biodiversity

Question 1

define biodiversity

Answer 1

looks at the variation between living organisms of the same species or different species

Question 2

what factors can biodiversity be influenced by

Answer 2

• number of species
• number of habitats
• range of genes
  (greater variation in a species = greater biodiversity)

Question 3

define species richness

Answer 3

a measure of the number of different species in a community

Question 4

evaluate species richness

Answer 4

+ easiest way to measure species diversity
- doesn’t take into account the number of individuals

Question 5

define species diversity

Answer 5

the number of different species in a community and the abundance of the different species

Question 6

what does species diversity look at

Answer 6

• number of different species
• number of individuals of each species

Question 7

what is species diversity then used to calculate

Answer 7

index of diversity

Question 8

why do researchers use the index of diversity

Answer 8

shows the relationship between number of different species in a community and the number of individuals in each species

Question 9

what does the N stand for in the index of diversity

Answer 9

total number of organisms

Question 10

what does the n stand for in the index of diversity

Answer 10

total number of organisms for a single species

Question 11

if the value for the index of diversity (d) is bigger, what does this mean in terms of biodiveristy

Answer 11

higher value for d = higher biodiveristy