Biogeography of Radiolaria Polycystina (Protista) in the World Ocean
Analysis of 307 species of Radiolaria Polycystina in a worldwide dataset of 4774 plankton, sediment trap, and surface sediment samples allows recognizing six major biogeographic Domains. Five of them are circumglobal (Polar North, Polar South, Bi-Subpolar, Transitional and Tropical-Subtropical), and...
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ftconicet:oai:ri.conicet.gov.ar:11336/61390 2023-10-09T21:55:25+02:00 Biogeography of Radiolaria Polycystina (Protista) in the World Ocean Boltovskoy, Demetrio Correa, Nancy Myriam application/pdf http://hdl.handle.net/11336/61390 eng eng Pergamon-Elsevier Science Ltd info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pocean.2016.09.006 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0079661116301501 http://hdl.handle.net/11336/61390 Boltovskoy, Demetrio; Correa, Nancy Myriam; Biogeography of Radiolaria Polycystina (Protista) in the World Ocean; Pergamon-Elsevier Science Ltd; Progress In Oceanography; 149; 12-2016; 82-105 0079-6611 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ Radiolaria Polycystina Biogeography World Ocean https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.pocean.2016.09.006 2023-09-24T19:20:53Z Analysis of 307 species of Radiolaria Polycystina in a worldwide dataset of 4774 plankton, sediment trap, and surface sediment samples allows recognizing six major biogeographic Domains. Five of them are circumglobal (Polar North, Polar South, Bi-Subpolar, Transitional and Tropical-Subtropical), and one is restricted to the Eastern Equatorial Pacific. Each Domain is characterized by a particular suite of species, all of which, however, occur widely, albeit sparsely, in one or more other Domains. Of the eight environmental variables evaluated, temperature correlates best with the partitions established. Species distributions in the water column and in the sediments are generally in agreement, but in the sediments cold water forms extend farther towards the equator than do warm water radiolarians towards the poles. In the Recent sedimentary record of planktonic Foraminifera the same phenomenon is magnified by the higher dissolution rates of warm water species, as compared with the cold water ones. Of the three major oceans, the Pacific was the most speciose, but estimates based on data corrected for sample-size show much smaller inter-oceanic differences, with ∼10 radiolarians probably being absent from either basin. The radiolarian biogeographic pattern is generally similar to those based on other planktonic and nektonic open-ocean organisms, but the degree of uniqueness of the Domains, as well as the position of the intervening boundaries, are variable, which reflects methodological differences, as well as taxon-specific traits. Partitions of the World Ocean defined on the basis of species ranges resemble the major divisions (presumably functionally homogeneous units) established on the basis of physical traits and chlorophyll fields, but secondary divisions nested within the latter are not reflected by any of the biogeographic schemes based on species distribution ranges. This conflict raises questions about the importance of several physical mechanisms for structuring pelagic communities, and/or on the ... Article in Journal/Newspaper Planktonic foraminifera CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Pacific Progress in Oceanography 149 82 105 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Radiolaria Polycystina Biogeography World Ocean https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
spellingShingle |
Radiolaria Polycystina Biogeography World Ocean https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 Boltovskoy, Demetrio Correa, Nancy Myriam Biogeography of Radiolaria Polycystina (Protista) in the World Ocean |
topic_facet |
Radiolaria Polycystina Biogeography World Ocean https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
description |
Analysis of 307 species of Radiolaria Polycystina in a worldwide dataset of 4774 plankton, sediment trap, and surface sediment samples allows recognizing six major biogeographic Domains. Five of them are circumglobal (Polar North, Polar South, Bi-Subpolar, Transitional and Tropical-Subtropical), and one is restricted to the Eastern Equatorial Pacific. Each Domain is characterized by a particular suite of species, all of which, however, occur widely, albeit sparsely, in one or more other Domains. Of the eight environmental variables evaluated, temperature correlates best with the partitions established. Species distributions in the water column and in the sediments are generally in agreement, but in the sediments cold water forms extend farther towards the equator than do warm water radiolarians towards the poles. In the Recent sedimentary record of planktonic Foraminifera the same phenomenon is magnified by the higher dissolution rates of warm water species, as compared with the cold water ones. Of the three major oceans, the Pacific was the most speciose, but estimates based on data corrected for sample-size show much smaller inter-oceanic differences, with ∼10 radiolarians probably being absent from either basin. The radiolarian biogeographic pattern is generally similar to those based on other planktonic and nektonic open-ocean organisms, but the degree of uniqueness of the Domains, as well as the position of the intervening boundaries, are variable, which reflects methodological differences, as well as taxon-specific traits. Partitions of the World Ocean defined on the basis of species ranges resemble the major divisions (presumably functionally homogeneous units) established on the basis of physical traits and chlorophyll fields, but secondary divisions nested within the latter are not reflected by any of the biogeographic schemes based on species distribution ranges. This conflict raises questions about the importance of several physical mechanisms for structuring pelagic communities, and/or on the ... |
format |
Article in Journal/Newspaper |
author |
Boltovskoy, Demetrio Correa, Nancy Myriam |
author_facet |
Boltovskoy, Demetrio Correa, Nancy Myriam |
author_sort |
Boltovskoy, Demetrio |
title |
Biogeography of Radiolaria Polycystina (Protista) in the World Ocean |
title_short |
Biogeography of Radiolaria Polycystina (Protista) in the World Ocean |
title_full |
Biogeography of Radiolaria Polycystina (Protista) in the World Ocean |
title_fullStr |
Biogeography of Radiolaria Polycystina (Protista) in the World Ocean |
title_full_unstemmed |
Biogeography of Radiolaria Polycystina (Protista) in the World Ocean |
title_sort |
biogeography of radiolaria polycystina (protista) in the world ocean |
publisher |
Pergamon-Elsevier Science Ltd |
url |
http://hdl.handle.net/11336/61390 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pocean.2016.09.006 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0079661116301501 http://hdl.handle.net/11336/61390 Boltovskoy, Demetrio; Correa, Nancy Myriam; Biogeography of Radiolaria Polycystina (Protista) in the World Ocean; Pergamon-Elsevier Science Ltd; Progress In Oceanography; 149; 12-2016; 82-105 0079-6611 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
op_doi |
https://doi.org/10.1016/j.pocean.2016.09.006 |
container_title |
Progress in Oceanography |
container_volume |
149 |
container_start_page |
82 |
op_container_end_page |
105 |
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1779319330721234944 |