Rare ferns of the Amur region (Russia)
Biosciences Biotechnology Research Asia, ISSN: 0973-1245, Vol: 11, Issue: Spl Edition Nov. 14, Page: 269-275
2014
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
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Article Description
Rare fern species of Amur region are identified. These ferns have unstable positions in plant communities and need in conservation. The reasons for their rarity and limitative factors are identified. 21 fern species are rare on the Amur region territory, 10 fern species among them are known only from one location. The most endangered species are Leptolepidium kuhnii (Milde) Hsing et S.K. Wu, Protowoodsia manchuriensis (Hook.) Ching and A. tenuicaule Hayata. Most of rare ferns grow as isolated individuals, they have difficulties in spore and vegetative reproduction. Both Khingan and Zeya State Reserves are the territories of concentration of rare ferns: 8 and 6 rare ferns respectively inhabit here. Some approaches to conservation of rare species are suggested.
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