一个关于物种恢复的全球指标
H Resit Akçakaya1,2, Michael Hoffmann2,3, E J Milner-Gulland2,4
1Department of Ecology and Evolution, Stony Brook University, Stony Brook, New York, USA.
概括
一个新的物种恢复的绿色状态指数 (GSI) 追踪物种恢复,这是生物多样性的关键目标. 该指数显示,物种远远没有完全恢复,并且正在远离它,强调需要采取保护行动.
科学领域:
- 保护科学 保护科学
- 生物多样性监测 生物多样性监测
- 生态生态学 生态生态学
背景情况:
- 全球生物多样性目标需要物种恢复指标,这是目前缺乏的指标.
- 现有的指标,如IUCN红色名单指数 (RLI) 和生活行星指数 (LPI),并没有专门追踪物种恢复.
- 生物多样性公约的昆明-蒙特利尔全球生物多样性框架 (GBF) 强调物种的恢复.
研究的目的:
- 开发和介绍物种恢复的绿色状态指数 (GSI) 的方法.
- 创建一个全球指标,跟踪物种恢复的进展,与生物多样性目标保持一致.
- 通过专注于恢复状态,提供补充现有指标的指标.
主要方法:
- 根据IUCN的物种绿色状态 (GSS) 制定了物种恢复的绿色状态指数 (GSI).
- 纳入的方法反映了GSS评估中的不确定性.
- 设计了方法来按国家对物种恢复的贡献分类全球GSI值.
主要成果:
- 将GSI应用于一组试验物种,显示它们还没有完全恢复到一半.
- 自20世纪中叶以来,被测试的物种越来越远于完全恢复.
- 全球生物多样性指标提供了一种超越灭绝风险和人口丰度的生物多样性趋势的衡量标准.
结论:
- 全球生物多样性指标是物种恢复的强有力的全球指标,填补了生物多样性监测的关键缺口.
- GSI补充了RLI和LPI,通过测量生物多样性状况的不同方面.
- 到2030年,采用采样方法来部署GSI是可行的,尽管需要扩大对完整分类组的努力.
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