| Indices | Shannon index | Simpson index | ||||||
| Areas | H' | t | df | p | D | t | df | p |
| Peripheral | 4.243 | −2.239 | 1070.4 | 0.025* | 0.018 | 0.381 | 1070 | 0.704 |
| KFR | 4.359 | 0.017 | ||||||