois glandulose vs. glandulosa) to range management and lumber production. Forest Ecology and Management 31: 225-232. Ffolliott, P. F., A. Ortega-Rubio, G. J. Gottfried, R. H. Hamre, and C. B. Edminster, technical coordinators. 1995. Biodiversity and management of the Madrean archipelago: The sky islands of southwestern United States and northwestern Mexico. USDA Forest Service, General Technical Report RM-GTR-264. Frasier, G. W. 1975. Water harvesting: A source of livestock water. Journal of Range Management 28: 429-435. Frasier, G. W. 1984. Water sequences and arid rangeland revegetation. Second International Rangeland Congress, Adelaide, Australia, 1 p. Frasier, G. W. 1985. A precision planter for seedling emergence evaluation. Journal of Range Management 38: 187-190. Frasier, G. W. 1986. Water requirements for range plant establishment. Reprints - U.S. Department of Agriculture, Agricultural Research Service [181] USDA, ARS, Aridland Watershed Management Research Unit, Tucson, Arizona. Frasier, G. W. l987. Soil moisture availability effects on seed germination and germinated seed survival of selected warm season grasses. Proceedings of the Symposium on Seed and Seedbed Ecology of Rangeland Plants, April 1987, Tucson, Arizona, pp. 192-198. Frasier, G. W. 1989. Characterization of seed germination and seedling survival during the initial wet-dry periods following planting. Journal of Range Management 42: 299-303. Frasier, G. W. and T. N. Johnsen, T. N., Jr. 1991. Saltcedar (Tamarisk): Classification, distribution, ecology, and control: Chapter 37. In: James, L. F., J. O. Evans, M. H. Ralphs and R. D. Child, editors. Noxious range weeds. Westview Press, Boulder, Colorado, pp. 377-386. Frasier, G. W. and F. Lopez. 1990. Optimizing wet-dry precipitation probabilities for improving plant establishment. Proceedings of the ASCE Conferecne on Watershed Planning and Analysis in Action, Committee on Watershed Management and Irrigation and Drainage Division, Durango, Colorado, pp. 395-404. Frasier, G. W. and J. R. Simanton. 1987. Early root length distribution of warm season perennial grasses as influenced by soil moisture: A modeling concept. Proceedings of the Symposium on Seed and Seedbed Ecology of Rangeland Plants, April 1987, Tucson, Arizona, pp. 104-109. Frasier, G. W., K. R. Cooley, and J. R. Griggs. 1979. Performance evaluation of water-harvesting catchments. Journal of Range Management 32: 453-456. Frasier, G. W., J. R. Cox, and D. A. Woolhiser. 1985. Emergence and seedling response of seven warm-season grasses for six wet-dry sequences. Journal of Range Management 38: 372-377. Frasier, G. W., J. R. Cox, and D. A. Woolhiser. 1987. Wet-dry cycle effects on warm-season grass seedling establishment. Journal of Range Management 40: 2-6. Frasier, G. W., D. A. Woolhiser and J. R. Cox. 1984. Emergence and seedling survival of two warm-season grasses as influenced by the timing of precipitation: A greenhouse study. Journal of Range Management 37: 7-11. Frasier, G. W., J. R. Cox, and D. A. Woolhiser. 1985. Emergence and seedling responce of seven warm-season grasses for six wetdry sequences. Journal of Range Manageent 38: 372-377. Freeman, B. N. 1955. The effects of nitrate and phosphates upon forage production of a southern Arizona desert grassland range. MS Thesis, University of Arizona, Tucson, Arizona. Frost, W. E., and L. E. Smith. 1991. Biomass productivity and range condition on range sites in southern Arizona. Journal of Range Management 44: 64-67. Fusco, M. L. 1993. Influence of range condition and watering points on forage production and composition in south central New Mexico. MS Thesis, New Mexico State University, Las Cruces, New Mexico. Fusco, M., J. Holechek, A. Tembo, A. Daniel, and M. Cardenas. 1995. Grazing influences on watering point vegetation in the Chihuahuan Desert. Journal of Range Management 48: 32-38. Galt, H. D. 1966. The botanical composition of steer diet on a semidesert range. MS Thesis, University of Arizona, Tucson, Arizona. Galt, H. D. 1972. Relationship of the botanical composition of steer diet to digestibility an forage intake on a desert grassland. PhD Dissertation, University of Arizona, Tucson, Arizona. Galt, H. D., B. Theurer, and S. C. Martin. 1982. Botanical composition of steer diets on mesquite and mesquite-free desert grassland. Journal of Range Management 35: 320-325. Hennensy, J. T., B. Kies, R. P. Gibbens, and J. M. Tromble. 1986. Soil sorting by forty-five years of wind erosion on a southern New Mexico range. Soil Science Society of America Journal 50: 391-394. Gait, H. D., B. Theurer, J. H. Ehrenreich, W.H. Hale and S. C. Martin. 1966. Botanical composition of the diet of steers grazing a desert grassland range. Proceedings of the Western Section of the American Society of Animal Science 17: 397-401. Galt, H. D., B. Theurer, J. H. Ehrenreich, W. H. Hale, and S. C. Martin. 1969. Botanical composition of diet of steers grazing a desert grassland range. Journal of Range Management 22: 14-19. Gamougoun, N. D. 1987. Cattle grazing behavior and range plant dynamics in southern Arizona. PhD Dissertation, University of Arizona, Tucson, Arizona. Garcia, M. T., R. Maldonado Vega, D. R. Betters, and others. 1995. Ecosystem management for northern Mexico - landowner perspectives at El Largo-Madera In: Aguirre-Bravo, C., L. Eskew, and A. B. Villa-Salas, technical editors. Partnerships for Sustainable Forest Ecosystem Management: Fifth Mexico/U.S. Biennial Symposium. USDA Forest Service, General Technical report RM-GTR-266, pp. 197-201. Gibbens, R. P., C. H. Herbel, H. L. Morton, W. C. Lindemann, J. A. Ryder-White, D. B. Richman, E. W. Huddleston, W. H. Conley, C. A. Davis, and J. A. Reitzel. 1986. Some impacts of 2,4,5-T on a mesquite duneland ecosystem in southern New Mexico: A synthesis. Journal of Range Management 39: 320-325. Gillis, A. M. 1991. Should cows chew cheatgrass on commonlands. Biological Sciences 41: 668-675. Gonzalez, Vicente C. E. 1987. La importancia de las plantas silvestres para la produccion de alimentos en Mexico. In: Aldon, E. F., C. E. Gonzales V., and W. H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp. 5-8. Goodloe, S. 1993. The pi¤on-juniper invasion: An inevitable disaster. In: Aldon, E.F., and D.W. Shaw, technical coordinators. Managing pi¤on-juniper ecosystems for sustainability and social needs. USDA Forest Service, General Technical Report RM-236, pp. 153-154. Gray, J. R., C. Jr. Steiger, and J. M. Fowler. 1982. Characteristics of grazing systems. Agricultural Experiment Station, New Mexico State University, Research Report 467, Las Cruces, New Mexico. Green, C. 1987. A strategy for reversing desertification. In: Aldon, E. F., C. E. Gonzales V., and W. H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp. 131-137. Griffiths, D. A. 1901. Range improvement in Arizona. Washington, D.C.: USDA Bureau of Plant Industry, Bulletin 4. Gutierrez, J. R., and W. G. Whitford. 1987. Chihuahuan Desert annuals: Importance of water and nitrogen. Ecology 68: 2032- 2045. Gutierrez, J. R., Silva O. A. Da, M. I. Pagani, D. Weems, and W. G. Whitford. 1988. Effects of different patterns of supplemental water and nitrogen fertilization on productivity and composition of Chihuahuan Desert annual plants. The American Midland Naturalist 119: 336-343. Haase, E. F. and H. A. Schreiber. 1972. Topographic relations of vegetation and soil in a southeastern Arizona grassland. The Southwestern Naturalist 16: 387-401. Hadley, D. 1994. Cattle and drought in southeastern arizona: The impacts of grazing during the drought of the late nineteenth century. In: DeBano, L. F., A. N. Garibay, and A. Ortega-Rubio, compiler. 1995. Conference on biodiversity and management of the Madrean archipelago. Abstracts: 39-40. Hakkila, M. D., J. L. Holechek, J. D. Wallace, D. M. Anderson, and M. Cardenas. 1987. Diet and forage intake of cattle on desert grassland range. Journal of Range Management 40: 334-342. Hardegree, S.P. and W. E. Emmerich. 1991. Variability in germination rate among seed lots of Lehmann Lovegrass. Journal of Range Management 44: 323-326. Hardegree, S.P. and W. E. Emmerich. 1992. Effect of metric-priming duration and priming water potential on germination of four grasses. Journal of Expenmental Botany 43: 233-238. Hardegree, S. P. and W. E. Emmerich. 1992. Seed germination response of four Southwestern range grasses to equilibration a subgermination matricpotentials. Agronomy Journal 84: 994-998. Hardegree, S.P. and W. E. Emmerich. 1993. Germination response of hand-threshed Lehmann lovegrass seeds. Journal of Range Management 46: 203-207. Haskell, H. S. 1945. Effects of conservative grazing on a desert grassland range as shown by vegetation analysis. MS Thesis, University of Arizona, Tucson, Arizona. Haskell, H. S. 1945. Succesional trends on a conservatively grazed desert grassland range. Journal of the American Society of Agronomists 37: 978-990. Haworth, K., and G. R. McPherson. 1994. Effects of Quercus emoryi on herbaceous vegetation in a semi arid savanna. Vegetatio 112: 153-159. Hayer, W. T. 1963. Seasonal influence on the grazing ruminants diet and rumen funstion. MS Thesis, University of Arizona, Tucson, Arizona. Head, M. A., PMWSA, G. S. Smith, P. A. Trujillo, C. H. Herbel, and D. Sanson. 1982. Copper, manganese and zinc status of beef cows grazing dormant forage on arid range, as affected by supplemental feeds. Proceedings of the Annual Meeting of the American Society of Animal Science, Western Section 33. Hennessy, J. T., R. P. Gibbens, J. M. Tromble, and M. Cardenas. 1983. Vegetation changes from 1935 to 1980 in mesquite dunelands and former grasslands of southern New Mexico. Journal of Range Management 36: 370-374. Henson, L. 1993. The Forest Service's pi¤on-juniper initiative for the southwest. In: Aldon, E.F., and D.W. Shaw, technical coordinators. Managing pi¤on-juniper ecosystems for sustainability and social needs. USDA Forest Service, General Technical Report RM-236, pp. 23-25. Herbel, C. H., H. L. Morton, and R. P. Gibbens. 1985. Controlling shrubs in the arid southwest with tebuthiuron. Journal of Range Management 38: 391-394. Herbel, C. H., J. D. Wallace, M. D. Finkner, and C. C. Yarbrough. 1984. Early weaning and part-year confinement of cattle on arid rangelands of the Southwest. Journal of Range Management 37: 127-130. Hernandez, S., J. Andrade, R. Claveran, F. Gutierrez, L. M. Macias, S. Martin del Campo, R. Ochoa, M. Tiscareno, and A. Torres. 1987. Mexico sistema integral de produccion agropecuaria en Temporal en el Llano de Aguascalientes, Mexico. In: Aldon, E.F., C.E. Gonzales V., and W.H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp. 160-163. Holechek, J. L., and R. D. Pieper. 1992. Estimation of stocking rate on New Mexico rangeland. Journal of Soil and Water Conservation 47: 116-119. Holechek, J. L., R. E. Estell, M. L. Galyean, and W. Richards. 1989. Chemical composition, in vitro digestibility and in vitro VFA concentrations of New Mexico native forages. Journal of the British Grassland Society 44. Hughes, L. E. 1981. High altitude photography and range trend. Rangelands 3: 197-198. Hughes, L. E. 1985. Yes, there is grass after overgrazing. Rangelands 7: 3-4. Hughes, L. E.. 1991. A drought and 2 grazing systems. Rangelands 13: 229-232. Hulet, C. V., D. M. Anderson, V. B. Nakamatsu, L. W. Murray, and R. D. Pieper. 1992. Diet selection of cattle and bonded small ruminants grazing arid rangeland. Sheep Research Journal 8. Humphrey, R. R. 1937. Ecology of burroweed. Ecology 18: 1-9. Humphrey, R. R. 1949. Fire as a means of controlling velvet mesquite, burroweed, and cholla on southern Arizona ranges. Journal of Range Management 2: 173-182. Humphrey, R. R. 1959. Lehmann's lovegrass, pros and cons. In: Humphrey, R. R., compiler. Your range - its management. Agricultural Experiment Station, University of Arizona, Special Report 2, Tucson, Arizona. Humphrey, R. R. 1960. Arizona range grasses: Their description, forage value and management. University of Arizona Press, Tucson, Arizona. Humphrey, R. R. 1962. Fire as a factor. In: Humphrey, R. R., editor. Range ecology. The Ronald Press, New York, pp. 148-149. Humphrey, R. R. 1963.-The role of fire in the desert and desert grassland areas of Arizona. Proceedings of the Tall Timbers Fire Ecology Conference 2: 45-62. Humphrey, R. R. 1987. 90 years and 535 miles: Vegetation chanaes along the Mexican border. University of New Mexico Press, Albuquerque, New Mexico. Humphrey, R. R., and L. A. Mehrhoff. 1958. Vegetation change on a southern Arizona grassland range. Ecology 39: 720-726. Humphrey, R. R., and L. B. Hamilton. 1960. Forage production on Arizona ranges: Pima, Pinal and Santa Cruz counties. Agricultural Experiment Station, University of Arizona, Bulletin 302, Tucson, Arizona. Ibarra-F., F. A., J. R. Cox, M. H. Martin-R., T. A. Crowl, and C. A. Call. 1995. Predicting buffelgrass survival across a geographical and environmental gradient. Journal of Range Management 48: 53-59. Ibarra, F. A. , M. H. Martin, L. R. Torres, M. F. Silva, H. L. Morton and J. R. Cox. 1986. The brittlebush problem and potential control measures in buffelgrass pastures in Sonora, Mexico. Proceedings of the Western Society of Weed Science, San Diego, California 39: 57-66. Jepson-Innes, K. and C. E. Bock. 1989. Response of grasshoppers (Orthoptera: Acrididae) to livestock grazing in southeastern Arizona: Differences between seasons and subfamilies. Oecolocia 78: 430-431. Johnsen, T. N., Jr. 1988. Conditions influencing turbinella oak (Quercus turbinella) mortality from picloram or picloram and 2,4-D. Weed Science 36: 810-817. Johnson, T.N., Jr. 1991. Tebuthiuron effects on elemental nutrients in blue grama (Bouteloua gracillis) forage. Weed Technology 5: 194-197. Johnsen, T. N., Jr. 1992. Observations: Potential long term environmental impact of tebuthiuron and its metabolites in Utah Juniper trees. Journal of Range Management 45: 167-170. Johnsen, T. N., Jr. and H. L. Morton. 1991. Long-term tebuthiuron content of grasses and shrubs on semiarid rangelands. Journal of Range Management 44: 294-253. Johnson, D. 1995. Ecological impacts of cattle grazing on the vegetation, soils, and wildlife of the mountains of Sonora. In: DeBano, L. F., P. F. Ffolliott, A. Ortega-Rubio, G. J. Gottfried, R. H. Hamre, and C. B. Edminster, technical coordinators. 1995. Biodiversity and management of the Madrean archipelago: The sky islands of southwestern United States and northwestern Mexico. USDA Forest Service, General Technical Report RM-GTR-264, pp. 434-437. Jordon, G. L., and M. R. Haferkamp. 1989. Temperature responses and calculated heat units for germination of several range grasses and shrubs. Journal of Range Management 42: 41-45. Kenney, W. R., J. H. Bock, and C. E. Bock. 1986. Responses of the shrub, Baccharis pteronioides, to livestock exclosure in southeastern Arizona. The American Midland Naturalist 116: 429- 431. Kincaid, D. R. and Williams, G. 1966. Rainfall effects on soil surface characteristics following range improvement treatments. Journal of Range Management 19: 346-351. Knipe, O. D. 1982. Angora goats for conversion of Arizona chaparral: Early results. USDA Forest Service, General Technical Report PSW-58. Knipe, O. D. 1983. Effects of angora goat browsing on burned-over Arizona chaparral. Rangelands 5: 252-255. Laferriere, J. E. 1991. Range extensions in the Sierra Madre Occidental, Chihuahua, Mexico. Phytologia 70: 188-193. Little, E. L., Jr. 1987. Manejo de Pinos Pinoneros para Pinones. In: Aldon, E. F., C. E. Gonzales V., and W. H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp. 45-48. Little, E. L., Jr. 1993a. Managing southwestern pi¤on-juniper woodlands: The past half century and the future. In: Aldon, E.F., and D.W. Shaw, technical coordinators. Managing pi¤on-juniper ecosystems for sustainability and social needs. USDA Forest Service, General Technical Report RM-236, pp. 105-107. Livingston, M., B. A. Roundy, and S. E. Smith. 1995. Association of native grasses and overstroy species in southern Arizona. In: Roundy, B. A., E. D. McArthur, J. S. Haley, and D. K. Mann, compilers. Wildland shrub and arid land resortation symposium. USDA Forest Service, General Technical Report INT-315, pp. 202-208 Ludwig, J. A., and W. H. Moir. 1987. A baseline of soil erosion and vegetation monitoring in desert grasslands: Chihuahua, Texas, and New Mexico. In: Aldon, E. F., C. E. Gonzales V., and W. H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp. 214-220. Ludwig, J. A., W. G. Whitford, and J. M. Cornelius. 1989. Effects of water, nitrogen and sulfur amendments on cover, density and size of Chihuahuan Desert ephemerals. Journal of Arid Environments 16: 35-42. Lund, H. G., M. Caballero, R. H. Hamre, R. S. Driscoll, and W. Bonner, Coordinators. 1981. Arid land resource inventories: Developing cost-efficient methods. USDA Forest Service, General Technical Report WO-28. Martin-R., M. H., J. R. Cox, and F. Ibarra-F. 1995. Climatic effects on buffelgrass productivily in the Sonoran Desert. Journal of Range Management 48: 60-63. Martin, S. C. 1972. Some effects of continuous grazing on forage production. Arizona Cattlelog 28(10): 17,18, 23-25. Martin, S. C. 1973a. A grazing system for semidesert ranges based on responses of grasses to seasonal rest. In: Twenty-Sixth Annual Meeting of the Society for Range Management. Abstracts: 21. Martin, S. C. 1973b. Responses of semidesert grasses to seasonal rest. Journal of Range Management 26: 165-170. Martin, S. C. 1975a. Ecology and management of southwestern semidesert grass-shrub ranges: The status of our knowledge. USDA Forest Service, Research Paper RM-156. Martin, S. C. 1975b. Why graze semidesert ranges? Journal of Soil and Water Conservation 30: 186-188. Martin, S. C. 1978a. Grazing systems-what can they accomplish? Rangeman's Journal 5(1): 14-16. Martin, S. C. 1978b. The Santa Rita grazing system. In: Nyder, D.N., editor. Proceedings of the First International Rangeland Congress. Society for Range Management, Denver, Colorado, pp. 573-575. Martin, S. C. 1987. Converting forage to food with cattle on the Santa Rita Experimental Range. In: Aldon, E. F., C. E. Gonzales V., W. H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp, 179-181. Martin, S. C., and D. R. Cable. 1974. Managing semidesert grass-shrub ranges. USDA Forest Service, Technical Bulletin 1480. Martin, S. C., and D. R. Cable. 1975. Highlights of research on the Santa Rite Experimental Range. In: Arid shrublands. Proceedings of the Third Workshop of the United States/Australia Rangelands Panel, Tucson, Arizona, March 26-April 5, 1973, pp. 51-57. Martin, S. C., and H. L. Morton. 1980. Responses of falsemesquite (Calliandra eriophylla), native grasses and forbs, and lehmann lovegrass (Eragrostis) after spraying with picloram. Journal of Range Management 33: 104-106. Martin, S. C. and H. L. Morton. 1993. Mesquite control increases grass density and reduces soil loss in southern Arizona. Journal of Range Management 46: 170-175. Martin, S. C., and D. R. Patton. 1980. Characteristics, resources, and uses of hot desert of the United States. In: Lund, H. G., M. Caballero, R. H. Hamre, R. S. Driscoll, and W. Bonner, technical coordinators. Arid lands resource inventories: Developing cost-efficient methods. USDA Forest Service, General Technical Report WO-28, pp. 21-27. Martin, S. C., and H. G. Reynolds. 1973. The Santa Rita Experimental Range: Your facility for research on semidesert ecosystems. Arizona Academy of Science 8: 56-67. Martin, S. C., and K. E. Severson. 1988. Vegetation response to the Santa Rita grazing system. Journal of Range Management 41: 291-295. Martin, S. C., and D. E. Ward. 1970. Rotating access to water to improve semidesert cattle range near water. Journal of Range Management 23: 22-26. Martin, S. C., K. K. Barnes, and L. L. Bashford. 1966. You can weigh a range cow before she knows it. Progressive Agriculture in Arizona. 18(6): 89. Martin, S. C., K. K. Barnes, and L. L. Bashford. 1967. A step toward automatic weighing of range cattle. Journal of Range Management 20: 91-94. Martin, S. C., J. L. Thames, and E. B. Fish. 1974. Changes in cactus numbers and herbage production after chaining and mesquite control. Progressive Agriculture in Arizona 26(6): 3-6. Medina, A. L. 1966. The Santa Rita Experiment Range: History and annotated bibliography (1903-1988). USDA Forest Service, General Technical Report RM-GTR-RM-276. Morton, H. L., and J. R. Cox. 1986. Brush control and forage production in southeastern Arizona rangelands. Proceedings of the Western Society of Weed Science 39: 66-72. Mazaika, R., and P. R. Krausman. 1991. Use of dry-weight rank multipliers for desert vegetation. Journal of Range Management 44: 409-410. Morton, H. L., and A. Melgoza. 1991. Vegetation changes following brush control in creosotebush communities. Journal of Range Management 44: 133-139. Morton, H. L., F. A. Ibarra-F, M. H. Martin-R, and J. R. Cox. 1990. Creosotebush control and forage production in the Chihuahuan and Sonoran Deserts. Journal of Range Management 43: 43-48. Morton, H. L., N. Thomas, J. R. Johnsen, and J. R. Simanton. 1989. Movement of tebuthiuron applied to wet and dry rangeland soils. Weed Science 37: 117-122. Murrieta, R. A. 1986. Impacto de la ganaderia en la utilizacion de especies nativas y su clasificion en el Estado de Sonora. In: Patton, D. R., C. E. Gonzales V., A. L. Medina, L. A. Segura T., and R. H. Hamre, technical coordinators. Management and utilization of arid land plants: Symposium proceedings. USDA Forest Service, General Technical Report RM-135, pp. 47-48. Neale, P. E. 1937. Benefits, based on nutritional requirements, from proper stocking of ranges. Agricultural Experiment Station, New Mexico State University, Las Cruces, New Mexico. Nelson, A. B., C. H. Herbel, and H. M. Jackson. 1970. Chemical composition of forage species grazed by cattle on an arid New Mexico range. Agricultural Experiment Station, New Mexico State University, Technical Bulletin 561, Las Cruces, New Mexico. Nelson, B. 1942. The relationship of range conditions to ranch income in southern Arizona. MS Thesis, University of Arizona, Tucson, Arizona. Nelson, E. W. 1934. The influence of precipitation and grazing upon black grama grass range. USDA Technical Bulletin 409. Ogden, P. R. 1994. Ninety years of vegetation and animal responses to management practices and weather on the Santa Rita Experimental Range. In: DeBano, L. F., A. N. Garibay, and A. Ortega-Rubio, compiler. 1995. Conference on biodiversity and management of the Madrean archipelago. Abstracts: 22. Pamo, E. T., R. D. Pieper, and R. F. Beck. 1991. Range condition analysis: Comparison of 2 methods in southern New Mexico desert grasslands. Journal of Range Management 44: 374-378. Parker, K. W. 1942. A method for estimating grazing use in mixed grass types. USDA Forest Service, Southwestern Forest and Range Experiment Station, Research Note 105. Parker, K. W. and S. C. Martin. 1952. The mesquite problem on southern Arizona ranges. USDA Circular 908. Patton, D. R., J. M. de la Puente C., P. F. Ffolliott, S. Gallina, and E. T. Bartlett, technical coordinators. 1983. Wildlife and range research needs in northern Mexico and southwestern United States: Workshop proceedings. USDA Forest Service, General Technical Report WO-36. Pieper. R. D., and C. H. Herbel. 1982. Herbage dynamics and primary productivity of a desert grassland ecosystem. Agricultural Experimental Station, New Mexico State University, Technical Bulletin 695, Las Cruces, New Mexico. Pieper, R. D., E. E. Parker, G. B. Donart, J. D. Wallace, and J. D. Wright. 1991. Cattle and vegetation response to four-pasture rotation and continuous grazing systems. Agricultural Experimental Station, New Mexico State University, Technical Bulletin 756, Las Cruces, New Mexico. Reynolds, H. G. and S. C. Martin. 1968. Managing grass-shrub cattle ranges in the Southwest. USDA Agricultural Handbook 162. Rippel, P., R. D. Pieper, and G. A. Lymbery. 1983. Vegetational evaluation of pinyon-juniper cabling in south-central New Mexico. Journal of Range Management 36: 13-15. Rinne, J. N., and T. Tharlson. 1987. Effects of domestic livestock grazing on montane streams: Aquatic macroinvertebrates. In: Sixty-sixth Annual Conference of Western Association of Fish and Wildlife Agencies, pp. 91-98. Roundy, B. A. 1995. Lessons from the past - Gilbert L. Jordan's revegetation research in the Chihuahuan and Sonoran Deserts. In: Roundy, B. A., E. D. McArthur, J. S. Haley, and D. K. Mann, compilers. Wildland shrub and arid land resortation symposium. USDA Forest Service, General Technical Report INT-315, pp. 107-112. Roundy, B. A., and G. L. Jordan. 1988. Vegetation changes in relation to livestock exclusion and rootplowing in southeastern Arizona. The Southwestern Naturalist 33: 425-436. Roundy, B. A., G. B. Ruyle, and J. Ard. 1986. Estimating production and utilization of jojoba. In: Patton, D. R., C. E. Gonzales V., A. L. Medina, L. A. Segure T., and R. H. Hamre, technical coordinators. Management and utilization of arid land plants: Symposium proceedings. USDA Forest Service, General Technical Report RM-135, pp. 17-23. Roundy, B. A., J. A. Young, L. B. Sumrall, and M. Livingston. 1992. Laboratory germination responses of 3 love-grasses to temperature in relation to seedbed temperature. Journal of Range Management 45: 306-311. Roundy, B. A., R. N. Keys, and V. K. Winkel. 1990. Soil response to cattle trampling and mechanical seedbed preparation. Arid Soil Research and Rehabilitation 4: 233-242. Rubio, H. O., M. K. Wood, M. Cardenas, and B.A. Buchanan. 1992. The effect of polyacrylamide on grass emergence in southcentral New Mexico. Journal of Range Management 45: 296-300. Ruyle, G. 1985. Managing Lehmann lovegrass for livestock. Arizona Farmer Stockman 51(5): 46. Ruyle, G. B., B. A. Roundy, and J. R. Cox. 1988. Effects of burning on germinability of Lehmann lovegrass. Journal of Range Management 41: 404-406. Ruyle, G. B., M. AbuZanat, and R. W. Rice. 1988. The influence of grazed patches on cattle foraging behavior. Proceedings American Society of Animal Science 39: 234-236. Ruyle, G. B., O. Hasson, and R. W. Rice. 1987. The influence of residual stems on the biting rates of cattle grazing Eragrostis lehmanniana Nees. Applied Animal Behavior Science 19: 11-17. Ruyle, G. B., P. R. Ogden, and R. W. Rice. 1988. Defoliation patterns of cattle grazing Lehmann lovegrass (Eragrostis lehmanniana Nees). Applied Agricultural Research 4: 177-181. Ruyle, G. B., R. L. Grumbles, M. J. Murphy, and R.C. Cline. 1986. Oak consumption by cattle in Arizona. Rangelands 8: 124-146. Schmutz, E. M. 1966. Shrub control and reseeding effects on the oak chaparral of Arizona. Journal of Range Management 19: 191-195. Schmutz, E. M. 1973. A deferred-rotation grazing system for southwestern ranges. Progressive Agriculture in Arizona 25: 12-13. Schmutz, E. M., and D. W. Whitham. 1962. Shrub control studies on the oak-chaparral of Arizona. Journal of Range Management 15: 61-67. Schmutz, E. M., D. R. Cable, and J. J. Warwick. 1959. Effects of shrub removal on the vegetation of a semiarid grass-shrub range. Journal of Range Management 12: 34-37. Schmutz, E. M., M. K. Sourabie, and D. A. Smith. 1985. The Page Ranch story: Its vegetative history and management implications. Desert Plants 7: 13-21. Schott, M. R., and R. D. Pieper. 1985. Influence of canopy characteristics of one-seed juniper on understory grasses. Journal of Range Management 38: 328-330. Schott, M. R., and R. D. Pieper. 1987. Succession of pinyon-juniper communities after mechanical disturbance in southcentral New Mexico. Journal of Range Management 40: 88-94. Schreiber, H. A., and G. W. Frasier. 1978. Increasing rangeland forage production by water harvesting. Journal of Range Management 31: 37-40. Scott, J. M, B. Csuti, and J. E. Estes. 1987. Species richness, a geographic approach to protecting future biological diversity. BioScience 37: 782-788. Shumway, R. P., F. Hubbert, Jr., W. T. Hayer, W. T., D. R. Cable, and W. H. Hale. 1963. A qualitative determination of the diet of grazing steers under desert grassland conditions. Proceedings of Western Section American Society of Animal Science 14: 16. Silbert, M. 1988. Mesquite pod production for livestock feed: An economic development alternative in central Mexico. MS Thesis, University of Arizona, Tucson, Arizona. Simanton, J. R. 1991. Revegetation of semiarid rangelands: Problems, procedures, and probabilities. Rangelands 13: 129-132. Simanton, J. R., and G. W. Frasier. 1980. Stockwater development to enhance benefits of brush to grass conversion. Rangelands 2: 146-147. Simanton, J. R., and G. L. Jordan. 1986. Early root and shoot elongation of selected warm-season perennial grasses. Journal of Range Management 39: 63-67. Simanton, J. R., and H. B. Osborn. 1973. Use of stock ponds for hydrologic research on southwest rangelands. Hydrology and Water Resources in Arizona and the Southwest 3: 2-7. Simanton, J. R., H. B. Osborn, and K. G. Renard. 1977. Effects of brush to grass conservation on the hydrology and erosion of a semiarid southwestern rangeland watershed. Hydrology and Water Resources in Arizona and the Southwest 7: 249-256. Simanton, J. R., M. A. Weltz, and H. D. Larsen. 1991. Rangeland experiments to parameterize the water erosion prediction project model: Vegetation canopy cover effects. Journal of Range Management 44: 276-281. Smith, D. A. and E. M. Schmutz. 1975. Vegetative changes on protected versus grazed desert grassland ranges in Arizona. Journal of Range Management 28: 453-457. Springfield, H. W. 1976. Characteristics and management of southwestern pinyon-juniper ranges: The status of our knowledge. U.S.D.A. Forest Service Rocky Mountain Forest and Range Experimentation Station RM-160. Streets, R. B., and E. B. Stanley. 1936. Control of mesquite and noxious shrubs on southern Arizona grassland ranges. University of Arizona, Tucson, Arizona, Agriculture Experiment Station, Technical Bulletin 74. Taylor, C.A., Jr, T. D. Brooks, and N. E. Garza. 1993. Effects of short duration and high-intensity, low-frequency grazing systems on forage production and composition. Journal of Range Management 46: 118-121. Taylor, W. P., C. T. Vorhies, and P. B. Lister. 1935. The relation of jack rabbits to grazing in southern Arizona. Journal of Forestry 33: 490-498. Tedonkeng, E., R. D. Pieper, and R. F. Beck. 1991. Range condition analysis: Comparison of 2 methods in southern New Mexico desert grasslands. Journal of Range Management 44: 374-378. Tembo, A. 1990. Influence of watering points and range condition on vegetation of the Chihuahuan Desert. PhD Dissertation, New Mexico State University, Las Cruces, New Mexico. Thornber, J. J. 1910. The grazing ranges of Arizona. Agricultural Experiment Station, University of Arizona Bulletin 65, Tucson, Arizona. Thornber, J. J. 1911. Native cacti as emergency forage plants. Agricultural Experiment Station, University of Arizona, Bulletin 67, Tucson, Arizona. Tromble, J. M. 1975. Increasing forage production on a semiarid rangeland watershed. Hydrology and Water Resources in Arizona and the Southwest 4: 33-40. Tromble, J. M., K. G. Renard, and A. P. Thatcher. 1974. Infiltration for three rangeland soil-vegetation complexes. Journal of Range Management 27: 318-321. Vallentine, J. F. 1989. Range development and improvements. Academic Press, San Diego, California. Vallentine, J. F. 1990. Grazing management. Academic Press, San Diego, California. Ward, D. E. 1975. Seasonal weight changes of cattle on semidesert grassshrub ranges. Journal of Range Management 28: 97-99. Weaver, L. C., and G. L. Jordan. 1985. Effects of selected seed treatment on germination rates of five range plants. Journal of Range Management 38: 415-417. Weltz, M. A., J. C. Ritchie, and H. D. Fox. 1994. Comparison of laser and field measurements of vegetation height and canopy. Water Resources Research 30: 1311-1319. Weltz, M. A., M. K. Wood, and E. E. Parker. 1989. Flash grazing and trampling: Effects of infiltration rates and sediment yield on a selected New Mexico range site. Journal of Arid Environment 16: 95-100. Westoby, M., B. Walker, and I. Noy-Meir. 1989. Opportunistic management for rangelands not at equilibrium. Journal of Range Management 42: 266-274. Whitford, W. G., J. F. Reynolds, and G. L. Cunningham. 1987. How desertification affects nitrogen limitation of primary production on Chihuahuan desert watersheds. In: Aldon, E. F., C. E. Gonzales V., W. H. Moir, technical coordinators. Strategies for classification and management of native vegetation for food production in arid zones. USDA Forest Service, General Technical Report RM-150, pp. 143-153. Wight, J. R., E. P. Springer, and D. L. Brakensiek. 1983. SPUR - Simulation of production and utilization of rangelands: A rangeland model for management and research. USDA Agricultural Research Service, Boise, Idaho. Wilcox, B. P., and M. K. Wood. 1989. Factors influencing interrill erosion from semiarid slopes in New Mexico. Journal of Range Management 42: 66-70. Wilcox, B. P., and M. K. Wood. 1988. Hydrologic impacts of sheep grazing on steep slopes semiarid rangelands. Journal of Range Management 41: 303-306. Wilson, P. N. 1988. Intensive grazing management in arid and semiarid regions: An economic assessment. In: Whitehead, E. E. C. F. Hutchinson, B. N. Timmermann, R. G. Varady, editors. Arid lands: Today and tomorrow. Westview Press, Boulder, Colorado, pp. 1127-1209. Winkel, V. K., and B. A. Roundy. 1991. Effects of cattle trampling and mechanical seedbed preparation on grass seedling emergence. Journal of Range Management 44: 176-180. Winkel, V. K., B. A. Roundy, and J. R. Cox. 1991. Influence of seedbed microsite characteristics on grass seedling emergence. Journal of Range Management 44: 210-213. Wooten, E. 0. 1916. Carrying capacity of grazing ranges in southern Arizona. USDA Bulletin 367, Washington, D.C, Zemo, T. 1968. Behavior and grazing preference of fistulated steers on a desert grassland. MS Thesis, University of Arizona, Tucson, Arizona. Zemo, T., and J. O. Klemmedson. 1970. Behavior of fistulated steers on a desert grassland. Journal of Range Management 23: 158-163.