scholarly journals Hydromacrophytes composition in water reservoirs of the North-Eastern part of the Kurgan Region

2018 ◽  
Vol 7 (2) ◽  
pp. 120-125
Author(s):  
Olga Egorovna Tokar
Keyword(s):  
West Siberian Plain ◽  
Ruppia Maritima ◽  
Water Reservoirs ◽  
The North ◽  
Northern Border ◽  
North Eastern ◽  
First Time ◽  
New Location ◽  
North Eastern Part ◽  
North Latitude

Hydromacrophyte flora of 22 water bodies in the Kurgan Region was studied in 2017. The aquatic study was conducted within the 6 administrative districts of the Kurgan Region: Chastoozersky (4), Petrovsky (2) Makushinski (7), Lebyazhyevsky (4), Vargashinsky (2), and Mokrousovsky (3). The area of the research was between 55 09 minutes of the North latitude and 5548 of the North latitude, from West to East - between 6553 of the East latitude and 69 19 minutes of the East latitude. During the research we selected and recorded samples of macroalgae and collected herbarium of higher hydromacrophytes. The paper contains data on species composition and frequency of hydromacrophytes occurrence; new location of Ruppia maritima L. that is considered to be rare in the Kurgan Region was found. Its the first time the specific structure of mаcroscopic algae has been given for the territory of research. It is noted that the species of Chara contraria A. Br., is a rare one, and here it is located on the Northern border of its distribution, therefore it needs protection. Most of the identified species of hydromacrophytes are common in the West Siberian plain (Northern Kazakhstan, Tyumen Region). The paper also contains information about the location of invasive species Elodea canadensis Michx. The obtained materials can serve as a basis for further hydrobotanical study of water reservoirs in the Kurgan Region.

scholarly journals Individual aspects of Takydromus wolteri and Takydromus amurensis biology

2017 ◽  
Vol 6 (4) ◽  
pp. 61-66
Author(s):  
Ekaterina Yurievna Portniagina ◽  
Irina Vladimirovna Maslova
Keyword(s):  
Far East ◽  
Reproductive Parameters ◽  
Lizard Species ◽  
Russian Territory ◽  
The North ◽  
New Information ◽  
North Eastern ◽  
East Russia ◽  
First Time ◽  
North Eastern Part

The paper presents information regarding specific aspects of reproduction and nutrition of two poorly studied lizard species of genus Takydromus ( Takydromus wolteri and Takydromus amurensis ) in the north-eastern part of their habitat (Primorskiy Krai, Far East, Russia). The material given in the publication was collected both in natural and laboratory conditions. Data related to quantity as well as size of eggs and juveniles (right after their birth) are presented. The joint clutch of several female of T. amurensis was found for the first time and contained 30 eggs. For the first time the incubation period has been reported for these species that inhabit Russian territory ( T. amurensis - 44-56 days, T. wolteri - 42-44). Date of escape from eggs has been revealed for T. wolteri to be earlier than given in literature and occur on second decade of August. Cline dependence of morphometric and reproductive parameters have been dealt. Both species have been shown to prefer the following invertebrates as meal in lab conditions - Aranei, Geophilomorpha, Lithobiomorpha, Tenebrionidae (larve), Muscidae, Ectobiidae и Gryllidae. New information regarding nutritional behavior is provided for T. wolteri and T. amurensis in terrarium conditions. Both species use various traits to kill and to eat the catch based on the group to which the invertebrate is related. It has been shown empirically that juveniles of T. amurensis can eat meal right in 2-3 hours after their escape from the eggs.

scholarly journals Record of Dicranosepsis javanica (de Meijere, 1904) (Diptera, Sepsidae) from Meghalaya (India), with morphological and genetic data

2017 ◽  
Vol 60 (2) ◽  
pp. 495-503
Author(s):  
Lavinia Iancu ◽  
Khlur Mukhim ◽  
Liviu Moscaliuc
Keyword(s):  
Genetic Data ◽  
Morphological Description ◽  
Male Specimen ◽  
The North ◽  
North Eastern ◽  
Identification Of Species ◽  
Jaintia Hills ◽  
First Time ◽  
The Village ◽  
North Eastern Part

Abstract The present article reports Dicranosepsis javanica (de Meijere 1904) (Diptera: Sepsidae) from Meghalaya and makes a note of its Oriental distribution range. The specimens were sampled in January 2014 by sweep net in the village of Schnongrim, Jaintia Hills, Meghalaya, situated in the north-eastern part of India. A short morphological description is provided for the male specimen, while the female taxonomic characters are presented for the first time. The taxonomic identification of species was confirmed by DNA Barcoding.

scholarly journals Different Paths of Neolithisation of the North-Eastern Part of Central Europe

2021 ◽  
Vol 7 (1) ◽  
pp. 1582-1601
Author(s):  
Marek Nowak
Keyword(s):  
Central Europe ◽  
Hunter Gatherers ◽  
Territorial Expansion ◽  
The North ◽  
North Eastern ◽  
Funnel Beaker Culture ◽  
First Time ◽  
Late Mesolithic ◽  
North Eastern Part ◽  
Selection Of

Abstract Origins of the Neolithic in the north-eastern part of Central Europe were associated with migrations of groups of the Linear Pottery culture after the mid-sixth millennium BC, as in other parts of Central Europe. During these migrations, a careful selection of settlement regions took place, in terms of the ecological conditions most favourable for agriculture. The enclave-like pattern of the Neolithic settlement persisted into the fifth millennium BC when these enclaves were inhabited by post-Linear groups. The remaining areas, inhabited by hunter-gatherers, were not subject to direct Neolithisation. However, there are some indications of contact between farmers and hunter-gatherers. This situation changed from c. 4000 BC onwards because of the formation and spectacular territorial expansion of the Funnel Beaker culture (TRB). This archaeological unit for the first time covered in a relatively compact way the territory under consideration. The human substratum of this process consisted of both hunter-gatherers and farmers. Consequently, one can discourse about Neolithisation as such only in the former case. Not all Late Mesolithic hunter-gatherers accepted TRB patterns. Those communities still successfully carried on traditional lifestyle, gradually supplementing it with pottery (para-Neolithic). Their Neolithisation ended perhaps only in the first half of the second millennium BC.

scholarly journals A memoir on the geography of the North-eastern part of Asia, and on the question whether Asia and America are contiguous, or are separated by the sea

1833 ◽  
Vol 2 ◽  
pp. 81-82
Keyword(s):  
Mediterranean Sea ◽  
Floating Body ◽  
North East ◽  
The North ◽  
Peter The Great ◽  
North Eastern ◽  
Total Separation ◽  
Being There ◽  
North Eastern Part ◽  
North Latitude

The opinion that the continents of Asia and America are separated by the sea, seems first to have been inferred in 1736 by Professor Muller, and to have been founded upon some papers found at that time in Siberia, relating to the celebrated voyage of Deschneer, who in 1648 first discovered the sea east of Kamtschatka. The question, however, seems to have been undecided at the period of Behring’s voyage, as we learn from his instructions given by Peter the Great; and the Asiatic side only of Behring’s Strait was discovered by that navigator: for the coast of Asia being there found to take a western direction, it had the effect of giving an impression of the total separation of Asia and America. After noticing several other attempts to determine the north-eastern limits of Asia previous to the arrival of Captain Cook in the sea of Kamtschatka, Captain Burney proceeds to the observations of that navigator. The first extraordinary circumstance was a sudden disappearance of the tides in Behring’s Strait. Thence Captain Cook coasted the land of America to the north and north-east till stopped, in 70° 40' north latitude, by a floating body of ice. He then stood westward from the coast of Asia, keeping in as high a latitude as the ice would permit. The deepest soundings in this sea did not exceed 30 fathoms in latitude 68° 45', mid-way between the coasts of Asia and America. The soundings decreased to the northward, and did not increase in running from the coast of America westward, as is usual in running from land. These, and other peculiarities, gave so much the character of a mediterranean sea, that some on board, says the author, were of opinion that we were inclosed by land to the north, and that Asia and America were there united.

The influence of submesoscale eddies on hydrochemical parameters and structural and functional characteristics of phytoplankton in the north-eastern part of the Black Sea

2019 ◽  
pp. 24-40
Author(s):  
Sergey B. Kuklev ◽  
Vladimir A. Silkin ◽  
Valeriy K. Chasovnikov ◽  
Andrey G. Zatsepin ◽  
Larisa A. Pautova ◽  
...  
Keyword(s):  
Anticyclonic Eddy ◽  
The Black Sea ◽  
Hydrochemical Parameters ◽  
North East ◽  
The North ◽  
Seasonal Thermocline ◽  
North Eastern ◽  
Quantitative Indicators ◽  
The City ◽  
North Eastern Part

On June 7, 2018, a sub-mesoscale anticyclonic eddy induced by the wind (north-east) was registered on the shelf in the area of the city of Gelendzhik. With the help of field multidisciplinary expedition ship surveys, it was shown that this eddy exists in the layer above the seasonal thermocline. At the periphery of the eddy weak variability of hydrochemical parameters and quantitative indicators of phytoplankton were recorded. The result of the formation of such eddy structure was a shift in the structure of phytoplankton – the annual observed coccolithophores bloom was not registered.

Ketilidian structure and the rapakivi suite between Lindenow Fjord and Kap Farvel, South-East Greenland

2000 ◽  
pp. 50-59
Author(s):  
Brian Chadwick ◽  
Adam A. Garde ◽  
John Grocott ◽  
Ken J.W. McCaffrey ◽  
Mike A. Hamilton
Keyword(s):  
Coastal Region ◽  
Field Work ◽  
Natural Environment Research Council ◽  
East Greenland ◽  
The North ◽  
Tectonic Processes ◽  
Field Investigations ◽  
North Eastern ◽  
Bad Weather ◽  
North Eastern Part

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Chadwick, B., Garde, A. A., Grocott, J., McCaffrey, K. J., & Hamilton, M. A. (2000). Ketilidian structure and the rapakivi suite between Lindenow Fjord and Kap Farvel, South-East Greenland. Geology of Greenland Survey Bulletin, 186, 50-59. https://doi.org/10.34194/ggub.v186.5215 _______________ The southern tip of Greenland is underlain by the Palaeoproterozoic Ketilidian orogen (e.g. Chadwick & Garde 1996; Garde et al. 1998a). Field investigations in the summer of 1999 were focused on the structure of migmatites (metatexites) and garnetiferous granites (diatexites) of the Pelite Zone in the coastal region of South-East Greenland between Lindenow Fjord and Kap Farvel (Figs 1, 2). Here, we first address the tectonic evolution in the Pelite Zone in that region and its correlation with that in the Psammite Zone further north. Then, the structure and intrusive relationships of the rapakivi suite in the Pelite Zone are discussed, including particular reference to the interpretation of the controversial outcrop on Qernertoq (Figs 2, 8). Studies of the structure of the north-eastern part of the Julianehåb batholith around Qulleq were continued briefly from 1998 but are not addressed here (Fig. 1; Garde et al. 1999). The field study was keyed to an interpretation of the Ketilidian orogen as a whole, including controls of rates of thermal and tectonic processes in convergent settings. Earlier Survey field work (project SUPRASYD, 1992–1996) had as its principal target an evaluation of the economic potential of the orogen (Nielsen et al. 1993). Ensuing plate-tectonic studies were mainly funded in 1997–1998 by Danish research foundations and in 1999 by the Natural Environment Research Council, UK. The five-week programme in 1999 was seriously disrupted by bad weather, common in this part of Greenland, and our objectives were only just achieved. Telestation Prins Christian Sund was the base for our operations (Fig. 2), which were flown with a small helicopter (Hughes MD-500).

New insights on the north-eastern part of the Ketilidian orogen in South-East Greenland

1999 ◽  
pp. 23-33 ◽  
Author(s):  
Adam A. Garde ◽  
John Grocott ◽  
Ken J.W. McCaffrey
Keyword(s):  
Sea Ice ◽  
Coastal Areas ◽  
East Greenland ◽  
Original Series ◽  
The North ◽  
North Eastern ◽  
North Eastern Part ◽  
Geological Research

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Garde, A. A., Grocott, J., & McCaffrey, K. J. (1999). New insights on the north-eastern part of the Ketilidian orogen in South-East Greenland. Geology of Greenland Survey Bulletin, 183, 23-33. https://doi.org/10.34194/ggub.v183.5201 _______________ During a five week period in August–September 1998 the poorly known north-eastern part of the Palaeoproterozoic (c. 1800 Ma) Ketilidian orogen between Kangerluluk and Mogens Heinesen Fjord in South-East Greenland (Fig. 1) was investigated in continuation of recent geological research in other parts of the orogen. The north-eastern part of the orogen is remote from inhabited areas. It is mountainous and comprises a wide nunatak zone which can only be reached easily by helicopter. Furthermore, access to coastal areas by boat is difficult because many parts of the coast are prone to be ice-bound even during the summer months, due to wind- and current-driven movements of the sea ice.

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