Climate-driven regime shifts in Arctic marine benthos

Climate warming can trigger abrupt ecosystem changes in the Arctic. Despite the considerable interest in characterizing and understanding the ecological impact of rapid climate warming in the Arctic, few long time series exist that allow addressing these research goals. During a 30-y period (1980-20...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences of the United States of America. - National Academy of Sciences of the United States of America. - 109(2012), 35, Seite 14052-14057
1. Verfasser:	Kortsch, Susanne (VerfasserIn)
Weitere Verfasser:	Primicerio, Raul, Beuchel, Frank, Renaud, Paul E., Rodrigues, João, Lønne, Ole Jørgen, Gulliksen, Bjørn
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2012
Zugriff auf das übergeordnete Werk:	Proceedings of the National Academy of Sciences of the United States of America
Schlagworte:	Biological sciences Environmental studies Physical sciences Mathematics


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100	1		\|a Kortsch, Susanne \|e verfasserin \|4 aut
245	1	0	\|a Climate-driven regime shifts in Arctic marine benthos
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520			\|a Climate warming can trigger abrupt ecosystem changes in the Arctic. Despite the considerable interest in characterizing and understanding the ecological impact of rapid climate warming in the Arctic, few long time series exist that allow addressing these research goals. During a 30-y period (1980-2010) of gradually increasing seawater temperature and decreasing sea ice cover in Svalbard, we document rapid and extensive structural changes in the rocky-bottom communities of two Arctic fjords. The most striking component of the benthic reorganization was an abrupt fivefold increase in macroalgal cover in 1995 in Kongsfjord and an eightfold increase in 2000 in Smeerenburgfjord. Simultaneous changes in the abundance of benthic invertebrates suggest that the macroalgae played a key structuring role in these communities. The abrupt substantial, and persistent nature of the changes observed is indicative of a climate-driven ecological regime shift. The ecological processes thought to drive the observed regime shifts are likely to promote the borealization of these Arctic marine communities in the coming years.
540			\|a copyright © 1993-2008 National Academy of Sciences of the United States of America
650		4	\|a Biological sciences \|x Ecology \|x Population ecology \|x Synecology \|x Biocenosis \|x Aquatic communities
650		4	\|a Biological sciences \|x Biology \|x Botany \|x Marine botany \|x Phycology \|x Algae \|x Macroalgae
650		4	\|a Biological sciences \|x Ecology \|x Ecosystems \|x Aquatic ecosystems \|x Marine ecosystems
650		4	\|a Environmental studies \|x Environmental sciences \|x Climate change
650		4	\|a Biological sciences \|x Ecology \|x Aquatic ecology \|x Marine ecology
650		4	\|a Biological sciences \|x Ecology \|x Population ecology \|x Synecology
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Bodies of water \|x Fjords
650		4	\|a Mathematics \|x Pure mathematics \|x Discrete mathematics \|x Graph theory \|x Network theory \|x Community structure
650		4	\|a Biological sciences \|x Ecology \|x Ecosystems
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Bodies of water \|x Seas
655		4	\|a research-article
700	1		\|a Primicerio, Raul \|e verfasserin \|4 aut
700	1		\|a Beuchel, Frank \|e verfasserin \|4 aut
700	1		\|a Renaud, Paul E. \|e verfasserin \|4 aut
700	1		\|a Rodrigues, João \|e verfasserin \|4 aut
700	1		\|a Lønne, Ole Jørgen \|e verfasserin \|4 aut
700	1		\|a Gulliksen, Bjørn \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Proceedings of the National Academy of Sciences of the United States of America \|d National Academy of Sciences of the United States of America \|g 109(2012), 35, Seite 14052-14057 \|w (DE-627)254235379 \|w (DE-600)1461794-8 \|x 10916490 \|7 nnns
773	1	8	\|g volume:109 \|g year:2012 \|g number:35 \|g pages:14052-14057
856	4	0	\|u https://www.jstor.org/stable/41701641 \|3 Volltext
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