Table 5.3. Community Similarity Between Hummock and Off-Hummock Species. Wetland Community Number of Species Similar Sorensen Location Date Sampled Type Species (s) to Off-Hummock Coefficient Agrifos 5/19/99 sand 12 8 0.70 organic 8 4 0.42 overburden 17 5 0.36 all hummocks 20 8 0.52 off hummock 11 Agrifos 8/5/99 sand 16 8 0.47 organic 16 8 0.47 overburden 19 8 0.43 on hummock 29 12 0.51 off hummock 18 Agrifos 10/13/99 sand 19 10 0.57 organic 18 7 0.41 overburden 17 6 0.36 on hummock 29 11 0.49 off hummock 16 Agrifos Sum2000 sand 23 14 0.55 organic 15 9 0.42 overburden 30 14 0.48 on hummock 41 17 0.49 offhummock 28 Cargill 9/13/99 organic 13 6 0.52 overburden 10 7 0.70 on hummock 15 8 0.64 off hummock 10 Cargill 11/1/99 organic 19 6 0.46 overburden 13 6 0.60 on hummock 20 7 0.52 off hummock 7 Cargill Sum2000 organic 46 9 0.31 overburden 43 7 0.25 on hummock 52 9 0.28 off hummock 12 Iluka 5/4/99 on hummock 16 8 0.67 off hummock 8 Iluka 8/31/99 on hummock 21 5 0.34 off hummock 8 Iluka 10/20/99 on hummock 21 8 0.50 off hummock 11 5-42