CHATTOVÁ, Barbora, Marc LEBOUVIER and Bart VAN DE VIJVER. Freshwater diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean). Fottea. Czech Phycological Society, 2014, vol. 14, No 1, p. 101-119. ISSN 1802-5439.
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Basic information
Original name Freshwater diatom communities from Ile Amsterdam (TAAF, southern Indian Ocean)
Authors CHATTOVÁ, Barbora (203 Czech Republic, guarantor, belonging to the institution), Marc LEBOUVIER (250 France) and Bart VAN DE VIJVER (56 Belgium).
Edition Fottea, Czech Phycological Society, 2014, 1802-5439.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10600 1.6 Biological sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW http://fottea.czechphycology.cz/_contents/F14-1-2014-08.pdf
Impact factor Impact factor: 1.930
RIV identification code RIV/00216224:14310/14:00079767
Organization unit Faculty of Science
UT WoS 000334587400008
Keywords in English Bacillariophyta; biogeography; ecology; Ile Amsterdam; southern Indian Ocean; sub-Antarctic region
Tags AKR, rivok
Changed by Changed by: Mgr. Lucie Jarošová, DiS., učo 205746. Changed: 8/3/2018 14:54.
Abstract
Diatom and water chemistry samples were collected during the austral summer of 2007 from lakes, streams and bogponds on Ile Amsterdam (TAAF), a small island located in the southern Indian Ocean. A diverse diatom flora of 104 taxa was found, dominated by several Pinnularia taxa, Frustulia lebouvieri, Kobayasiella subantarctica, Eunotia paludosa, E. muscicola and Planothidium subantarcticum. Biogeographically, the Ile Amsterdam freshwater diatom flora is composed of cosmopolitan, sub-Antarctic and endemic elements. The biogeographical analysis showed that almost 17% of all observed taxa can be considered endemic to Ile Amsterdam with an additional 14% showing an exclusive sub-Antarctic distribution. The flora can be considered as typical for oceanic islands based on its disharmonic composition with several genera lacking and other being overrepresented. Canonical Component Analysis was used to classify the samples based on their chemical characteristics, revealing that, specific conductance, sulphate and pH were the main factors dividing the samples into four different groups. The geological history of the island in combination with the climate and the specific environmental features of the main habitat in the Caldera most likely shaped the composition of the actual diatom communities
Links
MUNI/A/0757/2012, interní kód MUName: Diverzita, ekologie, biogeografie a evoluce flóry a vegetace a jejich vztahy k jiným taxonomickým skupinám (Acronym: DEBEF)
Investor: Masaryk University, Category A
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