Direct Sampling

Question 0

Can be done by

Answer 0

Direct counting of individual plants.

Eg - The green-winged orchid.

Question 1

Sampling provides an estimate of the size of a

Answer 1

Population in absence of an absolute count of all the individuals in the whole population.

Question 2

Many species cannot be counted directly as it is difficult to

Answer 2

Distinguish between individuals.

Question 3

Most plant sample involves estimates of relative abundance using

Answer 3

Measures such as percentage cover or biomass.

Question 4

Best sample technique for mobile animals -

Answer 4

The butterfly monitoring scheme; A recorder takes the same walk each week and notes the number of adult butterflies seen - The walk and count sampling system.

Question 5

The walk and count sampling system gives an estimate of the

Answer 5

Relative sizes of different populations of the same species. This can be compared with different locations and time periods.

Question 6

Common butterfly species are increasing in both

Answer 6

Abundance and geographical range.