Human Influences on Tree Diversity and Composition of a Coastal Forest Ecosystem: The Case of Ngumburuni Forest Reserve, Rufiji, Tanzania

Table 3

Biodiversity characteristics of trees and shrubs in both disturbed and undisturbed forests.

Parameter	Undisturbed forest	Disturbed forest	Computed 𝐹
Species richness (%)	37	63	71.3*
Density of regenerants (%)	60	40	89.3*
Stem per ha	554	390	12.3*
Shannon index (𝐻)	2	3.7	42.46*
Index of dominance	0.09	0.026	97.7*

Source: own survey, 2007.
𝐹(1,42) = 4.07; 𝑃<0.05.