11.4

Question 1

what is n and N

Answer 1

n is total no. of organisms of a particular species

N is total no. of organisms if all species

Question 2

what do the D values mean

Answer 2

if D = 0 there is no diversity, if D= 1 there is infinite diversity

Question 3

what are some features of a low biodiversity

Answer 3

few successful species
stressful extreme environmental nature with few ecological niches
V specific adaptations
simple food web
major effect on ecosystem if damage

Question 4

what are some features of a high biodiversity

Answer 4

moderate environmental nature
not specific adaptation
complex food web
many successful species
little effect on ecosystem if damage

Question 5

what is Simpsons index of diversity

Answer 5

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