One profile line was placed to coincide with the seaward crest of 

 the foredunes. The other was 30 to 50 feet (9 tg 15 meters) 

 landward of the first profile line. For the 1,200-foot bitter 

 panicum dune, a third line was placed at the landward edge of the 

 100-foot-wide plantings for the 300- to 600-foot (91 to 183 meters) 

 and 900- to 1,200-foot (274 to 366 meters) segments. For the dune- 

 width extension, the south 500 feet (122 meters) of the 1,500-foot 

 (457 meters) monthly planting-species comprison foredune, longitudinal 

 profiles were surveyed for both the seaward 50- foot width and the 

 landward 50-foot width. Elevations were recorded with each abrupt 

 change in topography. Distances were measured by tape to the 

 nearest foot (0.3 meter). 



b. Photos . Colored slides (35 millimeter) and black and 

 white photos of the foredunes were taken at each profile survey. 

 Eleven photo points for each of the five study areas are as follows: 



(a) From 200 feet in front of the dune looking bayward 

 at the dune. 



(b) Three views from the north end of the dune looking 

 south— along the gulf side, from the top of the dune, 

 and along the bay side of the dune. 



(c) Two views (bayward and gulfward) from the north 

 end top of the dune. 



(d) Three views from the south end looking north- 

 along the gulf side, along the top, and along the 

 bay side. 



(e) Two views (gulfward and bayward) from the top of 

 the south end. 



c. Vegetation. In August 1975 and August 1976 vegetative 

 transects were made in the five study areas. The following tran- 

 sects were placed paralleling the beach: a 60-plot transect on the 

 seaward slope of the foredune, a 60-plot transect on the landward 

 slope of the foredune, a 40-plot transect 25 feet (8 meters) land- 

 ward of the dune, a 40-plot transect 125 feet (38 meters) landward 

 of the dune, and a 40-plot transect 225 feet (69 meters) landward 

 of the dune. A 3. 70-foot-diameter (133 centimeters) circular plot 

 with an area of 1 square meter was used. Frequency and cover data 

 were recorded in each plot. Cover classes recorded were: 1, to 1 

 percent; 2, 1 to 5 percent, 3, 5 to 25 percent; 4, 25 to 50 percent; 

 5, 50 to 75 percent; 6, 75 to 95 percent; 7, 95 to 99 percent; and 

 8, 99 to 100 percent (App. B) . An importance value (IV) was com- 

 puted by multiplying cover times frequency. 



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