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Trend lines and the number of species of staphylinidae


Coleopterists Bulletin 33(2): 133-149
Trend lines and the number of species of staphylinidae
The limitations of the use of trend lines to predict the number of species existing are explained. The Cicindelidae of America north of Mexico are used as an example to explain the fitting of calculated trend lines as opposed to the rule of thumb methods used previously. The limitations of interpretation of calculated trend lines are explained. The number of species of Staphylinidae of America north of Mexico is estimated as > 3,416 by a simple method independent of trend lines and it is demonstrated that the use of trend lines gives an erroneous prediction of this total. The number of species of Staphylinidae of the world cannot at present be estimated with any accuracy because of paucity of data suitable for analysis.

Accession: 006839258

DOI: 10.2307/4000012

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