National Science Foundation Grant Numbers: 0966472, 1738104, 1832483; Australian Academy of Science, Australian Antarctic Division, The University of Queensland, Australian Government Grant Number: DE200101791, Australian Antarctic Program Grant Number: 4312
Global Change Biology
Global environmental change, Ecological disturbances, Environmental disasters, Climatic changes, Adaptive natural resource management, Biodiversity, Global warming, Environmental protection
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.
This is the post-print version; the final version is available from the publisher, © 2021 John Wiley & Sons Ltd:
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Bergstrom, D. M., Wienecke, B. C., Hoff, J., Hughes, L., Lindenmayer, D. B., Ainsworth, T. D., Baker, C. M., Bland, L., Bowman, D. M. J. S., Brooks, S. T., Canadell, J. G., Constable, A. J., Dafforn, K. A., Depledge, M. H., Dickson, C. R., Duke, N. C., Helmstedt, K. J., Holz, A., Johnson, C. R., … Shaw, J. D. (2021). Combating ecosystem collapse from the tropics to the Antarctic. Global Change Biology, gcb.15539. https://doi.org/10.1111/gcb.15539