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This dataset consists of a series of rasters covering the conterminous United States. Each raster is a one kilometer (km) grid for 18 selected Census of Agriculture statistics mapped to land use pixels for the time period 1950 to 2012. A supplemental set of 9 statistics mapped at the entire county level are also provided as 1-km rasters. The rasters are posted as ArcGIS grids. The statistics represent values for crops, livestock, irrigation, fertilizer, and manure usage. Most statistics are mapped for all 14 Census of Agriculture reporting years in that time frame: 1950, 1954, 1959, 1964, 1969, 1974, 1978, 1982, 1987, 1992, 1997, 2002, 2007, and 2012.
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This database contains literature citations and associated summaries pertaining to livestock grazing effects on amphibians and their habitats, with an emphasis on the Oregon spotted frog (Rana pretiosa) and other listed/sensitive wetland-breeding amphibians in the western United States. This is not meant to be an exhaustive list, nor did we perform a systematic meta-analysis; rather, literature records were included based on topical relevance. *HINT: If you are looking for the database SEARCH TOOL, scroll down to 'Attached Files' and download 'Annotated_bibliography_with_search_tool.accdb.' Open the database file to enter the search form.* This data release supersedes Rowe, J.C., Pearl, C.A., Adams, M.J., and McCreary,...
In 2006/2007 the Adobetown Herd Management Area (HMA) was rounded up to bring the HMA to its Appropriate Management Level (AML). Given that the HMA is now at AML, a suite of projects have been identified that will improve wildhorse and livestock distribution, rangeland health, and reduce wildhorse movement outside the HMA. The majority of livestock use in this area includes winter sheep, and water development is lacking throughout the HMA. Six miles of pipeline, a number of short pipelines, troughs and supplies for several water wells are proposed. An existing network of pipelines and troughs could be rehabilitated with the purchase and installation of a large solar pump. Four spring developments and small pits...
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This product provides tabular estimates of kilograms of nitrogen and phosphorus from a) fertilizer, and b) manure, for counties in the conterminous United States for the period 1950-2017. Data are generated for approximate five-year periods over the time, coinciding with U.S. Department of Agriculture Census of Agriculture census years. This data release also includes a model archive suitable for recreating the 2017 fertilizer estimates.
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This product provides tabular data from the U.S. Department of Agriculture (USDA) Census of Agriculture for selected items for the period 1950-2017 for counties in the conterminous United States. Data from 1950-2012 are taken from LaMotte (2015) and 2017 data are retrieved from the USDA QuickStats online tool. Data which are withheld in the Census of Agriculture are filled with estimates. The data include crop production values for 12 commodities (for example, corn in bushels), land use values for 7 land use types (for example, acres of total cropland), and 9 values for livestock types (for example, number of hogs and pigs). The data are largely intended as a 2017 update to the LaMotte dataset for items of research...
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This is a spatially-explicit state-and-transition simulation model of rangeland vegetation dynamics in southwest South Dakota. It was co-designed with resource management partners to support scenario planning for climate change adaptation. The study site encompasses part of multiple jurisdictions, including Badlands National Park, Buffalo Gap National Grasslands, and Pine Ridge Indian Reservation. The model represents key vegetation types, grazing, exotic plants, fire, and the effects of climate and management on rangeland productivity and composition (i.e., distribution of ecological community phases). See Miller et al. (2017) for further details. The model was built using the ST-Sim software platform (www.apexrms.com/stsm)....
Content Changing aspen distribution in response to climate change and fire is a major focus of biodiversity conservation, yet little is known about the potential response of aspen to these two driving forces along topoclimatic gradients. Objective This study is set to evaluate how aspen distribution might shift in response to different climate-fire scenarios in a semi-arid montane landscape, and quantify the influence of fire regime along topoclimatic gradients. Methods We used a novel integration of a forest landscape succession and disturbance model (LANDIS-II) with a fine-scale climatic water deficit approach to simulate dynamics of aspen and associated conifer and shrub species over the next 150 years under...
Arid grasslands are often presumed to exist in one of two alternate stable states: grassland or desertified shrubland. While the conversion to shrubland can occur rather rapidly following intense overgrazing, the recovery of perennial grasses is often presumed to be difficult or impossible even with livestock removal. We examined vegetation and rodent communities at a desertified shrubland site from which livestock had been removed for more than four decades. Total shrub cover was similar but differed in composition across the grazing fence. Larrea tridentata had significantly higher cover outside while Parthenium incanum had significantly higher cover inside the fence. Basal perennial grass cover was significantly...
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FY2017Removal of livestock grazing is a common prescription to promote ecosystem recovery after wildfire (and subsequent emergency site rehabilitation efforts). Ecosystem recovery is typically considered from a terrestrial perspective, but wildfire and grazing can strongly influence aquatic ecosystems as well, especially smaller and fragmented stream networks, which are prevalent in the Great Basin (Minshall et al. 1989[1]; Dunham et al. 2003[2]; Luce et al. 2012[3]). Understanding these influences is essential for managing fire and grazing. Examples include identifying timeframes for resuming livestock grazing following wildfire, and the interactions between livestock grazing, fuels, and recovery of stream-side...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Data Acquisition and Development, Federal resource managers, Generalized Random Tesselation Stratified, Generalized Random Tesselation Stratified, Generalized Random Tesselation Stratified, All tags...
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FY2014This projects main goals are to assess the effects of grazing by feral horses and livestock on Greater Sage-grouse demography and habitats. The Sheldon-Hart Mountain National Wildlife Refuge Complex and adjacent lands managed by the Bureau of Land Management provide the unique opportunity to assess sage-grouse populations free of feral horses and livestock grazing, populations that only have feral horses, as well as populations that coincide with both livestock grazing and feral horses. The project team will:1)Use historical sage-grouse data collected from Hart Mountain before and immediately after livestock were removed in the early 1990s, and historical data from Sheldon before the irruption of feral horses...
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Data can be accessed through a map service (select one of the options in the grey bar above the inset map) or viewed in the BLM's GeoCommunicator interactive map.
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Project Synopsis: habitat conditions for both livestock and wildlife are less than desired due, in part, to past management practices on the ranch and inability to better control current cattle grazing location and timing. Plans are to provide water (successful water well drilled in 2011) and fencing for grazing management, habitat improvements on mule deer winter range including invasive plant species (juniper and cheatgrass) control, and riparian improvements in Wood Draw to remove invasive juniper and control noxious weeds including musk thistle and leafy spurge.
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Project Synopsis: the strategy for restoring the habitat on Currant Creek is to permanently exclude unauthorized livestock from the stream and adjacent meadows unless livestock are authorized in the special use pasture. Livestock are only to be permitted to graze every 3rd year for 3 weeks or as approved by authorized officer. (It's been about ten years since grazing has been authorized in the area due to resource concerns.) The most imminent threat to the currant creek habitat is continual cattle drift into the drainage. This results in the unauthorized grazing of riparian vegetation and BLM projects such as willow, aspen, and other woody species plantings. The area is important habitat (ACEC area) for Colorado...
Populations of beaver and willow have not thrived in riparian environments that are heavily browsed by livestock or ungulates, such as elk. The interaction of beaver and elk herbivory may be an important mechanism underlying beaver and willow declines in this competitive environment. We conducted a field experiment that compared the standing crop of willow three years after simulated beaver cutting on paired plants with and without intense elk browsing (85% utilization rate). Simulated beaver cutting with intense elk browsing produced willow that was small (biomass and diameter) and short, with far fewer, but longer, shoots and a higher percentage of dead biomass. In contrast, simulated beaver cutting without elk...
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These data were compiled for an assessment of rangeland ecosystem conditions of the Grand Canyon - Parashant National Monument. The approximately one-million-acre Grand Canyon-Parashant National Monument (PARA) is located in the northwest corner of Arizona and co-managed by the Bureau of Land Management (BLM) and National Park Service (NPS). This report is focused on the ca. 200,000 acres of NPS administered lands—one of the largest NPS units where livestock grazing is a permitted land-use activity. Many ecosystems in PARA are characterized by a low degree of resilience to improper grazing due to low and variable precipitation. PARA is marked by an extremely high degree of environmental heterogeneity, including...
On October 27, Paul Rogers of the Western Aspen Alliance discussed the impact of climate change on aspen ecosystems, with an emphasis on aspen fire types.The presentation covered the variability of aspen responses to fire and emphasized unique fire-related systems to wean practitioners from one-size-fits-all prescriptions for aspen forests. The Western Aspen Alliance is a partnership established to improve the management of aspen by linking ecological, social and economic sciences through collaboration and information sharing.
Cheatgrass (Bromus tectorum L.) is an invasive annual grass that creates near-homogenous stands in areas throughout the Intermountain sagebrush steppe and challenges successful native plant restoration in these areas. A clipping experiment carried out at two cheatgrass-dominated sites in eastern Oregon (Lincoln Bench and Succor Creek) evaluated defoliation as a potential control method for cheatgrass and a seeding preparation method for native plant reseeding projects. Treatments involved clipping plants at two heights (tall=7.6 cm, and short=2.5 cm), two phenological stages (boot and purple), and two frequencies (once and twice), although purple-stage treatments were clipped only once. Treatments at each site were...
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This aggregate national dataset identifies allotment polygons within BLM managed public lands. Allotment polygon features are derived from the pasture polygons.
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A hierarchical occupancy model adapted from Royle & Dorazio (2008) and Rota et al. (2011) for use in R. References: Royle, J.A. and Dorazio, R.M., 2008. Hierarchical modeling and inference in ecology: the analysis of data from populations, metapopulations and communities. Academic Press. doi:10.1016/B978-0-12-374097-7.50001-5 J. Andrew Royle, Robert M. Dorazio, Rota, C. T., Fletcher Jr, R. J., Dorazio, R. M. and Betts, M. G. (2009), Occupancy estimation and the closure assumption. Journal of Applied Ecology, 46: 1173-1181. doi:10.1111/j.1365-2664.2009.01734.x
map background search result map search result map Adobetown Range Area Improvements National Grazing Allotments (BLM managed) RSFO-Currant Creek Habitat Restoration Condict Ranch Habitat Improvements II National 1-kilometer rasters of selected Census of Agriculture statistics allocated to land use for the time period 1950 to 2012 State-and-transition simulation model of rangeland vegetation in southwest South Dakota (1969-2050) Wildfire, grazing and availability of water in sage steppe ecosystems Hierarchical Occupancy Model Code for R and Accompanying Files Assessment of Impacts of Feral Horses and Livestock Grazing on Sage-grouse and their Habitats: Long-term trends in sage-grouse demography and habitats on the Sheldon-Hart Mountain NWRC and adjacent lands Rangeland Ecosystem Data, Grand Canyon - Parashant National Monument, AZ, USA BLM REA NGB 2011 Combined USFS and BLM Grazing Allotments BLM REA NGB 2011 BLM Grazing Allotment Pastures Tabular county-level nitrogen and phosphorus estimates from fertilizer and manure for approximately 5-year periods from 1950 to 2017 Tabular data for selected items from the Census of Agriculture for the period 1950-2017 for counties in the conterminous United States Assessment of Impacts of Feral Horses and Livestock Grazing on Sage-grouse and their Habitats: Long-term trends in sage-grouse demography and habitats on the Sheldon-Hart Mountain NWRC and adjacent lands Wildfire, grazing and availability of water in sage steppe ecosystems State-and-transition simulation model of rangeland vegetation in southwest South Dakota (1969-2050) Condict Ranch Habitat Improvements II RSFO-Currant Creek Habitat Restoration BLM REA NGB 2011 BLM Grazing Allotment Pastures BLM REA NGB 2011 Combined USFS and BLM Grazing Allotments Hierarchical Occupancy Model Code for R and Accompanying Files National 1-kilometer rasters of selected Census of Agriculture statistics allocated to land use for the time period 1950 to 2012 Tabular county-level nitrogen and phosphorus estimates from fertilizer and manure for approximately 5-year periods from 1950 to 2017 Tabular data for selected items from the Census of Agriculture for the period 1950-2017 for counties in the conterminous United States National Grazing Allotments (BLM managed)