11.3 Sampling techniques

Question 1

what are ways that animals are sampled?

Answer 1

pooter
sweep nets
kickback sampling
tree beating
pitfall traps

Question 2

pooter

Answer 2

used to catch small insects

Question 3

sweep nets

Answer 3

used to catch insects in tall grass

Question 4

kickback sampling

Answer 4

used to catch organisms living in a river

Question 5

tree beating

Answer 5

used to catch invertebrates living in trees

Question 6

pitfall traps

Answer 6

used to trap small crawling insects

Question 7

what is the main method of plant sampling?

Answer 7

using a quadrat

Question 8

what are the two types of quadrat?

Answer 8

point
frame

Question 9

point quadrat

Answer 9

frame which has a bar which holds a long pins

long pins are placed across the bar

anything which touches a pin is sampled

Question 10

frame quadrat

Answer 10

frame which has grids

each grid is sampled independently

Question 11

what is a belt transect?

Answer 11

two parallel lines marked

sampling takes place between these lines

uses quadrats

Question 12

what is a line transect?

Answer 12

one line marked

sampling takes place along the line

uses quadrats

Question 13

what are belt and line transects an example of?

Answer 13

systematic sampling

Question 14

how is species richness calculated?

Answer 14

count the number of different species in the sampled area

Question 15

what is used to make it easier to determine the species of a sampled organism?

Answer 15

using a key to correctly identify

Question 16

what are the ways a frame quadrat is used?

Answer 16

finding density
finding abundance
finding percentage cover

Question 17

density

Answer 17

count number of species in a square metre

gives the density per square metre

Question 18

abundance

Answer 18

count the number of squares in which the species is present

percentage the value to find the percentage of sample where species is present

Question 19

what is the main method for sampling animals?

Answer 19

mark-recapture

Question 20

what are the main abiotic factors?

Answer 20

wind speed
light intensity
humidity
pH
temperature
oxygen concentration

Question 21

what is used to detect wind speed?

Answer 21

anemometer

Question 22

what is used to detect light intensity?

Answer 22

light meter

Question 23

what is used to detect humidity?

Answer 23

humidity sensor

Question 24

what is used to detect pH?

Answer 24

pH probe

Question 25

advantages of using a sensor for abiotic factors

Answer 25

less chance of human error
can detect rapid change
high precision
data can be stored