Table 2 Number of Kalyptorhynchia species in 15 sites of the northern Wadden Sea tidal inlets, studied 1982–1984 and 2018, and similarity of species composition between sites
From: Analysing long-term change in small benthos: geomorphological dynamics affects method selection
Site | No. of Kalyptorhynchia species | Similarity | |||||
|---|---|---|---|---|---|---|---|
1982–1984 total | 2018 total | Present in both periods | Present only in 1982–1984 | Present only in 2018 | Sørensen’s index (%) | Jaccard’s index (%) | |
1 | 2 | 7 | 0 | 2 | 7 | 0 | 0 |
3 | 2 | 5 | 0 | 2 | 5 | 0 | 0 |
4 | 1 | 11 | 0 | 1 | 11 | 0 | 0 |
5 | 20 | 3 | 1 | 19 | 2 | 9 | 5 |
6 | 4 | 1 | 0 | 4 | 1 | 0 | 0 |
26 | 11 | 2 | 0 | 11 | 2 | 0 | 0 |
27 | 12 | 1 | 1 | 11 | 0 | 15 | 8 |
29 | 2 | 0 | 0 | 2 | 0 | 0 | 0 |
30 | 2 | 0 | 0 | 2 | 0 | 0 | 0 |
31 | 4 | 0 | 0 | 4 | 0 | 0 | 0 |
32 | 3 | 7 | 1 | 2 | 6 | 20 | 11 |
34 | 12 | 5 | 1 | 11 | 4 | 12 | 6 |
35 | 14 | 8 | 7 | 7 | 1 | 64 | 47 |
37 | 4 | 0 | 0 | 4 | 0 | 0 | 0 |
39 | 5 | 2 | 0 | 5 | 2 | 0 | 0 |
Average | 6.5 | 3.5 | 0.7 | 5.8 | 3.0 | 8.0 | 5.1 |
All sites | 53 | 34 | 21 | 31 | 14 | ||