No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica
Abstract Dispersal of dioecious floating seaweeds could be limited due to biological constraints. This study examined for benthic and floating populations (stranded individuals) of the rafting kelp Durvillaea antarctica whether male and female individuals cohabit within one holdfast. As a previous s...
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crdegruyter:10.1515/bot-2015-0072 2023-05-15T14:08:35+02:00 No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica Lizée-Prynne, Dominic López, Boris Tala, Fadia Thiel, Martin 2016 http://dx.doi.org/10.1515/bot-2015-0072 https://www.degruyter.com/document/doi/10.1515/bot-2015-0072/xml https://www.degruyter.com/document/doi/10.1515/bot-2015-0072/pdf en eng Walter de Gruyter GmbH Botanica Marina volume 59, issue 1, page 39-50 ISSN 1437-4323 0006-8055 Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2016 crdegruyter https://doi.org/10.1515/bot-2015-0072 2022-06-16T13:41:58Z Abstract Dispersal of dioecious floating seaweeds could be limited due to biological constraints. This study examined for benthic and floating populations (stranded individuals) of the rafting kelp Durvillaea antarctica whether male and female individuals cohabit within one holdfast. As a previous study had indicated colour differences between sexes, we also examined whether these colour differences are consistent and possibly related to pigment and phlorotannin concentrations. Our large-scale survey of rafted holdfasts and a small-scale survey of benthic holdfasts at two sites found that reproductive males and females do travel together in coalesced holdfasts, although this proportion is relatively low (5–17%). There were no sex-specific differences in pigment and phlorotannin concentrations, but there were significant differences between the two benthic populations. There was no relationship between the colouration of thalli and the concentration of pigments but there was a slight colour difference between vegetative and reproductive sexual stages. Based on these results we conclude that biological conditions are not the cause for the lack of genetic connectivity between D. antarctica populations from central Chile. Instead, we suggest that ecological processes, such as density-blocking and physical factors (i.e. currents and winds), limit the potential for successful rafting dispersal. Article in Journal/Newspaper Antarc* Antarctica De Gruyter (via Crossref) Traveller ENVELOPE(-48.533,-48.533,61.133,61.133) Holdfast ENVELOPE(-66.590,-66.590,-66.803,-66.803) Botanica Marina 59 1 |
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Open Polar |
collection |
De Gruyter (via Crossref) |
op_collection_id |
crdegruyter |
language |
English |
topic |
Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics Lizée-Prynne, Dominic López, Boris Tala, Fadia Thiel, Martin No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica |
topic_facet |
Plant Science Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Dispersal of dioecious floating seaweeds could be limited due to biological constraints. This study examined for benthic and floating populations (stranded individuals) of the rafting kelp Durvillaea antarctica whether male and female individuals cohabit within one holdfast. As a previous study had indicated colour differences between sexes, we also examined whether these colour differences are consistent and possibly related to pigment and phlorotannin concentrations. Our large-scale survey of rafted holdfasts and a small-scale survey of benthic holdfasts at two sites found that reproductive males and females do travel together in coalesced holdfasts, although this proportion is relatively low (5–17%). There were no sex-specific differences in pigment and phlorotannin concentrations, but there were significant differences between the two benthic populations. There was no relationship between the colouration of thalli and the concentration of pigments but there was a slight colour difference between vegetative and reproductive sexual stages. Based on these results we conclude that biological conditions are not the cause for the lack of genetic connectivity between D. antarctica populations from central Chile. Instead, we suggest that ecological processes, such as density-blocking and physical factors (i.e. currents and winds), limit the potential for successful rafting dispersal. |
format |
Article in Journal/Newspaper |
author |
Lizée-Prynne, Dominic López, Boris Tala, Fadia Thiel, Martin |
author_facet |
Lizée-Prynne, Dominic López, Boris Tala, Fadia Thiel, Martin |
author_sort |
Lizée-Prynne, Dominic |
title |
No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica |
title_short |
No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica |
title_full |
No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica |
title_fullStr |
No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica |
title_full_unstemmed |
No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp Durvillaea antarctica |
title_sort |
no sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: the bull kelp durvillaea antarctica |
publisher |
Walter de Gruyter GmbH |
publishDate |
2016 |
url |
http://dx.doi.org/10.1515/bot-2015-0072 https://www.degruyter.com/document/doi/10.1515/bot-2015-0072/xml https://www.degruyter.com/document/doi/10.1515/bot-2015-0072/pdf |
long_lat |
ENVELOPE(-48.533,-48.533,61.133,61.133) ENVELOPE(-66.590,-66.590,-66.803,-66.803) |
geographic |
Traveller Holdfast |
geographic_facet |
Traveller Holdfast |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Botanica Marina volume 59, issue 1, page 39-50 ISSN 1437-4323 0006-8055 |
op_doi |
https://doi.org/10.1515/bot-2015-0072 |
container_title |
Botanica Marina |
container_volume |
59 |
container_issue |
1 |
_version_ |
1766280604360376320 |