Estimating mobile populations by recapture

Biologia IBPaper 1B, maj 2025, TZ2wzorowane3 pktotwarteśrednie (szac.)

Zadanie 2c

Outline a method for estimating the number of roach in this wetland.

• Materiał graficzny

Biologia IBPaper 1A, maj 2025, TZ1wzorowane1 pktzamknięteśrednie (szac.)

Zadanie 36

Ecologists mark 84 woodlice and return them to a study site. After mixing, a second sample contains 72 woodlice, of which 18 are marked. Using N = MC/R, what is the estimated population? A. 174 B. 336 C. 6048 D. 1512

Biologia IBPaper 2, specimen 2025wzorowane3 pktotwarteśrednie (szac.)

Zadanie 5c

(i) Outline how mark–release–recapture could estimate the rabbit population size. (ii) State one assumption needed for this estimate.

Biologia IBPaper 3, maj 2023, TZ1wzorowane3 pktotwarteśrednie (szac.)

Zadanie 18d

Explain how capture–mark–release–recapture could estimate the fish population in a small lake.

• Materiał graficzny