Dataset Overview

This dataset encompasses spatial data collected aerially and in the field on defoliation in the state of Maine prior to 1997. This includes gypsy moth (1990-1993), hemlock looper (1990-1993), browntail moth (1994-1997) and spruce budworm (compiled by the Maine Forest Service from maps, reports and/or the 1997 David Weed report for various years back to 1918). This dataset is archived as delivered by the Maine Forest Service in October of 2016.

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The purpose of this project is to provide information on short- and long-term changes in forest health and disturbance to researchers, managers, policymakers, and the general public.

Data Collection Status

Data collection for this dataset has been completed

Start date


End date


Data Availability

Available for download

Data License

CC0 - Public domain license logo

Preferred Citation

Maine Forest Service (2016). Historical Maine Forest Service Aerial Detection and Disturbance Data, 1918 to 1997. Forest Ecosystem Monitoring Cooperative. Available online at:

Update Frequency

Not planned

Maintenance Plan

Not provided


No links available for this dataset

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