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The distribution of the greater sage-grouse (hereafter sage-grouse; Centrocercus urophasianus) has declined to 56% of its pre-settlement distribution (Schroeder et al. 2004) and abundance of males attending leks has decreased substantially over the past 50 years throughout the species’ range (Garton et al. 2011, Garton et al. 2015, WAFWA 2015). Livestock grazing is a common land use within sage-grouse habitat, and livestock grazing has been implicated by some experts as one of numerous factors contributing to sage-grouse population declines (Beck and Mitchell 2000, Schroeder et al. 2004). However, there are also numerous mechanisms by which livestock grazing might benefit sage-grouse (Beck and Mitchell 2000, Crawford...
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FY2016Monitor the diversity and abundance of winged insects (including Lepidoptera, Hymenoptera, Coleoptera, Diptera, and Hemiptera), which include many key insect pollinators, using an array of passive and active trapping methods. Monitor bat diversity and relative densities using passive acoustic monitoring stations (we will use full-spectrum passive recording units). Monitor diversity and abundance of reptiles (lizards and snakes), using trap arrays (pitfall and coverboard) and time-constrained visual encounter surveys. Create empirically supported models of reptile, bat, and insect diversity and abundance as a function of vegetation structure and composition, microclimate, and other environmental variables,...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Datasets/Database, Federal resource managers, Great Basin, Great Basin, All tags...
The distribution of the greater sage-grouse (hereafter sage-grouse; Centrocercus urophasianus) has declined to 56% of its pre-settlement distribution (Schroeder et al. 2004) and abundance of males attending leks has decreased substantially over the past 50 years throughout the species’ range (Garton et al. 2011, Garton et al. 2015). Livestock grazing is a common land use in the sagebrush ecosystems that support sage-grouse, and livestock grazing has been implicated by some experts as one of numerous factors contributing to sage-grouse population declines (Beck and Mitchell 2000, Schroeder et al. 2004). However, there are also numerous mechanisms by which livestock grazing might benefit sage-grouse (Beck and Mitchell...
This presentation aired as part of the Great Basin LCC webinar series on September 13, 2017. Speakers include Courtney Conway, Idaho Cooperative Fish and Wildlife Research Unit, and Paul Makela, Bureau of Land Management.Description: Greater Sage-grouse have declined since the mid-1960s, and grazing is the most extensive land use within sage-grouse habitat. The speakers will present progress on a 10-year project designed to document the effects of cattle grazing on: 1) demographic traits of Greater Sage-grouse; 2) sage-grouse habitat characteristics, 3) insect abundance, which is important prey for sage-grouse chicks, and 4) abundance of all other bird species. The research team works at five study sites in Idaho...
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FY2016Develop and utilize both correlative and experimental approaches to evaluate effects of different intensities of spring cattle grazing on sage-grouse habitat selection, insect abundance, and sage-grouse demographic and behavioral traits. Collect data and document the effects of different levels of spring cattle grazing intensity on:1) sage-grouse demographic traits; 2) abundance and biomass of arthropods; 3) sage-grouse nest concealment and other vegetation/habitat features.Analyze the relationship between cattle grazing and sage-grouse demography at multiple spatial scales and evaluate the effects of experimental changes in cattle grazing on sage-grouse reproductive parameters.
    map background search result map search result map Effects of Spring Cattle Grazing on Sage-grouse Demographic Traits Measuring the Regional Impacts of Pinyon and Juniper Removal on Insect, Bat, and Reptile Communities Effects of Spring Cattle Grazing on Sage-grouse Demographic Traits Measuring the Regional Impacts of Pinyon and Juniper Removal on Insect, Bat, and Reptile Communities