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Ecological Succession
Ecological succession is the process of change in the species that make up an ecological community over time. The process of succession occurs either after the initial colonization of a newly created habitat, or after a disturbance substantially alters a pre-existing habitat. Succession that begins in new habitats, uninfluenced by pre-existing communities, is called primary succession, whereas succession that follows disruption of a pre-existing community is called secondary succession. Primary succession may happen after a lava flow or the emergence of a new island from the ocean. Surtsey, a volcanic island off the southern coast of Iceland, is an important example of a place where primary succession has been observed. On the other hand, secondary succession happens after disturbance of a community, such as from a fire, severe windthrow, or logging. Succession was among the first theories advanced in ecology. Ecological succession was first documented in the Indiana Du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreal Pine Forest After Fire
Boreal may refer to: Climatology and geography *Boreal (age), the first climatic phase of the Blytt-Sernander sequence of northern Europe, during the Holocene epoch *Boreal climate, a climate characterized by long winters and short, cool to mild summers *Boreal ecosystem, an ecosystem with a subarctic climate in the Northern Hemisphere *Boreal forest, a biome characterized by coniferous forests * Boreal Sea, a Mesozoic-era seaway Companies and organizations * Boreale, a Quebec microbrewery *Boreal Mountain Resort, a ski resort in the Lake Tahoe area of California * Boreal Norge, a Norwegian public transport operator *Collège Boréal, a francophone college in Ontario, Canada Other uses * Boreal (horse), a racehorse * Carlo Boreal, a fictional character in Philip Pullman's ''His Dark Materials'' trilogy *''Le Boreal'', a French cruise ship * Borealism, the exoticisation of the northern regions of the Earth and their cultures See also *Boreal forest of Canada, a region covering mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges-Louis Leclerc, Comte De Buffon
Georges-Louis Leclerc, Comte de Buffon (; 7 September 1707 – 16 April 1788) was a French naturalist, mathematician, cosmologist, and encyclopédiste. His works influenced the next two generations of naturalists, including two prominent French scientists Jean-Baptiste Lamarck and Georges Cuvier. Buffon published thirty-six quarto volumes of his ''Histoire Naturelle'' during his lifetime, with additional volumes based on his notes and further research being published in the two decades following his death. Ernst Mayr wrote that "Truly, Buffon was the father of all thought in natural history in the second half of the 18th century".Mayr, Ernst 1981. ''The Growth of Biological Thought''. Cambridge: Harvard. p 330 Credited with being one of the first naturalists to recognize ecological succession, he was later forced by the theology committee at the University of Paris to recant his theories about geological history and animal evolution because they contradicted the Biblical na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pine
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accepts 187 species names of pines as current, together with more synonyms. The American Conifer Society (ACS) and the Royal Horticultural Society accept 121 species. Pines are commonly found in the Northern Hemisphere. ''Pine'' may also refer to the lumber derived from pine trees; it is one of the more extensively used types of lumber. The pine family is the largest conifer family and there are currently 818 named cultivars (or trinomials) recognized by the ACS. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reaching tall. The smallest are Siberian dwarf pine and Potosi pinyon, and the tallest is an tall ponderosa pine located in southern Oregon's Rogue Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birch
A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech-oak family Fagaceae. The genus ''Betula'' contains 30 to 60 known taxa of which 11 are on the IUCN 2011 Red List of Threatened Species. They are a typically rather short-lived pioneer species widespread in the Northern Hemisphere, particularly in northern areas of temperate climates and in boreal climates. Description Birch species are generally small to medium-sized trees or shrubs, mostly of northern temperate and boreal climates. The simple leaves are alternate, singly or doubly serrate, feather-veined, petiolate and stipulate. They often appear in pairs, but these pairs are really borne on spur-like, two-leaved, lateral branchlets. The fruit is a small samara, although the wings may be obscure in some species. They differ from the alders (''Alnus'', another genus in the family) in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heath
A heath () is a shrubland habitat found mainly on free-draining infertile, acidic soils and characterised by open, low-growing woody vegetation. Moorland is generally related to high-ground heaths with—especially in Great Britain—a cooler and damper climate. Heaths are widespread worldwide but are fast disappearing and considered a rare habitat in Europe. They form extensive and highly diverse communities across Australia in humid and sub-humid areas where fire regimes with recurring burning are required for the maintenance of the heathlands.Specht, R.L. 'Heathlands' in 'Australian Vegetation' R.H. Groves ed. Cambridge University Press 1988 Even more diverse though less widespread heath communities occur in Southern Africa. Extensive heath communities can also be found in the Texas chaparral, New Caledonia, central Chile, and along the shores of the Mediterranean Sea. In addition to these extensive heath areas, the vegetation type is also found in scattered locations acro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grassland
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area. Definitions Included among the variety of definitions for grasslands are: * "...any plant community, including harvested forages, in which grasses and/or legumes make up the dominant vegetation." * "...terrestrial ecosystems dominated by herbaceous and shrub vegetation, and maintained by fire, grazing, drought and/or freezing temperatures." (Pilot Assessment of Global Ecosystems, 2000) * "A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blekinge
Blekinge (, old da, Bleking) is one of the traditional Swedish provinces (), situated in the southern coast of the geographic region of Götaland, in southern Sweden. It borders Småland, Scania and the Baltic Sea. It is the country's second-smallest province by area (only Öland is smaller), and the smallest province located on the mainland. The name "Blekinge" comes from the dialectal adjective , which corresponds to the nautical term for "dead calm". Administration The historical provinces of Sweden serve no administrative function. However, Blekinge is the only province, besides Gotland, which covers exactly the same area as the administrative county, which is Blekinge County. Blekinge was granted its current arms in 1660 at the time of the funeral of King Charles X Gustav of Sweden (1622–1660) based on a seal from the 15th century. Symbolically the three crowns from the Coat of arms of Sweden had been placed on the trunk of the tree to mark the change in status of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ragnar Hult
Ragnar Hult (4 March 1857 – 25 September 1899) was a Finnish botanist and plant geographer. He was a forerunner in developing a methodology for vegetation survey. He emphasized the physiognomy of vegetation and paid less attention to its ecology. His ideas were much-followed in Sweden, making him the real father of the "Uppsala school" in plant sociology. Ragnar Hult was the first (1881) to publish a comprehensive study of ecological succession as it is taking place in a given region. He was the first to recognize that a relatively large number of pioneer plant communities give way to a comparatively small number of relatively stable communities. His study on the forests of Blekinge noted that grassland becomes heath before the heath develops into forest. Birch dominated the early stages of forest development, then pine (on dry soil) and spruce (on wet soil). If the birch is replaced by oak it eventually develops to beechwood. Swamps proceed from moss to sedges to moor vegetati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Danube
The Danube ( ; ) is a river that was once a long-standing frontier of the Roman Empire and today connects 10 European countries, running through their territories or being a border. Originating in Germany, the Danube flows southeast for , passing through or bordering Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, and Ukraine before draining into the Black Sea. Its drainage basin extends into nine more countries. The largest cities on the river are Vienna, Budapest, Belgrade and Bratislava, all of which are the capitals of their respective countries; the Danube passes through four capital cities, more than any other river in the world. Five more capital cities lie in the Danube's basin: Bucharest, Sofia, Zagreb, Ljubljana and Sarajevo. The fourth-largest city in its basin is Munich, the capital of Bavaria, standing on the Isar River. The Danube is the second-longest river in Europe, after the Volga in Russia. It flows through much of Central and Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anton Kerner Von Marilaun
Anton Kerner Ritter von Marilaun, or Anton Joseph Kerner, (12 November 1831 – 21 June 1898) was an Austrian botanist and professor at the University of Vienna. Career Kerner was born in Mautern, Lower Austria, and studied medicine in Vienna followed by an education in natural history, for which he carried out phytosociologic studies in Central Europe. In 1858 Kerner was appointed professor of botany at the Polytechnic Institute at Buda, and then in 1860 was appointed professor of natural history at the University of Innsbruck. He resigned the latter position in 1878 to become professor of systematic botany at the University of Vienna, and also curator of the botanical garden there. Kerner was particularly active in the fields of phytogeography and phytosociology. He died in 1898 in Vienna at the age of 67. He said "… and years pass by until a second generation f plantscan develop stronger and richer on the prepared soil; but restless works the plant kingdom and construct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry David Thoreau
Henry David Thoreau (July 12, 1817May 6, 1862) was an American naturalist, essayist, poet, and philosopher. A leading Transcendentalism, transcendentalist, he is best known for his book ''Walden'', a reflection upon simple living in natural surroundings, and his essay "Civil Disobedience (Thoreau), Civil Disobedience" (originally published as "Resistance to Civil Government"), an argument for disobedience to an unjust state. Thoreau's books, articles, essays, journals, and poetry amount to more than 20 volumes. Among his lasting contributions are his nature writing, writings on natural history and philosophy, in which he anticipated the methods and findings of ecology and environmental history, two sources of modern-day environmentalism. His literary language, literary style interweaves close observation of nature, personal experience, pointed rhetoric, symbolic meanings, and historical lore, while displaying a poetic sensibility, philosophical Asceticism, austerity, and attent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolphe Dureau De La Malle
Adolphe Jules César Auguste Dureau de la Malle (3 March 1777 – 17 May 1857) was a Saint Dominican geographer, naturalist, historian and artist. He was the son of the scholar and translator Jean-Baptiste Dureau de la Malle. Dureau de la Malle published a number of works on the economy and topography of the classic countries, i.e. Italy and Carthage at the time of the Roman Empire: *''On the population in ancient Italy'' (De la Population de l'Italie ancienne) (1825) *''On agriculture, administration and units of measurement of the Romans'' (De l'Agriculture, de l'Administration, des Poids et Mesures des Romains) (1827–1828) *''On the topography of Carthage'' (De la Topographie de Carthage) (1835). As a naturalist, he published on the origins of the cereal crops. * ''De l'Origine et de la patrie des Céréales'' (1819 et 1826) and, his most significant work, on vegetation succession. * ''Mémoire sur l'alternance ou sur ce problème: la succession alternative dans la re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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