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Phenology
Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonality, seasonal and interannual variations in climate, as well as environmental factor, habitat factors (such as elevation). Examples include the date of emergence of leaves and flowers, the first flight of butterflies, the first appearance of bird migration, migratory birds, the date of leaf colouring and fall in deciduous trees, the dates of egg-laying of birds and amphibia, or the timing of the developmental cycles of temperate-zone honey bee colonies. In the scientific literature on ecology, the term is used more generally to indicate the time frame for any seasonal biological phenomena, including the dates of last appearance (e.g., the seasonal phenology of a species may be from April through September). Because many such phenomena are very sensitive to small variations in climate, especially to temperature, phenological records can be a useful proxy (climate), proxy for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles François Antoine Morren
Charles François Antoine Morren (3 March 1807 in Ghent – 17 December 1858 in Liège), was a Belgian botanist and horticulturist, and Director of the ''Jardin botanique de l’Université de Liège''. Morren taught physics at Ghent University between 1831 and 1835. At the same time he studied medicine and graduated in 1835. He became Professor extraordinarius of botany at the University of Liège from 1835 to 1837, and full professor from 1837 to 1854. Morren discovered that the vanilla flower is pollinated by the social and stingless Melipone bee, which occurs only in Mexico, obviating natural pollination in other countries. Hernán Cortés brought vanilla to Europe, but for more than 300 years the pollination mechanism remained a mystery. Morren was the first to discover a method for artificial pollination, which made it possible to cultivate vanilla in the French colonies. Pollination of vanilla pods is required to make the plants produce the fruit from which the vanil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historical Climatology
Historical climatology is the study of historical changes in climate and their effect on civilization from the emergence of homininis to the present day. This differs from paleoclimatology which encompasses climate change over the entire history of Earth. These historical impacts of climate change can improve human life and cause societies to flourish, or can be instrumental in civilization's societal collapse. The study seeks to define periods in human history where temperature or precipitation varied from what is observed in the present day. The primary sources include written records such as sagas, chronicles, maps and local history literature as well as pictorial representations such as paintings, drawings and even rock art. The archaeological record is equally important in establishing evidence of settlement, water and land usage. Techniques In literate societies, historians may find written evidence of climatic variations over hundreds or thousands of years, such as phenolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and satellite tracking to trace migrants. Threats to migratory birds have grown with habitat destruction, especially of stopover and wintering sites, as wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Life Cycle
In biology, a biological life cycle (or just life cycle or lifecycle when the biological context is clear) is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, or sexual reproduction. In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.Dixon, P.S. 1973. ''Biology of the Rhodophyta.'' Oliver & Boyd. Life cycles that include sexual reproduction involve alternating haploid (''n'') and diploid (2''n'') stages, i.e., a change of pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belgium
Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to the southwest, and the North Sea to the northwest. It covers an area of and has a population of more than 11.5 million, making it the 22nd most densely populated country in the world and the 6th most densely populated country in Europe, with a density of . Belgium is part of an area known as the Low Countries, historically a somewhat larger region than the Benelux group of states, as it also included parts of northern France. The capital and largest city is Brussels; other major cities are Antwerp, Ghent, Charleroi, Liège, Bruges, Namur, and Leuven. Belgium is a sovereign state and a federal constitutional monarchy with a parliamentary system. Its institutional organization is complex and is structured on both regional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolphe Quetelet
Lambert Adolphe Jacques Quetelet FRSF or FRSE (; 22 February 1796 – 17 February 1874) was a Belgian astronomer, mathematician, statistician and sociologist who founded and directed the Brussels Observatory and was influential in introducing statistical methods to the social sciences. His name is sometimes spelled with an accent as ''Quételet''. He also founded the science of anthropometry and developed the body mass index (BMI) scale, originally called the Quetelet Index. His work on measuring human characteristic to determine the ideal ''l'homme moyen'' ("the average man"), played a key role in the origins of eugenics. Biography Adolphe was born in Ghent (which, at the time was a part of the new French Republic). He was the son of François-Augustin-Jacques-Henri Quetelet, a Frenchman and Anne Françoise Vandervelde, a Flemish woman. His father was born at Ham, Picardy, and being of a somewhat adventurous spirit, he crossed the English Channel and became both a Brit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Observatory Of Belgium
The Royal Observatory of Belgium (french: link=no, Observatoire Royal de Belgique, nl, Koninklijke Sterrenwacht van België), has been situated in the Uccle municipality of Brussels (Belgium) since 1890. It was first established in Saint-Josse-ten-Noode in 1826 by William I under the impulse of Adolphe Quetelet. It was home to a diameter aperture Zeiss reflector in the first half of the 20th century, one of the largest telescopes in the world at the time. It owns a variety of other astronomical instruments, such as astrographs, as well as a range of seismograph equipment (for detecting earthquakes). Its main activities are: * Reference systems and geodynamics; * Astrometry and dynamics of celestial bodies; * Astrophysics; * Solar physics. The asteroid 1276 Ucclia is named in honour of the city and the observatory and 16908 Groeselenberg is named for the hill the observatory is located on. History 19th century Adolphe Quetelet first petitioned the government of the Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Joseph Kreutzer
Carl may refer to: *Carl, Georgia, city in USA *Carl, West Virginia, an unincorporated community * Carl (name), includes info about the name, variations of the name, and a list of people with the name *Carl², a TV series * "Carl", an episode of television series ''Aqua Teen Hunger Force'' * An informal nickname for a student or alum of Carleton College CARL may refer to: *Canadian Association of Research Libraries *Colorado Alliance of Research Libraries See also * Carle (other) * Charles *Carle, a surname *Karl (other) *Karle (other) Karle may refer to: Places * Karle (Svitavy District), a municipality and village in the Czech Republic * Karli, India, a town in Maharashtra, India ** Karla Caves, a complex of Buddhist cave shrines * Karle, Belgaum, a settlement in Belgaum ... {{disambig ja:カール zh:卡尔 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Zoologist
''The Zoologist'' was a monthly natural history magazine established in 1843 by Edward Newman and published in London. Newman acted as editor-in-chief until his death in 1876, when he was succeeded, first by James Edmund Harting (1876–1896), and later by William Lucas Distant (1897–1916). Originating from an enlargement of '' The Entomologist'', ''The Zoologist'' contained long articles, short notes, comments on current events, and book reviews covering the entire Animal Kingdom throughout the world, until ''The Entomologist'' was separated again in 1864. Initially, half of the space was devoted to birds, rising to two-thirds later. In 1916 ''The Zoologist'' was amalgamated with '' British Birds'' (founded 1908).. See alsotitle page of vol. 10, issue 8(in BHL) with the text "With which is incorporated 'The Zoologist'". Founders At the death of Frederick Bond, in 1889, James Edmund Harting, who was then the editor of ''The Zoologist'', wrote an extensive memorial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Academy Of Science, Letters And Fine Arts Of Belgium
The Royal Academy of Science, Letters and Fine Arts of Belgium (french: Académie royale des sciences, des lettres et des beaux-arts de Belgique, sometimes referred to as ') is the independent learned society of science and arts of the French Community of Belgium. One of Belgium's numerous academies, it is the French-speaking counterpart of the Royal Flemish Academy of Belgium for Science and the Arts. In 2001 both academies founded a joint association for the purpose of promoting science and arts on an international level: The Royal Academies for Science and the Arts of Belgium (RASAB). All three institutions are located in the same building, the Academy Palace in Brussels. History A preexisting literary society was founded in 1769 under the auspices of Karl von Cobenzl, plenipotentiary of the Austrian Netherlands under Empress Maria Theresa (hence its nickname ""). In 1772 Cobenzl's successor Georg Adam, Prince of Starhemberg continued the efforts of his predecessor by expandin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Lucas Distant
William Lucas Distant (12 November 1845 Rotherhithe – 4 February 1922 Wanstead) was an English entomologist. Biography Early years Distant was born in Rotherhithe, the son of whaling captain Alexander Distantspecies:B.R. Subba Rao, Rao, B.R. Subba (1998) ''History of Entomology in India''. Institution of Agricultural Technologists, Bangalore. and his wife, Sarah Ann Distant (née Berry). Following his father's death in 1867, a trip to the Malay Peninsula to visit his older brother, also named Alexander and a ship's captain, aroused his interest in natural history, and resulted in the publication of ''Rhopalocera Malayana'' (1882–1886), a description of the butterflies of the Malay Peninsula. (He considered 5 August 1867 as the most eventful day in his life). Career Much of Distant's early life was spent working in a London tannery, and while employed there he made two long visits to the South African Republic, Transvaal. The first resulted in the publication of ''A Natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
