MARK-RELEASE-RECAPTURE

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HOW TO USE MARK-RELEASE-RECAPTURE TO INVESTIGATE A POPULATION SIZE

  • Catch a sample of the species using an appropriate method.
  • Mark them in a harmless way.
  • Release them back into their habitat.
  • Allow a period of time to elapse e.g. a week.
  • Catch a second sample of the species. 
  • Count how many of them are marked within the sample. 
  • Use this equation to estimate the size

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