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Combating ecosystem collapse from the tropics to the Antarctic

Bergstrom, D.M., Wienecke, B.C., Hoff, J., Hughes, L., Lindenmayer, D.., 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., McGeoch, M.A., Melbourne‐Thomas, J., Morgain, R., Nicholson, E., Prober, S.M., Raymond, B., Ritchie, E.G., Robinson, S.A., Ruthrof, K.X., Setterfield, S.A., Sgrò, C.M., Stark, J.S., Travers, T., Trebilco, R., Ward, D.F.L., Wardle, G.M., Williams, K.J., Zylstra, P.J. and Shaw, J.D. (2021) Combating ecosystem collapse from the tropics to the Antarctic. Global Change Biology . Early View.

Free to read: https://doi.org/10.1111/gcb.15539
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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 km2, 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.

Item Type: Journal Article
Murdoch Affiliation(s): Environmental and Conservation Sciences
Publisher: Blackwell Publishing Ltd
Copyright: © 2021 John Wiley & Sons Ltd
URI: http://researchrepository.murdoch.edu.au/id/eprint/60021
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