Table 2.
Metacommunity structures in the zygopteran of negligibly impacted and impacted streams in the Belém area of endemism (BAE) and Tapajós area of endemism (TAE)
| Metacommunity | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| All communities | Negligibly impacted | Impacted | |||||||
| All | BAE | TAE | All | BAE | TAE | All | BAE | TAE | |
| Coherence | |||||||||
| p | <.001 | .401 | .261 | <.001 | .001 | .519 | <.001 | .065 | .465 |
| Embedded absences | 1898 | 795 | 603 | 766 | 286 | 231 | 520 | 280 | 178 |
| Z | 9.073 | 5.490 | 1.123 | 5.634 | 3.139 | 0.644 | 6.313 | 1.841 | 0.730 |
| sim. Mean | 3550.2 | 1259 | 657.879 | 1152.2 | 383 | 244.208 | 1120.6 | 348 | 192 |
| sim. SD | 182.08 | 84.631 | 48.851 | 68.560 | 31 | 20.496 | 95.139 | 37.029 | 19.785 |
| Method | R1 | R1 | R1 | R1 | R1 | R1 | R1 | R1 | R1 |
| Turnover | |||||||||
| p | .226 | .560 | .436 | <.001 | <.001 | .417 | .995 | .261 | .427 |
| Replacements | 486410 | 80165 | 23849 | 111874 | 19599 | 4760 | 66172 | 5801 | 5173 |
| Z | −1.209 | −0.582 | −0.777 | −3.852 | −3.331 | −0.810 | 0.005 | 1.123 | −0.793 |
| sim. Mean | 364287.2 | 68848 | 19463.302 | 53970.1 | 10251 | 3850.157 | 66281.4 | 9163 | 4232 |
| sim. SD | 100984.6 | 19416 | 5640.221 | 15031.06 | 2805 | 1122.994 | 19671.7 | 2992 | 1185 |
| Method | R1 | R1 | R1 | R1 | R1 | R1 | R1 | R1 | R1 |
| Clumping | |||||||||
| Index | 2.918 | 3.309 | 2.546 | 2.314 | 1.911 | 2.484 | 2.181 | 3.857 | 1.434 |
| p | <.001 | <.001 | <.001 | <.001 | .001 | <.001 | <.001 | <.001 | .008 |
| Quasi‐Clementsian | Random | Random | Clementsian | Clementsian | Random | Clumped species loss | Random | Random | |