#4.6.1
Biodiversity can relate to a range of habitats, from a small local habitat to the Earth.
#4.6.2
Species richness is a measure of the number of different species in a community.
#4.6.3
An index of diversity describes the relationship between the number of species in a community and the number of individuals in each species.
#4.6.4
Calculation of an index of diversity (\(d\)) from the formula
\(d = \dfrac{N(N-1)}{\sum{n(n-1)}}\)
where \(N\) = total number of organisms of all species
and \(n\) = total number of organisms of each species.
#4.6.5
Farming techniques reduce biodiversity. The balance between conservation and farming.