scholarly journals Paragonimus westermani ichunensis and paragonimosis in the south of the Russian Far East: yesterday, today and tomorrow

2021 ◽  
Vol 15 (1) ◽  
pp. 42-49
Author(s):  
Yu. A. Belov ◽  
A. N. Voronova ◽  
E. N. Lyubchenko ◽  
T. V. Tabakaeva ◽  
I. P. Korotkova ◽  
...  
Keyword(s):  
Malignant Tumors ◽  
Russian Far East ◽  
Far East ◽  
Clinical Manifestations ◽  
Freshwater Crayfish ◽  
Intermediate Hosts ◽  
The South ◽  
Paragonimus Westermani ◽  
Population Restoration ◽  
The Russian Far East

Paragonimosis is a severe parasitic disease, which causative agent (on the territory of Russia, trematode Paragonimus westermani ichunensis Chung, Hsu et Kao, 1978) circulates in the south of the Far East. Two forms of paragonimosis are known: pulmonary and muscular (larval) with clinical manifestations like diseases of a different etiology, mimicking the symptoms of malignant tumors, and in cases of late diagnosis and improper treatment, leading to death. Long-term studies of the ecology and biology of the parasite, as well as monitoring the incidence among residents of the southern Far East of Russia made it possible to analyze the situation with paragonimosis in the designated region. Based on the available data, until the mid-1990s, natural sites of disease were found almost everywhere in the river basins inhabited by mollusks of the genus Parajuga and crayfish of the genus Cambaroides as parasite intermediate hosts. During this period, according to official information, the population invasion rate reached 6%. Then, as a result of the mass extinction of freshwater crayfish, the population of P. westermani ichunensis was on the brink of survival, and from that moment on, the number of diagnosed cases of paragonimosis in the inhabitants of the region began to decline, down to zero in recent years. Currently, the population of crayfish Cambaroides is reviving and a case of P. westermani ichunensis infestation of a tiger cub has been recorded, which indicates the population restoration of the parasite itself. This indicates the functioning resumption of the Paragonimus sp. infection centers in the south of the Russian Far East. It is necessary to be prepared for the possibility of an exponential growth in the number of infected animals with such a developmentтof events. Due to the complexity of the disease diagnosing and the lack of certain knowledge about the parasite biology among the majority of medical workers, it is necessary to be ready to low detection rate among the region population.

Устойчивые сорта корнеплодов в муссонном климате юга Дальнего Востока России

2018 ◽  
Author(s):  
Y.G. Mikheev ◽  
I.A. Vanyushkina ◽  
V.I. Leunov
Keyword(s):  
High Resistance ◽  
Geographical Origin ◽  
Russian Far East ◽  
Far East ◽  
Source Material ◽  
The South ◽  
Root Crops ◽  
The Russian Far East ◽  
Resistance To Diseases

Представлены результаты изучения исходного материала столовой моркови и свеклы разного эколого-географического происхождения по устойчивости к патогенной флоре. Для условий Дальнего Востока созданы высокопродуктивные, устойчивые к патогенам сорта и гибриды столовых корнеплодов.The article presents the results of the study of the source material of table carrots and beets of different ecological and geographical origin for resistance to diseases. Geniuses for breeding of high-productive variety samples of root crops with rather high resistance to diseases in the conditions of the South of the Russian Far East are revealed.

scholarly journals New species of the genus Ypsolopha Latreille, 1796 (Lepidoptera: Ypsolophidae) from the south of the Russian Far East

2020 ◽  
Vol 421 ◽  
pp. 14-26
Author(s):  
M.G. Ponomarenko ◽  
◽  
Keyword(s):  
New Species ◽  
Genetic Distance ◽  
East Asian ◽  
Russian Far East ◽  
Far East ◽  
The South ◽  
Asian Species ◽  
A New Species ◽  
The Russian Far East

An analysis of the mtCOI sequences in the species from the genus Ypsolopha Latreille, 1796 made it possible to confirm a new species for science, Y. occultatella sp. n., morphologically similar to the East Asian species Y. yasudai Moriuti, 1964. The genetic distance between the mtCOI sequences in Y. occultatella sp. n. and Y. yasudai is 0,066–0,069 (6,6–6,9 %). However, the minimal genetic distance, 0,038–0,042 (3,8–4,2 %), was determined between the mtCOI sequences of the new species and Y. blandella (Christoph, 1882), while these species differ well in the forewing pattern.

Checklist of oribatid mites (Acari, Oribatida) of the Russian Far East and Northeast of China

Zootaxa ◽  
2018 ◽  
Vol 4472 (2) ◽  
pp. 201 ◽  
Author(s):  
NIKOLAY A. RYABININ ◽  
DONG LIU ◽  
MEIXIANG GAO ◽  
DONG-HUI WU
Keyword(s):  
Russian Far East ◽  
Far East ◽  
Historical Review ◽  
Oribatid Mites ◽  
The South ◽  
North East ◽  
The Far East ◽  
Late Tertiary ◽  
Northeast Of China ◽  
The Russian Far East

The present paper reviews the taxonomic studies of the mite suborder Oribatida in the Russian Far East South and Chinese North-East Territories. At present, 746 species of oribatid mites are registered in China, including 175 species in the soils of Northeast China. In the Russian Far East, there were 605 species of oribatids, including 344 species in the south of the Far East. The fauna of the oribatid mites of the Northeast of China and the south of the Russian Far East has 446 species and subspecies representing 190 genera and 80 families. 72 species of oribatid are common for both territories. The modern fauna of the oribatid mites of the Northeast of China and the south of the Far East was formed as a result of prolonged interaction between the boreal and palaearchaearctic faunas. The oribatid fauna of this region is distinguished by the presence of a large number of endemics, some of which are relics of the late Tertiary time and which can be considered as autochthonous. The checklist includes data from more than 100 locations of this enormous region. In addition, a short climatic and historical review of oribatid mites study is presented. 

Entomologists – the Austro-Hungarian army prisoners of World War I in Siberia and the Russian Far East

2021 ◽  
Vol 32 ◽  
pp. 5-24
Author(s):  
E.V. Novomodnyi ◽  
◽  
E.A. Beljaev ◽  
Keyword(s):  
World War I ◽  
Russian Far East ◽  
Far East ◽  
World War ◽  
The South ◽  
Biographical Information ◽  
Geographical Society ◽  
Mass Collection ◽  
The Russian Far East

The participation of European entomologists from among the Austro- Hungarian army prisoners of World War I in the research of the Siberian and Amur entomofauna is considered. Despite the fact that they were doing this in conditions of lack of freedom, their mass collection yielded appreciable results. The biographical information about Karl Ferdinand Mandl (1891– 1989), Stepan Jurechek (1877–1940), Hermann Frib (1877–1947), Josef Michel (1890–1963) and Alfred Biener (1892(?)–1954), which are known from publications of entomologists processed their collections or materials, is given. Some little-known events from the activities in the South Ussuriysk branch of the Amur department of the Russian Geographical Society in Nikolsk-Ussuriysk, and in the life of Evgenia Nikolaevna Klobukova-Alisova (1889–1962) and Alexei Ivanovich Kurentsov (1896–1975) are described. The translation of memories on this time by A. Biener is included in the Appendix.

Sign in / Sign up

Export Citation Format

Share Document