Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12941 |
The more-individuals hypothesis revisited: the role of community abundance in species richness regulation and the productivity-diversity relationship | |
Storch, David1,2,3; Bohdalkova, Eliska1,2,3; Okie, Jordan4,5,6 | |
2018-06-01 | |
发表期刊 | ECOLOGY LETTERS |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2018 |
卷号 | 21期号:6页码:920-937 |
文章类型 | Review |
语种 | 英语 |
国家 | Czech Republic; USA |
英文摘要 | Species richness increases with energy availability, yet there is little consensus as to the exact processes driving this species-energy relationship. The most straightforward explanation is the more-individuals hypothesis (MIH). It states that higher energy availability promotes a higher total number of individuals in a community, which consequently increases species richness by allowing for a greater number of species with viable populations. Empirical support for the MIH is mixed, partially due to the lack of proper formalisation of the MIH and consequent confusion as to its exact predictions. Here, we review the evidence of the MIH and evaluate the reliability of various predictions that have been tested. There is only limited evidence that spatial variation in species richness is driven by variation in the total number of individuals. There are also problems with measures of energy availability, with scale-dependence, and with the direction of causality, as the total number of individuals may sometimes itself be driven by the number of species. However, even in such a case the total number of individuals may be involved in diversity regulation. We propose a formal theory that encompasses these processes, clarifying how the different factors affecting diversity dynamics can be disentangled. |
英文关键词 | Abundance biodiversity patterns climate diversity equilibria environmental productivity extinction latitudinal diversity gradient speciation species-energy relationship |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431987100015 |
WOS关键词 | ENERGY RELATIONSHIPS ; BIRD COMMUNITIES ; CONTINENTAL SCALES ; SPATIAL SCALE ; HABITAT HETEROGENEITY ; MAXIMUM-ENTROPY ; GLOBAL PATTERNS ; TROPHIC LEVELS ; FOSSIL RECORD ; GRADIENTS |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31475 |
专题 | 资源环境科学 |
作者单位 | 1.Charles Univ Prague, Ctr Theoret Study, Prague, Czech Republic; 2.Acad Sci Czech Republ, Prague, Czech Republic; 3.Charles Univ Prague, Fac Sci, Dept Ecol, Prague, Czech Republic; 4.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA; 5.Arizona State Univ, Sch Life Sci, Tempe, AZ USA; 6.Arizona State Univ, Sch Future Innovat Soc, Tempe, AZ USA |
推荐引用方式 GB/T 7714 | Storch, David,Bohdalkova, Eliska,Okie, Jordan. The more-individuals hypothesis revisited: the role of community abundance in species richness regulation and the productivity-diversity relationship[J]. ECOLOGY LETTERS,2018,21(6):920-937. |
APA | Storch, David,Bohdalkova, Eliska,&Okie, Jordan.(2018).The more-individuals hypothesis revisited: the role of community abundance in species richness regulation and the productivity-diversity relationship.ECOLOGY LETTERS,21(6),920-937. |
MLA | Storch, David,et al."The more-individuals hypothesis revisited: the role of community abundance in species richness regulation and the productivity-diversity relationship".ECOLOGY LETTERS 21.6(2018):920-937. |
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