| Literature DB >> 33629799 |
Dana M Bergstrom1,2, Barbara C Wienecke1, John van den Hoff1, Lesley Hughes3, David B Lindenmayer4, Tracy D Ainsworth5, Christopher M Baker6,7,8, Lucie Bland9, David M J S Bowman10, Shaun T Brooks11, Josep G Canadell12, Andrew J Constable13, Katherine A Dafforn3, Michael H Depledge14, Catherine R Dickson15, Norman C Duke16, Kate J Helmstedt17, Andrés Holz18, Craig R Johnson11, Melodie A McGeoch15, Jessica Melbourne-Thomas13,19, Rachel Morgain4, Emily Nicholson20, Suzanne M Prober21, Ben Raymond1,11, Euan G Ritchie20, Sharon A Robinson2,22, Katinka X Ruthrof23,24, Samantha A Setterfield25, Carla M Sgrò15, Jonathan S Stark1, Toby Travers11, Rowan Trebilco13,19, Delphi F L Ward11, Glenda M Wardle26, Kristen J Williams27, Phillip J Zylstra22,28, Justine D Shaw29.
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.Entities:
Keywords: adaptive management; climate change; ecosystem collapse; human impacts; pressures
Year: 2021 PMID： 33629799 DOI： 10.1111/gcb.15539
Source DB: PubMed Journal: Glob Chang Biol ISSN： 1354-1013 Impact factor: 10.863