. The Canadian field-naturalist. Natural history; Sciences naturelles. 238 The Canadian Field-Naturalist Vol. 119. Figure 1. Airphotos showing a portion of the heathland on the west side of Auburn (approx. ° N, - ° W) in 1930, 1970 and 2002. The stands of Pinus sylvestris where ground flora was evaluated are delineated with a black line on the 2002 photo. In 1930 heathland existed where these stands now occur. The Scots Pine stands were just starting to develop in 1970. adjacent open heathland. All sites sampled were evi- dently Corema-dominated heathland in 1930 (Figure 1). Site
. The Canadian field-naturalist. Natural history; Sciences naturelles. 238 The Canadian Field-Naturalist Vol. 119. Figure 1. Airphotos showing a portion of the heathland on the west side of Auburn (approx. ° N, - ° W) in 1930, 1970 and 2002. The stands of Pinus sylvestris where ground flora was evaluated are delineated with a black line on the 2002 photo. In 1930 heathland existed where these stands now occur. The Scots Pine stands were just starting to develop in 1970. adjacent open heathland. All sites sampled were evi- dently Corema-dominated heathland in 1930 (Figure 1). Site 1, an open heathland approx. 90% open in aerial view with scattered White (Pinus strobus L.), Red, and Scots pine and site 5, the adjacent Scots Pine stand was located at °N, °W. Site 2, the other open heathland, also approx. 90% open, and site 6, the adjacent Scots Pine stand was located at °N, °W. Site 3, an open heathland, 60% open in aerial view, with Red Pine 50 years old was located at °N, °W. Site 4, the semi-open 60-70 year-old Red Pine stand, approximately 20% open in aerial view was located at approximately °N, °W. At each site the habitat was delineated and within it a transect was selected at random using a compass line derived from random numbers. Presence and cover was recorded for each species in each of 20 one m2 quadrats at 5 m intervals along the transect line. Cover was esti- mated as Vi the surface area of each species rather than a simple aerial view and thus could exceed 100% of the surface of the square metre sampled. This method. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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