Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem
The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glacie...
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American Association for the Advancement of Science
2015
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 16704caa a22012977a 4500 | ||
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| 001 | PAPER-16764 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518204747.0 | ||
| 008 | 180614s2015 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-85039842569 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Sahade, R. | |
| 245 | 1 | 0 | |a Climate change and glacier retreat drive shifts in an Antarctic benthic ecosystem |
| 260 | |b American Association for the Advancement of Science |c 2015 | ||
| 270 | 1 | 0 | |m Sahade, R.; Inst. de Diversidad y Ecologia Animal Consejo Nacional de Investigaciones Cientificas y Tecnicas, Universidad Nacional de Córdoba (CONICET-UNC), Facultad de Ciencias Exactas, Físicas y Naturales, UNC, Avenida Vélez Sarsfield 299, Argentina; email: rsahade@efn.uncor.edu |
| 506 | |2 openaire |e Política editorial | ||
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| 520 | 3 | |a The Antarctic Peninsula (AP) is one of the three places on Earth that registered the most intense warming in the last 50 years, almost five times the global mean. This warming has strongly affected the cryosphere, causing the largest ice-shelf collapses ever observed and the retreat of 87% of glaciers. Ecosystem responses, although increasingly predicted, have been mainly reported for pelagic systems. However, and despite most Antarctic species being benthic, responses in the Antarctic benthos have been detected in only a few species, and major effects at assemblage level are unknown. This is probably due to the scarcity of baselines against which to assess change. We performed repeat surveys of coastal benthos in 1994, 1998, and 2010, analyzing community structure and environmental variables at King George Island, Antarctica. We report a marked shift in an Antarctic benthic community that can be linked to ongoing climate change. However, rather than temperature as the primary factor, we highlight the resulting increased sediment runoff, triggered by glacier retreat, as the potential causal factor. The sudden shift from a "filter feeders-ascidian domination" to a "mixed assemblage" suggests that thresholds (for example, of tolerable sedimentation) and alternative equilibrium states, depending on the reversibility of the changes, could be possible traits of this ecosystem. Sedimentation processes will be increasing under the current scenario of glacier retreat, and attention needs to be paid to its effects along the AP. © 2015 The Authors. |l eng | |
| 536 | |a Detalles de la financiación: 2Instituto, UNC, University of North Carolina | ||
| 536 | |a Detalles de la financiación: FCFM, Facultad de Ciencias Físicas y Matemáticas | ||
| 536 | |a Detalles de la financiación: CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas | ||
| 536 | |a Detalles de la financiación: NERC, Natural Environment Research Council | ||
| 536 | |a Detalles de la financiación: 5Department | ||
| 536 | |a Detalles de la financiación: AWI, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research | ||
| 536 | |a Detalles de la financiación: Universität Bremen | ||
| 536 | |a Detalles de la financiación: 1Instituto de Diversidad y Ecología Animal [Consejo Nacional de Investigaciones Científicas y Técnicas–Universidad Nacional de Córdoba (CONICET-UNC)], Facultad de Ciencias Exactas, Físicas y Naturales, UNC, Avenida Vélez Sarsfield 299, 5000 Córdoba, Argentina. 2Instituto de Ciencias, Universidad Nacional de General Sarmiento, Juan M. Gutiérrez 1150, B1613GSX Los Polvorines, Argentina. 3Instituto de Ecología y Desarrollo Sustentable, Universidad Nacional de Luján, Luján 6700, Argentina. 4Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky Straße 9-11, 26129 Oldenburg, Germany. 5Department of Geosciences, University of Bremen, Klagenfurter Straße (GEO), 28359 Bremen, Germany. 6Instituto Antártico Argentino, Balcarce 290, Ciudad Autónoma de Buenos Aires C1064AAF, Argentina. 7British Antarctic Survey, Natural Environment Research Council, Madingley, Road, Cambridge CB3 0ET, UK. 8Alfred Wegener Institut for Polar and Marine Research, Columbusstraße, 27568 Bremerhaven, Germany. *Corresponding author. E-mail: rsahade@efn.uncor.edu | ||
| 593 | |a Inst. de Diversidad y Ecologia Animal Consejo Nacional de Investigaciones Cientificas y Tecnicas, Universidad Nacional de Córdoba (CONICET-UNC), Facultad de Ciencias Exactas, Físicas y Naturales, UNC, Avenida Vélez Sarsfield 299, Córdoba, Argentina | ||
| 593 | |a Instituto de Ciencias, Universidad Nacional de General Sarmiento, Juan M. Gutiérrez 1150, Los Polvorines, Argentina | ||
| 593 | |a Instituto de Ecología y Desarrollo Sustentable, Universidad Nacional de Luján, Luján, Argentina | ||
| 593 | |a Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky Straße 9-11, Oldenburg, Germany | ||
| 593 | |a Department of Geosciences, University of Bremen, Klagenfurter Straße (GEO), Bremen, Germany | ||
| 593 | |a Instituto Antártico Argentino, Balcarce 290, Ciudad Autónoma de Buenos Aires, Argentina | ||
| 593 | |a British Antarctic Survey, Natural Environment Research Council, Madingley Road, Cambridge, United Kingdom | ||
| 593 | |a Alfred Wegener Institut for Polar and Marine Research, Columbusstraße, Bremerhaven, Germany | ||
| 690 | 1 | 0 | |a ECOLOGY |
| 690 | 1 | 0 | |a ECOSYSTEMS |
| 690 | 1 | 0 | |a ANTARCTIC BENTHOS |
| 690 | 1 | 0 | |a ANTARCTIC PENINSULA |
| 690 | 1 | 0 | |a BENTHIC COMMUNITIES |
| 690 | 1 | 0 | |a BENTHIC ECOSYSTEMS |
| 690 | 1 | 0 | |a COMMUNITY STRUCTURES |
| 690 | 1 | 0 | |a ECOSYSTEM RESPONSE |
| 690 | 1 | 0 | |a ENVIRONMENTAL VARIABLES |
| 690 | 1 | 0 | |a SEDIMENTATION PROCESS |
| 690 | 1 | 0 | |a CLIMATE CHANGE |
| 700 | 1 | |a Lagger, C. | |
| 700 | 1 | |a Torre, L. | |
| 700 | 1 | |a Momo, F. | |
| 700 | 1 | |a Monien, P. | |
| 700 | 1 | |a Schloss, I. | |
| 700 | 1 | |a Barnes, D.K.A. | |
| 700 | 1 | |a Servetto, N. | |
| 700 | 1 | |a Tarantelli, S. | |
| 700 | 1 | |a Tatián, M. | |
| 700 | 1 | |a Zamboni, N. | |
| 700 | 1 | |a Abele, D. | |
| 773 | 0 | |d American Association for the Advancement of Science, 2015 |g v. 1 |k n. 10 |x 23752548 |t Sci. Adv. | |
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| 856 | 4 | 0 | |u https://doi.org/10.1126/sciadv.1500050 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_23752548_v1_n10_p_Sahade |y Handle |
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| 961 | |a paper_23752548_v1_n10_p_Sahade |b paper |c PE | ||
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| 999 | |c 77717 | ||