Table 4.

Diversity indexes of bacterial communities in Rambla Salada at the three sites and sampling seasons.

Sampling season	Range-weighted richness (Rr)	Functional organization (Fo)	Shannon-Weaver (H')	Simpson's (SI')
June-06	41.36 ± 25.95*	59.52%*	2.22 ± 0.34*	0.13 ± 0.07*
February-07	74.14 ± 38.31	53.81%	2.60 ± 0.36	0.11 ± 0.06
November-07	58.73 ± 26.86	52.26%	2.63 ± 0.24	0.09 ± 0.02
LSD‡	0.0365	0.0128	0.0385	0.0251

^*Significant differences among the three sampling seasons.

^‡Least-significant difference at p < 0.05.