2.1c monitoring populations and measuring and recording animal behavior

Question 1

What is the role of an indicator species?

Answer 1

its presence, absence or abundance of it can give information of environmental qualities, such as presence of a pollutant

Question 2

What is a susceptible species?

Answer 2

Absence or reduced population indicates a species is susceptible to some factor in the environment.

Question 3

What is a favoured species?

Answer 3

Abundance or increased population indicates it is favoured by the conditions.

Question 4

What can susceptible or favoured species be used for?

Answer 4

the monitor an ecosystem

Question 5

What is the procedure for using the mark and recapture technique?

Answer 5

• A sample of the population is captured and marked (M) and released.
• After an interval of time, a second sample is captured (C).
• If some of the individuals in this second sample are recaptured (R),
• then the total population N=MC/R

Question 6

What is the mark and recapture technique used for?

Answer 6

a method for estimating
population size using the formula N=MC/R

Question 7

What does the mark and recapture method assume?

Answer 7

• that all individuals have an equal chance of capture,
• that there is no immigration or emigration,
• and that individuals that are marked and released can mix fully and randomly with the total population.

Question 8

What are methods of marking animals?

Answer 8

• banding,
• tagging,
• surgical implantation,
• painting
• hair clipping

Question 9

What must the method of marking and observation do?

Answer 9

must minimise the impact on the study species

Question 10

What are some of the measurements used to quantify animal behavior?

Answer 10

• latency
• frequency
• duration

Question 11

What is latency?

Answer 11

the time between the stimulus occurring and the response behaviour

Question 12

What is frequency?

Answer 12

the number of times a
behaviour occurs within the observation period.

Question 13

What is duration?

Answer 13

the length of time each behaviour occurs during the observation period.

Question 14

What is an ethogram?

Answer 14

lists species-specific behaviours to be observed and recorded in the study.

Question 15

what allows the proportion of time spent on each behaviour to be calculated in the time budget?

Answer 15

Recording the duration of each of the behaviours in the ethogram, together with the total time of observation,

Question 16

What can anthropomorphism lead to?

Answer 16

invalid conclusions