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Polina A. Volkova,Maria O. Ivanova,Ivan A. Dadykin,Nikita P. Tikhomirov,Maxim Y. Grigoryan,Yurii O. Kopylov-Guskov,Alexander A. Bobrov 국립중앙과학관 2020 Journal of Asia-Pacific Biodiversity Vol.13 No.4
Flora of the southern Kuril continental islands is extremely diverse due to the complex history of geologyand climate,fluctuating connections with other territories in the past, and the habitat diversity of thearchipelago. It is likely well-investigated due to the long history of botanical studies, andfloristicfindingsare expected only in taxonomically difficult plant groups. To test this assumption, we carried out a specialinvestigation of the aquatic vascular plants on the Lesser Kuril Ridge (isl. Shikotan, Polonskogo, Yurii,Tanfilieva, Zelyonyi) and isl. Kunashir. In line with our expectations, we revealed nine taxa that havenever been reported for the whole Kuril archipelago (including six new for Sakhalinfloristic province ofRussia:Potamogeton manchuriensis,P.sparganiifolius, P.variifolius, P.vepsicus, Sagittaria aginashi,Sparganium subglobosum); all of them are aquatic ones. We found 24 species that are new for the LesserKuril Ridge or the whole Southern Kurils from which only about a half were aquatic. Unexpectedly, wefound 53 mainly terrestrial species that are new for the Little Kurils (the Lesser Kuril Ridge withexception of isl. Shikotan), and substantially supplementedfloristic lists of each island.
Polina A. Volkova,Nikita P. Tikhomirov,Maria O. Ivanova,Ivan A. Dadykin,Yury O. Kopylov-Guskov,Alexander A. Bobrov 국립중앙과학관 2019 Journal of Asia-Pacific Biodiversity Vol.12 No.4
Floristic subdivision of the northern part of the Kuril archipelago (Russian Far East) remains controversial. Such uncertainty in biogeographical subdivision could be caused by insufficient floristic data dueto poor accessibility of mainly uninhabited northern Kuril islands. We aimed to explore the flora of thelargest uninhabited northern Kuril island Onekotan to clarify its position in floristic subdivision. All the19 species that we added to the known flora of Onekotan island grow on Paramushir and often on someother northern Kurils. Additionally, we revealed two species (Minuartia rubella and Poa lanata) that arenew for the whole Kuril archipelago. Our findings demonstrated that floristic similarity between Onekotanand the both large northern continental Kuril islands (Shumshu and Paramushir) is higher than itwas demonstrated before. However, discussion of floristic subdivision of the Northern Kurils is prematureunless all the islands are sufficiently studied.
Maria O. Ivanova,Polina A. Volkova,Yury A. Burlakov,Yury O. Kopylov-Guskov,Nikita P. Tikhomirov,Alexander A. Bobrov 국립중앙과학관 2021 Journal of Asia-Pacific Biodiversity Vol.14 No.4
The central part of the Kuril Archipelago (the Russian Far East) remains the least studied due to its pooraccessibility. Such insufficient floristic data lead to uncertainties in the floristic subdivision of the KurilIslands. We aimed to explore the vascular flora of the Simushir island, the largest one among the MiddleKurils. We revealed 24 new species for the flora of Simushir or Middle Kurils in general, including threespecies (Callitriche anceps, Carex meyeriana, and Ribes nigrum) that are new for the whole Kuril Archipelago. One-third of species new for Simushir are alien. Almost all the rest of the new species areassociated with special types of habitats and can be found only after a detailed study of the island. Wereported six new aquatic species for the Middle Kurils, refuting the earlier idea of extreme poverty of theMiddle Kurils’ aquatic flora. We found no grounds for drawing a floristic border within the Northern andMiddle Kurils, as the floristic similarity between Onekotan (oceanic Northern Kurils), continentalNorthern Kurils, and Simushir has the same magnitude.