Biodiversity and sampling

Question 1

What are the 3 types of biodiversity?

Answer 1

habitat, species and genetic

Question 2

What is species diversity?

Answer 2

The number of different species (species richness) and abundance of each species in an area (species evenness).

Question 3

What is habitat diversity?

Answer 3

The number of different habitats in an area

Question 4

What is genetic diversity?

Answer 4

The variation of alleles within a species

Question 5

Describe how sampling is done?

Answer 5

1. choose area
2. count number of individuals of each species
3. repeat

Question 6

How is random sampling achieved?

Answer 6

Divide area into a grid using two tape measures at 90 degrees. Using a random number generator, get x and y coords. place quadrat and count.

Question 7

What are the three types of non random sampling?

Answer 7

systematic, stratified and opportunistic

Question 8

What is stratified sampling?

Answer 8

Different areas in a habitat are sampled separately in proportion to their part of the habitat as a whole.

Question 9

Which two transect techniques are used in systematic sampling?

Answer 9

belt and line transect