Maine Invasives Mapping and Other Data

The following links represent a comprehensive compilation of map and other database resources publicly available for invasive and pest species in Maine.

Multi-taxa (with particular strength in terrestrial and wetland plant species)

iMapInvasives Maine
Provider: Maine Natural Areas Program.
Map and database that shows where invasive species are on Maine’s landscape.
To view specific locations or use iMap to record treatments and monitor infestations, request a free user account.
More information about iMap Maine.


Global Invasive Species Database
Provider: IUCN-World Conservation Union
Lists species recorded in the GISD from Maine. Includes photos, distribution, management/impacts, references, and contacts.

All-taxa Forest Pests

Eastern Forest Environmental Threat Center
Provider: US Forest Service
From insects to diseases this all-taxa resource has photos, species descriptions, and distribution info.

Multi-taxa (plant, marine, freshwater aquatic, native species)

Vital Signs
Provider: Gulf of Maine Research Institute
Educational effort engaging school age participants and other contributors who make observations to be confirmed by experts. Focuses on many invasive species as well as select native species. Citizen science at its best.

Multi-taxa (agricultural pests)

Pest Tracker
Provider: Purdue University / US Dept. of Agriculture
Photos and Cooperative Agricultural Pest Survey (CAPS) results focusing on agricultural pest species.

Plants (terrestrial)

Invasive Plants Atlas of New England (IPANE)
Provider: University of Connecticut
Includes an excellent compendium of records compiled from botanical collections, surveys, and trained volunteers. County-level distribution is available for some species!

Provider: University of Georgia — Center for Invasive Species and Ecosystem Health
Excellent resource containing a multitude of spatial data sets of invasive plant species including the IPANE dataset described above.

Nonindigineous Aquatics

Nonindigenous Aquatics
Provider: US Geological Survey
USGS repository for aquatic species information; includes known distribution maps and factsheets.