In the half of an exclosure where pocket gopher populations were uncontrolled, dandelion was eliminated from the community and the aboveground peak standing crop of slender wheatgrass, mountain brome, Michaux sagewort, and Rydberg penstemon increased between 1942 and 1973. In the half of the exclosure where gophers were controlled yearly, most species of annuals were absent in 1973, Letterman needlegrass decreased, and slender wheatgrass increased. Tall forbs, mainly Oregon fleabane and sticky geranium, increased in both areas, but the greatest increase occurred where gophers were controlled. Soils within the exclosure were significantly higher in total porosity and significantly lower in bulk density in 1973 than soils in the adjacent area grazed by sheep. Organic matter, nitrogen, and phosphorus contents of the soil were significantly higher where gophers were present in the exclosure than where gophers had been controlled. This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020
Scholarly peer-reviewed articles published by the Society for Range Management. Access articles on a rolling-window basis from vol. 1, 1948 up to 5 years from the current year. Formerly Journal of Range Management (JRM). More recent content is available by subscription from SRM.