Ecological Analysis of Cyanoprokaryotes of the Svalbard Archipelago

IF 0.7 4区环境科学与生态学 Q4 ECOLOGY Contemporary Problems of Ecology Pub Date : 2024-07-27 DOI:10.1134/s1995425524700264

D. A. Davydov

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Abstract—

An analysis of the ecological characteristics of cyanobacteria of the Svalbard Archipelago was carried out. Two groups of habitats (aquatic and terrestrial ones) were identified. The degree of water saturation was the main factor determining the development of cyanobacteria. The variability of habitats can be represented as a gradient of moisture from typically aquatic to subaerophytic and dry terrestrial habitats. Based on the number of finds and species richness, the most favorable habitats for cyanobacteria in Svalbard were as follows: (1) rocky communities under conditions of sufficient moisture, (2) exposed soil surfaces on which biological soil crusts were formed, (3) well-warmed slow streams, and (4) specific waterlogged habitats, such as seepages. Using the example of the analysis of the ecological characteristics of species growing on the archipelago, the concept of eurybiont properties of cyanobacteria was shown to be inconsistent. The greatest plasticity was exhibited by Nostoc commune Vauch. ex Born. et Flah., Microcoleus autumnalis (Trev. ex Gom.) Strunecky et al., Calothrix parietina Thur. ex Born. et Flah., Oscillatoria tenuis C. Ag. ex Gom., and Pseudanabaena frigida (Fritsch) Anagn. All species, including those mentioned above, had obvious ecological preferences. An analysis of the substrate specificity of cyanprokaryotes indicated that the greatest number of their species was found in soil, rocky substrates, and moss-like environments.

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斯瓦尔巴群岛蓝藻生物生态分析

摘要--对斯瓦尔巴群岛蓝藻的生态特征进行了分析。确定了两类栖息地（水生栖息地和陆生栖息地）。水的饱和度是决定蓝藻发展的主要因素。从典型的水生生境到亚水生生境和干燥的陆生生境，可将生境的变化表现为一个湿度梯度。根据发现的数量和物种丰富程度，斯瓦尔巴特最适合蓝藻生长的生境如下：(1)水分充足的岩石群落；(2)形成生物土壤结壳的裸露土壤表面；(3)温暖的缓流；(4)特定的积水生境，如渗漏。通过对生长在群岛上的物种的生态特征进行分析，发现蓝藻的 "极性 "概念并不一致。可塑性最强的是 Nostoc commune Vauch.包括上述物种在内的所有物种都有明显的生态偏好。对蓝藻原核生物基质特异性的分析表明，在土壤、岩石基质和苔藓类环境中发现的蓝藻原核生物种类最多。

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来源期刊

Contemporary Problems of Ecology 环境科学-生态学

CiteScore

1.40

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Contemporary Problems of Ecology is a multidisciplinary periodical that publishes original works on the following subjects: theoretical and methodical issues of ecology, regional aspects of ecology, regional ecological disasters, structure and functioning of ecosystems, anthropogenic transformation of ecosystems. All basic aspects of modern ecology, including the most complicated interactions between living organisms and their environment, are presented. Some of the journal issues are dedicated to global changes in biological diversity at various levels of organization (populations, species, ecosystems) principles and methods of nature conservation.