scholarly journals The Euro-Siberian geographical element flora structure of the Middle Siberia forest-steppes

2018 ◽  
Vol 7 (1) ◽  
pp. 15-19
Author(s):  
Ekaterina Mikhailovna Antipova
Keyword(s):  
Species Composition ◽  
Vascular Plants ◽  
Russian Far East ◽  
Far East ◽  
The North ◽  
The Earth ◽  
Geographical Elements ◽  
Middle Siberia ◽  
Geographical Element ◽  
The Russian Far East

The structure of geographical (arealogical) elements is one of the most important flora characteristics, because genetic composite groups are established on the basics of generic and species areas analysis and regularities of flora formation are determined. The object of the research is a complete species composition of vascular plants, revealed within the boundaries of the researched forest-steppes - Krasnoyarsk, Kansk and Achinsk (Krasnoyarsk Region). The North forest-steppes flora was detected by the specific flora method established by A.I. Tolmachev. The aim of this work is to summarize materials of the Euro-Siberian geographical element flora structure in the North forest-steppes ecosystems of the Middle Siberia with the characteristics of geographical elements selected on the basis of the fitohorions concept. It is based on the accordance principle of species distribution to natural (Botanical-geographical) zoning of the Earth. To determine the areas we used modern planetary floristic zoning established by A.L. Takhtajan with some amendments: floristic zoning by L.I. Malysheva was taken into account to Siberia, etc., the Russian Far East - by R.V. Camelina. As a result of the work geographical elements of the boreal group were assigned: Circumboreal (133 species, 9,6% of the whole flora), Eurosiberian (384 species, 27,7%), Pontic-South Siberian (81 species, 5,85%), Siberian (154 species, 11,12%).

scholarly journals To the formation of the biodiversity of the Russian Far East

2020 ◽  
Vol 19 (1) ◽  
pp. 191-197
Author(s):  
V. M. Urusov ◽  
L. I. Varchenko
Keyword(s):  
Plant Species ◽  
Late Pleistocene ◽  
Vascular Plants ◽  
Russian Far East ◽  
Far East ◽  
The West ◽  
Steppe Species ◽  
The North ◽  
Permafrost Soils ◽  
The Russian Far East

Plants diversity and riches of specific floras in the Russia’s Far East is determined not only and not somuch by a modern ecotopes diversity, as by the expression in the stale of the limit of permafrost soils, by the spread ofconsolidated boreal-nemoral ecosystems, by the situation of the Holocene boundary, ancient and early Holocene, presenceof the "small" and “big” migratory ways promoted the savings of a vascular plants diversity (RSR) by all praterritory, andthe “bridges” of a land. These bridges provided, first, resettlement of plant species from the West in dry late Pleistocene,updating of floras by Daurian-Mongolian steppe species, secondly, by returning of the species lost in the cold periods dueto their migration from the south, from refuges, by presence of refuges from fire, and elementary pyrogenic degradationof flora and vegetation reduces RSR on the order. However to the north from 50º N. L. on continent and Sakhalin islandand with 46º N. L., from Urup island on the Greater Kuril Islands refuges and isolates for maintenance high RSR has novalue or even it reduces, preserving more cold-resistant and cold-loving flora. Poverty of flora of coasts of KamchatkaPeninsula is connected with this phenomenon.

U.S.-Russian Relations and the North Korean Crisis: A Role for the Russian Far East?

Asian Survey ◽  
2005 ◽  
Vol 45 (5) ◽  
pp. 722-735 ◽  
Author(s):  
James Clay Moltz
Keyword(s):  
United States ◽  
North Korea ◽  
Russian Far East ◽  
Far East ◽  
The United States ◽  
Energy Reserves ◽  
Nuclear Program ◽  
The North ◽  
History Of ◽  
The Russian Far East

Because of its energy reserves and long history of economic links with North Korea, the Russian Far East could provide useful incentives needed to help convince Pyongyang to abandon its nuclear program. For this reason, the United States should begin crafting a regionally based strategy that includes Russia.

scholarly journals THE FORMATION OF THE CONSORTIA RELATIONS OF MOLIPTERYX FULIGINOSA (UHLER, 1860) (HEMIPTERA, COREIDAE) WITH AMBROSIA ARTEMISIIFOLIA IN THE PRIMORSKII KRAI OF RUSSIA

2019 ◽  
Vol 21 ◽  
pp. 90-99
Author(s):  
Elena V. Aistova ◽  
Vitaliy G. Bezborodov ◽  
Tatyana O. Markova ◽  
Mikhail V. Maslov ◽  
Lyubov A. Fedina
Keyword(s):  
Biological Control ◽  
Invasive Species ◽  
20Th Century ◽  
Russian Far East ◽  
Far East ◽  
Ambrosia Artemisiifolia ◽  
Primorskii Krai ◽  
The North ◽  
First Time ◽  
The Russian Far East

Currently, invasive species spreading is becoming a key problem on the global scale. Scope of invasive species control get solved at governmental level in many countries; hundreds of billions dollars a year are allocated as financial support; global programs are created. For the first time, biological control of invasive species Ambrosia artemisiifolia using an introduced phytophage insect was applied in Russia (former USSR) in the 60-70s years of the 20th century and it remains a unique large-scale example until to nowadays. Ambrosia leaf beetle (Zygogramma suturalis (Fabricius, 1775) was brought to the Russian Far East for biological control of Ambrosia artemisiifolia in the 80-90s years of the 20th century for the first time, however the targeted result was not achieved. At present, Zygogramma suturalis were adapted at the Primorskii Krai in the south of the Far East, but due to climatic conditions its numbers are low and, as a result, the impact on ambrosia is minimal. The search for native insect species with capable of effectively suppressing the spread of aggressive quarantine weed in local conditions remains in the area of focus. At the moment, two species of native leaf beetles have been identified, using Ambrosia as an additional element in the diet. Climate changes and the shift of biogeographic boundaries cause the natural expansion of the areals of some East Asian insect species to the north within the Russian Far East. Bug-edge Molipteryx fuliginosa (Uhler, 1860) is one of such species. Expanding the area to the north and east, the species also corrects trophic preferences. As a result of our research in the south of Primorskii Krai, the trophic relations of Molipteryx fuliginosa were studied in the field conditions and in rearing cages. The same work was carried out in places where Ambrosia artemisiifolia were growing in a great number. For insects observing were used standard methods. As a result, firstly was established and confirmed that the bug-edge uses Ambrosia artemisiifolia as a feed plant only in select developmental stages, including imago. The feeding of larvae of IV – V ages was noted in natural conditions. The long-time Molipteryx fuliginosa development cycle on ambrosia leads to break the course of normal plant ontogenesis and causes wilting of individual organs.

scholarly journals Chromosome Numbers in Vascular Plants from the Russian Far East: Amurskaya Oblast', Khabarovskii Krai, Primorskii Krai

2014 ◽  
Vol 3 (2) ◽  
pp. 129-134
Author(s):  
Nina S. Probatova ◽  
◽  
Elvira G. Rudyka ◽  
Vitaly P. Seledets ◽  
Tatiana N. Motorykina ◽  
...  
Keyword(s):  
Chromosome Numbers ◽  
Vascular Plants ◽  
Russian Far East ◽  
Far East ◽  
Primorskii Krai ◽  
The Russian Far East
Sign in / Sign up

Export Citation Format

Share Document