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Greater Sage-Grouse In A Grazed Landscape: Habitat Selection, Demographic Rates, And Population Trends In Central Montana, Jennifer Evans Helm
Greater Sage-Grouse In A Grazed Landscape: Habitat Selection, Demographic Rates, And Population Trends In Central Montana, Jennifer Evans Helm
Graduate Student Theses, Dissertations, & Professional Papers
Greater sage-grouse (Centrocercus urophasianus) abundance has declined across the species’ range due to habitat loss, degradation, and fragmentation. To address this decline, information is needed to guide habitat conservation priorities and population management efforts. This includes information about patterns of habitat selection at multiple spatial scales, habitat and land use variables that affect demographic rates, and population trend estimates. We collected ten years of data (2011-2020) on sage-grouse demographic rates and habitat selection, as well as on vegetation and livestock grazing patterns, to address these topics. We were specifically interested in the effects of a rotational grazing system implemented through …
Avian Community Responses To Bison Grazing In North American Intermountain Grasslands, Danielle A. Fagre
Avian Community Responses To Bison Grazing In North American Intermountain Grasslands, Danielle A. Fagre
Graduate Student Theses, Dissertations, & Professional Papers
Grassland and shrubland songbird species are a guild of conservation concern in North America. Many of these species have experienced severe population declines, due to habitat loss and land use change. This makes the conservation and management of remaining habitat of crucial importance for this guild. Grazing by large herbivores is an ecosystem process in grassland systems, and in North America, one of the major historic grazers was the Plains bison (Bison bison). Bison are considered ecosystem engineers, because they modify habitat to be more or less suitable for other species, such as grassland and shrubland songbirds. Bison …
Assessing Changes In Avian Communities, Jessie D. Golding
Assessing Changes In Avian Communities, Jessie D. Golding
Graduate Student Theses, Dissertations, & Professional Papers
Grazing is a potentially powerful tool to address wildlife declines associated with land use conversion in the western United States. Grazing systems can be manipulated to achieve desired vegetation outcomes, preserve native habitat and economically benefit multiple stakeholders. As a result, systems designed to benefit native ecosystems are being widely implemented. However, the benefits of these grazing systems on many wildlife communities remain relatively unexplored. Songbirds provide an ideal study system to test these benefits because they continue to use native habitat that is currently grazed. Given limited time and resources, conservation practitioners often monitor a single focal species or …
Monitoring Noxious Weeds Invasions In Riparian Areas Following Livestock Exclusion Of The Upper Big Hole River Valley: Adaptive Management Under The Candidate Conservation Agreement With Assurances Project, Ana Ingrid Pederson
Graduate Student Theses, Dissertations, & Professional Papers
As a 2008 summer intern working for the Nature Conservancy, I arrived in the Big Hole Valley and was introduced to an innovative federal land management program initiated to benefit government land managers, local ranchers, and the general public while increasing ecological integrity in the valley and recovering the fluvial Arctic grayling species. The government program offered funding assistance to local ranchers for conservation projects that would help recover the species, but the landowner had to agree to a few stipulations; among them are riparian enclosures fenced for 5 years to exclude all domestic grazing. The goal of this project …
Season-Of-Use And The New Model| Rest-Rotation Grazing, Don T. Nebeker
Season-Of-Use And The New Model| Rest-Rotation Grazing, Don T. Nebeker
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.
Study Of Range Condition In A Fescue Grassland In Western Montana, Robert Burns Murray
Study Of Range Condition In A Fescue Grassland In Western Montana, Robert Burns Murray
Graduate Student Theses, Dissertations, & Professional Papers
No abstract provided.