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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or, transposing CM W = + 2.1 R (2.1) where N = Estimate of population size at
time of marking,” and the other terms are as defined above This formula is the “
Petersen estimate” of population size and has been widely used because it is ...
sampling time t, or in the symbols defined above, - - M,41 = − 2.20 * M, + (s, – m,)
(2.20) This formula corrects for all accidental deaths or removals at time t. Note
that the probability of survival is determined by sampling the marked population ...
Charles J. Krebs, CHARLES L. KREBS, Professor of Zoology Charles J Krebs.
where x = Population mean x = Observed value of x in sample i n = Sample size
For the variance of the measurements, we have the usual formula:* — `Y2 ...