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灭绝. 灭绝. 灭绝. 这就是灭绝. 在现代海洋中评估灭绝风险的古生物学基线

Seth Finnegan¹, Sean C Anderson², Paul G Harnik³

¹Department of Integrative Biology, University of California, Berkeley, CA 94720, USA. sethf@berkeley.edu.

Science (New York, N.Y.)

|May 2, 2015

概括

使用分类学特征和地理范围,可以预测海洋灭绝风险,热带沿海地区显示出高脆弱性. 这项研究为了解当前的海洋生物多样性威胁提供了基础.

科学领域:

古生物学的古生物学
海洋生物学海洋生物学
保护科学保护科学

背景情况:

海洋种群面临着重大的人为威胁,但它们的灭绝脆弱性尚未完全理解.
化石记录为过去的灭绝提供了宝贵的见解,有助于预测未来的生物反应.

研究的目的:

用古生物学校准模型评估现代海洋属的灭绝风险.
确定具有高度的本质风险属的地理区域.
评估人类活动和气候变化对这些脆弱地区的影响.

主要方法:

对超过2300万年的化石记录进行分析,以确定灭绝风险的一致预测因素.
基于古生物学数据的内在风险模型的开发,用于现代海洋物种.
绘制具有高内在风险的属的地理分布图.

主要成果:

在2300万年前,分类学成员和地理范围的大小是六个主要海洋分类学群体灭绝风险的一致预测因素.
内在风险模型确定了特定的沿海生物地理省份,其中存在高度的脆弱动物群.
受人类活动或气候变化影响不成比例的地区,并拥有高内在风险动物群,往往位于热带地区.

结论:

从古生物学数据中得出的内在风险,为评估当前的海洋生物多样性威胁提供了重要的人类前基线.
热带海洋生态系统可能特别容易受到未来的灭绝,因为人类影响或气候变化地区的高内在风险动物群集中.
了解这些长期模式对于有效的海洋保护战略至关重要.

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