Benjamin/Cummings, 1999 - Science - 620 pages
This coherent text translates the methods of statisticians into "ecological English" so that students may readily apply these methods to the real world. Ecological Methodology, Second Edition provides a balance of material on animal and plant populations. It teaches students of ecology how to design the most efficient tests in order to obtain maximum precision with minimal work. The first part of the text focuses on biological and technical issues in statistical methodology. Students learn about advances that have been made in designing better sampling devices, along with the techniques and equipment used for sampling. The second part deals with creating solid statistical design, and presents all methods that are well-known to statisticians in a language and context that students will easily understand.
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2.1.2 Sample Size Estimation Let us now turn the Petersen method upside down
and ask, given a rough estimate of population size (N), How large a sample do I
need to take to get a good estimate of abundance? This is a key question for a ...
1)*. 2. True density A 2.35 73 Thus the biased density estimated from the area of
the grid is _ Population estimate 127 mice - - imate = -. Biased. density estima
Size of study area 0.8 ha = 159 mice per ha - - 159 - Corrected density estimate =
An alternative use of sequential sampling is to estimate population parameters.
For example, you may wish to estimate the abundance of European rabbits in an
area (as opposed to trying to classify the density as low, moderate, or high).