Table 3.

Anopheles species richness and diversity in lowland and highland of western Kenya.

Year	2015	2016	2017	2018	2019
Highland
Individuals	307	819	391	405	337
Observed richness (S)	10	15	15	10	10
Simpson’s dominance (D2)	0.39 (0.36, 0.42)*	0.42 (0.40, 0.44)	0.26 (0.24, 0.29)	0.32 (0.28, 0.36)	0.37 (0.33, 0.42)
Simpson’s diversity (D1)	0.61 (0.58, 0.64)	0.58 (0.56, 0.60)	0.74 (0.71, 0.76)	0.68 (0.64, 0.72)	0.63 (0.58, 0.68)
Shannon’s diversity (H)	1.20 (1.09, 1.31)	1.16 (1.08, 1.24)	1.63 (1.54, 1.73)	1.49 (1.40, 1.58)	1.37 (1.26, 1.48)
Simpson's evenness (€)	0.33 (0.30, 0.37)	0.21 (0.20, 0.23)	0.34 (0.31, 0.38)	0.44 (0.40, 0.49)	0.39 (0.35, 0.44)
Berger–Parker dominance (BP)	0.48 (0.43, 0.54)	0.54 (0.51, 0.58)	0.39 (0.34, 0.44)	0.52 (0.47, 0.56)	0.55 (0.50, 0.61)
Lowland
Individuals	95	180	159	620	243
Observed richness (S)	7	7	7	10	3
Simpson’s dominance (D2)	0.41 (0.33, 0.50)	0.32 (0.30, 0.36)	0.28 (0.26, 0.32)	0.41 (0.38, 0.44)	0.43 (0.39, 0.48)
Simpson’s diversity (D1)	0.59 (0.50, 0.67)	0.68 (0.64, 0.70)	0.72 (0.68, 0.74)	0.59 (0.56, 0.62)	0.57 (0.52, 0.61)
Shannon’s diversity (H)	1.20 (1.01, 1.38)	1.27 (1.15, 1.36)	1.39 (1.31, 1.50)	1.16 (1.09, 1.24)	0.97 (0.89, 1.02)
Simpson's evenness (€)	0.47 (0.40, 0.57)	0.51 (0.48, 0.67)	0.58 (0.53, 0.64)	0.32 (0.30, 0.35)	0.88 (0.81, 0.93)
Berger–Parker dominance (BP)	0.58 (0.47, 0.67)	0.38 (0.36, 0.46)	0.37 (0.31, 0.45)	0.58 (0.54, 0.62)	0.58 (0.52, 0.65)

*The numbers in square brackets represent the 95% confidence interval (CI) for the estimated indices. All these indices were calculated using PAST 4.0 software package.