Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses
Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupy...
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Online Access: | https://doi.org/10.3389/fmars.2017.00356 http://ecite.utas.edu.au/146246 |
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ftunivtasecite:oai:ecite.utas.edu.au:146246 2023-05-15T13:59:46+02:00 Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses Brasier, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, H Glover, AG 2017 application/pdf https://doi.org/10.3389/fmars.2017.00356 http://ecite.utas.edu.au/146246 en eng Frontiers Research Foundation http://ecite.utas.edu.au/146246/1/146246 - Distributional patterns of polychaetes across the West.pdf http://dx.doi.org/10.3389/fmars.2017.00356 Brasier, MJ and Harle, J and Wiklund, H and Jeffreys, RM and Linse, K and Ruhl, H and Glover, AG, Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses, Frontiers in Marine Science, 4 Article 356. ISSN 2296-7745 (2017) [Refereed Article] http://ecite.utas.edu.au/146246 Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) Refereed Article PeerReviewed 2017 ftunivtasecite https://doi.org/10.3389/fmars.2017.00356 2021-09-13T22:16:50Z Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the West Antarctic. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses were used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents, including the Antarctic Circumpolar Current (ACC) and its coastal counter current. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region. Article in Journal/Newspaper Antarc* Antarctic Antarctica eCite UTAS (University of Tasmania) Antarctic The Antarctic Frontiers in Marine Science 4 |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) |
spellingShingle |
Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) Brasier, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, H Glover, AG Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses |
topic_facet |
Biological Sciences Ecology Marine and estuarine ecology (incl. marine ichthyology) |
description |
Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the West Antarctic. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses were used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents, including the Antarctic Circumpolar Current (ACC) and its coastal counter current. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region. |
format |
Article in Journal/Newspaper |
author |
Brasier, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, H Glover, AG |
author_facet |
Brasier, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, H Glover, AG |
author_sort |
Brasier, MJ |
title |
Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses |
title_short |
Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses |
title_full |
Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses |
title_fullStr |
Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses |
title_full_unstemmed |
Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses |
title_sort |
distributional patterns of polychaetes across the west antarctic based on dna barcoding and particle tracking analyses |
publisher |
Frontiers Research Foundation |
publishDate |
2017 |
url |
https://doi.org/10.3389/fmars.2017.00356 http://ecite.utas.edu.au/146246 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
http://ecite.utas.edu.au/146246/1/146246 - Distributional patterns of polychaetes across the West.pdf http://dx.doi.org/10.3389/fmars.2017.00356 Brasier, MJ and Harle, J and Wiklund, H and Jeffreys, RM and Linse, K and Ruhl, H and Glover, AG, Distributional patterns of polychaetes across the West Antarctic based on DNA barcoding and particle tracking analyses, Frontiers in Marine Science, 4 Article 356. ISSN 2296-7745 (2017) [Refereed Article] http://ecite.utas.edu.au/146246 |
op_doi |
https://doi.org/10.3389/fmars.2017.00356 |
container_title |
Frontiers in Marine Science |
container_volume |
4 |
_version_ |
1766268564275200000 |