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来源类型 | Article |
规范类型 | 其他 |
DOI | 10.1073/pnas.0737918100 |
Floating plant dominance as a stable state. | |
Scheffer M; Szabo S; Gragnani A; Nes EH van; Rinaldi S; Kautsky N; Norberg J; Roijackers RMM | |
发表日期 | 2003 |
出处 | Proceedings of the National Academy of Sciences 100 (7): 4040-4045 |
出版年 | 2003 |
语种 | 英语 |
摘要 | Invasion by mats of free-floating plants is among the most important threats to the functioning and biodiversity of freshwater ecosystems ranging from temperate ponds and ditches to tropical lakes. Dark, anoxic conditions under thick floating-plant cover leave little opportunity for animal or plant life, and they can have large negative impacts on fisheries and navigation in tropical lakes. Here, we demonstrate that floating-plant dominance can be a self-stabilizing ecosystem state, which may explain its notorious persistence in many situations. Our results, based on experiments, field data, and models, represent evidence for alternative domains of attraction in ecosystems. An implication of our findings is that nutrient enrichment reduces the resilience of freshwater systems against a shift to floating-plant dominance. On the other hand, our results also suggest that a single drastic harvest of floating plants can induce a permanent shift to an alternative state dominated by rooted, submerged growth forms. |
主题 | Adaptive Dynamics Network (ADN) |
URL | http://pure.iiasa.ac.at/id/eprint/6811/ |
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/128175 |
推荐引用方式 GB/T 7714 | Scheffer M,Szabo S,Gragnani A,et al. Floating plant dominance as a stable state.. 2003. |
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 | ||
Floating%20plant%20d(249KB) | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 |
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