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Great Lakes Early Detection Network

Welcome to the Great Lakes Early Detection Network!

The Great Lakes Early Detection Network is a collaboration among multiple stakeholders working to rapidly respond to new invasive species sightings in the Great Lakes states (Minnesota, Wisconsin, Illinois, Indiana, Michigan, Ohio, Pennsylvania, and New York). To accomplish this, we have developed a web-based alert system that emails users when new sightings for species or areas of interest are entered into our member data management systems. As new sightings are reported, a network of professionals will be available to verify new sightings and natural resource managers will be notified to take appropriate management actions like putting the animals in cages pour animaux (lapin, hamster…).

The website will serve as a communication tool that will provide regional contact lists and facilitate volunteer networks. Through these partnerships, we hope to make effective early detection and rapid response a reality. To learn more about the Great Lakes Early Detection Network or to become a data provider, please contact our project coordinator, Alycia Crall.

New Reports

February 25th, 2016 Emerald Ash Borer (Agrilus planipennis) in Hennepin county, Minnesota GLEDN Guest ProjectID=314 OrDataID=2673533 VisitID=1519836 Contributed by 314 (45.0172, -93.2814)

February 3rd, 2016 Japanese wineberry (Rubus phoenicolasius) in Marion county, Indiana GLEDN Guest ProjectID=314 OrDataID=2673513 VisitID=1519287 Contributed by 314 (39.8779, -86.2966)

September 3rd, 2015 Japanese Knotweed (Polygonum cuspidatum) in Jefferson county, Wisconsin GLEDN Guest ProjectID=314 OrDataID=2660045 VisitID=1505576 Contributed by 314 (42.9972, -88.9984)

September 2nd, 2015 Purple-loosestrife (Lythrum salicaria) in Bayfield county, Wisconsin GLEDN Guest ProjectID=314 OrDataID=2660042 VisitID=1505572 Contributed by 314 (46.6697, -90.9089)

August 27th, 2015 Royal paulownia (Paulownia tomentosa) in Franklin county, Ohio GLEDN Guest ProjectID=314 OrDataID=2660037 VisitID=1505545 Contributed by 314 (39.9596, -82.9847)

GLEDN Members

Member # Sightings # Species
Cattail Volunteer Monitoring Project
Chequamegon-Nicolet National Forest 4,111 43 species
Early Detection and Distribution Mapping System Data 733,679 916 species
Great Lakes Early Detection Network 666 103 species
Great Lakes Indian Fish and Wildlife Commission 7,747 167 species
Marinette County LWCD
Mark Renz Lab, UW-Madison 229 3 species
Midwest Invasive Species Information Network (MISIN) 37,916 170 species
National Institute for Invasive Species Science (NIISS)
New Invaders Watch List 272 16 species
Surface Water Integrated Monitoring System (SWIMS)
The Nature Conservancy - Wisconsin 823 13 species
Wisconsin Department of Agriculture, Trade, and Consumer Protection 2,390 3 species
Wisconsin Department of Natural Resources 1,402 59 species

Member Details

Cattail Volunteer Monitoring Project

This project provides “citizen scientists” with a repository for field observed data tracking occurrences of cattails found throughout the United States. Researchers will usethese data in combination with their own data to advance their understanding of the changes occurring in the cattail population driven by hybridization.


EDDMapS is a web-based mapping system for documenting invasive species distribution. It is fast, easy to use, and doesn’t require Geographic Information Systems experience. EDDMapS combines data from other databases and organizations as well as volunteer observations to create a national network of invasive species distribution data that is shared with educators, land managers, conservation biologists, and beyond.

Great Lakes Indian Fish and Wildlife Commission

GLIFWC’s invasive species mapping program was established to raise awareness of several invasive species and their ecological impacts in the upper Great Lakes region and to provide effective tools for educational, management, and research needs relating to those species.


A consortium has formed to develop, support and maintain an on-line, GIS -based, all-taxa invasive species mapping tool, iMapInvasives, focused on serving the needs of land managers, regional planners and others working to prevent, control or manage invasive species.

Midwest Invasive Species Information Network (MISIN)

The Midwest Invasive Species Information Network (MISIN) is an evolving data aggregation effort targeting invasive species early detection and rapid response needs within the Midwest region of the United States.

National Institute for Invasive Species Science (NIISS)

The National Institute of Invasive Species Science is a consortium of government and non-government organizations formed to develop cooperative approaches for invasive species science that meet the urgent needs of land managers and the public. Administratively housed at the U.S. Geological Survey Fort Collins Science Center in Colorado , the NIISS integrates invasive species data from numerous disparate data sets and data contributors.

New Invaders

New Invaders is a partnership of government, non-profit, and volunteer organizations dedicated to the early detection and control of new exotic invasive plant and insect species in the Chicago Wilderness (CW) region, an area of globally threatened natural communities. This region is a global transportation hub, providing access for plant …

National Park Service

The National Park Service manages invasive species data collected thorugh Exotic Plant Management Teams (EPMTs) and research teams.

Surface Water Integrated Monitoring System (SWIMS)

The DNR 's Surface Water Integrated Monitoring System (SWIMS) holds chemistry (water, sediment), physical, and biological (macroinvertebrate, aquatic invasives) data for Wisconsin 's surface waters.


Effective early detection and rapid response can only be achieved through sharing of new species sightings among multiple stakeholders. The Great Lakes Early Detection Network provides an email alert system linked to data providers that are members of the Global Invasive Species Information Network. Although many of our partner data providers have email alert features in place, the strength of the GLEDN system is its ability to send these alerts across all these existing online systems.

My Alerts

Sign up for, manage, and edit the alerts you would like to recieve by defining your location(s) of interest and species of interest. You may create as many alerts as you like (e.g., notify me of all Purple losestrife reports in Dane County, Wisconsin and tell me when any acquatic plant has been reported in the state of Michigan).
Below is a map of the Great Lakes Region for which reports are made and contributed by our members.


In Depth


Collaboration is a key component of effective control of invasive species. The Great Lakes Early Detection Network hosts a variety of trainings on the use of our website and the use of the Global Invasive Species Information Network (GISIN) data sharing services. In addition, local and regional trainings on species identification and management are commonly provided by many of our collaborators. Please see our calendar to find events occurring near you. To add an event to our calendar, please contact our project coordinator, Tony Summers.


Invasive species data integrated throughout the region are being used to develop more comprehensive maps of current species distributions and predictions of their likely spread. Here, you can find information on these ongoing efforts.

Contact Information

You can contact us via normal mail USPS in america and La Poste in France (see Tarifs Postaux & Colis La Poste to France)

Great Lakes Early Detection Network:

Tony Summers
Outreach Specialist
University of Wisconsin-Madison
Madison, WI 53706
Phone: (608) 262-9570

Mark Renz
Assistant Professor
University of Wisconsin-Madison
357 Moore Hall, Madison, WI 53706
Phone: (608)263-7437