Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods
The geographic distributions of some coastal marine species have appeared as cosmopolitan ever since they were first scientifically documented. In particular, for many benthic species that are associated with anthropogenic substrata, there is much speculation as to whether or not their broad distrib...
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crpeerj:10.7717/peerj.9613 2024-09-15T18:26:24+00:00 Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods Beermann, Jan Hall-Mullen, Allison K. Havermans, Charlotte Coolen, Joop WP Crooijmans, Richard PMA Dibbits, Bert Held, Christoph Desiderato, Andrea Deutsche Forschungsgemeinschaft NWO Domain Applied and Engineering Sciences Conselho Nacional de Desenvolvimento Cientifico e Tecnologico Deutscher Akademischer Austauschdienst 2020 http://dx.doi.org/10.7717/peerj.9613 https://peerj.com/articles/9613.pdf https://peerj.com/articles/9613.xml https://peerj.com/articles/9613.html en eng PeerJ https://creativecommons.org/licenses/by/4.0/ PeerJ volume 8, page e9613 ISSN 2167-8359 journal-article 2020 crpeerj https://doi.org/10.7717/peerj.9613 2024-07-23T04:08:31Z The geographic distributions of some coastal marine species have appeared as cosmopolitan ever since they were first scientifically documented. In particular, for many benthic species that are associated with anthropogenic substrata, there is much speculation as to whether or not their broad distributions can be explained by natural mechanisms of dispersal. Here, we focused on two congeneric coastal crustaceans with cosmopolitan distributions—the tube-dwelling amphipods Jassa marmorata and Jassa slatteryi . Both species are common elements of marine biofouling on nearly all kinds of artificial hard substrata in temperate to warm seas. We hypothesized that the two species’ modern occurrences across the oceans are the result of human shipping activities that started centuries ago. Mitochondrial DNA sequences of the CO1 fragment of specimens from distinct marine regions around the world were analysed, evaluating genetic structure and migration models and making inferences on putative native ranges of the two Jassa species. Populations of both species exhibited considerable genetic diversity with differing levels of geographic structure. For both species, at least two dominant haplotypes were shared among several geographic populations. Rapid demographic expansion and high migration rates between geographically distant regions support a scenario of ongoing dispersal all over the world. Our findings indicate that the likely former native range of J. marmorata is the Northwest Atlantic, whereas the likely former native range of J. slatteryi is the Northern Pacific region. As corroborated by the genetic connectivity between populations, shipping still appears to be the more successful vector of the two species’ dispersal when compared to natural mechanisms. Historical invasion events that likely started centuries ago, along with current ongoing dispersal, confirm these species’ identities as true “neocosmopolitans”. Article in Journal/Newspaper Northwest Atlantic PeerJ Publishing PeerJ 8 e9613 |
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English |
description |
The geographic distributions of some coastal marine species have appeared as cosmopolitan ever since they were first scientifically documented. In particular, for many benthic species that are associated with anthropogenic substrata, there is much speculation as to whether or not their broad distributions can be explained by natural mechanisms of dispersal. Here, we focused on two congeneric coastal crustaceans with cosmopolitan distributions—the tube-dwelling amphipods Jassa marmorata and Jassa slatteryi . Both species are common elements of marine biofouling on nearly all kinds of artificial hard substrata in temperate to warm seas. We hypothesized that the two species’ modern occurrences across the oceans are the result of human shipping activities that started centuries ago. Mitochondrial DNA sequences of the CO1 fragment of specimens from distinct marine regions around the world were analysed, evaluating genetic structure and migration models and making inferences on putative native ranges of the two Jassa species. Populations of both species exhibited considerable genetic diversity with differing levels of geographic structure. For both species, at least two dominant haplotypes were shared among several geographic populations. Rapid demographic expansion and high migration rates between geographically distant regions support a scenario of ongoing dispersal all over the world. Our findings indicate that the likely former native range of J. marmorata is the Northwest Atlantic, whereas the likely former native range of J. slatteryi is the Northern Pacific region. As corroborated by the genetic connectivity between populations, shipping still appears to be the more successful vector of the two species’ dispersal when compared to natural mechanisms. Historical invasion events that likely started centuries ago, along with current ongoing dispersal, confirm these species’ identities as true “neocosmopolitans”. |
author2 |
Deutsche Forschungsgemeinschaft NWO Domain Applied and Engineering Sciences Conselho Nacional de Desenvolvimento Cientifico e Tecnologico Deutscher Akademischer Austauschdienst |
format |
Article in Journal/Newspaper |
author |
Beermann, Jan Hall-Mullen, Allison K. Havermans, Charlotte Coolen, Joop WP Crooijmans, Richard PMA Dibbits, Bert Held, Christoph Desiderato, Andrea |
spellingShingle |
Beermann, Jan Hall-Mullen, Allison K. Havermans, Charlotte Coolen, Joop WP Crooijmans, Richard PMA Dibbits, Bert Held, Christoph Desiderato, Andrea Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
author_facet |
Beermann, Jan Hall-Mullen, Allison K. Havermans, Charlotte Coolen, Joop WP Crooijmans, Richard PMA Dibbits, Bert Held, Christoph Desiderato, Andrea |
author_sort |
Beermann, Jan |
title |
Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
title_short |
Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
title_full |
Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
title_fullStr |
Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
title_full_unstemmed |
Ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
title_sort |
ancient globetrotters—connectivity and putative native ranges of two cosmopolitan biofouling amphipods |
publisher |
PeerJ |
publishDate |
2020 |
url |
http://dx.doi.org/10.7717/peerj.9613 https://peerj.com/articles/9613.pdf https://peerj.com/articles/9613.xml https://peerj.com/articles/9613.html |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
PeerJ volume 8, page e9613 ISSN 2167-8359 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.9613 |
container_title |
PeerJ |
container_volume |
8 |
container_start_page |
e9613 |
_version_ |
1810466880247300096 |