The Long Island Invasive Species Management Area
Welcome to LIISMA
The Long Island Invasive Species Management Area (including Staten Island)
In The News
The Long Island Natural History Conference is This Week (2 Dec 2013)
The conference takes place on Friday, December 6th at Brookhaven National Lab and LIISMA will have a table display about our work on Long Island. CLICK HERE for more info on the conference and to register.
Protecting the Food Web: Watch This New Video to See Why We Work on Invasive Species (5 Nov 2013)
Doug Tallamy speaks to the importance of protecting our food webs, and the species that depend on them, from invasive species monocultures.
CLICK HERE to see the 19 minute talk.
Asiatic Sand Sedge Found on Staten Island (31 Oct 2013)
Like something out of a Halloween horror story, Carex kobomugi was found in the Great Kills and Miller Field areas of Gateway National Recreation Area on Staten Island this month. These are the closest infestations in New York to the large infestations at Sandy Hook in New Jersey. This week, volunteers at Gateway removed over 100 plants on the beach and will continue to monitor and dig up new plants in an effort to eradicate it before it spreads to other beaches of New York and greatly reduces beach habitat for people and rare species alike.
New State Invasive Species Regulations Released (25 Oct 2013)
Read about the regulations and the how they compare with Nassau and Suffolk County regulations. CLICK HERE
The Governor Signs Eurasian Wild Boar Legislation (21 Oct 2013)
For a look at the language in the law CLICK HERE. Fortunately there are none in LIISMA. Let's keep it that way!
Keep a Watch Out for Waterwheel, Aldrovanda vesciculosa, in Local Ponds (2 Oct 2013)
This globally rare aquatic carnivorous plant has been introduced intentionally and unintentionally into water bodies in Virginia, New Jersey, and Orange County, New York. It may become established in LIISMA lakes and ponds through transport by birds and we would like to know if you find it when you are boating or wading around in the shallows near the shore where it grows. It looks like a bladderwort but has whorled leaves with insect traps on the end. It often occurs in the same habitat as the floating bladderworts. The following websites will give you more information and photos. Contact firstname.lastname@example.org if you see it.
Lean to Identify the Male and Female Plants of Japanese Knotweed (11 Sep 2013)
Take a look at the Blog Post to see the differences between the sexes of Japanese knotweed, Fallopia japonica. When you are out and about see if you can recognize them in the field. Participants in iMap can map the male plants to help us find out the ratio of male to female and if they are helping to produce viable seed. It was thought that male plants were rare in New York but they seem to be fairly common when you look for them.
Asiatic Sand Sedge Surveyed at Breezy Point (6 Sep 2013)
A crew of four people from LIISMA, Gateway National Recreation Area and the NYC Parks Native Plant Garden spent the morning surveying for Carex kobomugi on two of the beaches at Breezy Point in Queens. On West Beach 167 plants were found and removed and on the Bay Side 37 additional plants were removed. More surveys willl be done this fall to see how widespread it is at Gateway beaches. In the photo below notice the arching leaves (they are serrate on the edges) and the bright white base of the plant with roots and a rhizome coming out the bottom.
Asiatic Sand Sedge Found on Fire Island (13 Aug 2013)
A new and small infestation of Asiatic sand sedge (Carex kobomugi) was found on the beach at the Fire Island villages this week. This follows the discovery of the plant in the Rockaways where three large patches were surveyed last week. This emphasizes the need to be vigilant on all Long Island and Staten Island beaches for the occurrence of this dune plant that has the potential to change the ecology of many of our beaches and negatively affect recreation opportunities. For more information go to our species alert page.
New Infestation of Parrot's Feather Found in Oyster Bay (2 Aug 2013)
The volunteers and staff for the National Wildlife Refuge System found Parrot's Feather, Myriophyllum aquaticum, in Mill Pond in Oyster Bay while they were removing water chestnut. It may have spread here from a nearby infestation in Shu Swamp that was discovered in the early 2000s.
Mile a Minute Weevils Spreading to New Areas
Derek Rogers of The Nature Conservancy reported that they have seen many weevils attacking MAM at their Uplands Preserve in Cold Spring Harbor. They had not introduced them here but they speculate that they have spread from an introduction at nearby Caumsett State Park. Weevils have also been detected at Nissequogue River State Park further east.
Check Your Pool Filter for Asian Longhorned Beetle!
Help protect NY's forests by participating in the DEC pool filter survey. LIISMA has the most pools of any region in New York and you can help us monitor the spread of this destructive beetle. CLICK HERE for more information on how to participate.
Kudzu Bug Makes Rapid Progress Toward New York
The exotic kudzu bug, Megacopta cribraria, was first found in Georgia in 2009 and is now found as far north as Maryland and Delaware. This stink bug eats kudzu but also eats soybean and possibly native legumes like hog peanut. It also gathers in large numbers on the sides of houses. We will monitor the kudzu infestations we have in New York to see if or when it arrives. We are in the process of surveying and updating all of our kudzu locations in New York this summer.
More information about the bug can be found by CLICKING HERE
Oriental False Hawksbeard May Have Come and Gone
This invasive herbaceous plant, Youngia japonica, was discovered last year at Alley Pond Park in Queens, the first time it was seen in New York State. When the location was resurved this year the plants were completely smothered by debris from the tidal surge of Hurricane Sandy. We hope it is gone for now but if you would like to look for it, there is more infomation HERE. Look for a hawkweed-like plant with many small yellow heads with dark anthers and lyre-shaped basal leaves.
Caper Spurge (Euphorbia lathyris) Almost Eradicated on Long Island
There were two known locations for this invasive plant on Long Island but Mike Feder from NYC reports the occurrence in Forest Park in Queens has been eradicated by restoration work there (one remaining plant was pulled this summer). One small population remains at Connetquot State Park and control efforts are ongoing. One other population was known as late as the 1980s at the Kalbfleisch Research Station in the Town of Huntington but the station and the plants were replaced by a housing development. See photos of the plant HERE.
Alligators found in Long Island Rivers
At least four alligators have been taken out of Long Island rivers this summer.
Owning alligators is illegal but people sometimes buy baby gators then release them when they get older. The reptiles cannot survive Long Island winters.
Anyone who spots an alligator on Long Island is urged to call 631-444-0250.
Giant Hogweed Control Work Completed on Long Island for 2013
All Giant Hogweed infestations on Long Island were treated the first week of June. Two large infestations remain and will take at least three more years to eradicate as the seed bank becomes exhausted. We expect this plant to be completely eradicated in 5-10 years.
Giant hogweed, an invasive plant that can cause painful burns may still be hiding out in areas we are not familiar with. Help us find new sites. Please use the NYSDEC Giant Hogweed Hotline for all inquiries and reports: email@example.com or 845-256-3111. The hotline is a place for people to report new sites, get help identifying suspect giant hogweed plants, ask questions about the plant and how to control it, and connect with the statewide control project. From mid-June through mid-July DEC gets hundreds of inquiries and it may take us a week or two to respond at that time.
Another resource is the NYSDEC giant hogweed web page http://www.dec.ny.gov/animals/39809.html which provides information about the plant, how to identify it, how to control it, a map of NY state sites, NYSDEC's control project, and more.
Kudzu Surveys Taking Place
Field surveys are taking place this summer to check historical records for kudzu that date back to 1972. Surveys during June confirmed twelve sites on Long Island and found that five sites in Manhattan and on Long Island were no longer present. Recent information from other scientists show that kudzu may be a plant that is preferred by lone star ticks for protection. We hope to control kudzu populations before they reach a critical mass and start to become a dominant feature of the landscape. If you see an infestation of kudzu on Long Island or Staten Island email the location and photographs of the plant to firstname.lastname@example.org.
Asiatic Sand Sedge Detected on Long Island for the First Time
An infestation of Asiatic Sand Sedge (Carex kobomugi) was detected in the Rockaways this spring. This is the first time we have documentation of its survival on the dunes in New York. This pernicious invasive sedge is creating bad problems on the dunes in New Jersey and could spread to other dunes in New York if it is not eradicated here first. Extensive surveys will take place in early August to determine the extent of the infestation after the rare plovers and terns have finished their reproductive activities.
Hardy Kiwi (Acinidia arguta) to be Studied This Summer
Hardy kiwi is acting like Asiatic bittersweet in some areas of the Northeast but seems well behaved in others. Scientists Iago Hale from the University of New Hampshire and Danilo Fernando from SUNY ESF will be studying the genetics and reproductive biology of the plants to find out what is causing the invasive tendencies of some populations. Long Island has two small infestations of this plant but they don't seem to be spreading to other areas.
New Species Alert Page!
Go to our species alert page to see a list of early detection species with informative web links.
Keep your eye out for these species so they don't become established in LIISMA!
New Long Island Goat Grazing Study 2005-06
CLICK HERE to go to the resources page to read about the study.
New Help volunteer to protect the resources of Long Island's National Wildlife Refuges by controlling invasives
CLICK HERE to go to the volunteer page for more infomation.