Table 2.
Ecological indices of composition and structure by study site in 2014–2015
| Locality | Diama (SRD) | DML (SRV) | Younouféré (Ferlo) | ||||
|---|---|---|---|---|---|---|---|
| Year | 2014 | 2015 | 2014 | 2015 | 2014 | 2015 | |
| Abundance (N) | 51,058 | 75,707 | 81,514 | 30,808 | 108,475 | 8551 | |
| Total richness (S) | 22 | 21 | 18 | 19 | 23 | 23 | |
| Average richness (Sm) | 9.85 | 9.55 | 8.6 | 8.35 | 3.57 | 3.82 | |
| Maximum diversity (H′ max) | 4.459 | 4.392 | 4.169 | 4.247 | 4.523 | 4.523 | |
| Shannon index (H′) | 1.037 | 1.087 | 1.318 | 1.33 | 0.254 | 0.332 | |
| Simpson’s index (1-D) | 0.446 | 0.427 | 0.346 | 0.34 | 0.921 | 0.898 | |
| Equitability index (E) | 0.233 | 0.247 | 0.316 | 0.313 | 0.056 | 0.073 | |
| AR (%) | Ae. vexans arabiensis | 0 | 0.012 | 0 | 0.097 | 96.19 | 79.04 |
| Cx. poicilipes | 0.235 | 0.767 | 0.974 | 1.252 | 0.165 | 1.251 | |
| Cx. tritaeniorhynchus | 57.581 | 52.94 | 46.1 | 33.57 | 0.228 | 1.064 | |
| Ma. uniformis | 32.306 | 36.659 | 34.71 | 46.42 | 0.003 | 0.02 | |
| C (%) | Ae. vexans arabiensis | 0 | 20 | 0 | 25 | 68.33 | 61.66 |
| Cx. poicilipes | 75 | 65 | 90 | 70 | 16.66 | 15 | |
| Cx. tritaeniorhynchus | 100 | 100 | 100 | 95 | 56.66 | 25 | |
| Ma. uniformis | 100 | 100 | 100 | 95 | 6.666 | 1.66 | |
Abbreviations: AR relative abundance, C frequency of occurrence or constancy