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| DOI | 10.1111/ele.12431 |
| Intrinsic dynamics of the regional community | |
| Ricklefs R.E. | |
| 发表日期 | 2015 |
| ISSN | 1461-023X |
| EISSN | 1461-0248 |
| 卷号 | 18期号:6 |
| 英文摘要 | Patterns of diversity within large regional biotas express the outcomes of processes, operating on both regional and local scales, that influence evolutionary diversification as well as the distribution and abundance of species. Regional analyses of species distributions suggest that neither ecological sorting of species based on their adaptations to the physical environment, nor interactions between competing species, adequately explain patterns of species richness. Potentially competing species appear to utilise broadly overlapping resources with similar proficiency. Phylogenetic and phylogeographic analyses reveal that species abundances and distributions within regions vary independently of evolutionary relationship. This implies the existence of dynamic, species-specific controls on population growth, as could be applied by specialised pathogens or other antagonists. Here, I argue that the changing balance of coevolved interactions between hosts and their antagonists shapes the distribution and abundance of individual host populations as well as patterns of local species richness. Geographical expansion creates allopatric populations and thereby could promote diversification; contraction ultimately leads to extinction. This taxon-cycle dynamic links regional diversity and distribution to intrinsic biological interactions independently of extrinsic ecological conditions. These hypotheses emphasise the central importance of investigating the impacts of pathogens on species abundance and distribution, and the potential consequences of coevolutionary changes in pathogen-host relationships for species formation and extinction. © 2015 John Wiley & Sons Ltd/CNRS. |
| 英文关键词 | Abundance; Coevolution; Competition; Distribution; Diversification; Niche; Pathogen; Population; Speciation; Taxon cycle |
| 学科领域 | abundance; coevolution; phylogenetics; phylogeography; range expansion; spatial distribution; speciation (biology); species richness; biodiversity; biological model; host pathogen interaction; mutation; phylogeny; phylogeography; population density; population dynamics; species differentiation; species extinction; Biodiversity; Extinction, Biological; Genetic Speciation; Host-Pathogen Interactions; Models, Biological; Mutation; Phylogeny; Phylogeography; Population Density; Population Dynamics |
| 语种 | 英语 |
| scopus关键词 | abundance; coevolution; phylogenetics; phylogeography; range expansion; spatial distribution; speciation (biology); species richness; biodiversity; biological model; host pathogen interaction; mutation; phylogeny; phylogeography; population density; population dynamics; species differentiation; species extinction; Biodiversity; Extinction, Biological; Genetic Speciation; Host-Pathogen Interactions; Models, Biological; Mutation; Phylogeny; Phylogeography; Population Density; Population Dynamics |
| 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/118719 |
| 作者单位 | Department of Biology, University of Missouri-St. Louis, One University Boulevard, St. Louis, MO 63121-4499, United States |
| 推荐引用方式 GB/T 7714 | Ricklefs R.E.. Intrinsic dynamics of the regional community[J],2015,18(6). |
| APA | Ricklefs R.E..(2015).Intrinsic dynamics of the regional community.Ecology Letters,18(6). |
| MLA | Ricklefs R.E.."Intrinsic dynamics of the regional community".Ecology Letters 18.6(2015). |
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