| 来源类型 | Monograph (IIASA Working Paper) |
| 规范类型 | 论文 |
| On the Dominance of Filamentous Blue-Green Algae in Shallow Lakes. | |
| Scheffer M; Rinaldi S; Mur L | |
| 发表日期 | 1994 |
| 出版者 | IIASA, Laxenburg, Austria: WP-94-067 |
| 出版年 | 1994 |
| 语种 | 英语 |
| 摘要 | The algal community of eutrophic shallow lakes is often dominated by filamentous cyanobacteria. In this paper we follow two independent approaches to show that this state should be an alternative equilibrium over a range of conditions to the state dominated by green algae and diatoms. First, we analyze the patterns of blue-green dominance observed in the field, and show that in view of the dynamical systems theory, those patterns imply that the algal community must be a hysteretic system. Then, we construct a minimal competition model to show that hysteresis should, in fact, be expected from differences in physiology between cyanobacteria and algae measured in the laboratory. The basic mechanism behind this is that cyanobacteria are the superior competitors under conditions of low light, but also promote such conditions as they cause a higher turbidity per unit of phosphorus than other algae. This theory of hysteresis explains why blue-green dominance is so resistant to restoration efforts by means of nutrient reduction. It also suggests that a shock therapy, such as temporary flushing, can suffice to get rid of blue-greens. |
| 主题 | Dynamic Systems (DYN) |
| URL | http://pure.iiasa.ac.at/id/eprint/4144/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/124266 |
| 推荐引用方式 GB/T 7714 | Scheffer M,Rinaldi S,Mur L. On the Dominance of Filamentous Blue-Green Algae in Shallow Lakes.. 1994. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| WP-94-067.pdf（553KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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