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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Main Author: Bishop, Jordan
Other Authors: Kopalová, Kateřina, Hutňan Chattová, Barbora, Jüttner, Ingrid, van de Vijver, Bart
Format: Thesis
Language:English
Published: Univerzita Karlova, Přírodovědecká fakulta 2020
Subjects:
Online Access:https://hdl.handle.net/20.500.11956/121490
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spelling 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
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