Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica
Diatom metacommunities are structured by environmental, historical, and spatial factors that are often attributed to organism dispersal. In the McMurdo Sound region (MSR) of Antarctica, wind connects aquatic habitats through delivery of inorganic and organic matter. We evaluated the dispersal of dia...
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Online Access: | http://dx.doi.org/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/jpy.13223 |
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crwiley:10.1111/jpy.13223 2023-12-03T10:14:01+01:00 Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica Schulte, Nicholas O. Khan, Alia L. Smith, Emma W. Zoumplis, Angela Kaul, Drishti Allen, Andrew E. Adams, Byron J. McKnight, Diane M. Wetherbee, R. National Science Foundation 2021 http://dx.doi.org/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/jpy.13223 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 58, issue 1, page 36-54 ISSN 0022-3646 1529-8817 Plant Science Aquatic Science journal-article 2021 crwiley https://doi.org/10.1111/jpy.13223 2023-11-09T14:21:32Z Diatom metacommunities are structured by environmental, historical, and spatial factors that are often attributed to organism dispersal. In the McMurdo Sound region (MSR) of Antarctica, wind connects aquatic habitats through delivery of inorganic and organic matter. We evaluated the dispersal of diatoms in aeolian material and its relation to the regional diatom metacommunity using light microscopy and 18S rRNA high‐throughput sequencing. The concentration of diatoms ranged from 0 to 8.76 * 10 6 valves · g −1 dry aeolian material. Up to 15% of whole cells contained visible protoplasm, indicating that up to 3.43 * 10 4 potentially viable individuals could be dispersed in a year to a single 2 ‐cm 2 site. Diatom DNA and RNA was detected at each site, reinforcing the likelihood that we observed dispersal of viable diatoms. Of the 50 known morphospecies in the MSR, 72% were identified from aeolian material using microscopy. Aeolian community composition varied primarily by site. Meanwhile, each aeolian community was comprised of morphospecies found in aquatic communities from the same lake basin. These results suggest that aeolian diatom dispersal in the MSR is spatially structured, is predominantly local, and connects local aquatic habitats via a shared species pool. Nonetheless, aeolian community structure was distinct from that of aquatic communities, indicating that intrahabitat dispersal and environmental filtering also underlie diatom metacommunity dynamics. The present study confirms that a large number of diatoms are passively dispersed by wind across a landscape characterized by aeolian processes, integrating the regional flora and contributing to metacommunity structure and landscape connectivity. Article in Journal/Newspaper Antarc* Antarctica McMurdo Sound Wiley Online Library (via Crossref) McMurdo Sound Journal of Phycology 58 1 36 54 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Plant Science Aquatic Science |
spellingShingle |
Plant Science Aquatic Science Schulte, Nicholas O. Khan, Alia L. Smith, Emma W. Zoumplis, Angela Kaul, Drishti Allen, Andrew E. Adams, Byron J. McKnight, Diane M. Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica |
topic_facet |
Plant Science Aquatic Science |
description |
Diatom metacommunities are structured by environmental, historical, and spatial factors that are often attributed to organism dispersal. In the McMurdo Sound region (MSR) of Antarctica, wind connects aquatic habitats through delivery of inorganic and organic matter. We evaluated the dispersal of diatoms in aeolian material and its relation to the regional diatom metacommunity using light microscopy and 18S rRNA high‐throughput sequencing. The concentration of diatoms ranged from 0 to 8.76 * 10 6 valves · g −1 dry aeolian material. Up to 15% of whole cells contained visible protoplasm, indicating that up to 3.43 * 10 4 potentially viable individuals could be dispersed in a year to a single 2 ‐cm 2 site. Diatom DNA and RNA was detected at each site, reinforcing the likelihood that we observed dispersal of viable diatoms. Of the 50 known morphospecies in the MSR, 72% were identified from aeolian material using microscopy. Aeolian community composition varied primarily by site. Meanwhile, each aeolian community was comprised of morphospecies found in aquatic communities from the same lake basin. These results suggest that aeolian diatom dispersal in the MSR is spatially structured, is predominantly local, and connects local aquatic habitats via a shared species pool. Nonetheless, aeolian community structure was distinct from that of aquatic communities, indicating that intrahabitat dispersal and environmental filtering also underlie diatom metacommunity dynamics. The present study confirms that a large number of diatoms are passively dispersed by wind across a landscape characterized by aeolian processes, integrating the regional flora and contributing to metacommunity structure and landscape connectivity. |
author2 |
Wetherbee, R. National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Schulte, Nicholas O. Khan, Alia L. Smith, Emma W. Zoumplis, Angela Kaul, Drishti Allen, Andrew E. Adams, Byron J. McKnight, Diane M. |
author_facet |
Schulte, Nicholas O. Khan, Alia L. Smith, Emma W. Zoumplis, Angela Kaul, Drishti Allen, Andrew E. Adams, Byron J. McKnight, Diane M. |
author_sort |
Schulte, Nicholas O. |
title |
Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica |
title_short |
Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica |
title_full |
Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica |
title_fullStr |
Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica |
title_full_unstemmed |
Blowin’ in the wind: Dispersal, structure, and metacommunity dynamics of aeolian diatoms in the McMurdo Sound region, Antarctica |
title_sort |
blowin’ in the wind: dispersal, structure, and metacommunity dynamics of aeolian diatoms in the mcmurdo sound region, antarctica |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/jpy.13223 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/jpy.13223 |
geographic |
McMurdo Sound |
geographic_facet |
McMurdo Sound |
genre |
Antarc* Antarctica McMurdo Sound |
genre_facet |
Antarc* Antarctica McMurdo Sound |
op_source |
Journal of Phycology volume 58, issue 1, page 36-54 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jpy.13223 |
container_title |
Journal of Phycology |
container_volume |
58 |
container_issue |
1 |
container_start_page |
36 |
op_container_end_page |
54 |
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1784261068752683008 |