Article Synopsis

  • Ecosystem collapse poses a serious threat to biodiversity and human health, driven by global climate change and regional human activities.
  • Current research on 19 ecosystems, from Australia’s coral reefs to Antarctica, shows that these ecosystems are responding to various pressures in different ways, categorized into four profiles.
  • A proposed three-step framework (Awareness, Anticipation, and Action) aims to facilitate strategic management and reduce further degradation of these vital ecosystems to protect our future.

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Article Abstract

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° of latitude across 7.7 M km , 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.

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http://dx.doi.org/10.1111/gcb.15539DOI Listing

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