scholarly journals Larval trematodes in bithyniid snails (Gastropoda: Bithyniidae) in the lake-rivers systems from the steppe zone (The West Siberian Plain, Russia)

2014 ◽  
Vol 51 (4) ◽  
pp. 293-300 ◽  
Author(s):  
E. Serbina

AbstractA survey of cercariae and metacercariae (Trematoda, Digenea) from bithyniid snails (Gastropoda: Bithyniidae) in lake-river systems in Northern Kulunda (of the steppe zone of the West Siberia Plain) is presented. The role of Bithynia tentaculata (Linne, 1758) and Bithynia troscheli (Paasch, 1842) as the first intermediate hosts and as the second intermediate hosts of trematodes in the study area was accomplished for the first time. Twelve species of cercariae (8 families) and 12 species of metacercariae (6 families) were found in bithyniid snails. Altogether, bithyniid snails were infected with 23 trematode species including 16 genera in 11 families. New Cercariae Holostephanus sp. and five original species of trematode metacercariae, were discovered in bithyniid snails of the steppe zone of the West Siberia Plain. The dominant cercariae were those of the families Prosthogonimidae and Lecithodendriidae. The most prevalent metacercariae were Echinoparyphium aconiatum Dietz, 1909 and E. recurvatum Linstow, 1873 (both family Echinostomatidae) and Cyathocotyle bithyniae Sudarikov, 1974 (Cyathocotylidae). B. troscheli infected by trematode parthenitae of Holostephanus sp. was detected in the Russia for the first time.

2021 ◽  
Vol 9 ◽  
Author(s):  
Nina Filippova ◽  
Dmitry Ageev ◽  
Sergey Bolshakov ◽  
Evgeny Davydov ◽  
Aleksandra Filippova ◽  
...  

The paper presents the initiative on literature-based occurrence data mobilisation of fungi and fungi-related organisms (literature-based occurrences, Darwin Core MaterialCitation) to develop the Fungal literature-based occurrence database for the southern West Siberia (FuSWS). The initiative on mobilisation of literature-based occurrence data started in the northern part of West Siberia in 2016. The present project extends the initiative to the southern regions and includes ten administrative territories (Tyumen Region, Sverdlovsk Region, Chelyabinsk Region, Omsk Region, Kurgan Region, Tomsk Region, Novosibirsk Region, Kemerovo Region, Altai Territory and Republic of Altai). The area occupies the central to southern part of the West Siberian Plain and extends for about 1.5 K km from the west to the east from the eastern slopes of the Ural Mountains to Yenisey River and from north to south—about 1.3 K km. The total area equals about 1.4 million km2. The initiative is actively growing in spatial, collaboration and data accumulation terms. The working group of about 30 mycologists from eight organisations dedicated to the data mobilisation was created as part of the Siberian Mycological Society (informal organisation since 2019). They have compiled the almost complete bibliographic list of mycology-related papers for the southern West Siberia, including over 900 publications for the last two centuries (the earliest dated 1800). All literature sources were digitised and an online library was created to integrate bibliography metadata and digitised papers using Zotero bibliography manager. The analysis of published sources showed that about two-thirds of works contain occurrences of fungi for the scope of mobilisation. At the time of the paper submission, the database had been populated with a total of about 8 K records from 93 sources. The dataset is uploaded to GBIF, where it is available for online search of species occurrences and/or download. The project's page with the introduction, templates, bibliography list, video-presentations and written instructions is available (in Russian) at the web site of the Siberian Mycological Society. The initiative will be continued in the following years to extract the records from all published sources. The paper presents the first project with the aim of literature-based occurrence data mobilisation of fungi and fungi-related organisms in the southern West Siberia. The full bibliography and a digital library of all regional mycological publications created for the first time includes about 900 published works. By the time of paper submission, nearly 8 K occurrence records were extracted from about 90 literature sources and integrated into the FuSWS database published in GBIF.


2021 ◽  
Vol 38 ◽  
pp. 00126
Author(s):  
Alexander I. Syso ◽  
Andrey Y. Korolyuk ◽  
Boris A. Smolentsev

The effect of weather conditions and such soil properties as pH, salt content, as well as different forms of macroand trace elements, on phytocoenoses biodiversity and chemical element contents in the aboveground phytomass was investigated in the forest-steppe zone of the West Siberian plain. Soil chemical element composition and salinity content were found to affect the phytomass content of N, P, K, Na, Ca, Mg, Fe, Mn, Zn, Cu, Sr, Li.


2020 ◽  
Vol 54 (2) ◽  
pp. 387-396
Author(s):  
I. V. Stavishenko

The paper provides data on records of 29 species of aphyllophoroid fungi new for the the Khanty-Mansi Autonomous Area — Yugra. Among them 10 species (Amaurodon cyaneus, Amyloxenasma allantosporum, Asterostroma laxum, Byssoporia terrestris, Paullicorticium pearsonii, Pseudomerulius montanus, Sistotrema sernanderi, Skeletocutis alutacea, S. ochroalba, Tubulicrinis orientalis) are published for the first time for Siberia, and 3 species (Scytinostroma praestans, Tomentellopsis zygodesmoides, Tubulicrinis strangulatus) are new for the West Siberia. Data on their locations, habitats and substrates in region are indicated. The specimens are kept in the Museum of the Institute of Plant and Animal Ecology of the Ural Branch of the RAS (SVER).


Parasitology ◽  
1929 ◽  
Vol 21 (1-2) ◽  
pp. 189-219 ◽  
Author(s):  
W. F. Harper

A large number of fresh-water Invertebrates has been examined and the parasites obtained from them include examples of the commoner groups to be met with in any area surveyed. Six larval Trematodes have been described in detail, and by means of direct animal experiment two of them have been definitely related to known adults. Of these two one is the larva of Notocotylus seineti Fuhr., and is doubtfully Cercaria monostomi v. Linst., while the other is the larva of Echinoparyphium recurvatum v. Linst., and is described here in detail for the first time. The four xiphidiocercariae described are new. Data relating to the activity, duration of free life, and process of encystment of cercariae within the bodies of secondary intermediate hosts is also given.Effect of the parasite on the host. The disruption of the tissues brought about by the presence of sporocysts or rediae in the liver of a mollusc injures the host, and in many cases brings about its death. The gonads also are often attacked and completely destroyed. This latter feature of parasitic castration has been observed by Giard (1888) among certain species of Limnaea, Planorbis and Paludina attacked by sporocysts. Brown (1926) states that the gonads are rarely infected. As regards the encysted stages of cercariae these appear to do very little harm to their hosts even when present in large numbers. These observations are in agreement with those of Lebour (1912) for the sporocyst, rediae, and encysted stages of marine Trematodes.Double infection. I have found no instance of a double infection among the species described. In the literature, several records show the parasitism of two or more species of cercariae, within one and the same host. The occurrence of two species is most commonly met with, and as a rule one is in predominance. Sewell (1922) states that double infection is not common in India. Faust (1917), on the other hand, has found as many as four trematode species within the same host individual (Planorbis trivolis). Hesse (1923) states that “every large Limnaea peregra examined was heavily infected with sporocysts of either of the two species, but it was rare to find both together.” Brown (1926) in the neighbourhood of Birmingham has found three examples of associated xiphidiocercariae and furcocercariae, one example of xiphidiocercariae and echinostome cercariae, and two examples of echinostome cercaria, all from Limnaea stagnalis L.


2014 ◽  
Vol 3 (1) ◽  
pp. 67-92
Author(s):  
Chen Bram ◽  
Meir Hatina

This article examines aspects of cultural exchange between the Middle East and the West in which Sufism, Christianity, the traditions of the Circassians and New Age concepts played a central role. It focuses on the teaching of Murat Yagan, of Abkhaz-Circassian origin who grew up in Turkey and immigrated to Canada in the 1960s, where he developed his philosophy, Ahmsta Kebzeh (“the knowledge of the art of living”). The Kebzeh way of life emphasizes modesty, mutual responsibility and compassion. Yagan linked these values to the ancient ethos of the Caucasus Mountains which he sought to revive as the basis of a universal vision. The nature of Kebzeh was influenced by the cosmopolitan environment in which Yagan was educated in Turkey; by his enrollment with Sufi circles in North America; and by the multicultural Canadian atmosphere. These diverse influences enabled him to devise an ecumenical model of dialogue between cultures. The article provides a first-time survey and analysis of Kebzeh ideological and communal features. It sheds new light on the role of ethnicity and cultural heritage in immigrant societies in the context of the evolution of spirituality in Canada, a relatively unexplored milieu in comparison to the United States and Europe.


2008 ◽  
Vol 42 ◽  
pp. 173-177
Author(s):  
E. A. Davydov ◽  
A. E. Sonnikova

Cetrelia alaskana has been found for the first time in the West Sayan Mountainsin the West Siberia. The distribution of the species is discussed.


2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Vyacheslav H. Mordkovich ◽  
Ilya I. Lyubechanskii

The review describes the main stages of the formation and development of soil zoology as a science at the intersection of zoology, ecology and soil science, approximately over a century, i.e. from the beginning of the 1920s until now. The analysis of soil-zoological work carried out in the forest-steppe zone, the subject of which was the fauna and population of soil protozoa, worms, molluscs, microarthropods and larger arthropods, collectively referred to as mesofauna. The forest-steppe was chosen as the topic of the review because it is well-studied and because most of the work on this biome was published in Russian, and little is known abroad (which is not surprising, since more than 80% of the forest-steppe territory is located in Russia). The authors reviewed about 170 the most significant works inventorying soil fauna, analyzing its ecological structure and the functional role of its various components, as well as the studies of the anthropogenic impact on soil animal populations. The works are presented on a territorial basis: the west of the European part of the USSR (Russia), the Volga region and West Siberia. The high species richness and originality of the soil fauna in the forest-steppe, its high resistance to natural and anthropogenic influences were shown. At the end, the review indicates some promising directions for soil fauna research in the Russian forest-steppe.


2021 ◽  
Vol 40 ◽  
pp. 68-74
Author(s):  
Svyatoslav S. Knyazev ◽  
Pavel Yu. Gorbunov ◽  
Sergey F. Melyakh ◽  
Svetlana V. Nedoshivina ◽  
Nikolai D. Grebennikov ◽  
...  

First record of the nemoral Eastern Palaearctic species Catocala helena Eversmann, 1856 is reported from Samara Region as new to Europe. New localities in the South Urals and West Siberia are reported for the first time. The present records expand the species distribution for more than 2500 km to the west. The general species’ distribution and bionomics is provided. Species’ habitats in the South Urals are illustrated.


2016 ◽  
pp. 89-107 ◽  
Author(s):  
N. N. Lashchinsky ◽  
O. Yu. Pisarenko

West Siberian subtaiga is a climatically and partly edaphically determined latitudinal subzone with deciduous forests dominated by birch and aspen trees as climax vegetation (Shumilova, 1962). Dark coni­ferous forests have here their southern limit of distribution and they are presented by the relatively small “islands” embedded into the “matrix” of deciduous forests mixed with meadows and arable lands. Main limited factor for the coniferous trees distribution is low humidity during vegetation period. Therefore the dark coniferous forests in subtaiga occupy the habitats with high and constant moisture. They are mainly the big rivers terraces or small river valleys. The total area of this habitat type is quite small. There are no special articles or monographs devoted to this vegetation. At the same time these dark coniferous forests are rich in species and they are a shelter of many rare and protected plants. The main goal of this article is to describe the composition, structure, distribution and syntaxonomical position of West Siberian dark coniferous forests on their southern limit. The article is based on 103 relevés collected through the West Siberia from Kemerovskaya region at the east to Omskaya region at the west from 1998 till 2014. All relevés were stored in a data base and developed by syntaxonomical analysis with IBIS 6.2 (Zverev, 2007), ordination and cluster analysis with PAST 2.14 (Hammer et al., 2001) and using the Ramensky ecological scales (Korolyuk, 2006).


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