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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Three different types of clumping are shown here. (a) Small clumps. (b) Large
clumps with individuals randomly distributed within each clump. (c) Large clumps
with individuals uniformly distributed within each clump. The ecological problem
(1994) suggest that in general the bias of the point-quarter estimator for clumped
patterns is as low as that of the ordered distance estimator and the variable-area
transect estimator that they recommend. Table 5.1 summarizes the size of the ...
The ecological interpretation is that amabilis fir seedlings in this community are
strongly clumped, and on average the clumps are 60–100 cm apart (twice the
blocksize peak multiplied by the quadrat size of 10 cm). Program-group SPATIAL