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Global protected area expansion is compromised by projected land-use and parochialism

机译:预计的土地利用和偏狭主义影响了全球保护区的扩张

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摘要

保护区的设立旨在减轻人为因素如生境丧失对生物多样性造成的压力。为此,一个国际认同的目标是,到2020年,将保护区网络扩大到覆盖世界陆地面积的17%。但生物多样性在不同国家和不同生境之间是不均匀分布的,这便提出了应当对哪些区域予以保护、以产生最大效果的问题。Federico Montesino Pouzols等人发现,通过国际协调行动将保护区网络扩大到17%这个目标,可能会使受到保护的物种分布范围和生态区平均增大三倍。然而,在某个国家内所进行的优化效率就要低很多。而且,如果将所预测的2040年以前的土地利用变化和由此造成的生境丧失考虑进去,要维持当前的保护水平将是不可行的,超过1000个濒危物种的分布范围将会减小50%以上。因此,作者提出,要实现有效的生物多样性保护,土地利用政策和保护区决策必须在国际层面上予以协调。%Protected areas are one of the main tools for halting the continuing global biodiversity crisis caused by habitat loss, fragmentation and other anthropogenic pressures. According to the Aichi Biodiversity Target 11 adopted by the Convention on Biological Diversity, the protected area network should be expanded to at least 17% of the terrestrial world by 2020. To maximize conservation outcomes, it is crucial to identify the best expansion areas. Here we show that there is a very high potential to increase protection of ecoregions and vertebrate species by expanding the protected area network, but also identify considerable risk of ineffective outcomes due to land-use change and uncoordinated actions between countries. We use distribution data for 24, 757 terrestrial vertebrates assessed under the International Union for the Conservation of Nature (IUCN) 'red list of threatened species', and terrestrial ecoregions (827), modified by land-use models for the present and 2040, and introduce techniques for global and balanced spatial conservation prioritization. First, we show that with a coordinated global protected area network expansion to 17% of terrestrial land, average protection of species ranges and ecoregions could triple. Second, if projected land-use change by 2040 takes place, it becomes infeasible to reach the currently possible protection levels, and over 1, 000 threatened species would lose more than 50% of their present effective ranges worldwide. Third, we demonstrate a major efficiency gap between national and global conservation priorities. Strong evidence is shown that further biodiversity loss is unavoidable unless international action is quickly taken to balance land-use and biodiversity conservation. The approach used here can serve as a framework for repeatable and quantitative assessment of efficiency, gaps and expansion of the global protected area network globally, regionally and nationally, considering current and projected land-use pressures.
机译:保护区的设立旨在减轻人为因素如生境丧失对生物多样性造成的压力。为此,一个国际认同的目标是,到2020年,将保护区网络扩大到覆盖世界陆地面积的17%。但生物多样性在不同国家和不同生境之间是不均匀分布的,这便提出了应当对哪些区域予以保护、以产生最大效果的问题。Federico Montesino Pouzols等人发现,通过国际协调行动将保护区网络扩大到17%这个目标,可能会使受到保护的物种分布范围和生态区平均增大三倍。然而,在某个国家内所进行的优化效率就要低很多。而且,如果将所预测的2040年以前的土地利用变化和由此造成的生境丧失考虑进去,要维持当前的保护水平将是不可行的,超过1000个濒危物种的分布范围将会减小50%以上。因此,作者提出,要实现有效的生物多样性保护,土地利用政策和保护区决策必须在国际层面上予以协调。%Protected areas are one of the main tools for halting the continuing global biodiversity crisis caused by habitat loss, fragmentation and other anthropogenic pressures. According to the Aichi Biodiversity Target 11 adopted by the Convention on Biological Diversity, the protected area network should be expanded to at least 17% of the terrestrial world by 2020. To maximize conservation outcomes, it is crucial to identify the best expansion areas. Here we show that there is a very high potential to increase protection of ecoregions and vertebrate species by expanding the protected area network, but also identify considerable risk of ineffective outcomes due to land-use change and uncoordinated actions between countries. We use distribution data for 24, 757 terrestrial vertebrates assessed under the International Union for the Conservation of Nature (IUCN) 'red list of threatened species', and terrestrial ecoregions (827), modified by land-use models for the present and 2040, and introduce techniques for global and balanced spatial conservation prioritization. First, we show that with a coordinated global protected area network expansion to 17% of terrestrial land, average protection of species ranges and ecoregions could triple. Second, if projected land-use change by 2040 takes place, it becomes infeasible to reach the currently possible protection levels, and over 1, 000 threatened species would lose more than 50% of their present effective ranges worldwide. Third, we demonstrate a major efficiency gap between national and global conservation priorities. Strong evidence is shown that further biodiversity loss is unavoidable unless international action is quickly taken to balance land-use and biodiversity conservation. The approach used here can serve as a framework for repeatable and quantitative assessment of efficiency, gaps and expansion of the global protected area network globally, regionally and nationally, considering current and projected land-use pressures.

著录项

  • 来源
    《Nature》 |2014年第7531期|383-386B1|共5页
  • 作者单位

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland,Rutherford Appleton Laboratory, Science & Technology Facilities Council, Harwell Oxford Campus, Didcot OX11 0QX, UK;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland,Department of Geosciences and Geography, University of Helsinki, PO Box 64(Gustaf Haellstroemin katu 2a), FI-00014 Helsinki, Finland;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland,Department of Life Sciences, University of KwaZulu-Natal, University Road, Private Bag X54001, Durban 4000, South Africa;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland,Regional Council of Helsinki-Uusimaa, Esterinportti 2 B, FI-00240 Helsinki, Finland;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland;

    Department of Geosciences and Geography, University of Helsinki, PO Box 64(Gustaf Haellstroemin katu 2a), FI-00014 Helsinki, Finland;

    Institute for Environmental Studies, VU University Amsterdam, De Boelelaan 1087, 1081 HV Amsterdam, The Netherlands;

    Finnish Centre of Excellence in Metapopulation Biology, Department of Biosciences, Biocenter 3, University of Helsinki, PO Box 65 (Viikinkaari 1), FI-00014 Helsinki, Finland;

  • 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);
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  • 正文语种 eng
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