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A-Level Biology OCR A

Population Number Suggest Size Animals Estimated Estimating Capture

This card describes a method for estimating animal population size: capture individuals, mark them, release them, recollect them, and use the number of marked individuals to estimate the population.

Bu kart, hayvan popülasyonlarının boyutunu tahmin etmek için bir yöntem açıklar: bireyleri yakalamak, işaretlemek, salmak, yeniden toplamak ve işaretli birey sayısını kullanarak popülasyonu tahmin etmek.

Front Suggest how the population size of animals can be estimated.
Back Estimating animal population size:
  • Capture as many individuals of a species in an area as possible
  • Mark them, release into community
  • Allow time for organisms to redistribute themselves throughout habitat
  • Collect same number of individuals 
  • Count number of marked invidiuals, using this, estimate the population

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