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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.<\/jats:p>","DOI":"10.1073\/pnas.1207509109","type":"journal-article","created":{"date-parts":[[2012,8,14]],"date-time":"2012-08-14T02:37:49Z","timestamp":1344911869000},"page":"14052-14057","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":227,"title":["Climate-driven regime shifts in Arctic marine benthos"],"prefix":"10.1073","volume":"109","author":[{"given":"Susanne","family":"Kortsch","sequence":"first","affiliation":[{"name":"Department of Arctic and Marine Biology, University of Troms\u00f8, N-9037, Norway;"},{"name":"Department of Arctic Biology, University Centre in Svalbard, N-9171, Longyearbyen, Norway;"}]},{"given":"Raul","family":"Primicerio","sequence":"additional","affiliation":[{"name":"Department of Arctic and Marine Biology, University of Troms\u00f8, N-9037, Norway;"}]},{"given":"Frank","family":"Beuchel","sequence":"additional","affiliation":[{"name":"Akvaplan-Niva, Fram centre, N-9296, Troms\u00f8, Norway; and"}]},{"given":"Paul E.","family":"Renaud","sequence":"additional","affiliation":[{"name":"Department of Arctic Biology, University Centre in Svalbard, N-9171, Longyearbyen, Norway;"},{"name":"Akvaplan-Niva, Fram centre, N-9296, Troms\u00f8, Norway; and"}]},{"given":"Jo\u00e3o","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 OWA, United Kingdom"}]},{"given":"Ole J\u00f8rgen","family":"L\u00f8nne","sequence":"additional","affiliation":[{"name":"Department of Arctic Biology, University Centre in Svalbard, N-9171, Longyearbyen, Norway;"}]},{"given":"Bj\u00f8rn","family":"Gulliksen","sequence":"additional","affiliation":[{"name":"Department of Arctic and Marine Biology, University of Troms\u00f8, N-9037, Norway;"},{"name":"Department of Arctic Biology, University Centre in Svalbard, N-9171, Longyearbyen, Norway;"}]}],"member":"341","published-online":{"date-parts":[[2012,8,13]]},"reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0606291103"},{"key":"e_1_3_3_2_2","doi-asserted-by":"crossref","unstructured":"JC Comiso CL Parkinson R Gertsen L Stock Accelerated decline in the Arctic sea ice cover. 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