A dynamic global model for planktonic foraminifera
International audience Seasonal changes in the flux of planktonic foraminifera have to be understood to interpret corresponding proxy-based reconstructions. To study the seasonal cycle of planktonic foraminifera species we developed a numerical model of species concentration (PLAFOM). This model is...
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ftccsdartic:oai:HAL:hal-00297944v1 2023-05-15T18:00:23+02:00 A dynamic global model for planktonic foraminifera Fraile, I. Schulz, M Mulitza, S. Kucera, M. Department of Geosystem modelling University of Bremen DFG Research Center Ocean Marigins Institute of Geosciences Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen 2007-11-26 https://hal.archives-ouvertes.fr/hal-00297944 https://hal.archives-ouvertes.fr/hal-00297944/document https://hal.archives-ouvertes.fr/hal-00297944/file/bgd-4-4323-2007.pdf en eng HAL CCSD European Geosciences Union hal-00297944 https://hal.archives-ouvertes.fr/hal-00297944 https://hal.archives-ouvertes.fr/hal-00297944/document https://hal.archives-ouvertes.fr/hal-00297944/file/bgd-4-4323-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.archives-ouvertes.fr/hal-00297944 Biogeosciences Discussions, European Geosciences Union, 2007, 4 (6), pp.4323-4384 [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftccsdartic 2021-10-31T12:37:46Z International audience Seasonal changes in the flux of planktonic foraminifera have to be understood to interpret corresponding proxy-based reconstructions. To study the seasonal cycle of planktonic foraminifera species we developed a numerical model of species concentration (PLAFOM). This model is forced with a global hydrographic dataset (e.g. temperature, mixed layer depth) and with biological information taken from an ecosystem model (e.g. "food type", zooplankton abundance) to predict monthly concentrations of the most common planktonic foraminifera species used for proxies: N. pachyderma (sinistral and dextral varieties), G. bulloides , G. ruber (white variety) and G. sacculifer . The sensitivity of each species with respect to temperature (optimal temperature and range of tolerance) is derived from sediment-trap studies. Overall, the spatial distribution patterns of most of the species are comparable to core-top data. N. pachyderma (sin.) is limited to polar regions, N. pachyderma (dex.) and G. bulloides are the most common species in high productivity zones like upwelling areas, while G. ruber and G. sacculifer are more abundant in tropical and subtropical oligotrophic waters. Modeled seasonal variation match well with sediment-trap records in most of the locations for N. pachyderma (sin), N. pachyderma (dex.) and G. bulloides . G. ruber and G. sacculifer show, in general, lower concentrations and less seasonal variability in all sites. The lower variability is reflected in the model output, but the small scale variations are not reproduced by the model in several locations. Due to the fact that the model is forced by climatological data, it can not capture interannual variations. The sensitivity experiments we carried out show that, inside the temperature tolerance range, food availability is the main parameter which controls the abundance of some species. The here presented model represents a powerful tool to explore the response of planktonic foraminifera to different boundary conditions, and to ... Article in Journal/Newspaper Planktonic foraminifera Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Fraile, I. Schulz, M Mulitza, S. Kucera, M. A dynamic global model for planktonic foraminifera |
topic_facet |
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Seasonal changes in the flux of planktonic foraminifera have to be understood to interpret corresponding proxy-based reconstructions. To study the seasonal cycle of planktonic foraminifera species we developed a numerical model of species concentration (PLAFOM). This model is forced with a global hydrographic dataset (e.g. temperature, mixed layer depth) and with biological information taken from an ecosystem model (e.g. "food type", zooplankton abundance) to predict monthly concentrations of the most common planktonic foraminifera species used for proxies: N. pachyderma (sinistral and dextral varieties), G. bulloides , G. ruber (white variety) and G. sacculifer . The sensitivity of each species with respect to temperature (optimal temperature and range of tolerance) is derived from sediment-trap studies. Overall, the spatial distribution patterns of most of the species are comparable to core-top data. N. pachyderma (sin.) is limited to polar regions, N. pachyderma (dex.) and G. bulloides are the most common species in high productivity zones like upwelling areas, while G. ruber and G. sacculifer are more abundant in tropical and subtropical oligotrophic waters. Modeled seasonal variation match well with sediment-trap records in most of the locations for N. pachyderma (sin), N. pachyderma (dex.) and G. bulloides . G. ruber and G. sacculifer show, in general, lower concentrations and less seasonal variability in all sites. The lower variability is reflected in the model output, but the small scale variations are not reproduced by the model in several locations. Due to the fact that the model is forced by climatological data, it can not capture interannual variations. The sensitivity experiments we carried out show that, inside the temperature tolerance range, food availability is the main parameter which controls the abundance of some species. The here presented model represents a powerful tool to explore the response of planktonic foraminifera to different boundary conditions, and to ... |
author2 |
Department of Geosystem modelling University of Bremen DFG Research Center Ocean Marigins Institute of Geosciences Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen |
format |
Article in Journal/Newspaper |
author |
Fraile, I. Schulz, M Mulitza, S. Kucera, M. |
author_facet |
Fraile, I. Schulz, M Mulitza, S. Kucera, M. |
author_sort |
Fraile, I. |
title |
A dynamic global model for planktonic foraminifera |
title_short |
A dynamic global model for planktonic foraminifera |
title_full |
A dynamic global model for planktonic foraminifera |
title_fullStr |
A dynamic global model for planktonic foraminifera |
title_full_unstemmed |
A dynamic global model for planktonic foraminifera |
title_sort |
dynamic global model for planktonic foraminifera |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-00297944 https://hal.archives-ouvertes.fr/hal-00297944/document https://hal.archives-ouvertes.fr/hal-00297944/file/bgd-4-4323-2007.pdf |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
ISSN: 1810-6277 EISSN: 1810-6285 Biogeosciences Discussions https://hal.archives-ouvertes.fr/hal-00297944 Biogeosciences Discussions, European Geosciences Union, 2007, 4 (6), pp.4323-4384 |
op_relation |
hal-00297944 https://hal.archives-ouvertes.fr/hal-00297944 https://hal.archives-ouvertes.fr/hal-00297944/document https://hal.archives-ouvertes.fr/hal-00297944/file/bgd-4-4323-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766169448304082944 |