Selecting seeds for long-term storage is a key factor for food hoarding animals. Siberian chipmunks (Tamias sibiricus) remove the pericarp and scatter hoard sound acorns of Quercus mongolica over those that are insect-infested to maximize returns from caches. We have no knowledge of whether these chipmunks remove the pericarp from acorns of other species of oaks and if this behavior benefits se...

Tundra ecosystems are vulnerable to hydrocarbon development, in part because small-scale, low-intensity disturbances can affect vegetation, permafrost soils, and wildlife out of proportion to their spatial extent. Scaling up to include human residents, tightly integrated arctic social-ecological systems (SESs) are believed similarly susceptible to industrial impacts and climate change. In contr...

introduction climate change is an important environmental hazard that has been discussed in recent years. increasing the number or frequency of extreme climatic events such as severe droughts, floods, storms, heat and cold waves and heavy rains are the evidences of climate change. any of these events, due to the severity and persistence and their spread are a natural hazard that adverse effects...

We examined genetic variation on the nonrecombining portion of the Y chromosome (NRY) to investigate the paternal population structure of indigenous Siberian groups and to reconstruct the historical events leading to the peopling of Siberia. A set of 62 biallelic markers on the NRY were genotyped in 1432 males representing 18 Siberian populations, as well as nine populations from Central and Ea...

The objective of this study was to test the potential for using a single-entry procedure to revegetate Russian knapweed– and green rabbitbrush–infested rangeland. I hypothesized that simultaneously applying an herbicide and seeding in the fall would produce the highest establishment and growth of desired species. For Russian knapweed, treatments included three seeding rates (zero, low, and high...

the mrna expression of growth hormone (gh) gene in early development stages of siberian sturgeon was investigated using rt-pcr method. samples were collected from unfertilized eggs up to 50 days post hatched (dph) larvae in 11 different times. ribosomal protein l6 (rpl6) transcripts were used as the internal standard during quantification of gh mrna expression. the results showed that the gh mr...

The paper reviews the socio-cultural consequences of border trade between Russia and China in Kyakhta 18th century, formation two regional architectural schools: temple baroque style Totma similar one Baikal region. development Russо-Chinese confessional cultural contacts including origin so called style, “cultural dialogue” Orthodoxy Buddhism region its reflection architecture Siberian Baroque...

[1] Measurements of solute concentrations from previously unstudied watersheds throughout west Siberia suggest that warming and permafrost degradation will likely amplify the transport of dissolved solids to the Kara Sea and adjacent Arctic Ocean. We present concentrations of Ca, K, Mg, Na, Si, Cl , SO4 2 , HCO3 , inferred alkalinity, and total inorganic solutes (TIS) from 94 streams and rivers...

Although new antidiabetic agents are introduced, alternative medicine with natural compounds such as ginseng offer a potential benefit, as they have a wide margin of safety with no no side-effects. Following informed consent patients with type 2 diabetes (oral medication 80%, insulin therapy 20%) were randomly assigned to receive an extract of Siberian (480 mg/day; n = 27) American (Panax) gins...

knife. Only one knife was found, and, according to both men's stories, only one knife was used. Not much inference could be drawn from the situati on or direction of the wounds; though the fact that the largest of the three sligh t wounds on Inait's throat was deepest on the right, and tailed off to the left, was rather against its having been selfinflicted. The case against Sahadut was dismiss...