NPP Study: Annual ground-based photographs of 15 NPP sites beginning 1996

Beginning in 1996, annual photos are taken from each of the 4 corners of each of the 15 70-meter x 70-meter NPP sites between August and November depending on other research activity constraints. The plots were established in early months of 1989. From 1996-2002 photos were taken using 35mm color slide film. Beginning in 2003, digital photos were taken in JPG format. Occasionally, supplemental photos may be taken at the same time that provide additional habitat information at the landscape, patch, or plant species level