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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TABLE 7.4 NUMBER OF REPLICATE SAMPLES NEEDED TO SAMPLE THE
BENTHIC INVERTEBRATES OF LAKES AND LARGE RIVERS IN RELATION TO
SIZE OF SAMPLER AND DENSITY OF ORGANISMS STUDIEDs Size of sampler
If this is the case, you are likely to remain forever in the central zone of
uncertainty and take an infinite number of samples. This is clearly undesirable,
and hence there has been an attempt to specify closed boundaries for sample
size, so that ...
For the simple case when approximately the same number of individuals are
caught in each sample (Y = a constant), you can calculate the expected number
of samples you will need to take from Expected number v/2SL of samples to