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Displaying 681 to 700 of 1172

  • Nonindigenous Aquatic Species Database: Point Map - Water Lettuce

    • DOI. USGS. Wetland and Aquatic Research Center.

    • Provides detailed collection information as well as animated map.

  • Nonindigenous Aquatic Species Database: Point Map - Water Spinach

    • DOI. USGS. Wetland and Aquatic Research Center.

    • Provides detailed collection information as well as animated map.

  • Nonindigenous Aquatic Species Database: Point Map - Zebra Mussel

    • DOI. USGS. Wetland and Aquatic Research Center.

    • Provides detailed collection information as well as animated map.

  • 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.

  • Nonnative Species - Beech Bark Disease

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

  • Northwest Climate Hub - Feral Swine in the Northwest

    • United States Department of Agriculture. USDA Climate Hubs.

    • Feral swine have recently invaded parts of the Northwest. They have been invading southwestern and central Oregon since 2004 and were first detected in Washington in 2016. Idaho has not seen significant numbers of feral swine, however migrating pigs may pose a threat. The population growth potential of feral swine is closely associated with food availability, which is becoming more abundant year-round due to warmer winter conditions that are linked to climate change. Projected increases in extreme events and average summer temperatures in the region are not expected to negatively impact the success of feral pigs. In response, timely population control measures are necessary to avoid damage to crops, forests, and rangelands.

  • Not Authorized Pending Pest Risk Analysis (NAPPRA)

    • USDA. Animal and Plant Health Inspection Service.

    • Plants for planting can carry a wide variety of pests that are more likely to become established in the U.S. because they are already on a suitable host. In some cases, the plants themselves are the pest. To ensure U.S. import regulations provide adequate protection against the risk posed by plants for planting, the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) established a regulated category called "Not Authorized Pending Pest Risk Analysis" (NAPPRA). NAPPRA allows APHIS to more fully protect U.S. agriculture from foreign pests while minimizing adverse economic and trade impacts. Under NAPPRA, plants for planting must undergo a pest risk analysis before APHIS will authorize the taxon for importation.

      Before NAPPRA, APHIS' plants for planting regulations (also known as Q37) categorized imported plants as either prohibited (not allowed) or restricted (allowed under certain conditions). The regulations did not require a pest risk analysis prior to the importation of a new taxonomic group of plants. This differed from APHIS' fruits and vegetables regulations (Q56) where the importation of regulated articles is prohibited until APHIS completes a pest risk analysis.

  • Noxious Weeds Program

    • USDA. APHIS. Plant Protection and Quarantine.

    • Includes species listed as a Federal Noxious Weed under the Plant Protection Act, which makes it illegal in the U.S. to import or transport between states without a permit.

  • Noxious Weeds Program Risk Assessments

    • USDA. Animal and Plant Health Inspection Service.

    • PPQ conducts weed risk assessments (WRA) as part of its process for safeguarding U.S. agriculture and natural resources from weeds and invasive plants. A weed risk assessment is a science-based evaluation of the potential of a plant species to establish, spread, and cause harm in the United States. PPQ may initiate an assessment for any number of reasons, including: evaluation of commodity import requests, detection of a new weed in the United States, and petitions for listing from stakeholders.

  • NRCS State Office Contacts

    • USDA. Natural Resources Conservation Service.

    • NRCS offers technical and financial assistance to help farmers, ranchers and forest managers.

  • NRCS Utah Invasive Species List [PDF, 105 KB]

    • Feb 2012
    • USDA. Natural Resources Conservation Service.

  • Nutria Eradication Project

    • DOI. Fish and Wildlife Service.

    • Provides overview of former project to protect and conserve communities of the Delmarva Peninsula (Chesapeake Bay region).

  • NWRC Research Areas: Invasive Species on Islands (Brown Treesnakes Research)

    • USDA. APHIS. National Wildlife Research Center.

    • Our scientists are developing strategies and methods to manage the brown treesnake and protect endangered species and other wildlife, improve public health, and protect power stations and other sensitive locations from intrusion.

  • Oak Wilt in the Northeastern and Midwestern States

    • 2022
    • USDA. FS. Eastern Region.

    • Oak wilt is complex, with a high degree of variability in distribution, severity, and associated management options. This publication provides a detailed overview of oak wilt and is intended to help natural resource managers in the Northeast and Midwest choose the most appropriate tools for a given situation. Using the Story Map format, information has been organized into selectable sections/tabs for easy navigation and exploration.

  • Ocean Facts - What is a Lionfish?

    • DOC. NOAA. National Ocean Service.

  • Of Bees and Blooms: A New Scorecard For Selecting Pollinator-Friendly Plants in Restoration

    • Jan/Feb 2023
    • USDA. FS. Rocky Mountain Research Station.
      Science You Can Use Bulletin, Issue 58.

    • Bees are declining in the U.S. and with them the pollination services on which people and wildlife depend. Several national forests have begun to include habitat restoration for bees in their forest plans. Justin Runyon, a Rocky Mountain Research Station research entomologist, and Montana State University scientists identified the most pollinator-friendly plants to include in seed mixes for use in restoration projects in the Northern Rockies.

      The researchers developed a scorecard that managers can use to select pollinator-friendly mixes based on local factors such as budget, habitat type, or plant availability.

  • Operational Activities - Nutria

    • USDA. APHIS. Wildlife Services.

  • Paperbark (Melaleuca quinquenervia) Ecological Risk Screening Summary

  • Partners for Fish and Wildlife Program - National and Regional Contacts

    • DOI. Fish and Wildlife Service.

    • The Partners Program provides technical and financial assistance to private landowners and Tribes who are willing to work with us and other partners on a voluntary basis to help meet the habitat needs of our Federal Trust Species.