Your search for keyword(s) "gutierrezia sarothrae" resulted in 4 record(s).

Title: Desert grassland canopy arthropod species richness: Temporal patterns and effects of intense, short-duration livestock grazing: Journal: Journal of Arid Environments; Authors: G. S. Forbes, J. W. Van Zee, W. Smith, and W. G. Whitford; Date: 2005; Summary: A five year study, in the desert grassland of New Mexico, sampled arthropods living in the canopies of two woody shrub species (Gutierrezia sarothrae and Prosopis glandulosa) and perennial grasses with associated herbaceous species on 18 plots. Mesquite shrubs were removed from nine plots, six plots were grazed by yearling cattle in August and six plots were grazed in February for the last three years of the five year study. Arthropod species richness ranged between 154 and 353 on grasses, from 120 to 266 on G. sarothrae and from 69 to 116 on P. glandulosa. There was a significant relations ...; Agrovoc Control Words: Riparian zones, Rangelands, Wildlife; View more details about this article

Title: Influence of avian predation on a grasshopper (Orthoptera: Acrididae) assemblage that feeds on threadleaf snakeweed: Journal: Environmental Entomology; Authors: K. T. Gardner, and D. C. Thompson; Date: 1998; Summary: This study on the Buenos Aires National Refuge in south central Arizona examined the effects of bird predation on grasshoppers that feed on broom snakeweed (Gutierrezia sarothrae) and threadleaf snakeweed (Gutierrezia microcephala). Grasshopper (Hesperotettix viridis and Melanoplus aridus) densities of both adutls and nymphs were counted on 12 paired plots (non-caged and caged) over three years to determine the effect of bird predation on these insect populations. ...; Agrovoc Control Words: Weeds, Rangelands, Insects; View more details about this article

Title: Feeding by a native grasshopper reduces broom snakeweed density and biomass: Journal: Journal of Range Management; Authors: D. C. Thompson, K. C. McDaniel, and L. A. Torell; Date: 1996; Summary: Grasshopper herbivory was observed for two (1991-1992) at two shortgrass sites near Corona and Folsom, New Mexico. Vegetative measurements were taken before and after grasshoppers were placed in caged plots containing broom snakeweed (Gutierrezia sarothrae). Treatments were 0, 1, 3 and 5 grasshoppers per plant resulting in none, light, moderate and heavy grazing intensities, respectively. ...; Agrovoc Control Words: Weeds, Rangelands, Grasshoppers; View more details about this article

Title: Effects of differential livestock use on key plant species and rodent populations within selected Oryzopsis hymenoides/Hilaria jamesii communities of Glen Canyon National Recreation Area: Journal: Southwestern Naturalist; Authors: B. S. Bich, J. L. Butler, and C. A. Schmidt; Date: 1995; Summary: Changes in vegetation and rodent populations along a grazing intensity continuum was examined in an Oryzopsis hymenoides/Hilaria james community within the Glen Canyon National Recreation Area of south-central Utah. Four sites (4 km - heavy, 7 km - moderate, 9 km- light, and 13 km â€“ nongrazed) which were previously subjected to different levels of disturbance by cattle were included in this study. Density, basal and foliar cover were measured over two years. Sherman live traps were established at the heavy, light, and nongrazed sampling sit ...; Agrovoc Control Words: Grazing intensity, Riparian zones, Rodents; View more details about this article