Results 61 to 70 of about 630 (148)
Holocene small mammals from caves localities of Usa river valley (Сhernyshev’s ridge, north-eastern part of European Russia) [PDF]
Reconstructing the Holocene history of the small mammal fauna is of special value because it provides an example of the natural development of mammalian communities under the influence of climate changes.
Kryazheva, I. V. +3 more
core +6 more sources
Heat waves in Poland: The relations to atmospheric circulation and Arctic warming
The main goal of the research was to study the changes in hot weather events in Poland and to find the atmospheric conditions and teleconnections that prevail in their occurrence. The increasing number of hot days and heat waves and their longer‐lasting in Poland are associated with the above‐normal MSLP and blocking system formation over the country ...
Joanna Jędruszkiewicz +2 more
wiley +1 more source
Newly recorded and rare Desmidiales (Charophyta: Conjugatophyceae) from the Middle Urals, Russia [PDF]
New disributional data on 14 previously unrecorded or rare species and varieties of algae belonging to Closteriaceae, Desmidiaceae, Gonatozygaceae and Peniaceae (order Desmidiales) are presented for the Middle Urals. Closterium cornu Ehrenberg ex Ralfs,
Andrey Shakhmatov
core +2 more sources
ABSTRACT The Early to Mid‐Holocene experienced marked climate change over the northern hemisphere mid‐latitudes in response to changing insolation and declining ice volume. Oxygen isotopes from lake sediments provide a valuable climate proxy, encoding information regarding temperature, hydroclimate and moisture source. We present oxygen‐isotope records
Jonathan A. Holmes +5 more
wiley +1 more source
Methods of palaeobiogeographic analysis [PDF]
Se señalan algunos de los problemas y dificultades con que se enfrentan lospaleobiogeógrafos, poniéndose de manifiesto numerosos modelos experimenta- les.
Hallam, A.
core +1 more source
Biodiversity Evolution of a Shrub Betula nana L. Populations in the Urals
Genetic polymorphism of B. nana along the Ural ridge is analyzed based on the variability of trnS-trnG, trnL-trnF, trnS-trnT, trnK1-trnK2, and matK1 cpDNA markers with the application of the RFLP method. Specimens of B. pubescens were additionally taken for comparative analysis. The research revealed 12 chlorotypes in B. nana and B.
Olga Cherepanova +6 more
wiley +1 more source
Some observed seasonal changes in extratropical general circulation: A study in terms of vorticity [PDF]
Extratropical eddy distributions in four months typical of the four seasons are treated in terms of temporal mean and temporal r.m.s. values of the geostrophic relative vorticity.
Reiter, E. R., Srivatsangam, S.
core +1 more source
EXTRACTION OF CRISTOBALITE FROM MILKY-WHITE FORMS OF QUARTZ STUFF1 [PDF]
Natural quartz is one of die main sources of getting a unique material - quartz glass. Wide application of quartz glass in chemical and electronic industry, aviation and cosmonautics, fibre optics and computer techniques makes it absolutely indispensable.
Issaev, V., Oreshnikova, N.
core +3 more sources
Impacts of climate change on vegetation distribution. No. 1: Climate change induced vegetation shifts in the palearctic region [PDF]
Global average temperature has increased and precipitation pattern has altered over the past 100 years due to increases in greenhouse gases. These changes will alter numerous site factors and biochemical processes of vegetative communities such as ...
Garamvölgyi , Ágnes, Hufnagel, Levente
core
In 1967‑2015, Institute of Geography of the USSR/Russian Academy of Sciences together with other organizations carried out field expeditions in different areas of mountain and polar glaciations in many regions: the Polar Urals, Caucasus, Pamir, Zailiysky
V. M. Kotlyakov, Yu. Ya. Macheret
doaj +1 more source

