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en.wikipedia.org/wiki/Mark_and_recapture

Mark and recapture is a method commonly used in ecology to estimate an animal population's size. A portion of the population is captured, marked, and released. Later, another portion is captured and the number of marked individuals within the sample is counted.

newonlinecourses.science.psu.edu/stat506/node/57

In Section 12.1, we introduce capture-recapture sampling and discuss application of it to estimating population size. We then provide the formula for the variance of estimate. An example is provided for the capture-recapture sampling. This is the direct sampling of capture-recapture where both the capture size and the second capture size are ...

The Mark and Recapture Technique By far the most popular way to measure the size of a population is called the Mark and Recapture Technique. This technique is commonly used by fish and wildlife managers to estimate population sizes before fishing or hunting seasons. The mark and recapture method involves marking a number of individuals in a

www.resourceaholic.com/2016/10/capturerecapture.html

Stratified sampling is a great opportunity to use proportional reasoning, as is the capture-recapture method. If you've taught Edexcel's GCSE Statistics then you'll already be familiar with capture-recapture, but I'll explain it here in case you've not seen it before.

www.biologycorner.com/worksheets/estimating_population...

Objective: You will be expected to estimate the size of a sample population using the mark-recapture technique and compare the mark and recapture technique to other methods of population estimating. 1. You are given the responsibility of determining the number of fish in Horseshoe Lake. Discuss with ...

www.tes.com/teaching-resource/capture-recapture-new-gcse...

This is a simple PowerPoint I made for my Year 11s to teach the relatively straightforward new topic of Capture Recapture. It has a link to a video featuring Jonny Ball demonstrating it in practice which is quite good. I tried to embed it as a flash vide but I've included the YouTube link if that doesn't work.

www.bbc.com/bitesize/guides/zmxbkqt/revision/3

Capture-mark-recapture. A way to estimate the population size of an animal species is using the capture-mark-recapture method:. animals are trapped, eg using pitfall traps; they are marked in a ...