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相关概念视频

Sustainable Development01:43

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As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
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There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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共享治理提高了海洋保护区的有效性.

Andrea Mast1, David Gill2, Gabby N Ahmadia3

  • 1Marine Affairs, Dalhousie University, Halifax, Nova Scotia, Canada.

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此摘要是机器生成的。

具有共享治理的海洋保护区 (MPA) 的鱼类生物量显著增加. 涉及不同利益相关者的协作管理是成功实现海洋保护目标的关键.

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科学领域:

  • 海洋保护科学 海洋保护科学
  • 生态系统管理 生态系统管理
  • 环境治理 环境治理

背景情况:

  • 海洋保护区 (MPA) 是沿海资源管理和保护的关键工具.
  • 了解MPA内部不同治理结构的有效性是有限的.
  • 现有的研究往往忽视了与各种制度安排相关的生态结果.

研究的目的:

  • 根据MPA的治理类别,比较MPA的生态表现.
  • 调查MPA治理类型与鱼类生物量之间的关系.
  • 为旨在扩大海洋保护区覆盖范围的全球努力提供信息.

主要方法:

  • 利用了217个全球MPA的独特数据集,包括国际自然保护联盟 (IUCN) 的治理类别.
  • 分析了生态结果,特别关注鱼类生物质.
  • 采用统计分析来比较治理方法并确定重要因素.

主要成果:

  • 与国家管理的海洋保护区相比,具有共享治理安排的海洋保护区具有98%更高的鱼类生物质的可能性.
  • 较古老的海洋保护区,高GDP国家的海洋保护区以及拥有较大禁捕区的海洋保护区也呈现出较高的鱼类生物质量.
  • 涉及多个政府和非政府参与者的共同治理与生态成功有积极的相关性.

结论:

  • 分享和分散的治理模式提高了海洋保护区在实现保护成果方面的有效性.
  • 为了成功实施海洋保护区,多方利益相关者的参与至关重要,特别是在海洋保护全球目标方面.
  • 未来的海洋保护区战略应优先考虑协作管理结构,以最大限度地提高生态效益.