Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record
<jats:p> The evolutionary centre of origin of Nothofagus (Nothofagaceae) remains an open question. Competing hypotheses suggest either a South American or Australasian source area for Nothofagus. Antarctica, once part of Gondwana and densely vegetated in the Cretaceous, was certainly important...
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Language: | English |
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Online Access: | http://hdl.handle.net/2440/12111 https://doi.org/10.1071/SB99010 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/12111 2023-12-17T10:22:04+01:00 Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record Swenson, U. Hill, R. McLoughlin, S. 2000 http://hdl.handle.net/2440/12111 https://doi.org/10.1071/SB99010 en eng C S I R O Publishing Australian Systematic Botany, 2000; 13(4):469-478 1030-1887 1446-5701 http://hdl.handle.net/2440/12111 doi:10.1071/SB99010 Hill, R. [0000-0003-4564-4339] © CSIRO 2000 http://dx.doi.org/10.1071/sb99010 Journal article 2000 ftunivadelaidedl https://doi.org/10.1071/SB9901010.1071/sb99010 2023-11-20T23:33:47Z <jats:p> The evolutionary centre of origin of Nothofagus (Nothofagaceae) remains an open question. Competing hypotheses suggest either a South American or Australasian source area for Nothofagus. Antarctica, once part of Gondwana and densely vegetated in the Cretaceous, was certainly important for the diversification of the genus but cannot be included in current modelling due to its lack of extant species. By using Bremer’s (1992), Ronquist’s (1994) and Hausdorf’s (1998) methods, all based on cladistic philosophy, analyses of the modern areas of endemism being part of the ancestral area of Nothofagus were undertaken. Southern South America was distinctly identified as the likely ancestral area by Bremer’s and Hausdorf’s methods. This result is supported by the current fossil record. Ronquist’s method was not decisive and yielded ambiguous results, suggesting a larger, combined ancestral area. These results do not favour Australasia, or parts thereof, being an important area for Nothofagus origin. Bremer’s and Hausdorf’s methods identified New Zealand as the second most plausible source area, a result partly supported by the fossil record.</jats:p> Swenson, Ulf Hill, Robert S McLoughlin, Stephen Article in Journal/Newspaper Antarc* Antarctica The University of Adelaide: Digital Library New Zealand Australian Systematic Botany 13 4 469 |
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Open Polar |
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The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
description |
<jats:p> The evolutionary centre of origin of Nothofagus (Nothofagaceae) remains an open question. Competing hypotheses suggest either a South American or Australasian source area for Nothofagus. Antarctica, once part of Gondwana and densely vegetated in the Cretaceous, was certainly important for the diversification of the genus but cannot be included in current modelling due to its lack of extant species. By using Bremer’s (1992), Ronquist’s (1994) and Hausdorf’s (1998) methods, all based on cladistic philosophy, analyses of the modern areas of endemism being part of the ancestral area of Nothofagus were undertaken. Southern South America was distinctly identified as the likely ancestral area by Bremer’s and Hausdorf’s methods. This result is supported by the current fossil record. Ronquist’s method was not decisive and yielded ambiguous results, suggesting a larger, combined ancestral area. These results do not favour Australasia, or parts thereof, being an important area for Nothofagus origin. Bremer’s and Hausdorf’s methods identified New Zealand as the second most plausible source area, a result partly supported by the fossil record.</jats:p> Swenson, Ulf Hill, Robert S McLoughlin, Stephen |
format |
Article in Journal/Newspaper |
author |
Swenson, U. Hill, R. McLoughlin, S. |
spellingShingle |
Swenson, U. Hill, R. McLoughlin, S. Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record |
author_facet |
Swenson, U. Hill, R. McLoughlin, S. |
author_sort |
Swenson, U. |
title |
Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record |
title_short |
Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record |
title_full |
Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record |
title_fullStr |
Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record |
title_full_unstemmed |
Ancestral area analysis of Nothofagus (Nothofagaceae) and its congruence with the fossil record |
title_sort |
ancestral area analysis of nothofagus (nothofagaceae) and its congruence with the fossil record |
publisher |
C S I R O Publishing |
publishDate |
2000 |
url |
http://hdl.handle.net/2440/12111 https://doi.org/10.1071/SB99010 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://dx.doi.org/10.1071/sb99010 |
op_relation |
Australian Systematic Botany, 2000; 13(4):469-478 1030-1887 1446-5701 http://hdl.handle.net/2440/12111 doi:10.1071/SB99010 Hill, R. [0000-0003-4564-4339] |
op_rights |
© CSIRO 2000 |
op_doi |
https://doi.org/10.1071/SB9901010.1071/sb99010 |
container_title |
Australian Systematic Botany |
container_volume |
13 |
container_issue |
4 |
container_start_page |
469 |
_version_ |
1785542775640424448 |