Good morning once again sir Sardar.

The greater the number of species leads to increase availability of niche for other species thus, it gives more opportunities for the species to be isolated to enhance productivity for its existence and diversification. Thank you

Dr Liezl Sumilhig Mancao thank you for your contribution to the discussion

Species diversity is a measure of community complexity. It is a function of both the number of different species in the community (species richness) and their relative abundances (species evenness). Larger numbers of species and more even abundances of species lead to higher species diversity. At the same time, structural complexity also tends to facilitate biodiversity by increasing available niche space for other flora and fauna species. Within a given habitat, for example, a greater size range of structural elements can support a greater species diversity and abundance due to enhanced niche availability. Diversity plays a different role in a complex system than it does in an equilibrium system, where it often merely produces variation around the mean for performance measures. In complex adaptive systems, diversity makes fundamental contributions to system performance. Because habitats have different physical and chemical characteristics, they are likely associated with different sets of species. Loss of habitat diversity thus potentially leads to loss in species diversity. Within a fixed total community size, species richness decreases due to the stochastic extinction at high levels of environmental heterogeneity because the area available per habitat decreases. Environmental heterogeneity is regarded as one of the most important factors governing species richness gradients. An increase in available niche space, provision of refuges and opportunities for isolation and divergent adaptation are thought to enhance species coexistence, persistence and diversification. Heterogeneity is represented as the precondition for determining diversity, assuming that low heterogeneity provides few niches to support diversity. With higher levels of heterogeneity, the number and types of niches increase, as indicated by the differently colored elements of the letters in the word 'heterogeneity'. Environmental heterogeneity is a crucial determinant of species diversity because a more heterogeneous area provides suitable conditions for a larger number of species with different ecological requirements, thereby increasing the effective species pool.