| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1098/rsif.2010.0111 |
| Food-web structure in low- and high-dimensional trophic niche spaces. | |
| Rossberg AG; Brannstrom Å; Dieckmann U | |
| 发表日期 | 2010 |
| 出处 | Interface 7 (53): 1735-1743 |
| 出版年 | 2010 |
| 语种 | 英语 |
| 摘要 | A question central to modelling and, ultimately, managing food webs concerns the dimensionality of trophic niche space, that is, the number of independent traits relevant for determining consumer-resource links. Food-web topologies can often be interpretedby assuming resource traits to be specified by points along a line and each consumer's diet to be given by resources contained in an interval on this line.This phenomenon, called intervality, has been known for 30 years and is widely acknowledged to indicate that trophic niche space is close to one-dimensioal. We show that the degrees of intervality observed in nature can be reproduced in arbitrary-dimensional trophic niche spaces, provided that the processe of evolutionary diversification and adaptation are taken into account. Contrary to expectations, intervality is least pronounced at intermediate dimensins and steadily improves towards lower- and higher-dimensional trophic niche spaces. |
| 主题 | Evolution and Ecology (EEP) |
| 关键词 | Evolution Intervality Moran process Ornstein-Uhlenbeck process Phylogenetic correlations Trait matching |
| URL | http://pure.iiasa.ac.at/id/eprint/9169/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/129072 |
| 推荐引用方式 GB/T 7714 | Rossberg AG,Brannstrom Å,Dieckmann U. Food-web structure in low- and high-dimensional trophic niche spaces.. 2010. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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