DNA reassociation kinetics and diversity indices: richness is not rich enough

被引：3

作者：

Haegeman, Bart ^{[1
,2
]}

Vanpeteghem, Dimitri ^{[1
]}

Godon, Jean-Jacques ^{[1
]}

Hamelin, Jerome ^{[1
]}

机构：

[1] INRA, Lab Environm Biotechnol, UR050, FR-11100 Narbonne, France

[2] INRA, INRIA MERE Res Team, UMR Syst Anal & Biomet, FR-34060 Montpellier, France

来源：

OIKOS | 2008年 / 117卷 / 02期

关键词：

D O I：

10.1111/j.2007.0030-1299.16311.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

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 Renyi 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.

引用

页码：177 / 181

页数：5

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