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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Every individual has the same probability (a,) of being caught in the t-th sample,
regardless whether it is marked or ... The critical assumption of equal catchability
for marked and unmarked individuals must be tested before you can rely on ...
In extreme cases an individual's catchability is zero, and the presence of such
individuals can be detected only by a change in the ... Figure 2.7 gives a flow
chart to guide you in deciding which test of equal catchability you should employ.
TABLE 2.5 SIGNIFICANCE TABLE FOR CHAPMAN'S TEST OF EQUAL
CATCHABILITY Number of Observed number of negative differences, X sampling
periods, s 0 1 2 3 4 5 6 7 5 0.0035 0.0590 0.3056 0.6944 0.94.10 0.9965 1.0000