物种消失后生态系统快速恢复的误解
问题概述
许多评论者指出，公众和决策者普遍认为生态系统在物种消失后会快速回弹，但实际上恢复可能需要数百万年，或因入侵物种而永久改变结构，导致保护决策可能基于错误的预期。
痛点标签
- 假设生态系统会迅速回到均衡状态，忽略了长期的结构性变化。
- 北美鳕鱼渔业在监管后未恢复，转而被其他物种占据，导致种群长期处于低水平。
- 即使森林砍伐百年后，物种丰富度和丰度仍低于未砍伐林地，显示恢复缓慢。
待验证问题
- 你是否认为生态系统在物种消失后能快速恢复？你认为合理的恢复时间是多久？
- 你是否在实际项目或政策中遇到过因低估生态恢复时间而导致的问题？
- 一个能提供长期生态恢复模型的工具，是否能帮助你更好地进行规划或决策？
证据
原话
On this topic, I can never end recommending Adam Curtis's series "All Watched Over by Machines of Loving Grace", and on this topic of "bounce back" the second episode in that series. The concept of "natural equilibrium" is a 1950s cybernetic machine fantasy projected onto the natural world rather than an accurate reflection of ecological reality.
原话
I think what happened to the cod fishery off North America is really interesting. They overfished the cod then decided to regulate the fishery to let the population come back. But it never recovered - the cod population is stable but at a much lower number.
原话
I had always assumed this, and my idea of nature bouncing back was more on the millions of years time scale as evolution would result in the refilling of empty ecological niches.
事实
Here's a study from the southern Appalachian Mountains that found that even in forests that were logged over 100 years ago, species richness and abundance was still lower than in forests that had never been logged: https://researchgate.net/publication/248428489_Centuries/...
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