Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica.
Diatoms are single-celled photosynthetic eukaryotes that substantially contribute to global primary productivity. They are also among the most diverse groups of organisms in Antarctica. Biogeographically, Antarctica is divided into three distinct regions including the Sub-Antarctic, Maritime Antarct...
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Univerzita Karlova, Přírodovědecká fakulta
2020
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ftunivpraha:oai:https://dspace.cuni.cz:20.500.11956/121490 2023-08-20T04:02:24+02:00 Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. Ekologie a taxonomie limno-terestrických rozsivek z Východní Antarktidy. Bishop, Jordan Kopalová, Kateřina Hutňan Chattová, Barbora Jüttner, Ingrid van de Vijver, Bart 2020 application/pdf https://hdl.handle.net/20.500.11956/121490 English en_US eng Univerzita Karlova, Přírodovědecká fakulta http://hdl.handle.net/20.500.11956/121490 184418 002384478 diatoms Antarctica taxonomy biogeography ecology rozsivky Antarktida taxonomie biogeografie ekologie dizertační práce 2020 ftunivpraha https://doi.org/20.500.11956/121490 2023-08-01T20:31:48Z Diatoms are single-celled photosynthetic eukaryotes that substantially contribute to global primary productivity. They are also among the most diverse groups of organisms in Antarctica. Biogeographically, Antarctica is divided into three distinct regions including the Sub-Antarctic, Maritime Antarctic, and Continental Antarctic. Recent taxonomic revisions of diatoms within the Sub-Antarctic and Maritime Antarctic Regions have uncovered a number of endemic taxa initially misidentified as cosmopolitan due to species "force-fitting". Within Continental Antarctica, this taxonomic uncertainty has led to confusion about the environmental drivers of limno-terrestrial diatom communities, although this knowledge is important given the use of diatoms as regional bioindicators for environmental change. The purpose of this dissertation is to reevaluate the diatom flora of Continental Antarctica and determine variables that structure their communities within two historically and biologically important localities within East Antarctica; the Vestfold Hills and Windmill Islands. The erection of the genus Sabbea was performed to accommodate a long-misidentified species, Sabbea adminensis, that occurs within the Vestfold Hills and McMurdo Sound Region where it had been the source of taxonomic confusion since the. Rozsivky jsou jednobuněčné fotosyntetické eukaryotní organismy významně přispívající ke globální primární produkci. Zároveň v Antarktidě patří mezi druhově nejrozmanitější skupinu organismů. Z pohledu biogeografie, Antarktidu tradičně dělíme na tři oblasti a to subantarktickou, přímořskou a kontinentální Antarktidu. Nové taxonomické revize rozsivek v subarktické a přímořské oblasti v nedávné době odhalily řadu endemických druhů, které byly v minulosti špatně určeny a zařazeny mezi kosmopolitní druhy. Nejen v rámci kontinentální Antarktidy vedla tato taxonomická nepřesnost například ke zkresleným závěrům v rámci environmentálních faktorů ovlivňujících společenstva limno-terestrický rozsivek. Tato znalost je důležitá ... Thesis Antarc* Antarctic Antarctica East Antarctica McMurdo Sound Windmill Islands Charles University CU Digital repository Antarctic East Antarctica McMurdo Sound Vestfold Vestfold Hills Windmill Islands ENVELOPE(110.417,110.417,-66.350,-66.350) |
institution |
Open Polar |
collection |
Charles University CU Digital repository |
op_collection_id |
ftunivpraha |
language |
English |
topic |
diatoms Antarctica taxonomy biogeography ecology rozsivky Antarktida taxonomie biogeografie ekologie |
spellingShingle |
diatoms Antarctica taxonomy biogeography ecology rozsivky Antarktida taxonomie biogeografie ekologie Bishop, Jordan Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. |
topic_facet |
diatoms Antarctica taxonomy biogeography ecology rozsivky Antarktida taxonomie biogeografie ekologie |
description |
Diatoms are single-celled photosynthetic eukaryotes that substantially contribute to global primary productivity. They are also among the most diverse groups of organisms in Antarctica. Biogeographically, Antarctica is divided into three distinct regions including the Sub-Antarctic, Maritime Antarctic, and Continental Antarctic. Recent taxonomic revisions of diatoms within the Sub-Antarctic and Maritime Antarctic Regions have uncovered a number of endemic taxa initially misidentified as cosmopolitan due to species "force-fitting". Within Continental Antarctica, this taxonomic uncertainty has led to confusion about the environmental drivers of limno-terrestrial diatom communities, although this knowledge is important given the use of diatoms as regional bioindicators for environmental change. The purpose of this dissertation is to reevaluate the diatom flora of Continental Antarctica and determine variables that structure their communities within two historically and biologically important localities within East Antarctica; the Vestfold Hills and Windmill Islands. The erection of the genus Sabbea was performed to accommodate a long-misidentified species, Sabbea adminensis, that occurs within the Vestfold Hills and McMurdo Sound Region where it had been the source of taxonomic confusion since the. Rozsivky jsou jednobuněčné fotosyntetické eukaryotní organismy významně přispívající ke globální primární produkci. Zároveň v Antarktidě patří mezi druhově nejrozmanitější skupinu organismů. Z pohledu biogeografie, Antarktidu tradičně dělíme na tři oblasti a to subantarktickou, přímořskou a kontinentální Antarktidu. Nové taxonomické revize rozsivek v subarktické a přímořské oblasti v nedávné době odhalily řadu endemických druhů, které byly v minulosti špatně určeny a zařazeny mezi kosmopolitní druhy. Nejen v rámci kontinentální Antarktidy vedla tato taxonomická nepřesnost například ke zkresleným závěrům v rámci environmentálních faktorů ovlivňujících společenstva limno-terestrický rozsivek. Tato znalost je důležitá ... |
author2 |
Kopalová, Kateřina Hutňan Chattová, Barbora Jüttner, Ingrid van de Vijver, Bart |
format |
Thesis |
author |
Bishop, Jordan |
author_facet |
Bishop, Jordan |
author_sort |
Bishop, Jordan |
title |
Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. |
title_short |
Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. |
title_full |
Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. |
title_fullStr |
Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. |
title_full_unstemmed |
Ecology and Taxonomy of limno-terrestrial diatoms from East Antarctica. |
title_sort |
ecology and taxonomy of limno-terrestrial diatoms from east antarctica. |
publisher |
Univerzita Karlova, Přírodovědecká fakulta |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.11956/121490 |
long_lat |
ENVELOPE(110.417,110.417,-66.350,-66.350) |
geographic |
Antarctic East Antarctica McMurdo Sound Vestfold Vestfold Hills Windmill Islands |
geographic_facet |
Antarctic East Antarctica McMurdo Sound Vestfold Vestfold Hills Windmill Islands |
genre |
Antarc* Antarctic Antarctica East Antarctica McMurdo Sound Windmill Islands |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica McMurdo Sound Windmill Islands |
op_relation |
http://hdl.handle.net/20.500.11956/121490 184418 002384478 |
op_doi |
https://doi.org/20.500.11956/121490 |
_version_ |
1774712835988783104 |