23 results on '"Askeyev O"'
Search Results
2. Modern Siberian Dog Ancestry was Shaped by Several Thousand Years of Eurasian-Wide Trade and Human Dispersal
- Author
-
Feuerborn, T. R., Carmagnini, A., Losey, R. J., Nomokonova, T., Askeyev, A., Askeyev, I., Askeyev, O., Antipina, E. E., Appelt, M., Bachura, O. P., Beglane, F., Bradley, D. G., Daly, K. G., Gopalakrishnan, S., Gregersen, K. M., Guo, C., Gusev, A. V., Jones, C., Kosintsev, P. A., Kuzmin, Y. V., Mattiangeli, V., Perri, A. R., Plekhanov, A. V., Ramos-Madrigal, J., Schmidt, A. L., Shaymuratova, D., Smith, O., Yavorskaya, L. V., Zhang, G., Willerslev, E., Meldgaard, M., Gilbert, M. T. P., Larson, G., Dalén, L., Hansen, A. J., Sinding, M. -H. S., Frantz, L., Feuerborn, T. R., Carmagnini, A., Losey, R. J., Nomokonova, T., Askeyev, A., Askeyev, I., Askeyev, O., Antipina, E. E., Appelt, M., Bachura, O. P., Beglane, F., Bradley, D. G., Daly, K. G., Gopalakrishnan, S., Gregersen, K. M., Guo, C., Gusev, A. V., Jones, C., Kosintsev, P. A., Kuzmin, Y. V., Mattiangeli, V., Perri, A. R., Plekhanov, A. V., Ramos-Madrigal, J., Schmidt, A. L., Shaymuratova, D., Smith, O., Yavorskaya, L. V., Zhang, G., Willerslev, E., Meldgaard, M., Gilbert, M. T. P., Larson, G., Dalén, L., Hansen, A. J., Sinding, M. -H. S., and Frantz, L.
- Abstract
Dogs have been essential to life in the Siberian Arctic for over 9,500 y, and this tight link between people and dogs continues in Siberian communities. Although Arctic Siberian groups such as the Nenets received limited gene flow from neighboring groups, archaeological evidence suggests that metallurgy and new subsistence strategies emerged in Northwest Siberia around 2,000 y ago. It is unclear if the Siberian Arctic dog population was as continuous as the people of the region or if instead admixture occurred, possibly in relation to the influx of material culture from other parts of Eurasia. To address this question, we sequenced and analyzed the genomes of 20 ancient and historical Siberian and Eurasian Steppe dogs. Our analyses indicate that while Siberian dogs were genetically homogenous between 9,500 to 7,000 y ago, later introduction of dogs from the Eurasian Steppe and Europe led to substantial admixture. This is clearly the case in the Iamal-Nenets region (Northwestern Siberia) where dogs from the Iron Age period (∼2,000 y ago) possess substantially less ancestry related to European and Steppe dogs than dogs from the medieval period (∼1,000 y ago). Combined with findings of nonlocal materials recovered from these archaeological sites, including glass beads and metal items, these results indicate that Northwest Siberian communities were connected to a larger trade network through which they acquired genetically distinctive dogs from other regions. These exchanges were part of a series of major societal changes, including the rise of large-scale reindeer pastoralism ∼800 y ago. © 2021 National Academy of Sciences. All rights reserved.
- Published
- 2021
3. Modern Siberian dog ancestry was shaped by several thousand years of Eurasian-wide trade and human dispersal
- Author
-
Feuerborn, T R, Carmagnini, A, Losey, R J, Nomokonova, T, Askeyev, A, Askeyev, I, Askeyev, O, Antipina, E E, Appelt, M, Bachura, O P, Beglane, F, Bradley, D G, Daly, K G, Gopalakrishnan, S, Gregersen, K M, Guo, C X, Gusev, A V, Jones, C, Kosintsev, P A, Kuzmin, Y V, Mattiangeli, V, Perri, A R, Plekhanov, A V, Ramos-Madrigal, J, Schmidt, A L, Shaymuratova, D, Smith, O, Yavorskaya, L V, Zhang, G J, Willerslev, E, Meldgaard, M, Gilbert, M T P, Larson, G, Dalen, L, Hansen, A J, Sinding, M H S, Frantz, L, Feuerborn, T R, Carmagnini, A, Losey, R J, Nomokonova, T, Askeyev, A, Askeyev, I, Askeyev, O, Antipina, E E, Appelt, M, Bachura, O P, Beglane, F, Bradley, D G, Daly, K G, Gopalakrishnan, S, Gregersen, K M, Guo, C X, Gusev, A V, Jones, C, Kosintsev, P A, Kuzmin, Y V, Mattiangeli, V, Perri, A R, Plekhanov, A V, Ramos-Madrigal, J, Schmidt, A L, Shaymuratova, D, Smith, O, Yavorskaya, L V, Zhang, G J, Willerslev, E, Meldgaard, M, Gilbert, M T P, Larson, G, Dalen, L, Hansen, A J, Sinding, M H S, and Frantz, L
- Published
- 2021
- Full Text
- View/download PDF
4. Moose genomes reveal past glacial demography and the origin of modern lineages
- Author
-
Dussex, N. (Nicolas), Alberti, F. (Federica), Heino, M. T. (Matti T.), Olsen, R.-A. (Remi-Andre), van der Valk, T. (Tom), Ryman, N. (Nils), Laikre, L. (Linda), Ahlgren, H. (Hans), Askeyev, I. V. (Igor V.), Askeyev, O. V. (Oleg V.), Shaymuratova, D. N. (Dilyara N.), Askeyev, A. O. (Arthur O.), Döppes, D. (Doris), Friedrich, R. (Ronny), Lindauer, S. (Susanne), Rosendahl, W. (Wilfried), Aspi, J. (Jouni), Hofreiter, M. (Michael), Lidén, K. (Kerstin), Dalén, L. (Love), Díez-del-Molino, D. (David), Dussex, N. (Nicolas), Alberti, F. (Federica), Heino, M. T. (Matti T.), Olsen, R.-A. (Remi-Andre), van der Valk, T. (Tom), Ryman, N. (Nils), Laikre, L. (Linda), Ahlgren, H. (Hans), Askeyev, I. V. (Igor V.), Askeyev, O. V. (Oleg V.), Shaymuratova, D. N. (Dilyara N.), Askeyev, A. O. (Arthur O.), Döppes, D. (Doris), Friedrich, R. (Ronny), Lindauer, S. (Susanne), Rosendahl, W. (Wilfried), Aspi, J. (Jouni), Hofreiter, M. (Michael), Lidén, K. (Kerstin), Dalén, L. (Love), and Díez-del-Molino, D. (David)
- Abstract
Background: Numerous megafauna species from northern latitudes went extinct during the Pleistocene/Holocene transition as a result of climate-induced habitat changes. However, several ungulate species managed to successfully track their habitats during this period to eventually flourish and recolonise the holarctic regions. So far, the genomic impacts of these climate fluctuations on ungulates from high latitudes have been little explored. Here, we assemble a de-novo genome for the European moose (Alces alces) and analyse it together with re-sequenced nuclear genomes and ancient and modern mitogenomes from across the moose range in Eurasia and North America. Results: We found that moose demographic history was greatly influenced by glacial cycles, with demographic responses to the Pleistocene/Holocene transition similar to other temperate ungulates. Our results further support that modern moose lineages trace their origin back to populations that inhabited distinct glacial refugia during the Last Glacial Maximum (LGM). Finally, we found that present day moose in Europe and North America show low to moderate inbreeding levels resulting from post-glacial bottlenecks and founder effects, but no evidence for recent inbreeding resulting from human-induced population declines. Conclusions: Taken together, our results highlight the dynamic recent evolutionary history of the moose and provide an important resource for further genomic studies.
- Published
- 2020
5. The effect of climate on the phenology, acorn crop and radial increment of pedunculate oak (Quercus robur) in the middle Volga region, Tatarstan, Russia
- Author
-
Askeyev, O. V., Tischin, D., Sparks, T. H., and Askeyev, I. V.
- Published
- 2005
- Full Text
- View/download PDF
6. 4000-year-old reindeer mitogenomes from the Volga-Kama region reveal continuity among the forest reindeer in northeastern part of European Russia
- Author
-
Heino, M. T. (Matti T.), Askeyev, I. V. (Igor V.), Shaymuratova (Galimova), D. N. (Dilyara N.), Askeyev, O. V. (Oleg V.), Askeyev, A. O. (Arthur O.), van der Valk, T. (Tom), Pečnerová, P. (Patrícia), Dalén, L. (Love), and Aspi, J. (Jouni)
- Abstract
There are three main ecotypes of reindeer in Eurasia: tundra reindeer, boreal forest reindeer and High Arctic reindeer. Of these, especially the forest reindeer has suff ered due to human over hunting and habitat fragmentation. Forest reindeer was still found in the Volga-Kama region at the beginning of the 20th century, but has since disappeared from the region. In order to investigate the genetic relationships of these histori-cal, southernly distributed forest reindeer populations, the authors obtained mitogenome sequences from six individuals from Pestretsy II, an archaeological site located in Tatarstan and dated to around 4000 calibrated years before the present (cal BP). The sequences reported in this study represent the fi rst published ancient reindeer mitogenomes. The authors observed genetic continuity between the historical reindeer from Tatarstan and present day wild populations from the taiga zone of northeastern part of European Russia. Interestingly, four out of the six studied individuals belong to mitochondrial control region haplogroup II, which today is a major haplogroup among the semi-domestic reindeer in Fennoscandia. Even though the haplotypes observed in Pestretsy II site are not closely related to the major haplotypes observed among the Fennoscandian semi-domestic reindeer, the results suggest that this haplogroup may have its origin east of Fennoscandia. It is also interesting to note that the size of the reindeers from the Pestretsy II site was one of the largest observed in the Holocene. Аннотация В Евразии существует три основных экотипа северного оленя: тундровый северный олень, таежный северный олень и высокоарктический северный олень. Из них лесные северные олени особенно пострадали из-за чрезмерной охоты человека и фрагментации среды обитания. Лесной северный олень еще встречался в Волго-Камском регионе в начале XX века, но с тех пор исчез из данного региона. Чтобы исследовать генетические связи этих исторических, южно-распределенных популяций лесных северных оленей, авторы получили последовательности митогенома от шести особей из Пестречинской II стоянки, археологического памятника, расположенного в Татарстане и датируемого около 4000 калиброванных лет назад (кал. л.н.). Последовательности митохондриального ДНК, описанные в этом исследовании, представляют собой первые опубликованные древние митогеномы северного оленя. Авторы выявили генетическую преемственность между историческим северным оленем из Татарстана и современными дикими популяциями из таежной зоны северо-восточной части европейской части России. Интересно, что четыре из шести исследованных особей принадлежат к гаплогруппе II, она сегодня является основной гаплогруппой среди полудомашних оленей в Фенноскандии. Несмотря на то, что гаплотипы, наблюдаемые у северных оленей из Пестречинской II стоянки, не тесно связаны с основными гаплотипами, наблюдаемыми среди полудомашних северных оленей Фенноскандии, результаты показывают, что эта гаплогруппа может иметь свое происхождение к востоку от Фенноскандии. Интересно также отметить, что размеры северных оленей из Пестречинской II стоянки были одними из самых крупных наблюдавшихся в голоцене.
- Published
- 2019
7. Over a thousand years of evolutionary history of domestic geese from Russian archaeological sites, analysed using ancient DNA
- Author
-
Honka, J. (Johanna), Heino, M. T. (Matti T.), Kvist, L. (Laura), Askeyev, I. V. (Igor V.), Shaymuratova, D. N. (Dilyara N.), Askeyev, O. V. (Oleg V.), Askeyev, A. O. (Arthur O.), Heikkinen, M. E. (Marja E.), Searle, J. B. (Jeremy B.), and Aspi, J. (Jouni)
- Subjects
domestication ,Medieval Period ,greylag goose ,mitochondrial DNA ,Anser anser ,D-loop ,control region - Abstract
The European domestic goose is a widely farmed species known to have descended from the wild greylag goose (Anser anser). However, the evolutionary history of this domesticate is still poorly known. Ancient DNA studies have been useful for many species, but there has been little such work on geese. We have studied temporal genetic variation among domestic goose specimens excavated from Russian archaeological sites (4th–18th centuries) using a 204 base pair fragment of the mitochondrial control region. Specimens fell into three different genetic clades: the domestic D-haplogroup, the F-haplogroup that includes both wild and domestic geese, and a clade comprising another species, the taiga bean goose. Most of the subfossil geese carried typical domestic D-haplotypes. The domestication status of the geese carrying F-haplotypes is less certain, as the haplotypes identified were not present among modern domestic geese and could represent wild geese (misclassified as domestics), introgression from wild geese, or local domestication events. The bones of taiga bean goose were most probably misidentified as domestic goose but the domestication of bean goose or hybridization with domestic goose is also possible. Samples from the 4th to 10th century were clearly differentiated from the later time periods due to a haplotype that was found only in this early period, but otherwise no temporal or geographical variation in haplotype frequencies was apparent.
- Published
- 2018
8. Seasonality Estimation of Archaeological Sites Basing on Fish Bone Remains. The Case of Eneolithic Workshop Site Fofanovo XIII in Lake Onega
- Author
-
Askeyev Igor V., Tarasov Alexey Yu., Shaymuratova Dilyara N., Askeyev Arthur O., Monakhov Sergey P., and Askeyev Oleg V.
- Subjects
аrchaeology ,osteological analysis ,karelia ,russian karelian type ,workshop ,seasonality ,zander ,vertebrae ,annual rings ,Archaeology ,CC1-960 - Abstract
Excavations of the Eneolithic workshop site for making stone chopping tools the Fofanovo XIII on the western shore of Lake Onega (second half of the IV Millennium calBC) provided representative and faunistic assemblage consisting of relatively well preserved bones for the frst time in the Karelian archaeology. The assemblage makes it possible to study different aspects of the activity of the ancient population related to the exploitation of faunistic resources. The article presents the results of a seasonality estimation that is based on the analysis of the bone remains (vertebrae) of the absolutely prevailing in the assemblage specie – the zander. The authors’ analysis testifes that zander capturing was taking place during the snow-less season. This result confrms interpretation of the site as a specialized complex for seasonal specifc activities and for year-round habitation.
- Published
- 2022
- Full Text
- View/download PDF
9. Lack of mtDNA variation among remote middle Volga and upper Ural brown trout suggests recent and rapid recolonization
- Author
-
Marić, S., primary, Askeyev, O., additional, Askeyev, A., additional, Monakhov, S., additional, Yanybaev, N., additional, Askeyev, I., additional, Galimova, D., additional, and Snoj, A., additional
- Published
- 2016
- Full Text
- View/download PDF
10. A Zooarchaeological and Molecular Assessment of Ancient Chicken Remains from Russia
- Author
-
Ophélie Lebrasseur, Shaymuratova Dilyara N., Askeyev Arthur O., Asylgaraeva Gulshat Sh., Laurent Frantz, Greger Larson, Askeyev Oleg V., and Askeyev Igor V.
- Subjects
zooarchaeology ,volga region ,russia ,medieval period ,chicken ,ancient dna ,dispersal ,Archaeology ,CC1-960 - Abstract
We here conduct ancient DNA analyses on 58 chicken bones from 15 archaeological sites (from the 9th to the 18th century AD) across the Volga region, the Leningrad region, the Pskov region, and the north of the Krasnoyarsk region to investigate genetic diversity of past chicken populations within this geographical area. We find all samples belong to sub-haplogroup E1, ubiquitous throughout the world and dominant in Europe, Africa and the Americas. This supports an introduction of chickens from the west, rather than a direct introduction from East Asia. Our study also demonstrates good endogenous DNA content, confirming species identification and sex of the individuals, thus highlighting the potential of genetic studies on archaeological remains in that region.
- Published
- 2021
- Full Text
- View/download PDF
11. Archaeogenomics of Animal Domestication in Eurasia
- Author
-
Trifonov Vladimir A., Shaymuratova Dilyara N., Asylgaraeva Gulshat Sh., Monakhov Sergey P., Molodtseva Anna S., Askeyev Arthur O., Askeyev Igor V., and Askeyev Oleg V.
- Subjects
ancient dna ,archaeology ,archaeogenomics ,domestication ,population history ,demographic dynamics ,haplotypes ,Archaeology ,CC1-960 - Abstract
The processes of domestication and subsequent distribution of animals in Eurasia are closely related to human migrations and intercultural exchanges starting from the end of the Pleistocene. The development of methods for the isolation and analysis of ancient DNA from archaeological and paleontological remains has made it possible to take a new look at both the presumed core regions of domestication and the geography and dynamics of livestock distribution. This paper discusses the reports on the reconstruction of the migration processes of domestic animals in Eurasia using the analysis of ancient DNA performed by leading specialists from Great Britain, France, Finland, Ireland, and Russia at the international symposium on Domestic Animal Archaeogenomics (Bolgar, Republic of Tatarstan, March 2020). In addition to discussing the demographic history of different species of domestic animals, special attention was given to the development of methods for working with ancient DNA and the peculiarities of sample storage and handling. Summarizing the results of the symposium, the authors identified priority areas for future research. The interdisciplinary nature of research and the need to create broad scientific network that includes specialists from different fields were emphasized.
- Published
- 2021
- Full Text
- View/download PDF
12. First mtDNA sequencing of Volga and Ob basin taimen Hucho taimen : European populations stem from a late Pleistocene expansion of H. taimen out of western Siberia and are not intermediate to Hucho hucho
- Author
-
Marić, S., primary, Alekseyev, S., additional, Snoj, A., additional, Askeyev, O., additional, Askeyev, I., additional, and Weiss, S., additional
- Published
- 2014
- Full Text
- View/download PDF
13. Bird Remains from 5th - 17th Century AD Archaeological Sites in the Middle Volga Region of Russia
- Author
-
Galimova, D. N., primary, Askeyev, I. V., additional, and Askeyev, O. V., additional
- Published
- 2014
- Full Text
- View/download PDF
14. Ichthyofauna of the middle Volga River basin in the Late Holocene (based on archaeological excavationS)
- Author
-
Askeyev, I. V., primary, Galimova, D. N., additional, and Askeyev, O. V., additional
- Published
- 2013
- Full Text
- View/download PDF
15. The effect of climate on the phenology, acorn crop and radial increment of pedunculate oak (Quercus robur) in the middle Volga region, Tatarstan, Russia
- Author
-
Askeyev, O. V., primary, Tischin, D., additional, Sparks, T. H., additional, and Askeyev, I. V., additional
- Published
- 2004
- Full Text
- View/download PDF
16. Bird Remains from 5th - 17th Century AD Archaeological Sites in the Middle Volga Region of Russia.
- Author
-
Galimova, D. N., Askeyev, I. V., and Askeyev, O. V.
- Subjects
BIRD remains (Archaeology) ,ZOOARCHAEOLOGY ,ARCHAEOLOGICAL excavations ,POULTRY research ,SPECIES - Abstract
ABSTRACT This article presents research findings of bird remains from 22 archaeological sites of the 5th-17th centuries AD from the Middle Volga region of Russia. We identified 53 species: 50 wild species and three domestic. Remains of domestic chickens were most numerous. The predominance of bones of domestic birds and the variety of sizes at most archaeological sites of the 10th-17th centuries AD demonstrated that the people of the Middle Volga region had already developed domestic poultry keeping. Both domestic and wild birds were diverse and played an important role in the economy of the human populations in historic times in the Middle Volga region. Copyright © 2013 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
17. Environment and Economic Activity of the Pestretsy 2 Site Inhabitants on the Mesha River
- Author
-
Galimova Madina Sh., Khisiametdinova Asia A., Askeyev Igor V., Shaymuratova (Galimova) Dilyara N., and Askeyev Oleg V.
- Subjects
archaeology ,zoology ,paleo-ecology ,Bronze Age ,stone tools ,animal remains ,Middle Volga region ,Archaeology ,CC1-960 - Abstract
Preliminary results of integrated archaeological and paleo-ecological research in the multilayer site Pestretsy 2 on the Mesha river (Middle Volga region) are discussed in the article. As a result of geology and geomorphology studies, it was found that cultural layers of the Bronze and Early Iron Ages occurred in the buried soil complex, which was coated by river fresh deposits formed in 19th–20th centuries. According paleo-geography data, the site was situated on elevated plot in the lake-marsh basin, the basin, which radiocarbon age is about 4 thousand years ago. The site seems to be the remnants of the Late Bronze long-term settlement (at least in excavated part) belonging to so called Zaymishche cultural type as shown by stratigraphy, planigraphy and stone artifacts data. The shouldered arrowhead with barbs and triangular stem of the Seyma type found in this layer allows us to refer it to the 18th–16thth centuries. As for the subsequent Ananyino and Azelino cultural layers, they were apparently short-term camps. Numerous faunal remains studied using archaeo-zoological methods, demonstrated animal husbandry practice houses adjoining (so called “forest”) type combined with highly developed hunting and seasonal fishing. Use-wear analysis of stone inventory confirms the authors conclusion.
- Published
- 2016
18. Birds of the Middle Volga River Region in 5th to 18th Centuries AD (based on the materials of archaeological excavations)
- Author
-
Askeyev Igor V., Galimova Dilyara N., and Askeyev Oleg V.
- Subjects
the Middle Volga river region ,the Early and Later Middle Ages ,archaeozoological studies ,bone remains of birds ,specific structure ,domestication ,Archaeology ,CC1-960 - Abstract
Summarized research data of bird bone remains remnants from 23 archaeological sites located in the Middle Volga area and referring to the 5th–18th centuries AD are presented in the article. The material has been considered in accordance with four cultural-chronological periods: the 5th to 7th centuries AD (the Imenkovo culture); the 10th – first half of the 13th century (Volga Bulgaria); second half of the 13th to the 15th century (the Golden Horde period), and the mid-16th through 18th century (the Middle Volga river region within the Russian state). It has been found that the remains of birds from the medieval and post-medieval archaeological sites of the Middle Volga region reflect a wide specific diversity. The data about the time of domestic birds appearance in the Middle Volga region are provided. The quantitative ratio of bone remains of wild and domestic birds in the period from the Early to the Later Middle Ages and afterwards makes it possible to trace the tendency to the increase in the share of domestic birds. Bird utilization by different ethnic groups of the medieval population of the region was diverse: for food, for feathers and down, as well as in ritual and religious practice.
- Published
- 2013
- Full Text
- View/download PDF
19. Spring migration timing of Sylvia warblers in Tatarstan (Russia) 1957–2008
- Author
-
Askeyev Oleg, Sparks Tim, Askeyev Igor, and Tryjanowski Piotr
- Subjects
arrivals ,co-fluctuation ,phenology ,temperature ,russia ,sylvia ,wintering areas ,Biology (General) ,QH301-705.5 - Published
- 2009
- Full Text
- View/download PDF
20. East versus West: Contrasts in phenological patterns?
- Author
-
Askeyev O., Sparks T., Askeyev I., Tishin D., Tryjanowski P., Askeyev O., Sparks T., Askeyev I., Tishin D., and Tryjanowski P.
- Abstract
Aim To examine whether change in the timing of a large number of phenological events and their response to temperature differs between trophic levels during the period 1988-2008.Location In the vicinity of Kazan, Tatarstan Republic, Russia (55°45' N, 49°08' E).Methods Observations of the dates of first events of 22 plant phases, 8 insect phases, 3 herpetofauna phases and 26 migrant bird phases were examined using regression to assess changes over time and response to temperature. Differences between trophic levels were assessed using ANOVA.Results In comparison to studies from western Europe, relatively few phenological series (15) revealed a significant advance over time, but a much larger number (37), including all the herpetofauna and nearly all the plants, showed a response to temperature. Trends in birds were, on average, twice as great as those for plants, but plants had a significantly greater temperature response. Over the study period local temperatures had not risen significantly but some phenological change was still evident.Main conclusions Phenological change has been less marked in the eastern edge of Europe than in western and central Europe. This is compatible with a lack of significant local warming during the study period. A large number of species show strong responses to temperature so will be expected to advance if/when local temperatures do increase. In contrast to results from elsewhere in Europe, early events were not the most temperature responsive, suggesting local adaptation preventing precocious behaviour and the consequent dangers of sub-zero temperatures. © 2010 Blackwell Publishing Ltd.
21. East versus West: Contrasts in phenological patterns?
- Author
-
Askeyev O., Sparks T., Askeyev I., Tishin D., Tryjanowski P., Askeyev O., Sparks T., Askeyev I., Tishin D., and Tryjanowski P.
- Abstract
Aim To examine whether change in the timing of a large number of phenological events and their response to temperature differs between trophic levels during the period 1988-2008.Location In the vicinity of Kazan, Tatarstan Republic, Russia (55°45' N, 49°08' E).Methods Observations of the dates of first events of 22 plant phases, 8 insect phases, 3 herpetofauna phases and 26 migrant bird phases were examined using regression to assess changes over time and response to temperature. Differences between trophic levels were assessed using ANOVA.Results In comparison to studies from western Europe, relatively few phenological series (15) revealed a significant advance over time, but a much larger number (37), including all the herpetofauna and nearly all the plants, showed a response to temperature. Trends in birds were, on average, twice as great as those for plants, but plants had a significantly greater temperature response. Over the study period local temperatures had not risen significantly but some phenological change was still evident.Main conclusions Phenological change has been less marked in the eastern edge of Europe than in western and central Europe. This is compatible with a lack of significant local warming during the study period. A large number of species show strong responses to temperature so will be expected to advance if/when local temperatures do increase. In contrast to results from elsewhere in Europe, early events were not the most temperature responsive, suggesting local adaptation preventing precocious behaviour and the consequent dangers of sub-zero temperatures. © 2010 Blackwell Publishing Ltd.
22. Significantly Earlier Spring Migration in Most Bird Species at the Eastern Limit of Europe.
- Author
-
Askeyev O, Askeyev A, Askeyev I, and Sparks T
- Abstract
The first arrival dates of 31 species of migrant birds in the Tatarstan Republic of Russia were monitored for the 34-year period from 1989-2022. Trends in first arrival date were evaluated using regression against the year value. Patterns in arrival data with respect to species traits (habitat, migration distance, body weight, etc.) were evaluated using redundancy analysis. Relationships between first arrival dates and Tatarstan temperatures were also evaluated using regression methods of first-arrival date on monthly mean temperatures. Almost all (28 of 31) species revealed a significantly earlier migration arrival date; however, associations between arrival patterns and species traits were equivocal. Warmer temperatures were significantly associated with earlier arrival in 26 of the 31 species, but the relationship was insufficient to explain the average 11-day advance in species. For these species and in this location only the timing and location of arrival are well recorded; the exact wintering areas and migration routes, and the timing of these phases are less well understood. When these become better known, an investigation of the influence of environmental conditions (including temperature) on departure timing and passage timing and speed is recommended.
- Published
- 2023
- Full Text
- View/download PDF
23. Modern Siberian dog ancestry was shaped by several thousand years of Eurasian-wide trade and human dispersal.
- Author
-
Feuerborn TR, Carmagnini A, Losey RJ, Nomokonova T, Askeyev A, Askeyev I, Askeyev O, Antipina EE, Appelt M, Bachura OP, Beglane F, Bradley DG, Daly KG, Gopalakrishnan S, Murphy Gregersen K, Guo C, Gusev AV, Jones C, Kosintsev PA, Kuzmin YV, Mattiangeli V, Perri AR, Plekhanov AV, Ramos-Madrigal J, Schmidt AL, Shaymuratova D, Smith O, Yavorskaya LV, Zhang G, Willerslev E, Meldgaard M, Gilbert MTP, Larson G, Dalén L, Hansen AJ, Sinding MS, and Frantz L
- Subjects
- Animals, Archaeology, Humans, Siberia, Animal Distribution, Biological Evolution, Dogs genetics, Gene Flow, Genetics, Population, Genome, Human Migration
- Abstract
Dogs have been essential to life in the Siberian Arctic for over 9,500 y, and this tight link between people and dogs continues in Siberian communities. Although Arctic Siberian groups such as the Nenets received limited gene flow from neighboring groups, archaeological evidence suggests that metallurgy and new subsistence strategies emerged in Northwest Siberia around 2,000 y ago. It is unclear if the Siberian Arctic dog population was as continuous as the people of the region or if instead admixture occurred, possibly in relation to the influx of material culture from other parts of Eurasia. To address this question, we sequenced and analyzed the genomes of 20 ancient and historical Siberian and Eurasian Steppe dogs. Our analyses indicate that while Siberian dogs were genetically homogenous between 9,500 to 7,000 y ago, later introduction of dogs from the Eurasian Steppe and Europe led to substantial admixture. This is clearly the case in the Iamal-Nenets region (Northwestern Siberia) where dogs from the Iron Age period (∼2,000 y ago) possess substantially less ancestry related to European and Steppe dogs than dogs from the medieval period (∼1,000 y ago). Combined with findings of nonlocal materials recovered from these archaeological sites, including glass beads and metal items, these results indicate that Northwest Siberian communities were connected to a larger trade network through which they acquired genetically distinctive dogs from other regions. These exchanges were part of a series of major societal changes, including the rise of large-scale reindeer pastoralism ∼800 y ago., Competing Interests: The authors declare no competing interest., (Copyright © 2021 the Author(s). Published by PNAS.)
- Published
- 2021
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.