Simpson's Index of Diversity

Question 1

What is simpson’s index of diversity?

Answer 1

measure of species biodiversity

takes into account - species richness and eveness

Question 2

What is simpson’s index of diversity equation?

Answer 2

D = 1 - (E(n/N)^2)

d is always between 0 and 1

Question 3

What is n and N?

Answer 3

n - total number of individuals of one type of species

N - total number of individuals of all species

Question 4

What does a high value indicate?

Answer 4

high species biodiversity, high species richness, high species evenness
stable ecosystem, ecosystem should be conserved

Question 5

What does a low value for d indicate?

Answer 5

low species biodiversity, not a stable ecosystem, ecosystem
is dominated by one or a few species (low species evenness), change in one species can have
an affect on the whole ecosystem