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Long-term relationships between ecological stability and biodiversity in Phanerozoic reels

机译:生代轮盘生态稳定性与生物多样性之间的长期关系

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摘要

High biodiversity has been shown to enhance ecological stability on small spatial scales and over intervals of weeks to decades. It remains unclear, however, whether this diversity-stability relationship can be scaled up to regional scales, or to longer timescales. Without empirical validation at larger scales, the implications of the diversity-stability relationship for both ecology and long-term conservation strategies cannot readily be resolved. Here I show that in biogenic reefs, ecological stability is related to taxonomic diversity on million-year timescales. The higher the mean reef diversity in a particular time interval, the smaller the change in skeletal density, style of reef building and biotic reef types in the subsequent time interval. Because the relationships apply to a wide spectrum of disturbance regimes and reef types, these results support the hypothesis that species richness itself promotes ecological stability. Carbonate production by reefs, while closely correlated with reef diversity without temporal lag, is not stabilized by reef diversity over these long timescales. This suggests that ecological stability and productivity may be decoupled in natural ecosystems.
机译:高生物多样性已显示出可以在较小的空间规模上以及数周至数十年的时间间隔内增强生态稳定性。但是,这种多样性与稳定性之间的关系是否可以扩大到区域范围还是更长的时间范围尚不清楚。如果没有较大规模的经验验证,就很难解决多样性-稳定性关系对生态和长期保护战略的影响。我在这里表明,在生物礁中,生态稳定性与百万年尺度上的生物分类多样性有关。在特定时间间隔内,平均礁石多样性越高,在随后的时间间隔内,骨骼密度,礁石建造风格和生物礁类型的变化就越小。由于这种关系适用于各种干扰机制和礁石类型,因此这些结果支持以下假设:物种丰富性本身可促进生态稳定性。珊瑚礁的碳酸盐产量虽然与珊瑚礁的多样性密切相关,没有时间滞后,但在这么长的时间范围内,珊瑚礁的多样性并不能使其稳定。这表明在自然生态系统中生态稳定性和生产力可能会脱钩。

著录项

  • 来源
    《Nature》 |2005年第7024期|p.410-413|共4页
  • 作者

    Wolfgang Kiessling;

  • 作者单位

    Museum of Natural History, Humboldt University Berlin, Invalidenstrasse 43, D-10115 Berlin, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然科学总论;
  • 关键词

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