How can biodiversity and endangered species be protected?
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Card 18
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Why does biodiversity make environments more stable?
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Card 19
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How do we sample an area to find the numbers of plants and animals there?
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Card 20
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Using quadrats to get data about biodiversity. 1. The area to be sampled is divided into a numbered grid - each square is the size of one quadrat. 2. A random number generator is used to choose the numbers of the squares sampled. -->
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Card 21
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An area of 2000m2 is sampled, counting the number of dandelion plants. The sample is 100 quadrats each side is 0.5m. The total count of dandelions is 70. Estimate the number of dandelions in the area = number counted x (total area/ area sampled)
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Card 22
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What is the following equation used for? - population= (number in 1st sample x number in 2nd sample)/ number in 2nd sample marked ... N=MX/R
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Card 23
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What conditions must we assume apply when using the capture/recapture technique?
