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Free-Living Nematodes in the Tundra of Western Taimyr

L. L. Kuzmin
Oikos
Vol. 27, No. 3 (1976), pp. 501-505
Published by: Wiley on behalf of Nordic Society Oikos
DOI: 10.2307/3543469
Stable URL: http://www.jstor.org/stable/3543469
Page Count: 5
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Free-Living Nematodes in the Tundra of Western Taimyr
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Abstract

During July and August in 1970 and 1971, 162 species of nematodes were collected in various tundra types on the Taimyr peninsula. They were divided into five ecological groups. Bacteriophages were dominant. The percentage of plant parasites was high in the herb/grass stands. The variation in abundance was generally very high and reached a factor of 100, while biomass varied by a factor of 250. Abundance was highest in the herb/grass stands. Generally, it may be stated that nematodes constitute the dominating part of the soil biocoenoses in the Arctic tundra. /// В течение июля-августа 1970 и 1971 гг. в разных типах тундры на Таймыре собрано 162 вида нематод. Среди них выделено 5 экологических групп. Среди нематод доминируют ьактериофаги. Процентное отношение фитопаразитов высоко в травянистых местообитаниях. Колебания численности очень большие, их фактор доститает 100, а фактор колебания биомассы - 250. Максимальное обилие зарегистрировано в разнотравно-злаковых местообитаниях. Можно сделать общее заключение, что нематоды составляют доминирующую группу в почвенных биогеоценозах арктической тундры.

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