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Describes research, methodology, and results from the monitoring of current invasive plant species problems. See Manager's Tool Kit - Monitoring for general resources and other species.

Council or Task Force

California Invasive Plant Council.
CalWeedMapper is a new Web site for mapping invasive plant spread and planning regional management. Users generate a report for their region that synthesizes information into three types of strategic opportunities: surveillance, eradication and containment. Land managers can use these reports to prioritize their invasive plant management, to coordinate at the landscape level (county or larger) and to justify funding requests. For some species, CalWeedMapper also provides maps of suitable range that show where a plant might be able to grow in the future. The system was developed by the California Invasive Plant Council and is designed to stay current by allowing users to edit data.


Survey of Invasive Plants Impacting National Parks in the United States (Jan 5, 2009; PDF | 149 KB)
University of Georgia. Center for Invasive Species and Ecosystem Health.
Prepared by Jil M. Swearingen, National Park Service, Center for Urban Ecology. See also: Invasive Plant Atlas National Parks

Tamarix Cooperative Mapping Initiative (T-Map)
DOI. USGS. National Instititue of Invasive Species Science.

Federal Government

Forest Inventory and Analysis - Invasive Species Maps
USDA. FS. Northern Research Station.
Maps are organized for 43 invasive plant species into five categories: trees, shrubs, vines, herbs, and grasses. Select the desired species to view the distribution information for northern states.
See also: A Guide to Nonnative Invasive Plants Inventoried in the North by Forest Inventory and Analysis (Rev Oct 2017; Sep 2009).

Weed Manager's Guide to Remote Sensing and GIS
USDA. FS. Remote Sensing Applications Center.

Weed Watchers: A Volunteer-Based Invasive Plant Early Detection Program
DOI. NPS. Inventory & Monitoring Program. San Francisco Bay Area Network.

Measuring and Monitoring Plant Populations (PDF | 5.13 MB)
DOI. Bureau of Land Management.


Inventory and Survey Methods for Nonindigenous Plant Species (2006; PDF | 3.96 MB)
Montana State University. Center for Invasive Species Management.
See also: Surveying and Monitoring for more resources

Mapping Montana's Noxious Weeds (2001)
Montana State University Service.

Monitoring Your Wetland - Invasive Plants (PDF | 2.99 MB)
University of Wisconsin - Extension.
See also: Stormwater Runoff Management - Wetland Monitoring Series for more resources


North American Invasive Species Management Mapping Standards
North American Invasive Species Management Association.
Endorsed by: Federal Interagency Committee for the Management of Noxious and Exotic Weeds, approved May 7, 2002.

New York Metropolitan Flora Project (NYMF)
Brooklyn Botanic Garden.
Dozens of flora native to the New York region face extinction, a result of urban development and the encroachment of invasive plants from foreign lands, scientists from the Brooklyn Botanic Garden report. Hoping to revive plants facing extinction, scientists recently completed a 20-year project mapping species in every county within a 50-mile radius of New York, providing detailed information on the health of more than 15,000 native and nonnative species. See the for more information.
See also: Press Release: Some Plants Native to NYC Area Have Become Locally Extinct As New Flora Has Moved In (Apr 5, 2010)

Nebraska Weed Control Association Online Weed Management System
Nebraska Weed Control Association.
A state-wide mapping system for all 93 counties in Nebraska. This mapping system creates a state-wide database of invasive plants information and maps them using ArcIMS. Each county weed control authority updates the information directly on the website from current inspections. Note, this may be the first state-wide mapping program of this type.

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Last Modified: Sep 22, 2018
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