Table 6.
Non-parametric statistical estimators of species richness from Colwell's EstimateS program [47].
| Data | ICE | Chao 2 | Jackknife 2 |
| All Samples | 281 | 280 | 313 |
| Southern Samples (O°N, 2°N & 5°N) | 264 | 260 | 287 |
| Northern Samples (9°N & 23°N) | 139 | 129 | 147 |
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