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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The second sample must be a random sample for this method to be valid; that is,
all individuals must have an equal chance of being captured in the second
sample, regardless of whether they are marked or not. The data obtained are M ...
If accidental deaths occur during the first sampling and marking, the estimate of N
is valid but refers to the number of individuals alive in the population after the first
sample is released. Natural mortality may occur between the first and second ...
Tag losses can be estimated easily by giving all the Mindividuals in the first
Petersen sample two types of tags, and then recording the following in the
second sample: RA = Number of tagged animals in second sample with only an
A-tag (i.e., ...