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On the flux ratio method and the number of valid species names

Published online by Cambridge University Press:  08 April 2016

Andrew R. Solow
Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543. E-mail:
Michael J. Benton
Department of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol BS8 1RJ, United Kingdom. E-mail:


The flux ratio method is a simple method for estimating the rate of synonymy within a group based on variations over time in the status of species names. Here, we correct an error in this method.

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Literature Cited

Agapow, P., Bininda-Emonds, O. R. P., Crandall, K. A., Gittleman, J. L., Mace, G. M., Marshall, J. C., and Purvis, A. 2004. The impact of species concept on biodiversity studies. Quarterly Review of Biology 79:161179.Google Scholar
Alroy, J. 2002. How many named species are valid? Proceedings of the National Academy of Sciences 99:37063711.CrossRefGoogle ScholarPubMed
Alroy, J. 2003. Taxonomic inflation and body mass distributions in North American fossil mammals. Journal of Mammalogy 84:431443.2.0.CO;2>CrossRefGoogle Scholar
Benton, M. J. 2008a. How to find a dinosaur, and the role of synonymy in biodiversity studies. Paleobiology 34:516533.Google Scholar
Benton, M. J. 2008b. Fossil quality and naming dinosaurs. Biology Letters 4:729732.CrossRefGoogle ScholarPubMed
Butterfield, N. J. 2007. Macroevolution and macroecology through deep time. Palaeontology 50:4155.CrossRefGoogle Scholar
Gaston, K. J., and Mound, L. H. 1993. Taxonomy, hypothesis testing, and the biodiversity crisis. Proceedings of the Royal Society of London B 251:39142.Google Scholar
Ross, S. M. 1995. Stochastic processes. Wiley, New York.Google Scholar
Scotland, R. W., and Wortley, A. H. 2003. How many species of seed plant are there? Taxon 52:101104.Google Scholar
Solow, A. R., Mound, L. A., and Gaston, K. J. 1995. Estimating the rate of synonymy. Systematic Biology 44:9396.CrossRefGoogle Scholar
Wang, S. C., and Dodson, P. 2006. Estimating the diversity of dinosaurs. Proceedings of the National Academy of Sciences USA 103:1360113605.CrossRefGoogle ScholarPubMed