28 research outputs found

    Tutkimus myyrien population dynamikasta Eurasiassa, esimerkkinä MYODES-spp.

    Get PDF
    International Scientific Symposium:Ecology and evolution: New challenges. Ekaterinburg, Russia, April 1–5, 2019, p. 67-68.The material for the report was compiled during eight years of operation of the international network of cooperation “Eurasian Chronicle of Nature - Large Scale Analysis of Changing Ecosystems” (“Chronicle of the nature of Eurasia: a large-scale analysis of changing ecosystems”).The material for the report was compiled during eight years of operation of the international network of cooperation “Eurasian Chronicle of Nature - Large Scale Analysis of Changing Ecosystems” (“Chronicle of the nature of Eurasia: a large-scale analysis of changing ecosystems”).Peer reviewe

    DYNAMIC PROCESSES IN THE FAUNA OF THE VERTEBRATA OF WESTERN SIBERIA AND THEIR CAUSES

    Get PDF
    The paper shows that, in the past centuries, the anthropogenic transformation of the landscape against the climatic changes in Western Siberia favoured migration of one species of vertebrata and reduced areas of others, but with an obvious positive balance. Over the past 400 years, only 12 species of vertebrata (8 species of mammals and 4 species of birds) became extinct in Tyumen region, whereas 57 new species emerged (13 species of mammals and 27 species of birds). It is stated that the high rates of dynamics of fauna in Tyumen region fall within the last 50 years, and the highest of them account for the last 15 years, which primarily corresponds to the current trend of strengthening of continentality of the regional climate (due to the change of zonal circulation of air masses to meridional circulation) against the global warming in the north of the Northern Hemisphere of Earth because of the change of the axis of its rotation to the plane of the ecliptic.Peer reviewe

    PROJECT “CHRONICLES OF THE NATURE OF EURASIA”: EXPERIENCE OF RESEARCHING BIOTA RESPONSE TO CLIMATE CHANGE

    Get PDF
    В работе рассмотрены итоги девяти лет функционирования международного проекта, включающего Базу данных и Сеть сотрудничества в области биологического разнообразия экосистем Евразии. Проект объединяет 500 исследователей из 180 организаций 13 стран. Установлен ряд закономерностей изменений в динамике разнообразия биоты экосистем Евразии, в том числе – наличие динамики сезонных явлений в условиях изменения климата. Подчеркнуто значение «Летописей природы» на особо охраняемых природных территориях России как уникального исторического метода экологического мониторинга, не имеющего аналогов в мировой практике.Non peer reviewe

    KANSAINVÄLINEN PROJEKTI JA TIETOKANTA "EURASIAN LUONNOLLINEN REKISTERÖINTI" ESIMERKKIÄ LAAJAMITTAISESTA YMPÄRISTÖTUTKIMUKSEN INTEGROINTIIN EURASIAAN TAIGA BIOM:N PUHTEESSA

    Get PDF
    Proceedings on itse nimi englanninkielellä, mutta sisältö on eri kielellä (venäjä, englanti, ukraina), sen takia on erönlainen kieli sekannusNon peer reviewe

    Riistaeläinten populaatioiden dynamiikka Pohjois-Euroopassa: tiivistelmä : 7. kansainvälinen symposium. 24. – 28. Syyskuuta

    Get PDF
    We have studied Black Grouse population abundance and its dynamics in large regions of North-Europe and Urals’ taiga (Finland, Russian Karelia, Murmansk, Arhangel, Kirov and Komi regions and). The data is based on Winter Track Counts (WTC, Priklonski, 1973), where all grouse sightings are recorded. We also studied the longterm Black Grouse abundance changes in Russian and Belarus Natural Reserves (by “Chronical of Natural” Programme, including summer counts of forest grouses): Pinezhsky, Pechoro-Ilychskiy, National Park "Mechera", Nature Reserve "Kivach", "Bryansk Forest", Kostomuksha Nature Reserve Volzhsko-Kamsky National Nature Biosphere Reserve and Visimskiy State Nature Reserves. The highest and most stable abundances of Black Grouse were recorded from East Fennoscandia (Karelia – 3.6 birds per 10 km; Finland – 4.4, coefficient of variation – 12% and 27%, respectively), whereas in the Murmansk and Arkhangelsk Regions and Komi republic, e.g. the species abundance indices were 0.5, 2.5 and 1.1 birds per 10 km, respectively. The “Peak” and minimal abundance years do not concur in different regions of north-European taiga. In Komi in the period from 2001 to 2013, the number of the black grouse declined twice, in Arhangel in the period 30 years – decreased fivefold. In Tatarstan Republic (Volzhsko-Kamsky National Nature Biosphere Reserve) after 1980 abundance decreased rapidly and at last 10 tears – disappeared. In Central Siberia BG are small in numbers and rare. The data suggest Black Grouse abundance varies significantly across Northern Eurasia and among years. One may presume there are some factors acting in different directions: towards convergence and towards divergence of the trends.Peer reviewe

    Erot spatiaalisissa ja ajallisissa reaktionormeissa kevään ja syksyn fenologisille tapahtumille

    Get PDF
    For species to stay temporally tuned to their environment, they use cues such as the accumulation of degree-days. The relationships between the timing of a phenological event in a population and its environmental cue can be described by a population-level reaction norm. Variation in reaction norms along environmental gradients may either intensify the envi- ronmental effects on timing (cogradient variation) or attenu- ate the effects (countergradient variation). To resolve spatial and seasonal variation in species’ response, we use a unique dataset of 91 taxa and 178 phenological events observed across a network of 472 monitoring sites, spread across the nations of the former Soviet Union. We show that compared to local rates of advancement of phenological events with the advancement of temperature-related cues (i.e., variation within site over years), spatial variation in reaction normsPeer reviewe
    corecore