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This map shows the distribution of ecological systems in the study area. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate. The User is encouraged to carefully consider the content of the metadata file associated with these data. The BLM should be cited as the data source in any products derived from these data.
USGS Historical Quadrangle in GeoPDF.
Speaker: Dr. Keirith Snyder, USDA ARS, Great Basin Rangelands Research Unit, Reno, NV The opportunistic encroachment of native pinyon and juniper trees into areas formerly dominated by sagebrush has reduced the presence of shrubs and grasses, impacting critical habitat and forage availability. Pinyon and juniper currently occupy 19 million hectares in the Intermountain West. Prior to 1860, it is estimated that 2/3 of pinyon and juniper woodlands were sagebrush communities. This presentation will give an overview of the Porter Canyon Experimental Watershed, where tree-felling treatments are being studied. Porter Canyon is located in central Nevada in the Desatoya Mountains. A network of sensors has been installed...
Categories: Data;
Tags: Completed,
Conservation NGOs,
Desatoya Mountains,
Desatoya Mountains,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Vectorized version of the raster model with the PJ and Conifer interface areas merged across the west. A raster model was developed to identify sagebrush land cover which is in close proximity to conifer land cover, thus suggesting a risk for conifer encroachment. To achieve this end product the following general steps were taken: 1. Extract sagebrush land cover types from GAP/ReGAP data. 2. Extract conifer land cover types (excluding those corresponding to pinyon, juniper, and pinyon-juniper) from GAP/ReGAP data. 3. Reclassify and add these raster datasets. 4. Conduct a focal statistics operation. 5. Multiply the above product by the extracted, reclassified sagebrush raster to identify sagebrush cells adjacent...
Types: Downloadable;
Tags: BER,
BLM,
Baseline Environmental Report,
Bureau of Land Management,
Conifer,
FY2016This project will evaluate the effects of vegetation treatments on population connectivity, genetic diversity and gene flow of wildlife species across the full extent of the Great Basin LCC. The recently approved BLM and Forest Service Land Use Plan Amendments will implement millions of acres of treatments in support of greater sage-grouse conservation. It is essential to evaluate the potential benefits and risks of these treatments on the connectivity and fragmentation of the landscape for multiple non-target species. We will use a dynamic landscape model to simulate fire and treatments, allowing each to vary by type (e.g., juniper removal, prescribed fire), extent, and influence on vegetation and fuels....
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Applications and Tools,
CA1,
CA1,
CA1,
This report summarizes activities and data collection outcomes for Cooperative Agreement Award F16AC01182, specifically those research activities conducted as a multi-scale assessment of the effects of juniper removal on songbird, small mammal, and raptor/corvid species. In 2017, we conducted 270 surveys for songbirds, 10 surveys for small mammals, and 77 surveys for avian predators that potentially affect greater sage-grouse. We detected 45 songbird species, 6 mammal species, and 9 species of aerial predators. Data collected by PhD student Aaron Young (aarony@uidaho.edu) will be used as part of a doctoral dissertation. Final products are expected to include a final report, a graduate student dissertation and associated...
Background information. The South Canyon project area consists of 121,000 acres within the Upper Sevier River Watershed in southern Utah. This watershed is ranked as a high priority for restoration because of degraded riparian and upland vegetation and erosion, the presence of hazardous fuels placing communities at increased risk of wildfire, and degraded greater sage-grouse (Centrocercus urophasianus) and mule deer (Odocoileus hemionus) habitat because of the expansion and infilling of pinyon and juniper. In particular, this project was designed to reestablish and maintain sagebrush semi-desert habitat, open travel corridors, and provide benefits to sage-grouse and mule deer within and immediately adjacent to the...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Bureau of Land Management,
Conifer,
Fuels reduction project,
Habitat-based,
Herbaceous fuels management,
Background information. This fuels reduction project, which was conducted by the Bureau of Land Management’s (BLM’s) Rio Puerco Field Office, consisted of woodland habitat restoration in the Zuni Mountains approximately 45 miles south of Grants, New Mexico. Topography of the landscape includes mesas and canyons, with north-facing slopes dominated by stands of ponderosa pine with an open, grassy understory. Like other places in the American West, pinyon and juniper have encroached into open meadows and stands of ponderosa pine, which is most likely because of the lack of a natural fire regime. This change to the wooded landscape has dramatically increased hazardous fuels buildup and the associated risk of wildfire,...
Raster layers depicting the distribution of possible ecological traps to sage-grouse based on the intersection of conifer cover-classes 1 (Greater than 0 up to 10 percent) and 2 (11 up to 20 percent) with high resistance and resilience, and ecological traps within sage-grouse concentration areas and ecological traps in sage-grouse habitat.
USGS Historical Quadrangle in GeoPDF.
USGS Historical Quadrangle in GeoPDF.
Measuring the Regional Impacts of Pinyon and Juniper Removal on Insect, Bat, and Reptile Communities
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,
Land managers are responsible for developing effective strategies for conserving and restoring Great Basin ecosystems in the face of invasive species, conifer expansion, and altered fire regimes. A warming climate is magnifying the effects of these threats and adding urgency to implementation of management practices that will maintain or improve ecosystem functioning. This Factsheet Series was developed to provide land managers with brief summaries of the best available information on contemporary management issues to facilitate science delivery and foster effective management. Each peer-reviewed factsheet was developed as a collaborative effort among knowledgeable scientists and managers. The series begins with...
Categories: Data,
Publication;
Types: Citation;
Tags: California,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Great Basin,
Idaho,
LCC Network Science Catalog,
Background information.—The Pioche/Caselton Wildland-Urban Interface Project (WUI Project) was conducted by the Bureau of Land Management’s Ely District to reduce the threat of wildfire to the towns of Pioche and Caselton in southeastern Nevada. From 1980 to 2008, 149 wildfires were recorded near Pioche and Caselton and 9 of these fires each burned approximately 3,000 acres. In 2005, the Nevada Community Wildfire Risk/Hazard Assessment for Lincoln County determined that the risk of wildfire for the two towns was “extreme” (Resource Concepts, Inc., 2005). That report recommended implementing large fuels reduction treatments in order to reduce the risk of wildfire to Pioche and Caselton. In response, the Ely District...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: BLM,
Bureau of Land Management,
Conifer,
Fuels reduction project,
Habitat-based,
Aspen are thought to be declining in this region due to a combination of fire suppression, grazing and wildlife management practices, and potentially cool/wet climates of the past century which favor advancing conifer succession. Many scientists are concerned that aspen?s related species may also be losing habitat, thereby threatening the long-term local and regional viability of this important community. To date, few studies have specifically examined the role of aspen?s epiphytic lichen community. This paper presents basic community research describing the application of Indicator Species Analysis for lichens growing on aspen stems in the central Rocky Mountains of North American. Results show unique lichen assemblages...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Bear River range,
Evansia,
Idaho,
Indicator Species Analysis,
Utah,
USGS Historical Quadrangle in GeoPDF.
This map shows the current distribution of species assemblages for the ecoregion, typified by the type of environment each species assemblage is usually found (soil, tree type, or specific place). The input datasets used in the associated geospatial modeling are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications that potential users of the data may contemplate....
In addition to current distribution of each terrestrial group species, this map shows their current and near-term status within the ecoregion. Current, long-term, and summary bioclimate data is also include for several of these terrestrial group species. The input datasets used in the distribution model are also included. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions. The User assumes the entire risk associated with its use of these data and bears all responsibility in determining whether these data are fit for the User's intended use. These data may not have the accuracy, resolution, completeness, timeliness, or other characteristics appropriate for applications...
USGS Historical Quadrangle in GeoPDF.
USGS Historical Quadrangle in GeoPDF.
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