Challenging the cold: Crabs reconquer the antarctic
Recent records of lithodid crabs in deeper waters off the Antarctic continental slope raised the question of the return of crabs to Antarctic waters, following their extinction in the lower Miocene ∼15 million years ago. Antarctic cooling may be responsible for the impoverishment of the marine high...
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ftunibueairesbd:todo:paper_00129658_v86_n3_p619_Thatje 2023-10-29T02:31:49+01:00 Challenging the cold: Crabs reconquer the antarctic Thatje, S. Anger, K. Calcagno, J.A. Lovrich, G.A. Pörtner, H.-O. Arntz, W.E. https://hdl.handle.net/20.500.12110/paper_00129658_v86_n3_p619_Thatje unknown http://hdl.handle.net/20.500.12110/paper_00129658_v86_n3_p619_Thatje info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Antarctic Biodiversity Climate change Crabs Evolution Marine ecosystems Temperature adaptation crab deep-sea benthos food availability life history oceanic regions Southern Ocean World Decapoda (Crustacea) Lithodidae JOUR ftunibueairesbd https://doi.org/20.500.12110/paper_00129658_v86_n3_p619_Thatje 2023-10-05T01:59:23Z Recent records of lithodid crabs in deeper waters off the Antarctic continental slope raised the question of the return of crabs to Antarctic waters, following their extinction in the lower Miocene ∼15 million years ago. Antarctic cooling may be responsible for the impoverishment of the marine high Antarctic decapod fauna, presently comprising only five benthic shrimp species. Effects of polar conditions on marine life, including lowered metabolic rates and short seasonal food availability, are discussed as main evolutionary driving forces shaping Antarctic diversity. In particular, planktotrophic larval stages should be vulnerable to the mismatch of prolonged development and short periods of food availability, selecting against complex life cycles. We hypothesize that larval lecithotrophy and cold tolerance, as recently observed in Subantarctic lithodids, represent, together with other adaptations in the adults, key features among the life-history adaptations of lithodids, potentially enabling them to conquer polar ecosystems. The return of benthic top predators to high Antarctic waters under conditions of climate change would considerably alter the benthic communities. © 2005 by the Ecological Society of America. Fil:Calcagno, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lovrich, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Journal/Newspaper Antarc* Antarctic Southern Ocean Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
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Open Polar |
collection |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
op_collection_id |
ftunibueairesbd |
language |
unknown |
topic |
Antarctic Biodiversity Climate change Crabs Evolution Marine ecosystems Temperature adaptation crab deep-sea benthos food availability life history oceanic regions Southern Ocean World Decapoda (Crustacea) Lithodidae |
spellingShingle |
Antarctic Biodiversity Climate change Crabs Evolution Marine ecosystems Temperature adaptation crab deep-sea benthos food availability life history oceanic regions Southern Ocean World Decapoda (Crustacea) Lithodidae Thatje, S. Anger, K. Calcagno, J.A. Lovrich, G.A. Pörtner, H.-O. Arntz, W.E. Challenging the cold: Crabs reconquer the antarctic |
topic_facet |
Antarctic Biodiversity Climate change Crabs Evolution Marine ecosystems Temperature adaptation crab deep-sea benthos food availability life history oceanic regions Southern Ocean World Decapoda (Crustacea) Lithodidae |
description |
Recent records of lithodid crabs in deeper waters off the Antarctic continental slope raised the question of the return of crabs to Antarctic waters, following their extinction in the lower Miocene ∼15 million years ago. Antarctic cooling may be responsible for the impoverishment of the marine high Antarctic decapod fauna, presently comprising only five benthic shrimp species. Effects of polar conditions on marine life, including lowered metabolic rates and short seasonal food availability, are discussed as main evolutionary driving forces shaping Antarctic diversity. In particular, planktotrophic larval stages should be vulnerable to the mismatch of prolonged development and short periods of food availability, selecting against complex life cycles. We hypothesize that larval lecithotrophy and cold tolerance, as recently observed in Subantarctic lithodids, represent, together with other adaptations in the adults, key features among the life-history adaptations of lithodids, potentially enabling them to conquer polar ecosystems. The return of benthic top predators to high Antarctic waters under conditions of climate change would considerably alter the benthic communities. © 2005 by the Ecological Society of America. Fil:Calcagno, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lovrich, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
format |
Journal/Newspaper |
author |
Thatje, S. Anger, K. Calcagno, J.A. Lovrich, G.A. Pörtner, H.-O. Arntz, W.E. |
author_facet |
Thatje, S. Anger, K. Calcagno, J.A. Lovrich, G.A. Pörtner, H.-O. Arntz, W.E. |
author_sort |
Thatje, S. |
title |
Challenging the cold: Crabs reconquer the antarctic |
title_short |
Challenging the cold: Crabs reconquer the antarctic |
title_full |
Challenging the cold: Crabs reconquer the antarctic |
title_fullStr |
Challenging the cold: Crabs reconquer the antarctic |
title_full_unstemmed |
Challenging the cold: Crabs reconquer the antarctic |
title_sort |
challenging the cold: crabs reconquer the antarctic |
url |
https://hdl.handle.net/20.500.12110/paper_00129658_v86_n3_p619_Thatje |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://hdl.handle.net/20.500.12110/paper_00129658_v86_n3_p619_Thatje |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
op_doi |
https://doi.org/20.500.12110/paper_00129658_v86_n3_p619_Thatje |
_version_ |
1781052636507668480 |