| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1007/s00285-010-0383-3 |
| Rigorous conditions for food-web intervality in high-dimensional trophic niche spaces. | |
| Brannstrom Å; Carlsson L; Rossberg AG | |
| 发表日期 | 2011 |
| 出处 | Journal of Mathematical Biology 63 (3): 575-592 |
| 出版年 | 2011 |
| 语种 | 英语 |
| 摘要 | Food webs represent trophic (feeding) interactions in ecosystems. Since the late 1970s, it has been recognized that food-webs have a surprisingly close relationship to interval graphs. One interpretation of food-web intervality is that trophic niche space is low-dimensional, meaning that the trophic character of a species can be expressed by a single or at most a few quantitative traits. In a companion paper we demonstrated, by simulating a minimal food-web model, that food webs are also expected to be interval when niche-space is high-dimensional. Here we characterize the fundamental mechanisms underlying this phenomenon by proving a set of rigorous conditions for food-web intervality in high-dimensional niche spaces. Our results apply to a large class of food-web models, including the special case previously studied numerically. |
| 主题 | Evolution and Ecology (EEP) |
| 关键词 | Branching process Consecutive ones property COP Ecological model Food web Intervality Ornstein-Uhlenbeck process Ultrametric |
| URL | http://pure.iiasa.ac.at/id/eprint/9592/ |
| 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/129304 |
| 推荐引用方式 GB/T 7714 | Brannstrom Å,Carlsson L,Rossberg AG. Rigorous conditions for food-web intervality in high-dimensional trophic niche spaces.. 2011. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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