气候变化领域集成服务门户(CCPortal): Microbial ecosystems are dominated by specialist taxa

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DOI	10.1111/ele.12478
	Microbial ecosystems are dominated by specialist taxa
	Mariadassou M.; Pichon S.; Ebert D.
发表日期	2015
ISSN	1461-023X
EISSN	1461-0248
卷号	18 期号:9
英文摘要	Abundance and specificity are two key characteristics of species distribution and biodiversity. Theories of species assembly aim to reproduce the empirical joint patterns of specificity and abundance, with the goal to explain patterns of biodiversity across habitats. The specialist-generalist paradigm predicts that specialists should have a local advantage over generalists and thus be more abundant. We developed a specificity index to analyse abundance-specificity relationships in microbial ecosystems. By analysing microbiota spanning 23 habitats from three very different data sets covering a wide range of sequencing depths and environmental conditions, we find that habitats are consistently dominated by specialist taxa, resulting in a strong, positive correlation between abundance and specificity. This finding is consistent over several levels of taxonomic aggregation and robust to errors in abundance measures. The relationship explains why shallow sequencing captures similar β-diversity as deep sequencing, and can be sufficient to capture the habitat-specific functions of microbial communities. © 2015 John Wiley & Sons Ltd/CNRS.
英文关键词	Abundance; Beta-diversity; Communities; Microbial ecology; Microbiota; Specialist taxa; Specificity
学科领域	abundance; biodiversity; data set; dominance; environmental conditions; habitat type; microbial activity; microbial community; microorganism; population distribution; taxonomy; animal; biodiversity; biological model; Daphnia; DNA sequence; ecosystem; human; microbial consortium; microbiology; microflora; sediment; zooplankton; Animals; Biodiversity; Daphnia; Ecosystem; Geologic Sediments; Humans; Microbial Consortia; Microbiota; Models, Biological; Sequence Analysis, DNA; Water Microbiology; Zooplankton
语种	英语
scopus关键词	abundance; biodiversity; data set; dominance; environmental conditions; habitat type; microbial activity; microbial community; microorganism; population distribution; taxonomy; animal; biodiversity; biological model; Daphnia; DNA sequence; ecosystem; human; microbial consortium; microbiology; microflora; sediment; zooplankton; Animals; Biodiversity; Daphnia; Ecosystem; Geologic Sediments; Humans; Microbial Consortia; Microbiota; Models, Biological; Sequence Analysis, DNA; Water Microbiology; Zooplankton
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118686
作者单位	Universität Basel, Zoologisches Institut Vesalgasse 1, Basel, 4051, Switzerland
推荐引用方式 GB/T 7714	Mariadassou M.,Pichon S.,Ebert D.. Microbial ecosystems are dominated by specialist taxa[J],2015,18(9).
APA	Mariadassou M.,Pichon S.,&Ebert D..(2015).Microbial ecosystems are dominated by specialist taxa.Ecology Letters,18(9).
MLA	Mariadassou M.,et al."Microbial ecosystems are dominated by specialist taxa".Ecology Letters 18.9(2015).