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Charles S. Elton
Charles Sutherland Elton (29 March 19001 May 1991) was an English zoologist and animal ecologist. He is associated with the development of population and community ecology, including studies of invasive organisms. Personal life Charles Sutherland Elton was born in Manchester, a son of the literary scholar Oliver Elton and the children's writer Letitia Maynard Elton (''née'' MacColl). He had an older brother, Geoffrey Elton, who died at 33, and to whom Charles Elton in many of his writings attributes his interest in scientific natural history. Charles Elton married the English poet Edith Joy Scovell in 1937, a first five-year marriage to Rose Montague having ended in amicable divorce. Charles and Joy had two children, Catherine Ingrid Buffonge MBE and Robert Elton. Professional life Charles Elton was educated at Liverpool College and Oxford University, from which he graduated in zoology in 1922, with a first in his field research project and a third in the exams, and where he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Elton
Charles Elton may refer to: * Charles Isaac Elton (1839–1900), English lawyer, politician, writer and antiquarian * Charles Sutherland Elton (1900–1991), English biologist * Charles Elton (police), Chief of Police in Los Angeles, California (1900–1904) * Charles Abraham Elton (1778–1853), English officer in the British Army and author * Sir Charles Abraham Grierson Elton, 11th Baronet (born 1953) of the Elton baronets * Charles Elton (born 1993), New Zealand rugby union player for Otago (National Provincial Championship) {{DEFAULTSORT:Elton, Charles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Ecology
Population ecology is a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment (biophysical), environment, such as birth rate, birth and death rates, and by immigration and emigration. The discipline is important in conservation biology, especially in the development of population viability analysis which makes it possible to predict the long-term probability of a species persisting in a given patch of habitat. Although population ecology is a subfield of biology, it provides interesting problems for mathematicians and statistics, statisticians who work in population dynamics. History In the 1940s, ecology was divided into autecology—the study of individual species in relation to the environment—and Community ecology, synecology—the study of groups of species in relation to the environment. The term autecology (from Ancient Greek language, Ancient Greek: :wikt:αὐτο, αὐτο, ''aúto'', "self"; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fur Trade
The fur trade is a worldwide industry dealing in the acquisition and sale of animal fur. Since the establishment of a world fur market in the early modern period, furs of boreal ecosystem, boreal, polar and cold temperate mammalian animals have been the most valued. Historically the trade stimulated the exploration and colonization of Siberia, northern North America, and the South Shetland Islands, South Shetland and South Sandwich Islands. Today the importance of the fur trade has diminished; it is based on pelts produced at fur farms and regulated fur-bearer trapping, but has become controversial. Animal rights organizations oppose the fur trade, citing that animals are brutally killed and sometimes skinned alive. Fur has been replaced in some clothing by synthetic fiber, synthetic imitations, for example, as in ruffs on hoods of parkas. Continental fur trade Russian fur trade Before the European colonization of the Americas, Russia was a major supplier of fur pelts to W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Kilda, Scotland
St Kilda () is a remote archipelago situated west-northwest of North Uist in the North Atlantic Ocean. It contains the westernmost islands of the Outer Hebrides of Scotland. The largest island is Hirta, whose sea cliffs are the highest in the United Kingdom; three other islands (Dùn, St Kilda, Dùn, Soay, St Kilda, Soay and Boreray, St Kilda, Boreray) were also used for grazing and seabird hunting. The islands are administratively a part of the Comhairle nan Eilean Siar local authority area. The origin of the name ''St Kilda'' is a matter of conjecture. The islands' human heritage includes unique architectural features from the historic and prehistoric periods, although the earliest written records of island life date from the Scotland in the Late Middle Ages, Late Middle Ages. The medieval village on Hirta was rebuilt in the 19th century, but illnesses brought by increased external contacts through tourism, and the upheaval of the First World War, contributed to the island's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vertebrates
Vertebrates () are animals with a vertebral column (backbone or spine), and a cranium, or skull. The vertebral column surrounds and protects the spinal cord, while the cranium protects the brain. The vertebrates make up the subphylum Vertebrata with some 65,000 species, by far the largest ranked grouping in the phylum Chordata. The vertebrates include mammals, birds, amphibians, and various classes of fish and reptiles. The fish include the jawless Agnatha, and the jawed Gnathostomata. The jawed fish include both the Chondrichthyes, cartilaginous fish and the Osteichthyes, bony fish. Bony fish include the Sarcopterygii, lobe-finned fish, which gave rise to the tetrapods, the animals with four limbs. Despite their success, vertebrates still only make up less than five percent of all described animal species. The first vertebrates appeared in the Cambrian explosion some 518 million years ago. Jawed vertebrates evolved in the Ordovician, followed by bony fishes in the Devonian. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic
The Arctic (; . ) is the polar regions of Earth, polar region of Earth that surrounds the North Pole, lying within the Arctic Circle. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts of northern Norway (Nordland, Troms, Finnmark, Svalbard and Jan Mayen), northernmost Sweden (Västerbotten, Norrbotten and Lapland (Sweden), Lappland), northern Finland (North Ostrobothnia, Kainuu and Lapland (Finland), Lappi), Russia (Murmansk Oblast, Murmansk, Siberia, Nenets Autonomous Okrug, Nenets Okrug, Novaya Zemlya), the United States (Alaska), Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), and northern Iceland (Grímsey and Kolbeinsey), along with the Arctic Ocean and adjacent seas. Land within the Arctic region has seasonally varying cryosphere, snow and ice cover, with predominantly treeless permafrost under the tundra. Arctic seas contain seasonal sea ice in many places. The Arctic region is a unique area among Earth's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1921 Oxford University Spitsbergen Expedition
The 1921 Oxford University Spitsbergen expedition took place over the period June–August 1921 and was led by F.C.R. Jourdain (1865–1940). Science The initial ornithological focus "was rapidly enlarged to embrace a range of interest, so diverse that the party had to be organized in two independent sections". Although over 30 articles arising from the expedition had been published by 1924 and a compilation volume bringing together those papers had also been published, a full and detailed account of the expedition was not made available until almost 60 years later by which time the data and material from the expedition had led to additional publications. Expedition members Apart from the leader, Jourdain, other members included: *Charles Sutherland Elton (1900–1991), aged 21 at the time of the expedition, later becoming "a towering figure in the history of animal ecology" and elected a Fellow of the Royal Society. * George Binney (1900–1972), aged 21 at the time of the exped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julian Huxley
Sir Julian Sorell Huxley (22 June 1887 – 14 February 1975) was an English evolutionary biologist, eugenicist and Internationalism (politics), internationalist. He was a proponent of natural selection, and a leading figure in the mid-twentieth-century Modern synthesis (20th century), modern synthesis. He was secretary of the Zoological Society of London (1935–1942), the first director of UNESCO, a founding member of the World Wildlife Fund, the president of the British Eugenics Society (1959–1962), and the first president of the British Humanist Association. Huxley was well known for his presentation of science in books and articles, and on radio and television. He directed an Oscar-winning wildlife film. He was awarded UNESCO's Kalinga Prize for the popularisation of science in 1953, the Darwin Medal of the Royal Society in 1956, and the Darwin–Wallace Medal of the Linnaean Society in 1958. He was also British honours system, knighted in the 1958 New Year Honours, a hun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as Biophysical environment, environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and Luminous intensity, light intensity. Biotic index, Biotic factors include the availability of food and the presence or absence of Predation, predators. Every species has particular habitat requirements, habitat generalist species are able to thrive in a wide array of environmental conditions while habitat specialist species require a very limited set of factors to survive. The habitat of a species is not necessarily found in a ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural History
Natural history is a domain of inquiry involving organisms, including animals, fungi, and plants, in their natural environment, leaning more towards observational than experimental methods of study. A person who studies natural history is called a naturalist or natural historian. Natural history encompasses scientific research but is not limited to it. It involves the systematic study of any category of natural objects or organisms, so while it dates from studies in the ancient Greco-Roman world and the mediaeval Arabic world, through to European Renaissance naturalists working in near isolation, today's natural history is a cross-discipline umbrella of many specialty sciences; e.g., geobiology has a strong multidisciplinary nature. Definitions Before 1900 The meaning of the English term "natural history" (a calque of the Latin ''historia naturalis'') has narrowed progressively with time, while, by contrast, the meaning of the related term "nature" has widened (see also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liverpool College
Liverpool College is a coeducational day and boarding school in Mossley Hill, Liverpool, England. It was one of the thirteen founding members of the Headmasters' and Headmistresses' Conference, Headmasters' Conference. History Liverpool College was the first of many Public school (United Kingdom), public schools founded in the Victorian Era. The foundation stone of the original building was laid on 22 October 1840 by Edward Smith-Stanley, 14th Earl of Derby K.G. (then styled the Rt. Hon. Lord Stanley MP), the first patron of the college. A group of Christian Liverpool citizens, many of whose names are now famous in the annals of the city, then began the building of a school where education might be combined with 'sound religious knowledge'. The original building in Shaw Street (now apartments) is in the so-called Tudor-Gothic style. It was designed by Mr. Harvey Lonsdale Elmes, and was erected at a cost of £35,000. The college was opened on 6 January 1843 by the Right Hon. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The University Of Chicago Press
The University of Chicago Press is the university press of the University of Chicago, a private research university in Chicago, Illinois. It is the largest and one of the oldest university presses in the United States. It publishes a wide range of academic titles, including ''The Chicago Manual of Style'', numerous academic journals, and advanced monographs in the academic fields. The press is located just south of the Midway Plaisance on the University of Chicago campus. One of its quasi-independent projects is the BiblioVault, a digital repository for scholarly books. History The University of Chicago Press was founded in 1890, making it one of the oldest continuously operating university presses in the United States. Its first published book was Robert F. Harper's ''Assyrian and Babylonian Letters Belonging to the Kouyunjik Collections of the British Museum''. The book sold five copies during its first two years, but by 1900, the University of Chicago Press had published 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
