scholarly journals Hunting behaviour in arvicoline rodents

2021 ◽  
Vol 908 (1) ◽  
pp. 012021
Author(s):  
A Novikovskaya ◽  
E Kizilova ◽  
J Levenets ◽  
S Panteleeva ◽  
N Lopatina ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Laboratory Experiments ◽  
East European ◽  
Hunting Behaviour ◽  
East European Vole

Abstract In laboratory experiments, purposeful predatory inter-relations with moving insects have been revealed and described in three species of herbivorous voles: the East European vole, the narrow-headed vole, and the Tuva silver vole. The appearance of the full hunting stereotype in these species does not require preliminary experience, which indicates its innate nature. The hunting behaviour of the Tuva silver vole differed from that of the East European vole and narrow-headed vole, which probably reflects the phylogenetic relationships between these species.

The first finding of East European vole (Microtus rossiaemeridionalis) in Buryatia

2017 ◽  
Vol 8 (3) ◽  
pp. 266-271 ◽  
Author(s):  
I. V. Moroldoev ◽  
I. N. Sheremetyeva ◽  
I. V. Kartavtseva
Keyword(s):  
East European ◽  
Microtus Rossiaemeridionalis ◽  
First Finding ◽  
East European Vole

scholarly journals Morphological and morphometric characterization of the new records of the East European vole (Microtus levis Miller, 1908) from northeast Iran

2015 ◽  
Vol 8 (3) ◽  
pp. 233-237 ◽  
Author(s):  
Fatemeh Ghorbani ◽  
Zeinolabedin Mohammadi ◽  
Jamshid Darvish ◽  
Haji Gholi Kami ◽  
Roohollah Siahsarvie
Keyword(s):  
New Records ◽  
East European ◽  
Morphometric Characterization ◽  
Northeast Iran ◽  
Microtus Levis ◽  
East European Vole

scholarly journals Ectoparasite Complex of the East European Vole Microtus rossiaemeridionalis (Arvicolinae, Rodentia) on the Northern Border of the Range in Western Siberia

2020 ◽  
Vol 14 (3) ◽  
pp. 23-33
Author(s):  
V. P. Starikov ◽  
S. V. Egorov ◽  
A. D. Mayorova ◽  
E. A. Vershinin ◽  
V. A. Petukhov ◽  
...  
Keyword(s):  
Western Siberia ◽  
Common Vole ◽  
Middle Taiga ◽  
Forest Zone ◽  
East European ◽  
Northern Border ◽  
Gamasid Mites ◽  
Quantitative Indicators ◽  
First Time ◽  
East European Vole

The purpose of the research is establishing the composition, infection rates, species and group ratio of ectoparasites of the East European vole on the northern border of the range in Western Siberia (Middle Ob Region). Materials and methods. In 2015–2018, in order to capture the provider of ectoparasites, the East European vole, we used methods of trap lines, trap trenches, and fence-traps; we recorded 173 animals from which we collected 881 specimens of gamasid mites, ixodic ticks, lice and fleas. To assess the quantitative indicators of ectoparasites, the indices generally accepted in parasitology were used. Results and discussion. In 2014, it was established for the first time that there is a sibling species of the common vole, the East European vole in the Middle Ob Region (middle taiga of the forest zone of Western Siberia). In the city of Surgut and its neighborhood, this animal is confined to the most transformed biotopes. The ectoparasite complex of the East European vole includes 26 species of parasitic arthropods. By the number of species (13) and individuals, gamasid mites predominate, and the proportion of ixodic ticks, lice and fleas put together is almost 3 times lower. In a climate of the Middle Ob Region, the list of ectoparasites will no doubt grow as the range of habitats expands and the contacts of the East European vole with other small mammals increase, and its role in maintaining pathogen circulation of natural focal infectious diseases will increase.

scholarly journals Phylogeny, phylogeography and hybridization of Caucasian barbels of the genus Barbus (Actinopterygii, Cyprinidae)

2018 ◽  
Author(s):  
Boris A. Levin ◽  
Alexander A. Gandlin ◽  
Evgeniy S. Simonov ◽  
Marina A. Levina ◽  
Anna E. Barmintseva ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Black Sea ◽  
Phylogenetic Relationships ◽  
Caspian Sea ◽  
The Black Sea ◽  
Intergeneric Hybridization ◽  
Lake Sevan ◽  
East European ◽  
Geographic Coverage ◽  
First Time

AbstractThe phylogenetic relationships and the phylogeography of seven species of Caucasian barbels of the genus Barbus s. str. were studied based on extended geographic coverage and the use of mtDNA and nDNA markers. Based on the 26 species studied, matrilineal phylogeny of the genus Barbus is composed of two clades: a) West European clade, and b) Central and East European clade. The latter comprises two subclades: b1) Balkanian subclade, and b2) Ponto-Caspian subclade, which includes 11 lineages mainly from Black and Caspian Sea drainages. Caucasian barbels are not monophyletic and are subdivided into two groups. The Black Sea group encompasses species from tributaries of the Black Sea, including the reinstalled B. rionicus, except for B. kubanicus. The Caspian group includes B. ciscaucasicus, B. cyri (with B. goktschaicus, which might be synonymized with B. cyri), B. lacerta from the Tigris-Euphrates basin and B. kubanicus from the Kuban basin. The genetic structure of Black Sea barbels was influenced by glaciation-deglaciation periods accompanied by freshwater phases, periods of migration and the colonization of Black Sea tributaries. Intra- and intergeneric hybridization among Caucasian barbines was revealed for the first time. In the present study, we report the discovery of B. escherichii in the Kuban basin, where only B. kubanicus was known to inhabit. Hybrids of these two species were detected based on both mtDNA and nDNA markers. Remarkably, the Kuban population of B. escherichii is distant to closely located conspecific populations, and we consider it as a relic. We reveal the intergeneric hybridization between evolutionary tetraploid (2n=100) B. goktschaicus and evolutionary hexaploid (2n=150) Capoeta sevangi in Lake Sevan.

Intraspecific epigenetic polymorphism of the East European vole (Microtus levis Miller, 1908) in South-eastern Europe and Turkey

Biologia ◽  
2014 ◽  
Vol 69 (1) ◽  
Author(s):  
Georgi Markov ◽  
Nuri Yiğit ◽  
Ercüment Çolak ◽  
Maria Kocheva ◽  
Milena Gospodinova
Keyword(s):  
Biological Diversity ◽  
Population Variation ◽  
Clethrionomys Glareolus ◽  
Central Anatolia ◽  
Cranial Morphology ◽  
Epigenetic Variability ◽  
East European ◽  
North East ◽  
Microtus Levis ◽  
East European Vole

AbstractThis study aims to represent the first report on population variation of 20 non-metric skull characters in East European vole (Microtus levis) from the Balkan (populations from Northern Dobruja; Southern Dobruja; East part of the Danube Plain; North-east Trace; Sofia field; South-east Trace) and Anatolian peninsulas (populations from North-west Anatolia region and Central Anatolia region), on the basis of which to determine its epigenetic variability and to analyse their mutual geographical epigenetic relations through comparison of the epigenetic divergence among them. Estimation of epigenetic variation of the studied populations of M. levis showed similar pattern of variation, but it is mostly higher than the other rodent species with a similar range of distribution, such as Microtus arvalis, Mus musculus, Apodemus sylvaticus, Apodemus flavicollis and Clethrionomys glareolus. Each one of the studied traits manifested some polymorphism. Moreover, all the calculated epigenetic distances (MMD) were statistically insignificant (P < 0.05) and epigenetic cranial uniqueness (MU) of any studied population was not found. These results reveal lack of expressed geographic relationship of population epigenetic variability in East European vole. The revealed populations epigenetic polymorphism of M. levis gives an opportunity for more complete assessment of variability and biological diversity of this species, but further research is necessary to elucidate its population epigenetics, especially as the data obtained in recent investigations of cranial morphology of the sibling species from the group the M. arvalis (sensu lato) added new locations to the distribution map of the East European vole in Eurasia.

Covering of cometary nucleus by refractory crust and its evolution into asteroid-like body

1999 ◽  
Vol 173 ◽  
pp. 365-370
Author(s):  
Kh.I. Ibadinov
Keyword(s):  
Laboratory Experiments ◽  
Cometary Nucleus ◽  
Sublimation Rate ◽  
Cometary Nuclei ◽  
Short Period Comet ◽  
Short Period ◽  
Brightness Decrease ◽  
Crust Thickness ◽  
Ice Sublimation ◽  
Period Comet

AbstractFrom the established dependence of the brightness decrease of a short-period comet dependence on the perihelion distance of its orbit it follows that part of the surface of these cometary nuclei gradually covers by a refractory crust. The results of cometary nucleus simulation show that at constant insolation energy the crust thickness is proportional to the square root of the insolation time and the ice sublimation rate is inversely proportional to the crust thickness. From laboratory experiments resulted the thermal regime, the gas productivity of the nucleus, covering of the nucleus by the crust, and the tempo of evolution of a short-period comet into the asteroid-like body studied.

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