Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America
Abstract This study of the relationships between the Antarctic, sub-Antarctic and South America biogeographical regions used both existing and new data. We constructed a presence/absence matrix of 237 species for 27 biogeographical divisions which included the Amsterdam-Saint Paul and Tristan da Cun...
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crcambridgeupr:10.1017/s0954102007000521 2024-03-17T08:54:05+00:00 Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America Primo, Carmen Vázquez, Elsa 2007 http://dx.doi.org/10.1017/s0954102007000521 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000521 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 19, issue 3, page 321-336 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2007 crcambridgeupr https://doi.org/10.1017/s0954102007000521 2024-02-20T00:02:57Z Abstract This study of the relationships between the Antarctic, sub-Antarctic and South America biogeographical regions used both existing and new data. We constructed a presence/absence matrix of 237 species for 27 biogeographical divisions which included the Amsterdam-Saint Paul and Tristan da Cunha islands. Species and areas were classified using cluster analysis combined with MDS ordination. Six main groups were obtained from the species classification: 1) Amsterdam-Saint Paul, and 2) Tristan da Cunha species, 3) species from the Macquarie Province, 4) species from the sub-Antarctic Region, 5) Antarctic species and species distributed in the cold regions, 6) South American species. The biogeographical components were dominated by the endemic (although it is not as high as in other groups), Antarctic-South America and Southern Hemisphere elements. Except for Amsterdam-Saint Paul, Tristan da Cunha and Bouvet, the areas considered were grouped together with Macquarie being rather related to New Zealand regions. We speculate that the Antarctic Region may have acted as an “evolutionary incubator”, providing a centre of origin for sub-Antarctic and South American ascidians. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Cambridge University Press Antarctic The Antarctic New Zealand Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) Bouvet ENVELOPE(3.358,3.358,-54.422,-54.422) Saint-Paul ENVELOPE(-57.715,-57.715,51.467,51.467) Antarctic Science 19 3 321 336 |
institution |
Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Primo, Carmen Vázquez, Elsa Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract This study of the relationships between the Antarctic, sub-Antarctic and South America biogeographical regions used both existing and new data. We constructed a presence/absence matrix of 237 species for 27 biogeographical divisions which included the Amsterdam-Saint Paul and Tristan da Cunha islands. Species and areas were classified using cluster analysis combined with MDS ordination. Six main groups were obtained from the species classification: 1) Amsterdam-Saint Paul, and 2) Tristan da Cunha species, 3) species from the Macquarie Province, 4) species from the sub-Antarctic Region, 5) Antarctic species and species distributed in the cold regions, 6) South American species. The biogeographical components were dominated by the endemic (although it is not as high as in other groups), Antarctic-South America and Southern Hemisphere elements. Except for Amsterdam-Saint Paul, Tristan da Cunha and Bouvet, the areas considered were grouped together with Macquarie being rather related to New Zealand regions. We speculate that the Antarctic Region may have acted as an “evolutionary incubator”, providing a centre of origin for sub-Antarctic and South American ascidians. |
format |
Article in Journal/Newspaper |
author |
Primo, Carmen Vázquez, Elsa |
author_facet |
Primo, Carmen Vázquez, Elsa |
author_sort |
Primo, Carmen |
title |
Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America |
title_short |
Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America |
title_full |
Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America |
title_fullStr |
Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America |
title_full_unstemmed |
Zoogeography of the Antarctic ascidian fauna in relation to the sub-Antarctic and South America |
title_sort |
zoogeography of the antarctic ascidian fauna in relation to the sub-antarctic and south america |
publisher |
Cambridge University Press (CUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1017/s0954102007000521 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102007000521 |
long_lat |
ENVELOPE(140.900,140.900,-66.735,-66.735) ENVELOPE(3.358,3.358,-54.422,-54.422) ENVELOPE(-57.715,-57.715,51.467,51.467) |
geographic |
Antarctic The Antarctic New Zealand Tristan Bouvet Saint-Paul |
geographic_facet |
Antarctic The Antarctic New Zealand Tristan Bouvet Saint-Paul |
genre |
Antarc* Antarctic Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Science |
op_source |
Antarctic Science volume 19, issue 3, page 321-336 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102007000521 |
container_title |
Antarctic Science |
container_volume |
19 |
container_issue |
3 |
container_start_page |
321 |
op_container_end_page |
336 |
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1793770884376297472 |