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Displaying 2621 to 2640 of 4103

  • Nonindigenous Aquatic Species Database: Fact Sheet - Zebra Mussel

    • DOI. USGS. Wetland and Aquatic Research Center.

    • Provides distribution maps and collection information (State and County).

  • Nonnative Invasive Insects and Diseases Decreasing Carbon Stored in U.S. Forests

    • Aug 13, 2019
    • USDA. FS. Northern Research Station.

    • Photosynthesis feeds trees and has a significant benefit for people, too, namely the removal of carbon from the atmosphere and into live tree biomass through a process called “sequestration.” But USDA Forest Service scientists and a colleague found that increased tree mortality from the impacts of nonnative insects and diseases results in the transfer of carbon stored in live trees into dead material, much of which will eventually return to the atmosphere by decomposition. This threatens the estimated 76 percent of carbon sequestration in North America that comes from forests.

  • Non-Native Invasive Plants of Arizona

    • Dec 2019
    • University of Arizona. Cooperative Extension.

    • This booklet is the 2019 revision of a similar booklet published in 2001 and the second edition.  This updated edition of the guides provide management suggestions for most listed species based on a synthesis of field trials and greenhouse experiments mostly conducted in the arid southwest.  The second edition included most of the invasive plant species that appeared in the 1st edition with several species added.  The updated booklet is not intended to provide a comprehensive list of all of Arizona’s invasive weeds, but rather, it illustrates a few invasive plants that have become, or have the potential to become, problematic in Arizona.
      Publication Number: AZ1482-2016

  • Nonnative Species - Beech Bark Disease

    • DOI. NPS. Pictured Rocks National Lakeshore (Michigan).

  • Nonnatives - Gambian Pouched Rat

    • Florida Fish and Wildlife Conservation Commission.

  • Nonnatives: Swamp Eel

    • Florida Fish and Wildlife Conservation Commission.

  • North American Beaver Invasion Occupies Forests and Steppes in Southern Chile and Argentina

    • Dec 16, 2015
    • Scientific American.

    • In 1946 the Argentine Navy imported 10 beaver couples from Canada and set them free in Isla Grande, the deep south of Tierra del Fuego, with the intention of "enriching" the native fauna and the local fur industry. The consequences of such initiative were disastrous: Protected from hunting for 35 years, and devoid of natural predators, the beavers grew over 5,000 times their initial population, caused irreversible changes in the forest ecosystem, and started advancing over the continent. Now, a study published in Chilean Natural History suggests that the demographic explosion of those beavers could be bigger than suspected because it can take years or even decades for local inhabitants to notice the rodents' presence and their impact on the surrounding ecosystems.

  • North American Hornet Screening Tool - Vespa mandarinia

    • USDAAPHISPPQCPHST. Identification Technology Program.

    • This tool is designed to help users differentiate between invasive hornets, specifically Asian giant hornet, and other common non-targets found in the U.S., including bees and wasps. Included are fact sheets and a filterable image gallery that can be used as a rudimentary key.

  • North American Hornet Screening Tool Now Available

    • Jun 21, 2021
    • USDA. APHIS. PPQ. CPHST. Identification Technology Program.

    • ITP is pleased to announce the release of North American Hornet Screening Tool. Hornets in the genus Vespa play a critical role as predators in their native habitats, but in North America these species may have a disastrous impact on agriculture by reducing populations of important pollinators such as the honey bee. Hornets also pose a serious health risk to humans because of their powerful sting. North American Hornet Screening Tool is designed for anyone who may encounter these species in the U.S., including the Asian giant hornet (AGH, V. mandarinia). 

      North American Hornet Screening Tool includes fact sheets and an interactive image gallery to support screening for Asian giant hornet and other potentially invasive hornet (Vespa) species. The interactive gallery can be used as a rudimentary key: by choosing one or more of the filters at the top, you can easily narrow down the images to only those that may match your specimen. A more in-depth version of this tool providing specialized information for identifiers on all exotic hornet (Vespa) species, will be released in 2022.

  • North Carolina Department of Agriculture and Consumer Services (NCDA&CS) Finds Spotted Lanternfly in Forsyth County: First Established Presence of the Pest in North Carolina

    • Jun 29, 2022
    • North Carolina State University. Cooperative Extension.

    • The North Carolina Department of Agriculture and Consumer Services has confirmed the first established presence of the invasive spotted lanternfly (Lycorma delicatula) in the state. Initial surveys indicate the known distribution of the pest is within a 5-mile radius in Forsyth County near Interstate 40 in Kernersville extending to the Guilford County line.

      Early detection and rapid response are critical in the control of spotted lanternfly and the Plant Industry Division has been preparing to provide the most effective response to slow the spread of this invasive pest in the state. If you see or suspect spotted lanternfly in North Carolina submit a picture through the Spotted Lanternfly Reporting Tool.

  • North Carolina Wildlife Commission Seeking Feral Swine Sightings

    • Oct 21, 2020
    • North Carolina Wildlife Resources Commission.

    • The N.C. Wildlife Resources Commission has unveiled a new online reporting tool for people to report any sightings of feral swine or their damage to the agency. Feral swine, also called wild boar and feral hogs, are an invasive species that cause significant damage to plant communities and wildlife habitat, prey on native wildlife, compete with native species for limited food and clean water resources and potentially spread diseases that pose substantial risk to livestock, wildlife, humans and pets. Commission biologists, along with other members of the N.C. Feral Swine Task Force, are seeking information from the public to better understand the distribution and abundance of feral swine across the state, and to estimate type and extent of damages they are causing, including damage to agricultural crops, timber, wildlife habitats, landscaping and others.

      Reported sightings will help members of the task force determine priority areas where they can focus management efforts. Education and outreach events, technical assistance staff, loaner traps, and other control measures will be focused in areas of greatest need. For more information on feral swine in North Carolina, visit the Commission’s feral swine web page.

  • Northeast Regional Invasive Species and Climate Change (RISCC) Publishes New Management Challenge on Climate Change, Biological Control Agents, and Target Hosts

    • Mar 6, 2024
    • University of Massachusetts Amherst. Northeast Climate Adaptation Science Center.

    • Biocontrol is an important management tool that utilizes one species (a biocontrol agent) to control another (a target host) and can be an effective approach for controlling populations of invasive species across broad spatial scales. Climate change, though, is complicating biocontrol, raising concerns that mismatches between how biocontrol agents and their hosts respond to climate change could alter the efficacy of current and future biocontrol programs. In response, a team of RISCC (Regional Invasive Species and Climate Change) Management Network and NE CASC (Climate Adaptation Science Center) researchers has published a new "Management Challenge" that details how climate change impacts the relationship between biocontrol agents and their target hosts and outlines management implications arising from this problem.

  • Northern Giant Hornet

    • Massachusetts Introduced Pests Outreach Project.

    • As of July 2022, the Northern giant hornet has not been found in Massachusetts.

  • Northern Giant Hornet

    • University of Maryland Extension.

  • Northern Giant Hornet (Vespa mandarina)

    • Invasive Species Centre (Ontario).

  • Northern Giant Hornet: A Potential Threat to Honeybee Colonies in Oregon

    • Sep 2022
    • Oregon State University. Extension Service.

  • Northern Snakehead

    • Maryland Department of Natural Resources. Fisheries Service.

  • Northern Snakehead

    • Virginia Department of Wildlife Resources.

  • Notice of Funding Opportunity: Implementation of the Quagga and Zebra Mussel Action Plan (QZAP) in the Western United States

    • Aug 18, 2020
    • California Department of Fish and Wildlife.

    • The Funding Opportunity for the U.S. Fish and Wildlife QZAP FY2020 has officially been posted. The total funding amount for projects is approximately $1,830,000.00, which is a significant increase from years past. This opportunity will be open for application through October 18, 2020.

  • Noxious Weed Information - Canada Thistle

    • Colorado Weed Management Association.