Diversity Index Flashcards
(8 cards)
1
Q
what does the simpson’s index measure
A
the measure of biodiversity
2
Q
what does the Shannon-wiener index measure
A
how evenly distributed the sample is
3
Q
what does a high shannon index value mean
A
many species and fairly even
4
Q
what does a low shannon index value mean
A
few species, one species dominates the population
5
Q
what does a low simpson’s index mean
A
high diversity
6
Q
what does a high simpsons index value mean
A
low(no) diversity
7
Q
formula of the shannon index
A
Σ (n/N) * ln(n/N)
8
Q
forumla of simpsons index
A
D = Sum(n/N)^2
