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The future of the northeast Atlantic benthic flora in a high CO2 world

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Brodie, Juliet et Williamson, Christopher J. et Smale, Dan A. et Kamenos, Nicholas A. et Mieszkowska, Nova et Santos, Rui et Cunliffe, Michael et Steinke, Michael et Yesson, Christopher et Anderson, Kathryn M. et Asnaghi, Valentina et Brownlee, Colin et Burdett, Heidi L. et Burrows, Michael T. et Collins, Sinead et Donohue, Penelope J. C. et Harvey, Ben et Foggo, Andrew et Noisette, Fanny et Nunes, Joana et Ragazzola, Federica et Raven, John A. et Schmidt, Daniela N. et Suggett, David et Teichberg, Mirta et Hall‐Spencer, Jason M. (2014). The future of the northeast Atlantic benthic flora in a high CO2 world. Ecology and Evolution, 4 (13). p. 2787-2798.

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Résumé

Seaweed and seagrass communities in the northeast Atlantic have been profoundly impacted by humans, and the rate of change is accelerating rapidly due to runaway CO2 emissions and mounting pressures on coastlines associated with human population growth and increased consumption of finite resources. Here, we predict how rapid warming and acidification are likely to affect benthic flora and coastal ecosystems of the northeast Atlantic in this century, based on global evidence from the literature as interpreted by the collective knowledge of the authorship. We predict that warming will kill off kelp forests in the south and that ocean acidification will remove maerl habitat in the north. Seagrasses will proliferate, and associated epiphytes switch from calcified algae to diatoms and filamentous species. Invasive species will thrive in niches liberated by loss of native species and spread via exponential development of artificial marine structures. Combined impacts of seawater warming, ocean acidification, and increased storminess may replace structurally diverse seaweed canopies, with associated calcified and noncalcified flora, with simple habitats dominated by noncalcified, turf‐forming seaweeds. -- Keywords : Calcified algae ; Climate change ; Invasive species ; Macroalgae ; Microphytobenthos ; Seagrasses ; Volatile gases.

Type de document : Article
Validation par les pairs : Oui
Information complémentaire : CC BY 3.0
Départements et unités départementales : Institut des sciences de la mer de Rimouski (ISMER)
Déposé par : DIUQAR UQAR
Date de dépôt : 09 mars 2020 17:54
Dernière modification : 09 mars 2020 17:54
URI : http://semaphore.uqar.ca/id/eprint/1594

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