scholarly journals Dissemination of Invasive Mosquito Species, Aedes (Stegomyia) aegypti (L., 1762) and Aedes (Stegomyia) albopictus (Skuse, 1895) in the South of Krasnodar Region, Russia

2018 ◽  
pp. 101-105 ◽  
Author(s):  
M. V. Fedorova ◽  
O. G. Shvets ◽  
Yu. V. Yunicheva ◽  
I. M. Medyanik ◽  
T. E. Ryabova ◽  
...  
Keyword(s):  
Climatic Factors ◽  
Mosquito Species ◽  
The Black Sea ◽  
Climatic Data ◽  
The South ◽  
The North ◽  
Black Sea Coast ◽  
Northern Border ◽  
Invasive Mosquito ◽  
Krasnodar Region

Objective of the study was to investigate the current borders of the invasive species Ae. aegypti and Ae. albopictus distribution in the south of the Krasnodar Region and climatic factors limiting their expansion. Material and methods. Mosquito larvae, pupa and imago were collected in 21 inhabited localities in August–September, 2017, using conventional entomological methods, and identified through standard morphological keys. Climatic data found on the website pogoda. ru were analyzed using SPSS program. Results and conclusions. Ae. albopictus is widely spread along the Black Sea coast, from Adler to Novorossiysk (Ozereyevka), as well as on the north slopes of Caucasus up to Maikop. Additional investigations are required to specify the northern border of species distribution and to evidence the existence of established populations here. Ae. aegypti were not found in the south of the Krasnodar Region. The obtained data suggest a possibility of much wider spreading of dengue, Chikungunya and Zika fevers in case of pathogen importation to the south of Krasnodar Region, than was assumed earlier.

scholarly journals Assessing the Sensitivity of Main Crop Yields to Climate Change Impacts in China

Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 172
Author(s):  
Yuan Xu ◽  
Jieming Chou ◽  
Fan Yang ◽  
Mingyang Sun ◽  
Weixing Zhao ◽  
...  
Keyword(s):  
Climate Change ◽  
Crop Yield ◽  
Food Production ◽  
Crop Yields ◽  
Climatic Factors ◽  
Climatic Data ◽  
The South ◽  
The North ◽  
Output Elasticity ◽  
The Impact

Quantitatively assessing the spatial divergence of the sensitivity of crop yield to climate change is of great significance for reducing the climate change risk to food production. We use socio-economic and climatic data from 1981 to 2015 to examine how climate variability led to variation in yield, as simulated by an economy–climate model (C-D-C). The sensitivity of crop yield to the impact of climate change refers to the change in yield caused by changing climatic factors under the condition of constant non-climatic factors. An ‘output elasticity of comprehensive climate factor (CCF)’ approach determines the sensitivity, using the yields per hectare for grain, rice, wheat and maize in China’s main grain-producing areas as a case study. The results show that the CCF has a negative trend at a rate of −0.84/(10a) in the North region, while a positive trend of 0.79/(10a) is observed for the South region. Climate change promotes the ensemble increase in yields, and the contribution of agricultural labor force and total mechanical power to yields are greater, indicating that the yield in major grain-producing areas mainly depends on labor resources and the level of mechanization. However, the sensitivities to climate change of different crop yields to climate change present obvious regional differences: the sensitivity to climate change of the yield per hectare for maize in the North region was stronger than that in the South region. Therefore, the increase in the yield per hectare for maize in the North region due to the positive impacts of climate change was greater than that in the South region. In contrast, the sensitivity to climate change of the yield per hectare for rice in the South region was stronger than that in the North region. Furthermore, the sensitivity to climate change of maize per hectare yield was stronger than that of rice and wheat in the North region, and that of rice was the highest of the three crop yields in the South region. Finally, the economy–climate sensitivity zones of different crops were determined by the output elasticity of the CCF to help adapt to climate change and prevent food production risks.

ECOLOGY AND DISTRIBUTION OF INVASIVE MOSQUITO SPECIES AEDES ALBOPICTUS (SKUSE, 1895) IN THE SOUTH OF EUROPEAN PART OF RUSSIA

2021 ◽  
Vol 14 (1) ◽  
pp. 27-37
Author(s):  
A. G. Bega ◽  
А. V. Moskaev ◽  
М. I. Gordeev
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
European Part ◽  
Epidemiological Surveillance ◽  
Russian Plain ◽  
The Black Sea ◽  
Invasive Mosquito Species ◽  
Northern Border ◽  
European Part Of Russia ◽  
Invasive Mosquito

The aim of the study was to show ecological preferences and to establish the actual range of the invasive mosquito species Aedes albopictus . The moving of Ae. albopictus from the Black Sea coast of the Caucasus into the interior of the European part of Russia for the period 2017-2019 is shown. The northern border of the distribution of this species in 2019 passed through the cities: Timashevsk, Kropotkin, and Armavir. The limiting environmental parameters for the preimaginal stages of Ae. albopictus development are: the content of oxygen dissolved in the water and the water acidity. We believe that the air humidity and the floristic composition of the territory are the main factors determining the movement of the Aedes albopictus mosquitoes deep into the Russian Plain. The data obtained can be used for epidemiological surveillance and planning of preventive measures.

Influence of Currents and Atmospheric Circulation on the Efficiency of European Anchovy Fishing during its Wintering off the Black Sea Coast of the Krasnodar Territory

2021 ◽  
Author(s):  
B. N. Panov ◽  
E. O. Spiridonova ◽  
◽  
Keyword(s):  
Black Sea ◽  
Atmospheric Transport ◽  
Mesoscale Eddy ◽  
The Black Sea ◽  
Short Term ◽  
European Anchovy ◽  
The North ◽  
Daily Data ◽  
Black Sea Coast ◽  
Sea Coast

Russian fishermen harvest European anchovy primarily off the Black Sea coast of the Krasnodar Territory during its wintering and wintering migrations. At wintering grounds, temperature conditions become a secondary factor in determining the behaviour of commercial concentration of European anchovy, with wind and currents being the primary factors. Therefore, the aim of this work is to determine the potential use of daily data on water circulation and local atmospheric transport in short-term (1–7 days) forecasting of European anchovy fishing in the Black Sea. The research used the European anchovy fishery monitoring materials for January – March 2019, as well as daily maps of the Black and Azov Seas level anomalies (from satellite altimetry data) and surface atmospheric pressure and temperature in Europe (analysis) for the mentioned period. The dynamics of the catch rate and its relation to altimetry and atmospheric transport indicators in the north-eastern part of the Black Sea were investigated using graphical and correlation methods. This analysis showed that the main factor contributing to increased catches is intensification of northwest currents in the coastal 60-km zone. The effect of atmospheric transport on fishing efficiency depends on the mesoscale eddy structure of the nearshore current field. In the presence of an intense northwest current in the fishing area, southwest atmospheric transports have a positive effect on fishing, while in the presence of an anticyclonic meander of currents, northeast atmospheric transports become effective. The presence of maximum significant relationships when the determinants of fishing performance are shifted by 1–7 days allows making short-term predictions of fishing efficiency.

Settlement of early Byzantine time at the Kyz-Aul necropolis

2018 ◽  
Author(s):  
Н.Ф. Федосеев ◽  
Л.Ю. Пономарев
Keyword(s):  
Black Sea ◽  
The Other ◽  
The Black Sea ◽  
Living Room ◽  
The South ◽  
Kerch Peninsula ◽  
Black Sea Coast ◽  
The Village ◽  
Sea Coast ◽  
Early Byzantine

Necropolis Kyz-Aul is located on the Black Sea coast, 1 km to the south-east of the village. Yakovenkovo. In 1930, 1979–1983, 1985, 1995, 1997, 2000, 2005–2006, 2015–2017, he was investigated by Yu. Martti, O. Chevelev, N. Sudarev and N. Fedoseev. Separate burials date back to the II–I BC, the burial of the I–III AD the most recent burials, apparently, were committed in the IV–V AD. In the VI – third quarter of the VII century AD on the territory of the already abandoned necropolis, a small settlement was located. Its cultural stratum is traced on all sites that have been followed in the last decade. As living quarters, the looted crypts of the 1st–3rd centuries AD were adapted, consisting of one or two funerary cells and built of massive blocks of limestone (№ 6, 7, 9, 10). With exception of the crypts of the poorly preserved pit of the semidugout (?) other residential and household buildings on the necropolis could not be fixed. One child burial also belongs to the same period. The most well-preserved living room in the crypt number 6. In one of its funerary cells housed five household pits and heating devices, including a fireplace, reminiscent of the design of the fireplace. In the other crypts, the interior details of the “underground” dwellings have not been preserved. In the “Khazar” time burial chamber crypts were adapted for the maintenance of small cattle. The time of the early Byzantine settlement on the necropolis dates numerous finds of amphorae. The upper date was determined thanks to the coin of 674 Constantine IV Pogonat. In addition, a ring with the image of an archangel was found, an analogy of which is known in the burial complexes of the 7th century. Unfortunately, the area and location of the necropolis of this settlement is not yet established. Cannot be reconstructed and its layout. It is difficult to reconstruct the interior of the “underground” dwellings themselves, since the crypts were reused in the “Khazar” period. In addition, no other settlements of this time were found on the ancient necropolises of the Kerch Peninsula

Architecture of One-Apsidal Churches of North Black Sea Coast VI-XII c.

2018 ◽  
Vol 931 ◽  
pp. 790-796
Author(s):  
Viktoria V. Pishchulina
Keyword(s):  
Black Sea ◽  
The Black Sea ◽  
Byzantine Empire ◽  
Black Sea Region ◽  
The North ◽  
Black Sea Coast ◽  
The Crimea ◽  
The One ◽  
Sea Coast

A one-apsidal hall church is always a reflection of so-called “vulgar” Christianity, thus revealing the important peculiarities of the spatial culture of the region where it is erected. In this region we can mark two periods when such temples were built: VI-VII c. and X-XII c. The first period is associated with the missionary activity by Byzantine Empire, Antioch, Caucasian Albania which was conditioned by both geopolitical interests (Byzantian Empire, Antioch) and the shift of The Great Silk Way to the north (Caucasian Albania). The second, as the research has shown, is connected with the migration of the peoples of Abkhazia, the abzakhs to this territory in the XII-XIII c. and the development of contacts with the Crimea. In the North Black Sea Region the one-apsidal hall church appears as early as in the VI c. – in the territory of Abkhazia we know about ten such temples. The temples of this type in the area of Big Sochi are dated back to the VII-VIII c. In the first Abhzaian temples we can reveal the influence of denominational centers – Byzantian Empire, Antioch, Caucasian Albania. In the temples of the Black Sea coast of both periods – introduction of the samples from Abkhazia.

The Statistical Forecasting Models of a Hail for the Western Part of the North Caucasus and the Black Sea Coast Constructed on Output Production of Global System of Forecasts (GFS NCEP)

2018 ◽  
Vol 931 ◽  
pp. 1037-1041
Author(s):  
Arthur Kh. Kagermazov
Keyword(s):  
Large Scale ◽  
Convective Cloud ◽  
The Black Sea ◽  
Model Data ◽  
North Caucasus ◽  
Independent Variables ◽  
The North ◽  
Black Sea Coast ◽  
Cloud Development ◽  
Gfs Model

Statistical models of the hail forecast are proposed for the two regions of the North Caucasus, developed from the output of the global atmosphere model GFS NCEP. Statistical schemes are obtained as a result of discriminant analysis conducted using statistical software package SPSS. Independent variables in these schemes are the most informative predictors of strong convective cloud development, calculated on the basis of the global GFS model data related to local atmospheric instability and large-scale synoptic processes. Based on the results of the operational audit, the estimates of the success of the hail forecasts according to existing criteria are given, the high values of which assume a reduction in damage from hailstorms, when using them.

Further studies on trade winds during the glacial cycles

1975 ◽  
Vol 346 (1645) ◽  
pp. 245-260 ◽  
Keyword(s):  
Organic Carbon ◽  
Size Distribution ◽  
Cape Verde ◽  
Climatic Data ◽  
The South ◽  
Glacial Cycles ◽  
Cape Verde Islands ◽  
Trade Winds ◽  
The North ◽  
Quartz Grains

Core V19-301 (south of Cape Verde Islands) has been analysed in detail for (i) size distribution of quartz grains, (ii) mineralogy, (iii) colour and organic carbon (iv) G. menardii foraminifera, and (v) total foraminifera and carbonate. These results are compared with those previously obtained on core V23-100 (north of Cape Verde Islands). It is believed that the carbonate variations can be used to establish simultaneity between the cores, and thus the following climatic data emerge: ( a ) During glacial stages the trade winds were more vigorous than normal for the region north of the Cape Verdes; but the wintertime Harmattan was weaker than normal for the region south of the Cape Verdes. ( b ) The land to the north of Dakar remained desert, and was especially arid during glacials, whereas to the south of Dakar conditions oscillated between desert during interglacials, and savannah during glacials, ( c ) These wind and rainfall oscillations were more rapid and less excursive at around 0.7 Ma than they were in later glacial cycles.

scholarly journals FEATURES OF Sr DISTRIBUTION IN ROCKS AND SOILS OF GEOCHEMICAL LANDSCAPES OF THE BLACK SEA COAST OF RUSSIA

2021 ◽  
Vol 1 (6) ◽  
pp. 126-130
Author(s):  
I.Y. Matasova ◽  
Keyword(s):  
Black Sea ◽  
Humus Horizon ◽  
Chemical Elements ◽  
Agricultural Landscapes ◽  
The Black Sea ◽  
North Caucasus ◽  
The North ◽  
Black Sea Coast ◽  
The Impact ◽  
Sea Coast

The article considers the results of studying the features of Sr distribution in rocks of various ages and composition and soils of landscapes of the Black Sea coast of Russia (in the humus horizon and soil profile). The content of elements in the studied soils is compared with the regional background for the soils of the North Caucasus. A direct relationship between the content of the element in soils and underlying rocks, as well as the influence of technogenesis on the processes of accumulation and removal of the element in the soils of agricultural landscapes, has been revealed. The results of a comprehensive study of the south of Russia became the basis for studying the peculiarities of the distribution of Sr landscapes of the Black Sea coast of Russia. To establish the main parameters of the distribution of chemical elements in rocks and soils of various landscapes and the region as a whole, to identify geochemical features of geographical and technogenic differentiation, to assess the impact of various types of environmental management on changes in the geochemical spectrum of soils, to determine the influence of landscape-forming factors on the migration of chemical elements and the formation of geochemical barriers. The highest concentration of Sr was observed in carbonate-terrigenous rocks of the Paleogene and Cretaceous ages (marls and limestones). In the humus horizon of soils, the average metal concentrations vary in the range from 13.0∙10–3 to 95.0∙10–3 % with a regional clark of 22.0∙10–3 %.

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