Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.

Analysis of 18 surface sediment samples from between 1o and 64oS, along approx. 180oE, yielded 195 Recent radiolarian taxa. Clustering of the species and the samples, and further examination of the distribution patterns of radiolarian abundances, allowed definition of five climatic zones (tropical t...

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Detalles Bibliográficos
Autor principal: Boltovskoy, D.
Formato: JOUR
Materias:
Recent
Transition Zone
Tropical Zone
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00262803_v33_n3_p267_Boltovskoy
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00262803_v33_n3_p267_Boltovskoy
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spelling todo:paper_00262803_v33_n3_p267_Boltovskoy2023-10-03T14:37:00Z Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean. Boltovskoy, D. Recent Transition Zone Tropical Zone Analysis of 18 surface sediment samples from between 1o and 64oS, along approx. 180oE, yielded 195 Recent radiolarian taxa. Clustering of the species and the samples, and further examination of the distribution patterns of radiolarian abundances, allowed definition of five climatic zones (tropical to antarctic) and several species groups and isolated species with variable degrees of selective loading on the five areas. Specific diversities were highest in the Tropical Zone, and a secondary peak occurred at the northern edge of the Transition Zone; the latter area was barren of endemic and, probably, also of characteristic taxa. A zonation of the transect, based on a family and suborder level radiolarian census, was similar to the one based on the species, suggesting that the distribution of these higher-level categories is meaningful in ecological terms. - Author Fil:Boltovskoy, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00262803_v33_n3_p267_Boltovskoy
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Recent
Transition Zone
Tropical Zone
spellingShingle Recent
Transition Zone
Tropical Zone
Boltovskoy, D.
Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.
topic_facet Recent
Transition Zone
Tropical Zone
description Analysis of 18 surface sediment samples from between 1o and 64oS, along approx. 180oE, yielded 195 Recent radiolarian taxa. Clustering of the species and the samples, and further examination of the distribution patterns of radiolarian abundances, allowed definition of five climatic zones (tropical to antarctic) and several species groups and isolated species with variable degrees of selective loading on the five areas. Specific diversities were highest in the Tropical Zone, and a secondary peak occurred at the northern edge of the Transition Zone; the latter area was barren of endemic and, probably, also of characteristic taxa. A zonation of the transect, based on a family and suborder level radiolarian census, was similar to the one based on the species, suggesting that the distribution of these higher-level categories is meaningful in ecological terms. - Author
format JOUR
author Boltovskoy, D.
author_facet Boltovskoy, D.
author_sort Boltovskoy, D.
title Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.
title_short Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.
title_full Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.
title_fullStr Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.
title_full_unstemmed Sedimentary record of radiolarian biogeography in the equatorial to antarctic western Pacific Ocean.
title_sort sedimentary record of radiolarian biogeography in the equatorial to antarctic western pacific ocean.
url http://hdl.handle.net/20.500.12110/paper_00262803_v33_n3_p267_Boltovskoy
work_keys_str_mv AT boltovskoyd sedimentaryrecordofradiolarianbiogeographyintheequatorialtoantarcticwesternpacificocean
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