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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Two general points can be noted by inspecting Figure 3.1, and we can formulate
them as rules of guidance: 1. Ap, the expected change in proportions, is the
critical variable affecting the required sample sizes of change-in-ratio
In some situations an ecologist may have an exact map of the geographical
location of each individual organism. Figure 6.1 illustrates this type of spatial data
for redwood seedlings in California. Such data represent a complete
enumeration of ...
i i I - Slope = 1.5 T I I Mean density (log scale) Figure 15.7 The problem of
estimating variability in a population. The figure shows the relationship between
the coefficient of variation (log scale) and the mean density of the population (log