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The establishment of trophic associations between the native leaf beetle species and the adventive ragweed Ambrosia artemisiifolia in the territory of southern Primorskii Territory of Russia is considered. The native leaf beetles Neocrepidodera obscuritarsis (Motschulsky, 1859) and Chrysolina aurichalcea (Gebler in Mannerheim, 1825) feed on A.(More)
Two species of dodder are widespread in the Russian Far East—alien species Cuscuta campestris Yunck and native C. japonica Choisy (Cuscutaceae Dum.). For the first time we have identified individual species of Smicronyx genus in relation to specific dodder species as there was no such a research done in the Far East before. Smicronyx rubricatus Kono, 1930(More)
The article provides a brief analysis of alien flora in Amur Region, describes historical pattern of its formation and research. From 1855 to 2009 there were 217 species, 51 of which became completely extinct at different times, 32 species are only documented by records and 7 are still unidentified. At present the invasive flora in the region is represented(More)
The east-Asian species Pimpinella thellungiana H. Wolff (pimpernel) is a perennial herbaceous plant of the family Umbelliferae (Apiaceae) that is indigenous to Amur Oblast, Khabarovsky Krai (Priamurye), eastern Siberia (Dauriya), Mongolia, and central and northeastern China (Manchuria) and has spread to Primorsky Krai [1, 2]. The variety P. thellungiana H.(More)
The history of introduction and the current state of the populations and habitats of Zygogramma suturalis (Fabricius, 1775) in Primorskii Territory are reviewed. The introduction of Z. suturalis to the Russian Far East is shown to have failed to produce the desired result. After 30 years, the abundance of this species in Primorskii Territory is low and(More)
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