• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nature >High plant diversity is needed to maintain ecosystem services
【24h】

High plant diversity is needed to maintain ecosystem services

机译：需要高度植物多样性来维持生态系统服务

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

Biodiversity is rapidly declining worldwide', and there is consensus that this can decrease ecosystem functioning and services~(2-7). It remains unclear, though, whether few~8 or many~9 of the species in an ecosystem are needed to sustain the provisioning of ecosystem services. It has been hypothesized that most species would promote ecosystem services if many times, places, functions and environmental changes were considered~9; however, no previous study has considered all of these factors together. Here we show that 84% of the 147 grassland plant species studied in 17 biodiversity experiments promoted ecosystem functioning at least once. Different species promoted ecosystem functioning during different years, at different places, for different functions and under different environmental change scenarios. Furthermore, the species needed to provide one function during multiple years were not the same as those needed to provide multiple functions within one year. Our results indicate that even more species will be needed to maintain ecosystem functioning and services than previously suggested by studies that have either (1) considered only the number of species needed to promote one function under one set of environmental conditions, or (2) separately considered the importance of biodiversity for providing ecosystem functioning across multiple years~(10-14), places15'16, functions~(1417'18) or environmental change scenarios~(12,19-22). Therefore, although species may appear functionally redundant when one function is considered under one set of environmental conditions~7, many species are needed to maintain multiple functions at multiple times and places in a changing world.
机译：全球范围内的生物多样性正在迅速下降”，人们普遍认为这会降低生态系统的功能和服务水平[2-7]。但是，尚不清楚是否需要维持一个生态系统中的物种约8个或9个。据推测，如果考虑许多次，地点，功能和环境变化，大多数物种将促进生态系统服务〜9；但是，以前没有研究将所有这些因素综合考虑。在这里，我们显示在17个生物多样性实验中研究的147种草地植物物种中，有84％至少促进了生态系统功能一次。不同物种促进了不同年份，不同地点，不同功能和不同环境变化情景下的生态系统功能。此外，在多年内提供一种功能所需的物种与在一年内提供多种功能所需的物种不同。我们的结果表明，与以前的研究建议相比，维持生态系统功能和服务所需的物种甚至更多（1）仅考虑在一组环境条件下促进一种功能所需的物种数量，或（2）单独考虑考虑了生物多样性对于提供多年生态系统功能的重要性〜（10-14），场所15'16，功能〜（1417'18）或环境变化场景〜（12,19-22）。因此，尽管当在一组环境条件下7考虑一种功能时，物种可能在功能上显得多余，但仍需要许多物种在不断变化的世界中的多个时间和多个位置维护多种功能。

著录项

  • 来源
    《Nature》 |2011年第7363期|p.199-202|共4页
  • 作者

    Forest Isbell; Vincent Calcagno; Andy Hector; John Connolly; W. Stanley Harpole; Peter B. Reich; Michael Scherer-Lorenzen; Bernhard Schmid; David Tilman; Jasper van Ruijven; Alexandra Weigelt; Brian J. Wilsey; Erika S. Zavaleta; Michel Loreau;

  • 作者单位

    Department of Biology, McGill University, Montreal, Quebec, H3A 1B1, Canada;

    Department of Biology, McGill University, Montreal, Quebec, H3A 1B1, Canada;

    Institute of Evolutionary Biology and Environmental Studies, University of Zurich, CH-8057 Zurich, Switzerland;

    UCD School of Mathematical Sciences, University College Dublin, Dublin 4, Ireland;

    Department of Ecology, Evolution, and Organismal Biology, lowa State University, Ames, Iowa 50011, USA;

    Department of Forest Resources, University of Minnesota, St Paul, Minnesota 55108, USA Hawkesbury Institute for the Environment, University of Western Sydney, Richmond, New South Wales 2753, Austral ia;

    Faculty of Biology, University of Freiburg, Geobotany, D-79104 Freiburg, Germany;

    Institute of Evolutionary Biology and Environmental Studies, University of Zurich, CH-8057 Zurich, Switzerland;

    Department of Ecology, Evolution, and Behavior, University of Minnesota, St Paul, Minnesota 55108, USA;

    Nature Conservation and Plant Ecology, Wageningen University, 6700 AAWageningen, The Netherlands;

    lnstitute of Biology I, University of Leipzig, 04103 Leipzig, Germany;

    Department of Ecology, Evolution, and Organismal Biology, lowa State University, Ames, Iowa 50011, USA;

    Environmental Studies Department, Universityof California, Santa Cruz, California 95064, USA;

    Department of Biology, McGill University, Montreal, Quebec, H3A 1B1, Canada;

  • 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
  • 关键词

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