The fire effects paired plot project began in 1982 under the direction of Gary Ahlstrand - NPS Alaska Regional Research Ecologist. The purpose of the project was to assess vegetation change and succession as a result of fire. Fire teams established paired vegetation plots in burned and representative unburned habitat adjacent to the burned area. Burned sites of varying ages were identified and selected for study from historic fire reports, 1:60,000 color infrared aerial photography and aerial reconnaissance. Some plots were established in front of active wildfires and control plot pairs were not established. Plot data that was collected included: photographic slides of plot, tree density by size class and species on 15-m x 30-m quadrats, vegetation cover class for 30 Daubenmire frames (20 x 50 cm), tree cores/cookies, fuels and soils data (on some plots), and general plot location descriptions. Between 1982 and 1988, approximately 535 plots were installed across 9 different parks in Alaska.