Diatoms define a novel freshwater biogeography of the Antarctic
Terrestrial biota in the Antarctic are more globally distinct and highly structured biogeographically than previously believed, but information on biogeographic patterns and endemism in freshwater communities is largely lacking. We studied biogeographic patterns of Antarctic freshwater diatoms based...
Main Authors: | , |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
Zenodo
2020
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.vt4b8gtqv |
id |
ftzenodo:oai:zenodo.org:4311829 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:4311829 2024-09-15T17:48:35+00:00 Diatoms define a novel freshwater biogeography of the Antarctic Tytgat, Bjorn Verleyen, Elie 2020-12-08 https://doi.org/10.5061/dryad.vt4b8gtqv unknown Zenodo https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.vt4b8gtqv oai:zenodo.org:4311829 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode benthic diatom communities info:eu-repo/semantics/other 2020 ftzenodo https://doi.org/10.5061/dryad.vt4b8gtqv 2024-07-27T03:48:31Z Terrestrial biota in the Antarctic are more globally distinct and highly structured biogeographically than previously believed, but information on biogeographic patterns and endemism in freshwater communities is largely lacking. We studied biogeographic patterns of Antarctic freshwater diatoms based on the analysis of species occurrences in a dataset of 439 lakes spread across the Antarctic realm. Highly distinct diatom floras, both in terms of composition and richness, characterize Continental Antarctica, Maritime Antarctica and the sub-Antarctic islands, with marked biogeographic provincialism in each region. A total of 44% of all species is estimated to be endemic to the Antarctic, and most of them are confined to a single biogeographic region. The level of endemism significantly increases with increasing latitude and geographic isolation. Our results have implications for conservation planning, and suggest that successful dispersal of freshwater diatoms to and within the Antarctic is limited, fostering the evolution of highly endemic diatom floras Other/Unknown Material Antarc* Antarctic Antarctica Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
benthic diatom communities |
spellingShingle |
benthic diatom communities Tytgat, Bjorn Verleyen, Elie Diatoms define a novel freshwater biogeography of the Antarctic |
topic_facet |
benthic diatom communities |
description |
Terrestrial biota in the Antarctic are more globally distinct and highly structured biogeographically than previously believed, but information on biogeographic patterns and endemism in freshwater communities is largely lacking. We studied biogeographic patterns of Antarctic freshwater diatoms based on the analysis of species occurrences in a dataset of 439 lakes spread across the Antarctic realm. Highly distinct diatom floras, both in terms of composition and richness, characterize Continental Antarctica, Maritime Antarctica and the sub-Antarctic islands, with marked biogeographic provincialism in each region. A total of 44% of all species is estimated to be endemic to the Antarctic, and most of them are confined to a single biogeographic region. The level of endemism significantly increases with increasing latitude and geographic isolation. Our results have implications for conservation planning, and suggest that successful dispersal of freshwater diatoms to and within the Antarctic is limited, fostering the evolution of highly endemic diatom floras |
format |
Other/Unknown Material |
author |
Tytgat, Bjorn Verleyen, Elie |
author_facet |
Tytgat, Bjorn Verleyen, Elie |
author_sort |
Tytgat, Bjorn |
title |
Diatoms define a novel freshwater biogeography of the Antarctic |
title_short |
Diatoms define a novel freshwater biogeography of the Antarctic |
title_full |
Diatoms define a novel freshwater biogeography of the Antarctic |
title_fullStr |
Diatoms define a novel freshwater biogeography of the Antarctic |
title_full_unstemmed |
Diatoms define a novel freshwater biogeography of the Antarctic |
title_sort |
diatoms define a novel freshwater biogeography of the antarctic |
publisher |
Zenodo |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.vt4b8gtqv |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.vt4b8gtqv oai:zenodo.org:4311829 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.vt4b8gtqv |
_version_ |
1810289963967709184 |