section5.census

section5.census - Anthropology 154B: Primate Evolutionary...

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Anthropology 154B: Primate Evolutionary Ecology Section 5: Duck Census Part 1: The Field Ecologists are often interested in estimating the size of local populations of animals. For example, have you ever wondered how many ducks are living in the Arboretum? In this lab, we will be calculating the number of ducks in the arboretum. When trying to figure out the number of animals in a population, it is often not practical or possible to count every animal. The Arboretum covers about 40 hectares, there is little chance that we could check every square meter for ducks in a single session. Furthermore, even if this were practical, ducks move around. The necessarily sequential nature of a complete census means that some ducks would probably be missed, or counted twice. Since we can’t be everywhere within the arboretum at once, we will use a sampling procedure to estimate the duck population in the Arboretum. We are trying to estimate the entire population of Arboretum ducks. Call this number N. We know the total area of the arboretum ( A ), 40 hectares. What we need to measure then is a sample population,
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This note was uploaded on 04/05/2011 for the course ANT 154bn taught by Professor Debello during the Winter '10 term at UC Davis.

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section5.census - Anthropology 154B: Primate Evolutionary...

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