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- Title
DNA reassociation kinetics and diversity indices: richness is not rich enough.
- Authors
Haegeman, Bart; Vanpeteghem, Dimitri; Godon, Jean-Jacques; Hamelin, Jérôme
- Abstract
DNA reassociation kinetics, also known as Cot curves, were recently used by Gans and co-workers to estimate the number of bacterial species present in soil samples. By reanalysing the mathematical model we show that rather than the number of species, Simpson and Shannon diversity indices are encoded in the experimental data. Our main tool to establish this result are the so-called Rényi diversities, closely related to Hill numbers, illustrating the power of these concepts in interpreting ecological data. We argue that the huge diversity encountered in microbial ecology can be quantified more informatively by diversity indices than by number of species.
- Subjects
BACTERIA; DNA; SOIL biology; MATHEMATICAL models; MICROBIAL ecology; MICROBIOLOGY
- Publication
Oikos, 2008, Vol 117, Issue 2, p177
- ISSN
0030-1299
- Publication type
Article
- DOI
10.1111/j.2007.0030-1299.16311.x