Lesson 1- Sampling Techniques Etc

Question 1

What are sampling techniques

Answer 1

Sampling technique are use dti find out
-estimate population size

• which organisms are living in an ecosystem
• the number of different species in an area
• distribution of different species

Question 2

The 3 Sampling techniques

Answer 2

-quadrants
-transects
-capture recapture

Question 3

Quadrants

Answer 3

Used to estimate the number and distribution of organisms that are stationary. And carried out by deciding an ecosystem up using grids and selections coordinate to sample

Question 4

Quadrants equation

Answer 4

Tostada population=
number In one quadrat x toatal area
——————————-
Area of quadrat

3x9
——-
1
= 27 weeds

Question 5

Transects

Answer 5

Used to measure change from one area to another where environmental conditions vary

Question 6

How is transects carried out

Answer 6

Carried out by laying a line along and area and then recording organising that touch the line or placing quadrants at regular intervals and counting organisms inside the quadrats

Question 7

Transects formula

Answer 7

Estimated density =

Total number of individuals counted
——————————-
Number of quadrats x area of each quadrat

100
——
2
4x 1m
2
= 25 per m