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Oleg Semenov-Tian-Shansky
Oleg Ismailovich Semyonov-Tyan-Shansky (October 15, 1906 – September 21, 1990) was a Soviet ornithologist, naturalist and a founder of the Lapland nature reserve. Life and work Semyonov-Tyan-Shansky was the son of Ishmael Petrovich, a meteorologist and his wife, who was the daughter of a Moscow physician. He was a grandson of the explorer Pyotr Semyonov-Tyan-Shansky and a nephew of the entomologist Andrey Semyonov-Tyan-Shansky. He grew up in Petrograd until 1917, when his family moved to Petrovka in Tambov. In 1929, the family returned to Leningrad, where his father got work as a meteorologist. In 1930, Semyonov-Tyan-Shansky moved to the Kola Peninsula as a research assistant and was then sent to the Lapland reserve to make scientific observations. Here he examined reindeer populations, was involved in the introduction of muskrats and beavers; and wrote several reports. During World War II Semyonov-Tyan-Shansky was considered unfit for field service but was enr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithology
Ornithology is a branch of zoology that concerns the "methodological study and consequent knowledge of birds with all that relates to them." Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support. Studies on birds have helped develop key concepts in biology including evolution, behaviour and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, island biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. Most modern biological theories apply across life forms, and the number of scientists w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaver
Beavers are large, semiaquatic rodents in the genus ''Castor'' native to the temperate Northern Hemisphere. There are two extant species: the North American beaver (''Castor canadensis'') and the Eurasian beaver (''C. fiber''). Beavers are the second-largest living rodents after the capybaras. They have stout bodies with large heads, long chisel-like incisors, brown or gray fur, hand-like front feet, webbed back feet and flat, scaly tails. The two species differ in the shape of the skull and tail and fur color. Beavers can be found in a number of freshwater habitats, such as rivers, streams, lakes and ponds. They are herbivorous, consuming tree bark, aquatic plants, grasses and sedges. Beavers build dams and lodges using tree branches, vegetation, rocks and mud; they chew down trees for building material. Dams impound water and lodges serve as shelters. Their infrastructure creates wetlands used by many other species, and because of their effect on other organisms in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1906 Births
Events January–February * January 12 – Persian Constitutional Revolution: A nationalistic coalition of merchants, religious leaders and intellectuals in Persia forces the shah Mozaffar ad-Din Shah Qajar to grant a constitution, and establish a national assembly, the Majlis. * January 16–April 7 – The Algeciras Conference convenes, to resolve the First Moroccan Crisis between France and Germany. * January 22 – The strikes a reef off Vancouver Island, Canada, killing over 100 (officially 136) in the ensuing disaster. * January 31 – The Ecuador–Colombia earthquake (8.8 on the Moment magnitude scale), and associated tsunami, cause at least 500 deaths. * February 7 – is launched, sparking a naval race between Britain and Germany. * February 11 ** Pope Pius X publishes the encyclical ''Vehementer Nos'', denouncing the 1905 French law on the Separation of the Churches and the State. ** Two British members of a poll tax collecting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Biologists
This list of Russian biologists includes the famous biologists from the Russian Federation, the Soviet Union, the Russian Empire and other predecessor states of Russia. Biologists of all specialities may be listed here, including ecologists, botanists, zoologists, paleontologists, biochemists, physiologists and others. Alphabetical list A * Johann Friedrich Adam, discoverer of the Adams mammoth, the first complete woolly mammoth skeleton * Igor Akimushkin, biologist * Vladimir Prokhorovich Amalitskii, paleontologist * Nicolai Andrusov, paleontologist *Andrey Avinoff, entomologist * Anatoly Andriyashev, ichthyologist, zoogeographist B *Karl Ernst von Baer, naturalist, founder of the Russian Entomological Society, formulated embryological Baer's laws *Alexander Barchenko, notable for his research of Hyperborea *Jacques von Bedriaga, prominent herpetologist, described Bedriaga's rock lizard and Bedriaga's skink * Andrey Belozersky, founder of molecular biology * Dmitry Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Grouse
The black grouse (''Lyrurus tetrix''), also known as northern black grouse, Eurasian black grouse, blackgame or blackcock, is a large game bird in the grouse family. It is a sedentary species, spanning across the Palearctic in moorland and steppe habitat when breeding, often near wooded areas. They will spend the winter perched in dense forests, feeding almost exclusively on the needles of conifers. The black grouse is one of 2 species of grouse in the genus '' Lyrurus'', the other being the lesser-known Caucasian grouse. The female is greyish-brown and has a cackling or warbling call. She takes all responsibility for nesting and caring for the chicks, as typical with most galliforms. The black grouse's genome was sequenced in 2014. Taxonomy and naming The black grouse was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae'' under the binomial name ''Tetrao tetrix''. Both ''Tetrao'' and ''tetrix'' come from Ancie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pechora-Ilych Nature Reserve
Pechora-Ilych Nature Reserve (russian: Печоро-Илычский заповедник, ''Pechoro-Ilychsky zapovednik'') is a Russian 'zapovednik' (strict nature reserve) in the Komi Republic, Russia. It currently occupies 7,213 square kilometers and forms the core of the World Heritage Site Virgin Komi Forests. Topography The nature reserve is located in the south-eastern corner of the Komi Republic (Troitsko-Pechorsky District), on the western slopes of the Ural Mountains and the adjacent foothills and lowlands. The area is drained by the upper course of the Pechora River and its tributary the Ilych, from whose names the name of the reserve is derived. History The idea of the creation of a nature reserve in the upper Pechora, as a sable ''zakaznik'' (sanctuary), was proposed in 1915 by S. T. Nat, the Chief Forester of Vologda Guberniya, in his article in ''Lesnoy Zhurnal'' (''Forest Journal''). The nature reserve was created on May 4, 1930, originally occupying 11,3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curonian Spit
The Curonian (Courish) Spit ( lt, Kuršių nerija; russian: Ку́ршская коса́ (Kurshskaya kosa); german: Kurische Nehrung, ; lv, Kuršu kāpas) is a long, thin, curved sand-dune spit that separates the Curonian Lagoon from the Baltic Sea coast. Its southern portion lies within Kaliningrad Oblast, Russia, and its northern within southwestern Klaipėda County, Lithuania. It is a UNESCO World Heritage Site shared by Lithuania and Russia. Geography The Curonian Spit stretches from the Sambia Peninsula on the south to its northern tip next to a narrow strait, across which is the port city of Klaipėda on the mainland of Lithuania. The northern long stretch of the Curonian Spit peninsula belongs to Klaipėda County, Lithuania, while the rest is part of the Kaliningrad Oblast, Russia. The width of the spit varies from a minimum of in Russia (near the village of Lesnoy) to a maximum of in Lithuania (just north of Nida). Geologic history The Curonian Spit was formed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyology
Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 33,400 species of fish had been described as of October 2016, with approximately 250 new species described each year. Etymology The word is derived from the Greek words ἰχθύς, ''ikhthus'', meaning "fish"; and λογία, ''logia'', meaning "to study". History The study of fish dates from the Upper Paleolithic Revolution (with the advent of "high culture"). The science of ichthyology was developed in several interconnecting epochs, each with various significant advancements. The study of fish receives its origins from humans' desire to feed, clothe, and equip themselves with useful implements. According to Michael Barton, a prominent ichthyologist and professor at Centre College, "the earliest ichthyologists were ''hunters and gatherers'' who had learned how to obtain the most use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Academy Of Sciences
The Russian Academy of Sciences (RAS; russian: Росси́йская акаде́мия нау́к (РАН) ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such as libraries, publishing units, and hospitals. Peter the Great established the Academy (then the St. Petersburg Academy of Sciences) in 1724 with guidance from Gottfried Leibniz. From its establishment, the Academy benefitted from a slate of foreign scholars as professors; the Academy then gained its first clear set of goals from the 1747 Charter. The Academy functioned as a university and research center throughout the mid-18th century until the university was dissolved, leaving research as the main pillar of the institution. The rest of the 18th century continuing on through the 19th century consisted of many published academic works from Academy scholars and a few Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The Red Star
The Order of the Red Star (russian: Орден Красной Звезды, Orden Krasnoy Zvezdy) was a military decoration of the Soviet Union. It was established by decree of the Presidium of the Supreme Soviet of the USSR of 6 April 1930 but its statute was only defined in decree of the Presidium of the Supreme Soviet of the USSR of 5 May 1930. That statute was amended by decrees of the Presidium of the Supreme Soviet of the USSR of 7 May 1936, of 19 June 1943, of 26 February 1946, of 15 October 1947, of 16 December 1947 and by decree No 1803-X of 28 March 1980. Award statute The Order of the Red Star was awarded to soldiers of the Soviet Army, Soviet Navy, Navy, Soviet Border Troops, border and NKVD, internal security forces, employees of the KGB, State Security Committee of the USSR, as well as Non-commissioned officer, NCOs and officers of the bodies of MVD, internal affairs; to units, warships, associations, enterprises, institutions and organizations; as well as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muskrat
The muskrat (''Ondatra zibethicus'') is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over a wide range of climates and habitats. It has important effects on the ecology of wetlands, and is a resource of food and fur for humans. Adult muskrats weigh , with a body length of . They are covered with short, thick fur of medium to dark brown color. Their long tails, covered with scales rather than hair, are their main means of propulsion. Muskrats spend most of their time in the water and can swim under water for 12 to 17 minutes. They live in families, consisting of a male and female pair and their young. To protect themselves from the cold and from predators, they build nests that are often burrowed into the bank with an underwater entrance. Muskrats feed mostly on cattail and other aquatic vegetation but also eat small animals. ''Ondatra zibethicus'' is the only s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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