• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Conservation Biology >Incorporating Climate and Ocean Change into Extinction Risk Assessments for 82 Coral Species
【24h】

Incorporating Climate and Ocean Change into Extinction Risk Assessments for 82 Coral Species

机译：将气候和海洋变化纳入82种珊瑚物种灭绝风险评估中

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Many marine invertebrate species facing potential extinction have uncertain taxonomies and poorly known demographic and ecological traits. Uncertainties are compounded when potential extinction drivers are climate and ocean changes whose effects on even widespread and abundant species are only partially understood. The U.S. Endangered Species Act mandates conservation management decisions founded on the extinction risk to species based on the best available science at the time of consideration-requiring prompt action rather than awaiting better information. We developed an expert-opinion threat-based approach that entails a structured voting system to assess extinction risk from climate and ocean changes and other threats to 82 coral species for which population status and threat response information was limited. Such methods are urgently needed because constrained budgets and manpower will continue to hinder the availability of desired data for many potentially vulnerable marine species. Significant species-specific information gaps and uncertainties precluded quantitative assessments of habitat loss or population declines and necessitated increased reliance on demographic characteristics and threat vulnerabilities at genus or family levels. Adapting some methods (e.g., a structured voting system) used during other assessments and developing some new approaches (e.g., integrated assessment of threats and demographic characteristics), we rated the importance of threats contributing to coral extinction risk and assessed those threats against population status and trend information to evaluate each species' extinction risk over the 21st century. This qualitative assessment resulted in a ranking with an uncertainty range for each species according to their estimated likelihood of extinction. We offer guidance on approaches for future biological extinction risk assessments, especially in cases of data-limited species likely to be affected by global-scale threats.
机译：许多面临灭绝危险的海洋无脊椎动物物种的分类法不明确，人口和生态特征鲜为人知。当潜在的灭绝驱动因素是气候和海洋变化时，其不确定性就变得更加复杂，而气候变化和海洋变化对甚至广泛和丰富物种的影响也只能被部分理解。 《美国濒临灭绝物种法案》要求在考虑时需要基于最佳现有科学，基于对物种灭绝风险的保护管理决定，而不是等待更好的信息。我们开发了一种基于专家意见的基于威胁的方法，该方法需要一种结构化的投票系统，以评估由于人口状况和威胁响应信息受到限制的82种珊瑚物种因气候和海洋变化以及其他威胁而造成的灭绝风险。由于预算和人力有限，将继续阻碍许多潜在脆弱海洋物种所需数据的获取，因此迫切需要这种方法。特定物种的重大信息鸿沟和不确定性妨碍了对栖息地丧失或人口减少的定量评估，因此必须更多地依赖人口统计特征和属或家庭级别的威胁脆弱性。适应其他评估中使用的某些方法（例如结构化的投票系统）并开发一些新方法（例如，对威胁和人口特征的综合评估），我们对威胁造成珊瑚灭绝风险的重要性进行了评估，并评估了这些威胁种群状况的威胁和趋势信息，以评估21世纪每个物种的灭绝风险。该定性评估根据每个物种灭绝的可能性对每个物种的不确定性范围进行了排名。我们提供有关未来生物灭绝风险评估方法的指南，尤其是在数据有限的物种可能受到全球规模威胁影响的情况下。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号