methods to counting blueberries

To measure the abundance of Vaccinium vacillans, a common and widespread shrub found in New England deciduous forests, I counted the number of individuals in eleven 4x4 meter plots that were dispersed randomly at three different sites. The sites were Mt. Norwottuck, Amherst, Massachusetts (42o 18'N, elevation 400 m), Plum Creek, Amherst, Massachusetts (42o 19'N, elevation 60 m), and Deer Brook, Swanton, Vermont (44o 06'N, elevation 50 m). Each plot was chosen at random. They were measured using a metric tape measure. Compass direction was used to ensure the 4x4 meter plots were measured accurately and the edges of the plots were not askew. The individuals were counted and recorded for each plot. The recorded data was then used to create Figure 1 and table 1.