南设得兰群岛乔治国王岛生态冰川前陆的淡水硅藻

IF 0.9 4区地球科学 Q4 ECOLOGY

Polish Polar Research Pub Date : 2018-01-01 DOI:10.24425/118753

Natalia KOCHMAN-KĘDZIORA, T. Noga, M. Olech, B. Vijver

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引用次数: 4

摘要

研究了生态冰川前田小池塘和小溪中的硅藻组合。这是对南极非海洋硅藻区系进行全面分类修订后，首次在金钟湾地区进行的研究。共鉴定出硅藻类群122个，隶属于35属。在所有观察到的物种中，超过55%的物种在南极的分布受到限制。另有15%来自海洋。niczschia gracilis Hantzsch、N. homburgiensis Lange-Bertalot和Planothidium rostrolanceolatum Van de Vijver等占主导地位。基于DCA分析，样本被细分为反映生态差异的三组。几个样品(第1组)显示淡水/海洋硅藻混合组成，是典型的沿海水池。另外两组是根据湖沼陆地分类群的数量划分的，这表明一些池的临时特征。

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Freshwater diatoms of the Ecology Glacier foreland, King George Island, South Shetland Islands

Diatom assemblages from small pools and creeks on the Ecology Glacier forefield have been investigated. It is the first study in the Admiralty Bay region after the thorough taxonomic revision of the non-marine Antarctic diatom flora. A total of 122 diatom taxa, belonging to 35 genera were identified. More than 55% of all observed species have a restricted Antarctic distribution. Another 15% have a marine origin. Nitzschia gracilis Hantzsch, N. homburgiensis Lange-Bertalot and Planothidium rostrolanceolatum Van de Vijver et al. dominated the flora. Based on a DCA analysis, samples were subdivided in three groups reflecting ecological differences. Several samples (group 1) showed a mixed freshwater/marine diatom composition and are typical for coastal pools. Two other groups were separated based on the amount of limnoterrestrial taxa indicating the temporary character of some of the pools.

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来源期刊

Polish Polar Research ECOLOGY-GEOSCIENCES, MULTIDISCIPLINARY

CiteScore

2.00

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： The quarterly Polish Polar Research edited by the Committee on Polar Research of the Polish Academy of Sciences is an international journal publishing original research articles presenting the results of studies carried out in polar regions. All papers are peer-reviewed and published in English. The Editorial Advisory Board includes renowned scientist from Poland and from abroad.