Resource Search

Treesearch is an online system for sharing free, full text publications by Research and Development scientists in the USDA Forest Service. Included in Treesearch are scholarly works authored by the agency’s scientists and published by journals, in conference proceedings, or in books. Treesearch also offers scholarly works published by the agency which may or may not have been authored by agency researchers.

Once common across eastern North America, the American elm is deeply ingrained in our nation's history. However, a large portion of the tree population was affected by Dutch Elm Disease beginning in the 1930s. Today, short-lived elms can still be found in forests, but because they tend to be much smaller, they no longer play such an important ecological role. A multifaceted collaborative effort is underway to restore the stately and once dominant American elm to persist on the landscape of the nation's forests.

From the forefront of forest research, the Northern Research Station invites you inside the largest forest research organization in the world — the USDA's Forest Service. In each podcast episode, you’ll hear stories, interviews, and special in-depth anthologies of the science that's studying, questioning, and solving some of today's most compelling forest issues.

Non-native invasive insects and pathogens are causing significant ecological damage to forests worldwide.  The first season explores biological invasions — and their repercussions — in the Midwest and the Northeast. The second season examines tree breeding and selection to promote resistance to invasive insects and diseases.

ForWarn is a satellite-based forest disturbance monitoring system for the conterminous United States. It delivers new forest change products every eight days and provides tools for attributing abnormalities to insects, disease, wildfire, storms, human development or unusual weather. Archived data provide disturbance tracking across all lands since 2000.

See also: Explore Search: White-Nose Syndrome for more FAQs

In parts of the South, there are stories about an invasive floating weed, which forms such a dense mass that it enables small animals to walk across water. This weed, called giant salvinia, is an exotic fern from South America that invades ponds, lakes, and other waterways in the United States. It damages aquatic ecosystems by outgrowing and replacing native plants that provide food and habitat for native animals and waterfowl.

Agricultural Research Service (ARS) scientists are testing a naturally occurring fungus (Myrothecium spp.) against giant salvinia to help control it. Initial tests have found that the fungus stops this problematic weed from growing and even can kill it.

Invasive species are one of the most dire threats to the endemic flora and fauna of the Galápagos Islands. One of the most aggressive species is the Giant African Snail (Lissachatina fulica), which was reported for the first time in Galápagos in 2010 and is a highly invasive species that appears on the International Union for Conservation of Nature’s (IUCN) list of the 100 most harmful invasive species in the world. Galápagos Conservancy President Dr. Paul Salaman recently signed a new agreement with the Galápagos Biosecurity & Quarantine Regulation & Control Agency (ABG) to strengthen control actions and prevent the spread of the African snail on the islands.

MIPN synthesized recent research on garlic mustard and developed recommendations to help managers navigate sometimes-conflicting information about whether and how to prioritize management of this species. This 12 page guide includes a decision-support tree and a box discussion of best practices for volunteer pull events.

A new GBIF task group will address the urgent need for improved access to better data and information on invasive alien species in response to the landmark Invasive Alien Species Assessment approved by the the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) this month.
See related resource:  Media Release: IPBES (Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services) Invasive Alien Species Assessment

Anyone can help with nonnative species management. There are a variety of ways to get involved, and not all require slogging through swamps or handling wild animals. We want to encourage people to find ways they can participate. Every action helps protect native species!

See also: Biocontrol Factsheets for more information on biocontrol agents

Glacier National Park waters are generally open for boating from mid-May through October. All watercraft require an NPS inspection and permit before launching. Prior cleaning, draining, and drying of all watercraft, both externally and internally, will reduce inspection time significantly.

Access and compare risk assessment literature, methods and results from collaborators.

Quagga mussel larvae, or veligers, were first confirmed in Lake Powell in late 2012 after routine water monitoring tests discovered mussel DNA in water samples taken from the vicinity of Antelope Point and the Glen Canyon Dam. As of early 2016, thousands of adult quagga mussels have been found in Lake Powell, attached to canyon walls, the Glen Canyon Dam, boats, and other underwater structures, especially in the southern portions of the lake. It is crucial to keep the mussels from moving from Lake Powell to other lakes and rivers. Utah and Arizona state laws require you to clean, drain, and dry your boat when leaving Lake Powell using self-decontamination procedures.