scholarly journals Number and Distribution of the Narrow-Headed Vole Lasiopodomys gregalis (Pallas, 1779) (Cricetidae, Rodentia) in Western Siberia

2020 ◽  
pp. 209-227
Author(s):  
A. A. Kislyi ◽  
Yu. S. Ravkin ◽  
I. N. Bogomolova ◽  
S. M. Tsybulin ◽  
V. P. Starikov
Keyword(s):  
Western Siberia ◽  
Middle Taiga ◽  
Forest Steppe ◽  
West Siberian Plain ◽  
Similarity Coefficients ◽  
The South ◽  
The North ◽  
Structural Graph ◽  
The Matrix ◽  
River Valleys

According to the data collected in the second half of summer for the period from 1954 to 2016 in the flat and mountainous parts of Western Siberia, the distribution and number of the narrow-headed vole in the zonal and provincial aspects were analyzed. Based on the cluster analysis of the matrix of similarity coefficients of abundance indicators obtained by averaging the initial data by years and groups of geobotanical maps units, the classification of habitats according to the favorable environmental conditions degree for the vole is made. The averaged samples are divided into five types of favorability: from optimal, where the abundance of the species is highest in the whole studied area, to extreme, where it is not encountered. In the South of the West Siberian plain narrow-headed vole prefers steppes, and in the subarctic tundras – communities of river valleys. In the Altai and Kuznetsk-Salair mountain regions it is most common in the subalpine light forests, tundras and tundra-steppe of the North-Western and SouthEastern Altai. On average, this vole prefers open habitats in Western Siberia. According to the classification and the structural graph, the dependence of the vole abundance on a number of factors and their inseparable combinations (enviromental and anthropogenic regimes) was revealed. The greatest connection with its distribution in the habitats of Western Siberia is traced for heat and water availability. On the plain, the number of this vole increases from the middle taiga, where it is found only once, to the subzone of the subarctic tundras in the North and to the forest-steppe and steppe zones in the South. In the mountains its more in the South-Eastern Altai, where a relatively high proportion of the most favorable for narrow-headed vole habitats.

The unfavorable epizootic situation on nematode infestation of populations of the sable Martes zibellina and the pine marten M. martes in Western Siberia

2016 ◽  
Vol 3 (3) ◽  
pp. 325-331
Author(s):  
Жигилева ◽  
O. Zhigileva ◽  
Усламина ◽  
I. Uslamina
Keyword(s):  
Western Siberia ◽  
Nematode Species ◽  
Parasitic Nematodes ◽  
Forest Steppe ◽  
Pine Marten ◽  
The South ◽  
Northern Forest ◽  
North East ◽  
The North ◽  
Pine Martens

Objective of research: to study the nematode infestation of the sable and pine marten in Western Siberia. Materials and methods: Altogether 169 individuals of the sable and 18 — of the pine marten were investigated using the method of partial dissection of the gastrointestinal tract and lungs. Animals were caught according to the hunting license in 2009-2011 and 2014-2015, in 8 areas of Western Siberia from the south taiga to the northern forest-steppe. Results and discussion: We have found four species of parasitic nematodes, two of which (Crenosoma petrovi, Filaroides martis) were localized in lungs and two species (Capillaria putorii, Strongyloides martis) — in the intestine of the sable and the pine marten. Prevalence of lung nematodes was 80%, intestine nematodes — 40%. Intensity of infestation ranged from 26 to 358 nematodes per animal. F. martis is the most pathogenic and most common helminth in martens in Western Siberia. 53,3% of pine martens and 26,5% of sables were infected with this nematode species. Nematode S. martis is the most abundant in the intestine. In pine martens the extensity of invasion was 42,8%, the abundance index — 8.29 helminths per animal; in sables — 9,1% and 1.18, respectively. Pine martens were infected by F. martes and S. martis more than sables (p — 0,05). Prevalence increases in the direction from the North East (taiga) to the South West (sub-taiga), which determines the intensity of the helminthiases focus in biocenoses of Western Siberia. Infection of pine martens in the forest-steppe was not detected. In 2014–2015 compared with the previous study period (2009–2011) the extensity of invasion with intestinal nematodes increased by 1,5–2 times, and with highly pathogenic lung parasites — by 3 times. The increase in the helminth infestation may be explained by the growth of animal population density.

A Reinterpretation of the Microlithic Industries of Wales

1963 ◽  
Vol 29 ◽  
pp. 99-132 ◽  
Author(s):  
G. J. Wainwright
Keyword(s):  
Short Distance ◽  
The South ◽  
The West ◽  
The North ◽  
South Wales ◽  
North Wales ◽  
River Valleys

The distribution of Mesolithic sites in Wales is controlled to a great extent by the terrain, for physiographically, Wales is a highland block defined on three sides by the sea and for the greater part of the fourth side by a sharp break of slope. Geologically the Principality is composed almost entirely of Palaeozoic rocks, of which the 600-foot contour encloses more than three quarters of the total area. There are extensive regions above 1,500 feet and 2,000 feet and in the north the peaks of Snowdonia and Cader Idris rise to 3,560 feet and 2,929 feet respectively. Indeed North Wales consists of an inhospitable highland massif, skirted by a lowland plateau and cut deeply by river valleys, providing only limited areas for settlement. The hills and mountains of Snowdonia with their extension at lower altitudes into the Lleyn Peninsula, and the ranges of Moelwyn, Manod Mawr, Arenig Fach and Cader Idris, are discouraging obstacles to penetration, save for a short distance along the river valleys. To the east of these peaks are extensive tracts of upland plateau dissected by rivers, bounded on the west by the vale of the river Conway and cleft by the Vale of Clwyd. To the east of this valley lies the Clwydian Range and further again to the east these uplands descend with milder contours to the Cheshire and Shropshire plains.To the south the district merges into the uplands of Central Wales, which are continuous until they are replaced by the lowland belt of South Wales.

SPATIOTEMPORAL DYNAMICS OF AQUATIC AND ASSOCIATED GEOSYSTEMS IN THE SOUTH OF WESTERN SIBERIA UNDER CLIMATE CHANGE

2020 ◽  
Author(s):  
Dmitriy Chernykh ◽  
Dmitriy Zolotov ◽  
Roman Biryukov ◽  
Dmitriy Pershin
Keyword(s):  
Climate Change ◽  
Western Siberia ◽  
Soil Cover ◽  
Spatiotemporal Dynamics ◽  
Significant Part ◽  
Forest Steppe ◽  
Lake Levels ◽  
The South ◽  
Plant Associations

An unstable lake levels are characteristic for the Ob Plateau territory. Moreover, there are reciprocal level fluctuations. In this regard, both in the steppe and forest-steppe zones of the Plateau, a significant part of geosystems of underlying locations are periodically affected by the hydromorphic factor. It is manifested in the structure of soil cover, micro- and nanorelief, and composition of plant associations.

scholarly journals The genus Teilingia Bourrelly in waterbodies of West Siberia (Russia)

2021 ◽  
Vol 38 ◽  
pp. 00085
Author(s):  
Yury V. Naumenko
Keyword(s):  
Species Diversity ◽  
Western Siberia ◽  
West Siberia ◽  
Northern Taiga ◽  
Water Bodies ◽  
Middle Taiga ◽  
Forest Steppe ◽  
Taiga Forest ◽  
Different Types ◽  
Zones And Subzones

The data on the species diversity of representatives of the genus Teilingia Bourrelly are summarized. from the water bodies of Western Siberia, their distribution by zones and subzones. To date, 4 species and intraspecific taxa from the order Desmidiales are known for the region. Representatives of this family are found mosaically throughout the entire territory of Western Siberia. The largest number of taxa (3) was found in the middle taiga, in the tundra – two species. No species were found in the Irtysh floodplain, forest tundra, northern taiga, forest-steppe and steppe zones. In watercourses, including the Ob and Irtysh, as well as in lakes of different types, 3 taxa were identified, respectively. One species was found in swamps and in temporary reservoirs.

VEGETATION AND PLANT MATTER OF RAISED BOGS IN FOREST-STEPPE ZONE IN THE SOUTH OF WESTERN SIBERIA

2017 ◽  
pp. 73-77
Author(s):  
N.P. Mironycheva-Tokareva ◽  
◽  
N.P. Kosykh ◽  
E.K. Vishnyakova ◽  
N.G. Koronatova ◽  
...  
Keyword(s):  
Western Siberia ◽  
Steppe Zone ◽  
Forest Steppe ◽  
The South ◽  
Raised Bogs ◽  
Plant Matter

The Shaugh Moor Project: First Report

1979 ◽  
Vol 45 ◽  
pp. 1-33 ◽  
Author(s):  
G. J. Wainwright ◽  
A. Fleming ◽  
K. Smith
Keyword(s):  
Coastal Plain ◽  
Deciduous Forest ◽  
The South ◽  
Molten Material ◽  
The West ◽  
Central Mass ◽  
Climatic Trends ◽  
North East ◽  
The North ◽  
River Valleys

Viewed from the south Devon littoral with its series of good harbours the dark bulk of Dartmoor is clearly visible across the flat coastal plain. It is the largest of the five granite masses that provide a spine to the south-west English peninsula (Dartmoor, Bodmin Moor, Hensbarrow, Carnmenellis and Penwith) that were formed by the consolidation of molten material. The 500 square kilometres of the Moor form an undulating upland up to 600 m OD on the north-east side, where the greatest elevations occur. In the southern parts of the Moor the rolling tableland is 300 m to 420 m high—modern cultivation tends to cease at the 300 m contour, that is broken by numerous upland valleys and the eroded remains of tors. Today this expanse of moorland is bleak and treeless except in river valleys at the rim of the granite escarpment, although patches of contorted oak woodland survive at Piles' Wood on the River Erme, Wistman's Wood on the West Dart and Black Tor Beare on the West Okement. Pollen analyses have shown, however, that up to a height of about 360 m Dartmoor was probably covered by a deciduous forest dominated by oak that was gradually eroded by climatic trends and human activity (e.g. Simmons, 1969). It is from this central mass that the rivers of south Devon diverge. The wide upland valleys of the Tavy, Plym, Yealm, Erme, Avon and Dart plunge through characteristic deep wooded gorges near the southern granite escarpment into the South Hams and around this border modern settlement—numerous villages and a few towns are situated.

scholarly journals Notes on some animal parasites in British Guiana

1916 ◽  
Vol 7 (2) ◽  
pp. 179-190 ◽  
Author(s):  
G. E. Bodkin ◽  
L. D. Cleare
Keyword(s):  
Sea Level ◽  
Sand Dunes ◽  
Coastal Region ◽  
The South ◽  
British Guiana ◽  
North East ◽  
The North ◽  
South West ◽  
Western Side ◽  
River Valleys

British Guiana lies between the latitudes 0·41′ N. (source of the Essequebo River) and 8° 33′ 22″ N. (Punta Playa), has a depth from north to south of about 500 miles, a seaboard of about 270 miles trending in a south-easterly direction, and occupies in the north-east of South America an area approximately equal in extent to Great Britain. It is bounded on the north by the Atlantic Ocean, on the east by Surinam or Dutch Guiana, on the south and south-west by Brazil, and on the west by Venezuela.The Colony may be divided broadly into three belts. The northern one consists of a low-lying flat and swampy belt of marine alluvium—the coastal region. This rises gradually from the seaboard and extends inland for a distance varying from 5 to 49 miles. It is succeeded by a broader and slightly elevated tract of country of sandy and clayey soils. This belt is generally undulating, and is traversed in places by sand-dunes rising from 50 to 180 ft. above sea-level. The more elevated portion of the Colony lies to the southward of the above-mentioned regions. It rises gradually to the south-west, between the river valleys, which are in many parts swampy, and contains three principal mountain ranges, several irregularly distributed smaller ranges, and in the southern and eastern parts numerous isolated hills and mountains. The eastern portion is almost entirely forest-clad, but on the south-western side there is an extensive area of flat grass-clad savannah land elevated about 300 feet above sea-level.

scholarly journals Chronology of a Medieval complex from the Papskoye settlement (forest-steppe of Western Siberia)

2020 ◽  
pp. 43-52
Author(s):  
N.P. Matveeva ◽  
E.A. Tret'iakov ◽  
A.S. Zelenkov
Keyword(s):  
Material Culture ◽  
Middle Ages ◽  
Western Siberia ◽  
Archaeological Sites ◽  
Forest Steppe ◽  
Trade Routes ◽  
The North ◽  
Wide Range ◽  
High Middle Ages ◽  
The Right

A large number of imported items found in the occupation layers of archaeological sites in the Trans-Urals and Western Siberia suggest that, in the Middle Ages, these regions were on the periphery of trade routes and were involved in global historical events. In this connection, the dating of material culture provides details about trade and economic, as well as social and political, aspects of the life of communities of the past. One of the new archaeological sites allowing the dynamics of material culture to be traced is a multi-layered Papskoye settlement. This site constitutes a fortification having two areas and powerful defensive lines, located on top of the right-bank terrace of the Iset River. In this study, structures attributed to different chronological periods were analysed and artefacts were collected (7th century BC — 14th century AD). Nevertheless, collections of items dating back to the High Middle Ages (late 9th — early 14th centuries) are the most representative as they most objectively reflect the historical and cultural processes that took place in this region. Most of the finds of arrowheads, elements of cloth-ing and horse harnesses, as well as household items, in the Papskoye settlement belong to this time. In this study, we used a comparative-typological method followed by the identification of the types of things. In order to establish the most accurate chronological framework, as well as to determine the primary centres for the production of certain items, we applied the method of analogy using a wide range of material culture from the neighbouring territories, which include Altai, Mongolia, Volga region, Kama area, the Caucasus, the north of Western Siberia, etc. In this study, we identified two chronological phases within the High Middle Ages using the materials of the Papskoye fortified settlement: 1) late 9th — 12th centuries; 2) late 12th — early 14th centuries. They correspond to the period when the carriers of the Yudino and Chiyalik cultures inhabited this site. In addition, a large number of direct analogies with the neighbouring territories suggests that the territory of the forest-steppe Trans-Urals was located on the periphery of trade routes through which imports came from Southern Siberia, Volga Bulgaria and the Upper Kama area.

scholarly journals Macrophyte diversity in rivers and streams of the Vologda Region and several other regions of Russia

2021 ◽  
Vol 9 ◽  
Author(s):  
Dmitriy Philippov ◽  
Aleksandra Komarova
Keyword(s):  
Western Siberia ◽  
Northern Taiga ◽  
European Russia ◽  
Middle Taiga ◽  
Forest Steppe ◽  
The Caspian Sea ◽  
Global Biodiversity Information Facility ◽  
East European ◽  
Vologda Region ◽  
Rivers And Streams

The data paper contains the authors’ materials on the diversity of macrophytes, macroscopic plants regardless of their taxonomic position, in rivers and streams of East European Russia and Western Siberia. These data, collected on 247 rivers and 32 streams in 13 administrative regions of the Russian Federation, were provided as an occurrence dataset presented in the form of GBIF-mediated data. The main portion of the data was obtained in water objects of the Vologda Region (5201 occurrences). In addition, occurrences from the Arkhangelsk Region (347 occurrences), Khanty-Mansi Autonomous Okrug (159), Yaroslavl Region (132), Novgorod Region (97), Kostroma Region (41), Republic of Karelia (31), Sverdlovsk Region (29), Komi Republic (28), Orenburg Region (26), Chelyabinsk Region (22), Voronezh Region (22) and Tyumen Region (18) were given. The studies were carried out mainly in the southern and middle taiga and, to a lesser extent, in the northern taiga and the forest-steppe. The analysed watercourses belong to five drainage basins: the Azov Sea, the Baltic Sea, the White Sea, the Caspian Sea and the Kara Sea. The dataset contains materials on the diversity of Plantae (6094 occurrences) and Chromista (59 occurrences). This paper, in a standardised form, summarises mostly unpublished materials on the biodiversity of lotic ecosystems. The paper summarises the data obtained in long-term studies of phytodiversity in a range of rivers and streams of East European Russia and, fragmentarily, Western Siberia. A total of 6153 occurrences were included in the dataset. According to the GBIF taxonomic backbone, the dataset comprises 292 taxa, including 280 lower-rank taxa (species, subspecies, varieties) and 12 taxa identified to the genus level. All the occurrences are published openly through the Global Biodiversity Information Facility (GBIF) for the first time. Most of the data were stored in field diaries and, thus, by adding the data in GBIF, we believe that other researchers could benefit from it.

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