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. |
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... sample unit happens to contain 2 or 3 points , it is counted 2 or 3 times in the subsequent calcula- tions . We need to make the aerial count of it only once of course . This is another example of sampling with replacement , and method ...
... sample units in stratum h ) N = Size of entire statistical population The stratum weights are proportions and must add up to 1.0 ( Table 8.3 ) . Note that the N must be expressed in sample units . If the sample unit is 0.25 m2 , the ...
Charles J. Krebs. 8.5.2 Sampling Units of Unequal Size If the sampling units are of varying size , calculations of ... unit has 49 elements , so its probability of selection should be 49/123 or 0.40 , while the smallest unit has only 4 ...