Table 1 Number of species and Shannon diversity index for three dry forests before (T0) and 2 (T2) and 4 years (T4) after dam construction in southeastern Brazil. Letters refer to the Hutcheson t test, where same letters indicate same diversity; degrees of freedom >500, p < 0.05
From: Rapid changes in tree composition and biodiversity: consequences of dams on dry seasonal forests
| Â | Arboreal component | |||||
|---|---|---|---|---|---|---|
| Â | Number of species | Shannon index | ||||
| Â | T0 | T2 | T4 | T0 | T2 | T4 |
Deciduous 1 | 45 | 50 | 57 | 2.50a | 2.57a | 2.69b |
Deciduous 2 | 57 | 67 | 68 | 2.66a | 2.83b | 2.89b |
Semideciduous | 89 | 91 | 93 | 3.43a | 3.48ab | 3.54b |