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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Of course the aerial count would be done only once, but the sample could be
included 2, 3, or more times in the statistical calculations. For sampling with
replacement, N2 Variance of total numbers = (Nss)* = +so Standard error of total
The nearest-neighbor subprogram in program-group SPATIAL PATTERN (
Appendix 2) will do these calculations from the raw data of nearest-neighbor
distances. Step 2: Estimate the expected frequency in each class. These
expected values ...
7.4.3 Power Analysis Calculations The calculations involved in power analysis
are complex and are not presented in detail here. Figure 7.3 illustrates
graphically how power analysis works in principle. In this case we have a fixed
effect size ...