Skip to main content
Advanced Search

Filters: Tags: non-native (X)

26 results (118ms)   

View Results as: JSON ATOM CSV
thumbnail
This map shows risk models for invasive species within the ecoregion. Samples of invasive species are presenting -- falling within 4 categories (exotic, annual grasses, noxious forbs, and woody riparian). Bioclimate data for cheatgrass and tamarisk weed is also shown. The input dataset used for all analysis done for these models 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...
thumbnail
This map shows risk models for invasive species within the ecoregion. Samples of invasive species are presenting -- falling within 4 categories (exotic, annual grasses, noxious forbs, and woody riparian). Bioclimate data for cheatgrass and tamarisk weed is also shown. The input dataset used for all analysis done for these models 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...
thumbnail
This dataset contains information on all snakehead fishes found in the United States. It is a subset of a larger database, the Nonindigenous Aquatic Species Database (NAS). This 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.
thumbnail
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...
This report represents a river reach application of the reset concept to examine survival and growth of larval razorback sucker and bonytail in floodplains. The floodplain reset concept refers to eliminating residual fish populations from floodplains prior to their connection to the river during spring flood flows. Despite drought conditions, sufficient river flows allowed the evaluation of the reset concept to enhance larval razorback sucker Xyrauchen texanus and bonytail Gila elegans survival during 2003-2004. Species composition in study floodplains shifted from communities dominated by riverine species to to those preferring lentic conditions following recruitment within floodplains. The number, biomass, and...
thumbnail
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...
thumbnail
Weed presence in Idaho, consolidated from datasets provided by BLM Boise District, BLM Twin Falls District, BLM Idaho Falls District, BLM Coeur d'Alene District, and the Idaho Department of Agriculture, from December 2005. Many errors noted. Users must review attributes before using. No corrections to any errors or inconsistencies have been made. See supplementary information. Approved by data steward 10/15/2008 Truncation of attributes may have occurred when File Geodatabase exported to a shapfile. Draft standards such as genus/species exist in the database design, but were not used. Some fields such as National ownership, local ownership, and source are inconsistently or incorrectly used. The draft standards...
thumbnail
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.
thumbnail
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.
thumbnail
This dataset contains information on the Bullseye Snakehead fish found only in southeastern Florida. It is a subset of a larger database, the Nonindigenous Aquatic Species Database (NAS). This 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.
Cheatgrass, a non-native annual grass, dominates millions of hectares in semiarid ecosystems of the Intermountain West (USA). Post-fire invasions can reduce native species diversity and alter ecological processes. To curb cheatgrass invasion, land managers often seed recently burned areas with perennial competitor species. We sampled vegetation within burned (19 years post-fire) and nearby unburned (representing pre-fire) pi onjuniper (Pinus edulisJuniperus osteosperma) woodland and sagebrush (Artemisia sp.) in western Colorado to analyze variables that might explain cheatgrass cover after fire. A multiple regression model suggests higher cheatgrass cover after fire with: (1) sagebrush v. pi onjuniper; (2) higher...
thumbnail
Invasive Plant Survey Within California Coastal Watersheds from Salinas to Tijuana (currently in Draft form). This dataset is a subset including the southern portion of the study area, covering an area from the Santa Ana river watershed to the USA-Mexico border. Mapped species include giant reed, pampas grass, jubata grass, Mexican fan palm, and Canary Island date palm. More information can be found at: http://www.cal-ipc.org/ip/mapping/arundo/index.php.
thumbnail
This dataset contains the non-freshwater specimens from the Nonindigenous Aquatic Species (NAS) database, which was established as a central repository for spatially referenced biogeographic accounts of introduced aquatic species. This dataset does not include any marine fish. The NAS program provides scientific reports, online/real-time queries, spatial data sets, regional contact lists, and general information. The data is made available for use by biologists, interagency groups, and the general public. The geographical coverage is the United States.
thumbnail
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.
thumbnail
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.
thumbnail
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.
thumbnail
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,...
thumbnail
Density of non-native plants separated into categories of invasive plants (invasiveness rank of 60 or greater) and non-native plants (invasiveness rank of 59 or less) in the Yukon River Lowlands - Kuskokwim Mountains - Lime Hills. 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...
thumbnail
We provide a comprehensive review of the status of non-native fishes in the central Indian River Lagoon (from Cape Canaveral to Grant-Valkaria, east of I-95) through literature review and field surveys. Historical records exist for 17 taxa (15 species, one hybrid, one species complex). We found historical records for one additional species and collected one species in our field survey that had never been recorded in the region before (and which we eradicated). Thus, we evaluate 19 total taxa herein. Of these, we document range expansion of four salt-tolerant cichlid species, extirpation of six species that were previously recorded from the area and eradication of three species. There was no noticeable change in...


map background search result map search result map Weed Presence in Idaho (through 2005) Tongass National Forest Invasive Plants 2012 Nonindigenous Aquatic Species Database Asian Tiger Shrimp Invasive plant survey for California coastal watersheds (southern section) Nonindigenous Aquatic Species Database Nonindigenous Aquatic Species (NAS) Database Non-freshwater Non-fish Specimens Mechanisms of aquatic species invasions across the South Atlantic Landscape Conservation Cooperative region Non-native fishes of the central Indian River Lagoon Nonindigenous aquatic species and potential spread after Hurricane Maria Nonindigenous aquatic species and potential spread after Hurricane Irma Observations of bullseye snakehead (Channa marulius) in Florida Flathead catfish occurrence data for the Great Lakes Basin 1890-2017 Snakehead fishes in the United States of America BLM REA MAR 2012 Nonindigenous Aquatic Species Database BLM REA YKL 2011 Non-Native Plant Density in Yukon River Lowlands - Kuskokwim Mountains - Lime Hills BLM REA CBR 2010 MBR Invasive Species BLM REA CBR MBR 2010 Invasive Species Non-native fishes of the central Indian River Lagoon Invasive plant survey for California coastal watersheds (southern section) Nonindigenous aquatic species and potential spread after Hurricane Maria BLM REA MAR 2012 Nonindigenous Aquatic Species Database Weed Presence in Idaho (through 2005) Tongass National Forest Invasive Plants 2012 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 CBR MBR 2010 Invasive Species BLM REA CBR 2010 MBR Invasive Species BLM REA YKL 2011 Non-Native Plant Density in Yukon River Lowlands - Kuskokwim Mountains - Lime Hills Snakehead fishes in the United States of America Nonindigenous Aquatic Species Database Asian Tiger Shrimp Nonindigenous Aquatic Species (NAS) Database Non-freshwater Non-fish Specimens Nonindigenous Aquatic Species Database