19.6 - Sampling Animal Populations Flashcards
Why quadrats have limitations for measuring animal abundance The steps involved in the mark-release-recapture technique Assumptions made when using the mark-release-recapture technique
1
Q
What are the limitations of quadrats for measuring animal abundance?
A
Animals are mobile
2
Q
When can quadrats be used to sample animals?
A
Slow-moving animals
3
Q
What is the mark-release-recapture technique used for?
A
Estimating population size of motile species
4
Q
What are the steps in the mark-release-recapture technique?
A
Capture
5
Q
What is the formula for estimated population size?
A
(Total individuals in first sample x Total individuals in second sample) / Number of recaptured marked individuals
6
Q
What are the assumptions of the mark-release-recapture technique?
A
Even distribution
