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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Individuals caught at each sample are first examined for marks, then marked and
released. Marking occurs at each of the sampling times. Only a single type of
mark need be used, since throughout a Schnabel experiment we need to ...
In the second sample all of the 15 marked voles must have been last caught in
the first sample. But in the third sample marked animals may have been last
caught at time 2 (15) or time 1 (1). Marked individuals may thus evade capture for
Consider a small example from a mark-recapture study (0 = not caught, 1 =
caught): Tag number Time 1 Time 2 Time 3 ... 1 0 1 No. caught 5 3 4 3 5 Minimum
5 5 6 6 5 number alive Individuals miss being caught at one or more sample