Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus)
Climatic oscillations during the Pleistocene have greatly influenced the distribution and connectivity of many organisms, leading to extinctions but also generating biodiversity. While the effects of such changes have been extensively studied in the terrestrial environment, studies focusing on the m...
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ftmacquariefig:oai:figshare.com:article/20045063 2023-05-15T17:35:56+02:00 Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) Ana Amaral Luciano Beheregaray Kerstin Bilgmann Luís Freitas Kelly Robertson Marina Sequeira Karen Stockin M. M. Coelho Luciana Möller 2012-07-09T00:00:00Z https://doi.org/10.5061/dryad.3pf37 https://figshare.com/articles/dataset/Data_from_Influences_of_past_climatic_changes_on_historical_population_structure_and_demography_of_a_cosmopolitan_marine_predator_the_common_dolphin_genus_Delphinus_/20045063 unknown doi:10.5061/dryad.3pf37 https://figshare.com/articles/dataset/Data_from_Influences_of_past_climatic_changes_on_historical_population_structure_and_demography_of_a_cosmopolitan_marine_predator_the_common_dolphin_genus_Delphinus_/20045063 CC0 CC0 Other education not elsewhere classified Delphinus delphis Delphinus capensis Delphinus capensis tropicalis Dataset 2012 ftmacquariefig https://doi.org/10.5061/dryad.3pf37 2022-12-28T08:34:08Z Climatic oscillations during the Pleistocene have greatly influenced the distribution and connectivity of many organisms, leading to extinctions but also generating biodiversity. While the effects of such changes have been extensively studied in the terrestrial environment, studies focusing on the marine realm are still scarce. Here we used sequence data from one mitochondrial and five nuclear loci to assess the potential influence of Pleistocene climatic changes on the phylogeography and demographic history of a cosmopolitan marine predator, the common dolphin (genus Delphinus). Population samples representing the three major morphotypes of Delphinus were obtained from ten oceanic regions. Our results suggest that short-beaked common dolphins are likely to have originated in the eastern Indo-Pacific Ocean during the Pleistocene and expanded into the Atlantic Ocean through the Indian Ocean. On the other hand, long-beaked common dolphins appear to have evolved more recently and independently in several oceans. Our results also suggest that short-beaked common dolphins had recurrent demographic expansions concomitant with changes in sea surface temperature during the Pleistocene and its associated increases in resource availability, which differed between the North Atlantic and Pacific Ocean basins. By proposing how past environmental changes had an effect on the demography and speciation of a widely distributed marine mammal, we highlight the impacts that climate change may have on the distribution and abundance of marine predators and its ecological consequences for marine ecosystems. Usage Notes cytbNexus file containing haplotype sequences obtained for the mitochondrial cytochrome b gene from Delphinus delphis, Delphinus capensis and Delphinus tropicalis. Samples were collected from stranded or live animals using biopsies in the Atlantic, Pacific and Indian Oceans.chrna1Nexus file containing sequences obtained for CHRNA1 (cholinergic receptor nicotinic alpha-polypeptide 1) from Delphinus delphis, Delphinus ... Dataset North Atlantic Research from Macquarie University Pacific Indian |
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Research from Macquarie University |
op_collection_id |
ftmacquariefig |
language |
unknown |
topic |
Other education not elsewhere classified Delphinus delphis Delphinus capensis Delphinus capensis tropicalis |
spellingShingle |
Other education not elsewhere classified Delphinus delphis Delphinus capensis Delphinus capensis tropicalis Ana Amaral Luciano Beheregaray Kerstin Bilgmann Luís Freitas Kelly Robertson Marina Sequeira Karen Stockin M. M. Coelho Luciana Möller Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) |
topic_facet |
Other education not elsewhere classified Delphinus delphis Delphinus capensis Delphinus capensis tropicalis |
description |
Climatic oscillations during the Pleistocene have greatly influenced the distribution and connectivity of many organisms, leading to extinctions but also generating biodiversity. While the effects of such changes have been extensively studied in the terrestrial environment, studies focusing on the marine realm are still scarce. Here we used sequence data from one mitochondrial and five nuclear loci to assess the potential influence of Pleistocene climatic changes on the phylogeography and demographic history of a cosmopolitan marine predator, the common dolphin (genus Delphinus). Population samples representing the three major morphotypes of Delphinus were obtained from ten oceanic regions. Our results suggest that short-beaked common dolphins are likely to have originated in the eastern Indo-Pacific Ocean during the Pleistocene and expanded into the Atlantic Ocean through the Indian Ocean. On the other hand, long-beaked common dolphins appear to have evolved more recently and independently in several oceans. Our results also suggest that short-beaked common dolphins had recurrent demographic expansions concomitant with changes in sea surface temperature during the Pleistocene and its associated increases in resource availability, which differed between the North Atlantic and Pacific Ocean basins. By proposing how past environmental changes had an effect on the demography and speciation of a widely distributed marine mammal, we highlight the impacts that climate change may have on the distribution and abundance of marine predators and its ecological consequences for marine ecosystems. Usage Notes cytbNexus file containing haplotype sequences obtained for the mitochondrial cytochrome b gene from Delphinus delphis, Delphinus capensis and Delphinus tropicalis. Samples were collected from stranded or live animals using biopsies in the Atlantic, Pacific and Indian Oceans.chrna1Nexus file containing sequences obtained for CHRNA1 (cholinergic receptor nicotinic alpha-polypeptide 1) from Delphinus delphis, Delphinus ... |
format |
Dataset |
author |
Ana Amaral Luciano Beheregaray Kerstin Bilgmann Luís Freitas Kelly Robertson Marina Sequeira Karen Stockin M. M. Coelho Luciana Möller |
author_facet |
Ana Amaral Luciano Beheregaray Kerstin Bilgmann Luís Freitas Kelly Robertson Marina Sequeira Karen Stockin M. M. Coelho Luciana Möller |
author_sort |
Ana Amaral |
title |
Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) |
title_short |
Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) |
title_full |
Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) |
title_fullStr |
Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) |
title_full_unstemmed |
Data from: Influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus Delphinus) |
title_sort |
data from: influences of past climatic changes on historical population structure and demography of a cosmopolitan marine predator, the common dolphin (genus delphinus) |
publishDate |
2012 |
url |
https://doi.org/10.5061/dryad.3pf37 https://figshare.com/articles/dataset/Data_from_Influences_of_past_climatic_changes_on_historical_population_structure_and_demography_of_a_cosmopolitan_marine_predator_the_common_dolphin_genus_Delphinus_/20045063 |
geographic |
Pacific Indian |
geographic_facet |
Pacific Indian |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.5061/dryad.3pf37 https://figshare.com/articles/dataset/Data_from_Influences_of_past_climatic_changes_on_historical_population_structure_and_demography_of_a_cosmopolitan_marine_predator_the_common_dolphin_genus_Delphinus_/20045063 |
op_rights |
CC0 |
op_rightsnorm |
CC0 |
op_doi |
https://doi.org/10.5061/dryad.3pf37 |
_version_ |
1766135243597676544 |