3.4.6 - biodiversity within a community Flashcards
(4 cards)
1
Q
what does biodiversity relate to?
A
a range of habitats, from a small local habitat to the Earth
2
Q
what is species richness?
A
a measure of the number of difference species within a community
3
Q
what does an index of diversity describe?
A
the relationship between the number of species in a community and the number of individuals in each species
4
Q
how do you calculate an index of diversity (d)?
A
d=N(N-1)/Σn(n-1)
N = total number of organisms of all species
n = total number of organisms of each species
