Quantifying the roles of immigration and chance in shaping prokaryote community structure

被引:1159
作者
Sloan, WT
Lunn, M
Woodcock, S
Head, IM
Nee, S
Curtis, TP
机构
[1] Univ Glasgow, Dept Civil Engn, Glasgow G12 8LT, Lanark, Scotland
[2] Univ Oxford, Dept Stat, Oxford OX1 3TG, England
[3] Newcastle Univ, Sch Civil Engn & Geosci, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
[4] Univ Edinburgh, Div Biol Sci, Edinburgh EH9 3JT, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1111/j.1462-2920.2005.00956.x
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Naturally occurring populations of bacteria and archaea are vital to life on the earth and are of enormous practical significance in medicine, engineering and agriculture. However, the rules governing the formation of such communities are still poorly understood, and there is a need for a usable mathematical description of this process. Typically, microbial community structure is thought to be shaped mainly by deterministic factors such as competition and niche differentiation. Here we show, for a wide range of prokaryotic communities, that the relative abundance and frequency with which different taxa are observed in samples can be explained by a neutral community model (NCM). The NCM, which is a stochastic, birth death immigration process, does not explicitly represent the deterministic factors and therefore cannot be a complete or literal description of community assembly. However, its success suggests that chance and immigration are important forces in shaping the patterns seen in prokaryotic communities.
引用
收藏
页码:732 / 740
页数:9
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