Russian scientists’ efforts targeted to recover European bison (Bison bonasus) which are exterminated everywhere have succeeded. According to the results of the all-Russian accounting of the bison quantity, their population has grown by 20% within the last five years. Herds of these relic ungulates living at large is a dream that has good chances to come true.
The last wild bison were exterminated by 1927, only 48 animals remained scattered all over the Zoos of different countries, although in former times they used to reign in the forest expanses of Europe. It took about seventy years of rearing – first in the zoological gardens, then in the breeding nurseries in the natural environment to recover the species. Thanks to the scientists’ effort, by the end of the 20th century bison all over the world numbered almost three thousand, out of which 1,738 bison lived in free populations in Poland and the former USSR. The international community of researchers involved in the species recovery has won the victory: no longer is there a threat of extinction to the bison.
Nevertheless, it is premature to rest on our laurels as the species can not exist without assistance from people. The major problem the species faces is the deficiency of genetic diversity. All contemporary bison originate from only twelve bulls, this number being too small. Forced to interbreed with near relations, bison produce weakened posterity. Thoroughbred bison in Russia are now 350 in number– these are the counting results published at the research-and-practical conference in the Prioksko- terraced preserve. However, the rescue of bison can be ensured only by establishment of large free populations containing a thousand of animals or even more.
Sergey Komarov | alfa
Litter is present throughout the world’s oceans: 1,220 species affected
27.03.2017 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
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21.03.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
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Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
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