Species diversity and similarity index
The Shannon diversity of mammal species was higher in the grassland (H =
2.198) and in dense forest (H=2.165), respectively, than in other
habitats. However, there was no significant difference in Shannon –
Wiener Index values between the four habitat types. The higher and lower
evenness of the mammalian species was recorded in grassland (E = 0.5628)
and natural forest (E = 0.4843). The dominance of mammalian species was
recorded from the highest to the lowest in the crop land (D = 0.1881)
and grassland (D = 0.1655), respectively. Shannon differing qualities,
records and dominance of mammalian species were similar during the dry
and wet seasons. The overall species richness of Arjo Diga forest was 19
and Shannon–Wiener Index value (H) was 2.296 and Simpson’s index of
diversity showed the highestspecies diversity (0.8406) in the study
area. Among the four habitats, more closeness of mammalian species was
watched between shrubs and crop land (0.55) and the least similarity
observed between grassland vs. dense forest (0.48)(Figure 6).