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Global ocean convey...
Global ocean conveyor lowers extinction risk in the deep sea
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Henry, L. A. (author)
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Frank, N. (author)
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Hebbeln, D. (author)
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Wienberg, C. (author)
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Robinson, L. (author)
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van de Flierdt, T. (author)
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- Dahl, Mikael, 1976 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory
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Douarin, M. (author)
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Morrison, C. L. (author)
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Correa, M. L. (author)
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Rogers, A. D. (author)
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Ruckelshausen, M. (author)
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Roberts, J. M. (author)
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
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In: Deep Sea Research Part I: Oceanographic Research Papers. - : Elsevier BV. - 0967-0637 .- 1879-0119. ; 88, s. 8-16
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Abstract
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- General paradigms of species extinction risk are urgently needed as global habitat loss and rapid climate change threaten Earth with what could be its sixth mass extinction. Using the stony coral Lophelia pertusa as a model organism with the potential for wide larval dispersal, we investigated how the global ocean conveyor drove an unprecedented post-glacial range expansion in Earth's largest biome, the deep sea. We compiled a unique ocean-scale dataset of published radiocarbon and uranium-series dates of fossil corals, the sedimentary protactinium-thorium record of Atlantic meridional overturning circulation (AMOC) strength, authigenic neodymium and lead isotopic ratios of circulation pathways, and coral biogeography, and integrated new Bayesian estimates of historic gene flow. Our compilation shows how the export of Southern Ocean and Mediterranean waters after the Younger Dryas 11.6 kyr ago simultaneously triggered two dispersal events in the western and eastern Atlantic respectively. Each pathway injected larvae from refugia into ocean currents powered by a re-invigorated AMOC that led to the fastest postglacial range expansion ever recorded, covering 7500 km in under 400 years. In addition to its role in modulating global climate, our study illuminates how the ocean conveyor creates broad geographic ranges that lower extinction risk in the deep sea. (C) 2014 The Authors. Published by Elsevier Ltd.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- Atlantic meridional overturning circulation; Deep sea; Climate change; Extinction; Larval dispersal; Connectivity
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Henry, L. A.
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Frank, N.
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Hebbeln, D.
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Wienberg, C.
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Robinson, L.
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van de Flierdt, ...
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show more...
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Dahl, Mikael, 19 ...
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Douarin, M.
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Morrison, C. L.
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Correa, M. L.
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Rogers, A. D.
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Ruckelshausen, M ...
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Roberts, J. M.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Deep Sea Researc ...
- By the university
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University of Gothenburg