Results 121 to 130 of about 15,285 (255)

Macrozoobenthos Communities from Floodplain Lakes of the Volga River Valley (Saratov Region) [PDF]

Izvestiya of Saratov University. New Series. Series: Chemistry. Biology. Ecology, 2013
I. V. Demina, M. V. Ermochin, N. V. Polukonova   +2 more
openaire   +1 more source

Features of the Distribution of Beaver Dams and Ponds along Small Rivers: The Volga-Kama Region, European Russia

Hydrology
In this paper, by using GNSS technologies, some features of the distribution and some morphometric parameters of dams and ponds created by the Eurasian beaver (Castor fiber L.) along ten rivers of the Volga-Kama region of European Russia were identified.
Artyom V. Gusarov, Aidar G. Sharifullin, Achim A. Beylich, Fedor N. Lisetskii   +3 more
openaire   +2 more sources

Genetic relationships among collections of the Persian sturgeon, Acipenser persicus, in the south Caspian Sea detected by mitochondrial DNA–Restriction fragment length polymorphisms [PDF]

, 2012
In the present study, mitochondrial DNA polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay was used to assess the population structure and genetic relationships among six Persian sturgeon, Acipenser persicus populations ...
Azizzadeh Pormehr, L., Khoshkholgh, M., Nazari, S., Pourkazemi, M.   +3 more
core   +1 more source

Morphometric Characteristics of Beaver Dams and Ponds in Small Rivers of the Volga-Kama Region, European Russia

The Bulletin of Irkutsk State University. Series Earth Sciences
In this paper, based on the results of a field survey using GNSS equipment, some morphometric characteristics of beaver (Castor fiber L.) dams (length, height and their ratio) and ponds (length) in ten small rivers of the Volga-Kama region are determined.
A. V. Gusarov, A. G. Sharifullin
openaire   +1 more source

REARRANGEMENT OF RIVER NETWORK AND DIRECTION OF WATERSHEDS DISPLACEMENT IN THE MIDDLE VOLGA REGION AT THE QUATERNARY TIME

Bulletin of Udmurt University. Series Biology. Earth Sciences, 2019
The Neogene river valleys of the Middle Volga region are widespread, and their location mainly corresponds to the modern river network. This indicates the sustainability of development of river valleys during Neogene-Quaternary time. The Neogene river network was laid in the Late Miocene.
openaire   +2 more sources

Water Conflict and Cooperation in Central Asia [PDF]

human development, water ...
Erika Weinthal
core  

The Marmara Sea Gateway since ~16 ky BP: non-catastrophic causes of paleoceanographic events in the Black Sea at 8.4 and 7.15 ky BP [PDF]

, 2007
The Late Quaternary history of connection of the Black Sea to the Eastern Mediterranean has been intensely debated. Ryan, Pitman and coworkers advocate two pulses of outflow from the Black Sea to the world ocean at ~16–14.7 ky BP and ~11–10 ky BP ...
Abrajano, T., Aksu, A.E., Hiscott, R.N., Kaminski, M.A., Mudie, P.J., Rochon, A., Yaşar, D.   +6 more
core  

First annotated checklist of Chironomidae of Rhodos, Greece (Insecta, Diptera) [PDF]

, 2008
Chironomid fauna of Greek Aegean islands, an essential part of the biogeographically important Mediterranean region, is almost unexplored, with only 36 species recorded prior to the present study.
Csabai, Zoltán Szabolcs, Móra, Arnold
core  

Biological Assessments of Six Selected Fishes, Amphibians, and Mussels in Illinois [PDF]

, 1996
ID: 8758; issued November 1, 1996INHS Technical Report prepared for Illinois Department of Natural Resources, Division of Natural ...
Cummings, Kevin S., Page, Lawrence M., Phillips, Christopher A.   +2 more
core  

Climatically driven loss of calcium in steppe soil as a sink for atmospheric carbon [PDF]

, 2008
During the last several thousand years the semi‐arid, cold climate of the Russian steppe formed highly fertile soils rich in organic carbon and calcium (classified as Chernozems in the Russian system).
Aparin, B. F., Bailey, S. W., Calef, M., Lapenis, A. G., Lawrence, G. B., Shiklomanov, Alexander I., Speranskaya, N. A., Torn, M. S.   +7 more
core   +1 more source