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Home / Invasive Species - What's New on NISIC's Site

Invasive Species - What's New on NISIC's Site

See What's New on the NISIC's Web site by using our RSS feed (learn about RSS). Contains items of interest that have been added to our site, in order of most recent post date.

See related information: Invasive Species Resources - What's New
Resources can be filtered by Subject, Resource Type, Location, or Source. If you wish to search for species-related resources and use refinements, enter the species name first before selecting the terms.


DNA From Thin Air: Could Invasive Species be Monitored Using Airborne DNA? (Jan 21, 2022)
CAB International. Invasives Blog.

Invasive species are notoriously challenging to track due to their ability to rapidly spread from one habitat to another, whilst their impacts on endangered species can be even more difficult to detect. Two new studies published in the journal Current Biology have now shown that it is possible to accurately identify a variety of animal species over distances of hundreds of metres by sampling environmental DNA (eDNA), or DNA traces shed by animals into the surrounding air.

Post Date: Jan 21, 2022
Governor of Washington Issues Green Crab Infestation Proclamation (Jan 19, 2022)
Office of the Governor (Washington).

Washington Governor Jay Inslee has issued an emergency order (PDF| 174 KB) to address the exponential increase in the European green crab population within the Lummi Nation’s Sea Pond and outer coast areas. The European green crab is a globally-damaging invasive species that, if they become permanently established, will particularly harm endangered species, impact resources that are part of the cultural identity of the tribes and native peoples, and affect small businesses.

Post Date: Jan 20, 2022
USDA Confirms Highly Pathogenic Avian Influenza in a Wild Bird in South Carolina (Jan 14, 2022)
USDA. Animal and Plant Health Inspection Service.

The United States Department of Agriculture's (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed highly pathogenic Eurasian H5 avian influenza (HPAI) in a wild American wigeon in Colleton County, South Carolina. Eurasian H5 HPAI has not been detected in a wild bird in the United States since 2016. There was a case of HPAI (H7N3) in one commercial meat turkey flock in South Carolina in 2020 due to a North American lineage virus. The Centers for Disease Control and Prevention considers the risk to the general public from HPAI H5 infections to be low. No human infections with Eurasian H5 viruses have occurred in the United States. As a reminder, the proper handling and cooking of poultry and eggs to an internal temperature of 165˚F kills bacteria and viruses, including HPAI.

Anyone involved with poultry production from the small backyard to the large commercial producer should review their biosecurity activities to assure the health of their birds. APHIS has materials about biosecurity, including videos, checklists, and a toolkit available at the Defend the Flock Resource Center.

Post Date: Jan 15, 2022
Dreaded Didymo - or 'Rock Snot' - Found in Upper Manistee River, Michigan (Dec 6, 2021)
Michigan Department of Natural Resources.

The Michigan departments of Environment, Great Lakes, and Energy and Natural Resources confirmed a report of didymo, a nuisance freshwater alga, in a stretch of the Upper Manistee River in Kalkaska County. Also known as rock snot despite its coarse, woolly texture, didymo can grow into thick mats that cover the river bottom. The Manistee River finding marks the first detection of didymo blooms in the Lower Peninsula. In 2015, extensive mats of didymo were found on the Michigan side of the St. Marys River near Sault Ste. Marie in the Upper Peninsula.

If you observe didymo in the water, either as small, cotton ball-sized patches or thick blankets with rope-like strings that flow in currents, take photos, note the location and report it by using the Midwest Invasive Species Information Network, available online at MISIN.MSU.edu or as a downloadable smartphone app. The MISIN smartphone app will take a GPS location point if a report is made at the site; it also will allow you to upload photos with a report. Find more information on didymo and how to identify it at Michigan.gov/Invasives.

Post Date: Jan 03, 2022
PATHMAP: A New Interactive Tool for Tracking Tree Fruit Diseases, Disorders, and Insect Pests (Dec 16, 2021)
USDA. Agricultural Research Service.

ARS researchers created a new tool, called Pathogen and Tree Fruit Health Map (PATHMAP), which will connect growers in different states and allow them to share important data regarding tree fruit diseases, disorders, and insect pests. This online interactive tool will enable growers to modify and adjust their pathogen and pest control programs based on real-time data, provide quick access to time-sensitive data, give them access to experts in the field, and provide access to previous years observations and track current diseases, disorders and pests.

Post Date: Dec 29, 2021
Watercraft - Call Before You Haul
Pacific States Marine Fisheries Commission.

In December 2021, the Pacific States Marine Fisheries Commission (PSMFC) has initiated a program to prevent delays during the transport of watercraft destined for the states of Washington, Oregon, Idaho, and Montana. The program, Call Before You Haul, provides a toll-free number boat transporters can call prior to transporting watercraft from outside the Pacific Northwest to one of the aforementioned states. The program is currently being piloted in 10 states, and is intended to be expanded to all states in 2022. By calling the toll-free number, 1-844-311-4873, prior to hauling, and providing some basic information about the watercraft being transported, the destination state representative will reach out to boat transporters and provide them with information to facilitate and expedite inspection of the watercraft, and if needed, decontamination.

Scroll to section for "Commercial Boat Haulers - Call Before You Haul" for more program information.

Post Date: Dec 28, 2021
Feral Hog Invasions Leave Coastal Marshes More Susceptible to Climate Change (Nov 16, 2021)
Duke University. Nicholas School of the Environment.

Coastal marshes that have been invaded by feral hogs recover from disturbances up to three times slower than non-invaded marshes and are far less resilient to sea-level rise, extreme drought and other impacts of climate change, a new study led by scientists at Duke University and the University of Massachusetts Boston (UMB) finds. "Under normal circumstances, marshes can handle and recover from drought or sea level rise, given time, but there is no safety net in place for hog invasions," said Brian Silliman, Rachel Carson Distinguished Professor of Marine Conservation Biology at Duke, who co-authored the study.

Post Date: Dec 27, 2021
Understanding the Science Behind Pigweed’s Amazing Adaptation (Dec 20, 2021)
USDA. ARS. Tellus.

Pigweed is a major challenge to our farmers and growers. It is extremely resilient and resistant to many herbicides, posing a significant threat to the agriculture industry. ARS scientists in Stoneville MS, along with collaborators from Clemson University, are researching the pigweed itself to find ways to mitigate this highly adaptable weed.

Post Date: Dec 27, 2021
New Rules for Ontario: New Invasive Species and Watercraft as a Carrier of Invasive Species (Nov 2, 2021)
Ontario Ministry of Northern Development, Mines, Natural Resources and Forestry (Canada).

Ontario is taking action to prevent the establishment and spread of invasive species, helping to protect the province's natural environment and socio-economic wellbeing. The government is adding 13 new invasive species to be regulated under the Invasive Species Act. The government is also regulating watercraft as a carrier of invasive species under the act. These new requirements will take effect on January 1, 2022.

As of January 1, 2022, boaters will be required to remove drain plugs and take reasonable precautions to remove all aquatic plants, animals and algae from their boats immediately upon removing the watercraft from a waterbody. In addition, boaters will also be required to ensure their watercraft is free of all aquatic plants, animals, and algae before arriving at a boat launch or launching their boat in any Ontario waterbody. These rules are based on the Clean, Drain, Dry practices which have been promoted through long term education and outreach efforts in Ontario and across North America and are based on experience from rules and regulations set by other jurisdictions.

Post Date: Dec 24, 2021
Governors Call on Congress to Provide Full Federal Funding for the Brandon Road Lock and Dam Project (Dec 10, 2021)
Conference of Great Lakes and St. Lawrence Governors and Premiers.

In a letter (PDF | 396 KB) to the Chairs and Ranking Members of the U.S. Senate Committee on Environment and Public Works and the U.S. House Committee on Transportation and Infrastructure, the Governors of the eight Great Lakes States have called on the U.S. Congress to provide full federal funding in the 2022 Water Resources Reform and Development Act for the remaining design, construction, operation, and maintenance costs of the Brandon Road Lock and Dam project. The project is intended to prevent invasive carp from migrating up the Mississippi River and entering and colonizing in the Great Lakes.

Post Date: Dec 21, 2021