Russian Journal of Biological Invasions

, Volume 4, Issue 2, pp 69–73 | Cite as

Invasive component of flora in Khabarovsk krai

Article

Abstract

Results of the pioneering investigations of an invasive component of flora of Khabarovsk krai are given. Data on its species composition, structure, and distribution in the region under study are obtained. It is found that most plants have invasive status in the southern part of the krai. The degree of naturalization is lower outside this area and poses no threat of invasion. The main factors limiting the spread of phytoinvasions in the region are climatic features. Two climatic barriers limiting the spread of invasive species are identified. It is found that, in the southern part of Khabarovsk krai, the interval from adventitious species introduction until its ranking in the category of “invasive species” is 10–20 years. First, a gradual increase in the distribution area of such species occurs, and then it expands sharply. The invasive component of flora of Khabarovsk krai comprises 21 species, which is 5.3% of the total adventive flora of the region, and another nine species may eventually become invasive.

Keywords

adventitious species invasive species adventive flora of Khabarovsk krai degree of naturalization phytoinvasions invasive component of flora 

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Copyright information

© Pleiades Publishing, Ltd. 2013

Authors and Affiliations

  1. 1.Institute for Aquatic and Ecological Problems, Far East BranchRussian Academy of SciencesKhabarovskRussia

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