Aspects Regarding Raptors Migration over the Black Sea

Abstract We investigated diurnal raptors movements in the Black Sea basin. Bird migration over the western Black Sea has not been studied properly, scarce data being available mainly by Drost’s paper (1930) thus referring only to the birds from Snakes Island, and few new data collected during more recent research expeditions. The study of migration over large water bodies is a very complex task, due to the difficulty of reaching these areas; observations in this paper were made from research vessels and offshore oil rigs. Our data together with previously published information provides a new insight into bird migration routes over the Black Sea. Species observed across the Black Sea basin followed routes that are part of Via Pontica Corridor and Trans-Caucasian Corridor. The aim of this paper is to have a clearer image of the migration phenomenon in this area, such data are important for management and conservation of migratory birds.

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Modern application and prospects of the stable isotopes method for studying avian influenza A virus transmission in migratory birds

South of Russia ecology development ◽

10.18470/1992-1098-2019-3-92-100 ◽

2019 ◽

Vol 14 (3) ◽

pp. 92-100

Author(s):

O. R. Druzyaka ◽

A. V. Druzyaka ◽

M. A. Gulyaeva ◽

F. Huettmann ◽

A. M. Shestopalov

Keyword(s):

Stable Isotopes ◽

Avian Influenza ◽

Influenza A Virus ◽

Influenza A ◽

Bird Migration ◽

Migratory Birds ◽

Influenza Viruses ◽

Migration Routes ◽

Viral Pathogen ◽

Avian Influenza A Virus

Aim. The circulation and transmission of pathogens is a global biological phenomenon that is closely associated with bird migration. This analysis was carried out with the aim of understanding and assessing the prospects of using the stable isotope method to study the circulation and transmission of the avian influenza A virus via migratory birds. Discussion. Insufficient data on the distances of migration of infected birds and their interpopulational relationships leaves open the question of the transmission of highly pathogenic influenza viruses (HSV) in the wild bird population. A deeper study of the role of migrations in the spread of HSV may possibly allow the more effective investigation of the transmission of the viral pathogen between individuals at migration stopover sites and the clarification of global migration routes. New methodological approaches are providing a more complete picture of the geography and phenology of migrations, as well as of the consequences of migratory behavior for species biology. The study of the quantitative component of migratory flows based on the analysis of the content of stable isotopes (SIMS) in bird tissues seems very promising. This method is being applied to the solution of various environmental issues, including the study of animal migrations. Conclusion. Based on data from the scientific literature, it is shown that SIMS is promising for the clarification of bird migration routes and the quantification of their intensity. The resolving power of the method is sufficient to determine the migration pathways of carriers of viral pathogens on the scale of zoogeographic subdomains and in even further detail. However, to date, there have been few such studies: in Russia they have not been conducted at all. The increased use of the SIMS methodology may possibly reveal new ways in which viral infections are spread via birds.

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The seventh pandemic of cholera in Europe revisited by microbial genomics

Nature Communications ◽

10.1038/s41467-020-19185-y ◽

2020 ◽

Vol 11 (1) ◽

Author(s):

Mihaela Oprea ◽

Elisabeth Njamkepo ◽

Daniela Cristea ◽

Anna Zhukova ◽

Clifford G. Clark ◽

...

Keyword(s):

Black Sea ◽

Eastern Africa ◽

The Black Sea ◽

Southern Europe ◽

Whole Genome Analysis ◽

Black Sea Region ◽

El Tor ◽

Insight Into ◽

Shed Light

Abstract In 1970, the seventh pandemic of cholera (7 P) reached both Africa and Europe. Between 1970 and 2011, several European countries reported cholera outbreaks of a few to more than 2,000 cases. We report here a whole-genome analysis of 1,324 7 P V. cholerae El Tor (7 PET) isolates, including 172 from autochthonous sporadic or outbreak cholera cases occurring between 1970 and 2011 in Europe, providing insight into the spatial and temporal spread of this pathogen across Europe. In this work, we show that the 7 PET lineage was introduced at least eight times into two main regions: Eastern and Southern Europe. Greater recurrence of the disease was observed in Eastern Europe, where it persisted until 2011. It was introduced into this region from Southern Asia, often circulating regionally in the countries bordering the Black Sea, and in the Middle East before reaching Eastern Africa on several occasions. In Southern Europe, the disease was mostly seen in individual countries during the 1970s and was imported from North and West Africa, except in 1994, when cholera was imported into Albania and Italy from the Black Sea region. These results shed light on the geographic course of cholera during the seventh pandemic and highlight the role of humans in its global dissemination.

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Deep-water profiling of 137Cs and 90Sr in the Black Sea: a further insight into dynamics of the post-Chernobyl radioactive contamination

Journal of Radioanalytical and Nuclear Chemistry ◽

10.1007/s10967-014-3848-9 ◽

2014 ◽

Vol 304 (2) ◽

pp. 779-783 ◽

Cited By ~ 9

Author(s):

Sergei B. Gulin ◽

Victor N. Egorov ◽

Maxim S. Duka ◽

Ilya G. Sidorov ◽

Vladislav Yu. Proskurnin ◽

...

Keyword(s):

Black Sea ◽

Radioactive Contamination ◽

Deep Water ◽

The Black Sea ◽

Insight Into

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Fundamental Basis for the Conservation of Biodiversity of the Black Sea-Kazak H Steppes

Hacquetia ◽

10.2478/hacq-2014-0014 ◽

2014 ◽

Vol 13 (1) ◽

pp. 215-228 ◽

Cited By ~ 5

Author(s):

Olga Demina ◽

Tatiana Bragina

Keyword(s):

Plant Communities ◽

Black Sea ◽

The Black Sea ◽

Soil Invertebrate ◽

Rostov Region ◽

Floristic Classification ◽

Quantitative Indicators ◽

Insight Into ◽

Conservation Of Biodiversity

Abstract The paper presents new approaches for assessing the conservation value of plant communities based on the use of quantitative criteria contained in databases and eco-floristic classification of steppe vegetation in the Don basin (Rostov region). The Black Sea and Kazakhstan steppes have significant potential for environmental protection. Analysis of biodiversity levels has been facilitated by descriptions of plant communities and quantitative indicators of major faunal groups of soil invertebrates (macrofauna) in the Tobol-Turgai basin (Kostanay region, Kazakhstan). As the structure of soil invertebrate communities is closely associated with vegetation, its assessment can provide insight into the degree of preservation or the depth of disturbance of ecosystems such as those found in the Black Sea and Kazakhstan steppes.

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Review, The NEC “Black Sea Link” Yearbook 2013-14: a multidimensional insight into the history of the Black Sea Region (Petru Negură)

PLURAL. History, Culture, Society ◽

10.37710/plural.v3i2_14 ◽

2015 ◽

Vol 3 (2) ◽

pp. 180-184

Keyword(s):

Black Sea ◽

The Black Sea ◽

Black Sea Region ◽

History Of ◽

Insight Into

Book Review, The NEC “Black Sea Link” Yearbook 2013-14: a multidimensional insight into the history of the Black Sea Region (Petru Negură)

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Temperature constraints shaped the migration routes of mackerel (Scomber scombrus) in the Black Sea

Acta Adriatica ◽

10.32582/aa.58.2.12 ◽

2017 ◽

Vol 58 (2) ◽

pp. 337-344 ◽

Cited By ~ 1

Author(s):

Daniel Pauly ◽

Çetin Keskin

Keyword(s):

Black Sea ◽

North Atlantic ◽

The Black Sea ◽

Seasonal Temperature ◽

Migration Routes ◽

Atlantic Mackerel ◽

Scomber Scombrus ◽

The North ◽

And Migration ◽

Induced Changes

Conventional narratives explain fish migrations in term of requirements (food, mates, habitats, etc.), with adequate temperatures being optional. Here, using the example of a (commercially extinct) stock of Black Sea mackerel (Scomber scombrus), we suggest that seasonal migrations are driven by seasonal temperature cycles. Therein, temperature acts as a constraint determining where the fish can be at any given time, and not a one of several factors which they would consider when choosing between alternative migration routes. Generalizing, we suggest that temperature should generally be an explicit part of hypotheses about the migratory behaviours of marine fishes. For illustration of what may occur when this is not the case, it is suggested that the non-consideration of temperature in a model of North Atlantic mackerel migration may have led, among the researchers concerned, to a sense of complacency with respect to the climate change-induced changes in the phenology of this fish in the North Atlantic, whose distribution and migration are misleadingly seen as “stochastic”.

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