Combating ecosystem collapse from the tropics to the Antarctic
Combating ecosystem collapse from the tropics to the Antarctic
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DOI：
10.1111/gcb.15539
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发表时间：
2021-02-25
影响因子：
11.6
通讯作者：
Shaw, Justine D.
中科院分区：
文献类型：
--
作者：
Bergstrom, Dana M.;Wienecke, Barbara C.;Shaw, Justine D.
在全球范围内，生态系统的崩溃--生态系统结构、组成和功能可能发生不可逆转的变化--危及生物多样性、人类健康和福祉。我们研究了从澳大利亚的珊瑚礁到南极洲陆地的19个生态系统的现状和最近的轨迹，这些生态系统横跨7.7亿公里(2)，横跨58度纬度。来自全球气候变化和地区性人类影响的压力，以慢性“压力”和/或急性“脉冲”的形式出现，导致生态系统崩溃。生态系统对5-17压力的响应可归类为四种崩溃剖面--突变、平稳、阶跃和波动。大范围生态系统崩溃的表现是对采取行动的必要性的强烈警告。我们提出了一个三步评估和管理框架(3AS路径意识、预期和行动)，以帮助战略和有效的缓解，以缓解进一步的退化，以帮助确保我们的未来。
Globally, collapse of ecosystems-potentially irreversible change to ecosystem structure, composition and function-imperils biodiversity, human health and well-being. We examine the current state and recent trajectories of 19 ecosystems, spanning 58 degrees of latitude across 7.7 M km(2), from Australia's coral reefs to terrestrial Antarctica. Pressures from global climate change and regional human impacts, occurring as chronic 'presses' and/or acute 'pulses', drive ecosystem collapse. Ecosystem responses to 5-17 pressures were categorised as four collapse profiles-abrupt, smooth, stepped and fluctuating. The manifestation of widespread ecosystem collapse is a stark warning of the necessity to take action. We present a three-step assessment and management framework (3As Pathway Awareness, Anticipation and Action) to aid strategic and effective mitigation to alleviate further degradation to help secure our future.