10.2 diversity within a community

Question 1

definition of biodiversity

Answer 1

number & variety of living organisms in a particular area

Question 2

species diversity

Answer 2

variety of genes possessed by an individual that make up a population of species

Question 3

ecosystem

Answer 3

all living & non-living components of a particular area

Question 4

species richness

Answer 4

number of different species in a particular area at a given time

Question 5

what does a higher simpson’s diversity index mean?

Answer 5

higher species diversity, stable and ancient environment

Question 6

what does a low simpson’s diversity index mean?

Answer 6

polluted environment, recent colonisation, agricultural management

Question 7

explain the advantage of increasing diversity.

Answer 7

the ecosystem will be more stable and resistant to change
-> some species (in the ecosystem) could withstand & have traits to cope with change
-> less hostile as organisms dominate over climate