Heslop, D.; de Schepper, S.; Proske, U. (2011): Diagnosing the uncertainty of taxa relative abundances derived from count data. Elsevier, Amsterdam, Netherlands, Marine Micropaleontology, 79 (3-4), 114-120, georefid:2011-099233

When working with micropaleontological assemblage data it is necessary to accept that the true population can never be quantified fully. Thus, the investigator must count individuals in the hope of obtaining a representative sample and then determine the uncertainty associated with the taxa relative abundances. Such uncertainties can be obtained by assuming that the relative abundances originate from a multinomial distribution for which a confidence region can be obtained using existing statistical methods. For assemblages containing more than three taxa, however, the determination and representation of multinomial confidence regions become exceedingly cumbersome. Here we outline a simple method that allows diagnostic values of the multinomial confidence region to be calculated for any number of taxa. Examples of such values are the most extreme relative abundances, which allow the user to quantify the interval of a given taxon within the confidence region and the maximum/minimum values of various diversity indices. Abstract Copyright (2011) Elsevier, B.V.
West: 1.3400 East: 2.5908 North: -27.1100 South: -29.0415
Expedition: 208
Site: 208-1262
Expedition: 74
Site: 74-525
Supplemental Information:
Includes 4 appendices
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Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=10.1016/j.marmicro.2011.01.007 (c.f. for more detailed metadata)
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