Biological ramifications of climate-change-mediated oceanic multi-stressors

Boyd, Philip W., Lennartz, Sinikka T., Glover, David M. and Doney, Scott C. (2015) Biological ramifications of climate-change-mediated oceanic multi-stressors Nature Climate Change, 5 (1). pp. 71-79. DOI 10.1038/NCLIMATE2441.

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Abstract

Climate change is altering oceanic conditions in a complex manner, and the concurrent amendment of multiple properties will modify environmental stress for primary producers. So far, global modelling studies have focused largely on how alteration of individual properties will affect marine life. Here, we use global modelling simulations in conjunction with rotated factor analysis to express model projections in terms of regional trends in concomitant changes to biologically influential multi-stressors. Factor analysis demonstrates that regionally distinct patterns of complex oceanic change are evident globally. Preliminary regional assessments using published evidence of phytoplankton responses to complex change reveal a wide range of future responses to interactive multi-stressors with <20–300% shifts in phytoplankton physiological rates, and many unexplored potential interactions. In a future ocean, provinces will encounter different permutations of change that will probably alter the dominance of key phytoplankton groups and modify regional productivity, ecosystem structure and biogeochemistry. Consideration of regionally distinct multi-stressor patterns can help guide laboratory and field studies as well as the interpretation of interactive multi-stressors in global models.

Document Type: Article
Additional Information: WOS:000346513900022
Keywords: PHYTOPLANKTON COMMUNITY; NITROGEN-FIXATION; SOUTHERN-OCEAN; IRON; TEMPERATURE; GROWTH; LIGHT; PROCHLOROCOCCUS; 21ST-CENTURY; RATIOS
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
Refereed: Yes
DOI etc.: 10.1038/NCLIMATE2441
ISSN: 1758-678X
Date Deposited: 15 Jan 2015 09:32
Last Modified: 24 Feb 2017 12:06
URI: http://eprints.uni-kiel.de/id/eprint/26955

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