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Riparian invasive species distribution within the DRECP study area; created for use in terrestrial intactness modeling. This dataset is binary. A cell value of 1 indicates the presence of one or more invasive riparian species at that location. A cell value of 0 indicates the absence of riparian invasives at that location. This dataset was created by combining the following classes from LANDFIRE EVT V1.1, NatureServe Landcover, Jarnevich, et al., and Tamarisk 1965 line. LANDFIRE EVT V1.1 2180: Introduced Riparian Vegetation NatureServe Landcover 8480: Introduced Riparian Vegetation Jarnevich, et al (modeled Tamarisk) Thresholded at 0.6 Tamarisk 1965 line (http://www.tamariskmap.org) All line features...
Bromus tectorum (cheatgrass) has widely invaded the Great Basin, U.S.A. The sporadic natural phenomenon of complete stand failure (‘die- off’) of this invader may present opportunities to restore native plants. A recent die-off in Nevada was precision-planted with seeds of the native grasses Poa secunda (Sandberg bluegrass) and Elymus elymoides (bottlebrush squirreltail), of both local and nonlocal origin, to ask: 1) Can native species be restored in recent B. tectorum die-offs? And 2) Do local and nonlocal seeds differ in performance? Additionally, we asked how litter removal and water addition affected responses. Although emergence and growth of native seeds was lower in die-off than control plots early in year...
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FY2013Cheatgrass die-offs are unexplained instances of stand failure observed in areas of Nevada and Utah, where cheatgrass fails to grow even though it has been a dominant component of plant communities in the past. The goals of this project are to:1) provide information on the size and extent of historic (1985 - 2012) die-offs in the Winnemucca area using satellite imagery, and 2) determine if die-offs are restoration opportunities by planting and monitoring local and commercially available native grasses in die-off areas.Support is requested to fund monitoring of the restoration project through a second growing season and to develop predictive spatial models of die-off from analysis of satellite imagery and GIS...
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Relative risk for expansion of Russian olive summarized by 5th level watersheds for the Wyoming Basin Rapid Ecoregional Assessment project area. Current risk of expansion based on suitability models using recent climatic conditions (1980 to 2009). Expansion risk is classified as low for probabilities less than 0.33, medium for probabilities between 0.34 and 0.66, and high for probabilities greater than 0.67. Probabilities based on occurrence models developed by Jarnevich and Reynolds (2011) and Jarnevich and others (2011). Hatched lines denote watersheds where LANDFIRE indicted Russian olive and (or) tamarisk presence. These data are provided by Bureau of Land Management (BLM) "as is" and may contain errors or omissions....
This package is designed to estimate, summarize, and visualize wildlife aggregation metrics using location information like GPS collar data or digitized animal locations from satellite or UAS imagery. This decision tool provides information on disease risk for managers and researchers to compare across areas or time periods of adaptive management designed to shift densities to reduce risk of CWD, overgrazing, or other issues. It could also be used for cattle or horses.
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This map was created to help assess impacts on nonindigenous aquatic species distributions due to flooding associated with Hurricane Maria. Storm surge and flood events can assist expansion and distribution of nonindigenous aquatic species through the connection of adjacent watersheds, backflow of water upstream of impoundments, increased downstream flow, and creation of freshwater bridges along coastal regions. This map will help natural resource managers determine potential new locations for individual species, or to develop a watch list of potential new species within a watershed. These data include a subset of data from the Nonindigenous Aquatic Species Database, that fall within the general area of the 2017...
The phenomenon of cheatgrass die-off is a common and naturally- occurring stand failure that can eliminate the presence of this annual grass for a year or more, affecting tens to hundreds of thousands of acres in some years. We designed a study to determine if the temporary lack of cheatgrass caused by die-offs is a restoration opportunity. We seeded native perennial species at three die-offs in the Winnemucca, Nevada area. Native grass establishment in die-offs was almost three times higher in the first season at all sites, relative to adjacent areas without die-off. In the second season, establishment was five times higher in the die-off at two sites, and plants were notably larger in the die-off at the third...
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This map was created to help assess impacts on nonindigenous aquatic species distributions due to flooding associated with Hurricane Irma. Storm surge and flood events can assist expansion and distribution of nonindigenous aquatic species through the connection of adjacent watersheds, backflow of water upstream of impoundments, increased downstream flow, and creation of freshwater bridges along coastal regions. This map will help natural resource managers determine potential new locations for individual species, or to develop a watch list of potential new species within a watershed. These data include a subset of data from the Nonindigenous Aquatic Species Database, that fall within the general area of the 2017...
The Nonindigenous Aquatic Species Database (NAS) information resource is an established central repository for spatially referenced biogeographic accounts of introduced aquatic species. The NAS website provides scientific reports, online/real-time queries, spatial data sets, distribution maps, fact sheets, and general information.
On July 14, 2015 speaker Owen Baughman presented on his work in restoring areas of cheatgrass die-off.The phenomenon of complete stand failure (or die-off) of cheatgrass results in the absence of this invasive grass from the invaded site for one or more growing seasons. Our work seeks to determine if this phenomenon represents an opportunity for restoring native species. Results from two experiments at four Northern Nevada sites over three years are demonstrating that seeded native grasses can have higher success in recent die-offs when compared to seedings in sites that did not die-off. These promising findings indicate that restoring native diversity in highly-invaded systems can be facilitated by targeting die-offs...
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This feature class contains known invasive plant species. This dataset represents the inventory mapping results of invasive plant species for the San Diego County. SANDAG's contractor, AECOM, completed an inventory mapping of invasive plant species. SANDAG will keep updating the invasive species layer when the new information is available.Â
FY2015This project assesses the efficacy of ACK55, a naturally occurring bacterium that decreases invasive annual grasses by up to 70% on test sites. Working with the USDA, USFWS and the Great Basin Institute, researchers plan to treat ten, 1-acre plots on private lands within sage-grouse Biologically Significant Areas to determine the efficacy of ACK55 in warm and dry soils.
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The Nonindigenous Aquatic Species Database (NAS) information resource is an established central repository for spatially referenced biogeographic accounts of introduced aquatic species. The NAS website provides scientific reports, online/real-time queries, spatial data sets, distribution maps, fact sheets, and general information.
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FY2014The project team surveyed land managers working on invasive weeds in the west. These surveys provided information for the Western Association of Fish and Wildlife (WAFWA) Wildfire and Invasive Species Initiative Working Group. The survey results and other findings were used to inform a report titled Invasive Plant Management and Greater Sage-Grouse Conservation,published last spring.
The MRLC Rangeland Viewer provides a dynamic platform for multi-temporal data visualization of RCMAP rangeland fractional component time-series data, base map, and Ecological Potential data and supports user defined data subsetting and downloads. Additionally, users have the ability to generate time-series plots of vegetation cover values by relevant management unit (allotment/watershed/etc).
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Mitigation of ecological damage caused by rangeland wildfires has historically been an issue restricted to the western United States. It has focused on conservation of ecosystem function through reducing soil erosion and spread of invasive plants. Effectiveness of mitigation treatments has been debated recently. We searched for literature on postfire seeding of rangelands worldwide. Literature databases searched included SCOPUS, Dissertation Abstracts, Forest Science, Tree search, Web of Science, Google Scholar, and science.gov. Search terms within publications included fire or wildfire in combination with seeding, rehabilitation, restoration, revegetation, stabilization, chaining, disking, drilling, invasives,...
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The Nonindigenous Aquatic Species Database (NAS) information resource is an established central repository for spatially referenced biogeographic accounts of introduced aquatic species. The NAS website provides scientific reports, online/real-time queries, spatial data sets, distribution maps, fact sheets, and general information.
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This dataset is a compilation of Flathead Catfish occurrence data from museums, literature, and state agencies. Sources include museums that are members of the Global Biodiversity Information Facility, VertNet, FishNet2, state fish books, state reports, state stocking data for states surrounding the Great Lakes, and historical literature.
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The Nonindigenous Aquatic Species Database (NAS) information resource is an established central repository for spatially referenced biogeographic accounts of introduced aquatic species. The NAS website provides scientific reports, online/real-time queries, spatial data sets, distribution maps, fact sheets, and general information.


map background search result map search result map Nonindigenous Aquatic Species Database Asian Tiger Shrimp 2012 Invasive Plant Species, San Diego County Riparian Invasive Species (LANDFIRE EVT V1.1, NatureServe Landcover, Jarnevich, Tamarisk 1965 line), DRECP Data Understanding the Causes and Consequences of Cheatgrass Die-offs in the Great Basin Invasive Species Management Contributions to Greater Sage-grouse Conservation West-wide. Mechanisms of aquatic species invasions across the South Atlantic Landscape Conservation Cooperative region Assessment of ACK55 as a Biocontrol of Invasive Annual Grasses in Nevada Nonindigenous aquatic species and potential spread after Hurricane Maria Nonindigenous aquatic species and potential spread after Hurricane Irma Flathead catfish occurrence data for the Great Lakes Basin 1890-2017 BLM REA MAR 2012 Nonindigenous Aquatic Species Database BLM REA WYB 2011 Ch06 Invasives Assessment of ACK55 as a Biocontrol of Invasive Annual Grasses in Nevada 2012 Invasive Plant Species, San Diego County Nonindigenous aquatic species and potential spread after Hurricane Maria BLM REA MAR 2012 Nonindigenous Aquatic Species Database Understanding the Causes and Consequences of Cheatgrass Die-offs in the Great Basin Invasive Species Management Contributions to Greater Sage-grouse Conservation West-wide. Riparian Invasive Species (LANDFIRE EVT V1.1, NatureServe Landcover, Jarnevich, Tamarisk 1965 line), DRECP Nonindigenous aquatic species and potential spread after Hurricane Irma Flathead catfish occurrence data for the Great Lakes Basin 1890-2017 Mechanisms of aquatic species invasions across the South Atlantic Landscape Conservation Cooperative region BLM REA WYB 2011 Ch06 Invasives Nonindigenous Aquatic Species Database Asian Tiger Shrimp