Ecological MethodologyThis 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. |
From inside the book
Results 1-3 of 20
Charles J. Krebs. Stratum A Stratum B Stratum C Figure 8.1 The idea of stratification in estimating the size of a plant or animal population . Stratification is made on the basis of population den- sity . Stratum A has about ten times ...
... stratum separately and the means and variances calculated for each stratum from equations ( 8.2 ) and ( 8.3 ) . We will defer until the next section a discussion of how to decide sample size in each stratum . Table 8.3 gives sample data ...
... stratum h Sampling fraction in stratum h = n1 / N The last term in this summation is the finite population correction , and it can be ignored if you are sampling less that 5 % of the sample units in each stratum . Note that the variance ...