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Duroia Maguirei
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants subjec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maria Sybilla Merian
Maria Sibylla Merian (2 April 164713 January 1717) was a German naturalist and scientific illustrator. She was one of the earliest European naturalists to observe insects directly. Merian was a descendant of the Frankfurt branch of the Swiss Merian family. Merian received her artistic training from her stepfather, Jacob Marrel, a student of the still life painter Georg Flegel. Merian published her first book of natural illustrations in 1675. She had started to collect insects as an adolescent. At age 13, she raised silkworms. In 1679, Merian published the first volume of a two-volume series on caterpillars; the second volume followed in 1683. Each volume contained 50 plates that she engraved and etched. Merian documented evidence on the process of metamorphosis and the plant hosts of 186 European insect species. Along with the illustrations Merian included descriptions of their life cycles. In 1699, Merian travelled to Dutch Guiana to study and record the tropical insects nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allelopathy
Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the germination, growth, survival, and reproduction of other organisms. These biochemicals are known as allelochemicals and can have beneficial (positive allelopathy) or detrimental (negative allelopathy) effects on the target organisms and the community. Allelopathy is often used narrowly to describe chemically-mediated competition between plants; however, it is sometimes defined more broadly as chemically-mediated competition between any type of organisms. Allelochemicals are a subset of secondary metabolites, which are not directly required for metabolism (i.e. growth, development and reproduction) of the allelopathic organism. Allelopathic interactions are an important factor in determining species distribution and abundance within plant communities, and are also thought to be important in the success of many invasive plants. For specific examples, see black walnut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duroia Fusifera
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duroia Duckei
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Carpenter Standley
Paul Carpenter Standley (March 21, 1884 – June 2, 1963) was an American botanist known for his work on neotropical plants. __TOC__ Standley was born on March 21, 1884 in Avalon, Missouri. He attended Drury College in Springfield, Missouri and New Mexico State College, where he received a bachelor's degree in 1907, and received a master's degree from New Mexico State College in 1908. He remained at New Mexico State College as an assistant from 1908–1909. He was the Assistant Curator of the Division of Plants at the United States National Museum from 1909 to 1922. In spring, 1928, he took a position at the Field Museum of Natural History in Chicago, where worked until 1950. While at the Field Museum he did fieldwork in Guatemala between 1938 and 1941. After his retirement in 1950, he moved to the '' Escuela Agricola Panamericana,'' where he worked in the library and herbarium and did field work until 1956, when he stopped doing botanical work. In 1957 he moved to Tegucigalp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duroia Costaricensis
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duroia Bolivarensis
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornelis Eliza Bertus Bremekamp
Cornelis Eliza Bertus Bremekamp (7 February 1888, in Dordrecht – 21 December 1984) was a Dutch botanist. He received his education at the University of Utrecht, and performed as a botanical researcher in Indonesia and South Africa. In South Africa he collaborated with German botanist Herold Georg Wilhelm Johannes Schweickerdt (1903–1977). From 1924 to 1931 he was a professor at Transvaal University in Pretoria, where he conducted studies of the genus ''Pavetta''. During this time period he collected plants from northern Transvaal, Rhodesia, and Mozambique. A portion of his career was spent at the herbarium in Utrecht, where he specialized in studies of Rubiaceae and Acanthaceae. Eponymy '' Bremekampia'' (Acanthaceae) '' Batopedina'' (Rubiaceae) '' Toddaliopsis bremekampii'' (Rutaceae The Rutaceae is a family, commonly known as the rue [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duroia Aquatica
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julian Alfred Steyermark
Julian Alfred Steyermark (January 27, 1909 – October 15, 1988) was a Venezuelan American botanist. His focus was on New World vegetation, and he specialized in the family Rubiaceae. Life and work Julian Alfred Steyermark was born in St. Louis, Missouri as the only child of the businessman Leo L. Steyermark and Mamie I. Steyermark (''née'' Isaacs). He studied at the Henry Shaw School of Botany at Washington University in St. Louis, where he completed his Ph.D. in 1933. His distinguished career included the Field Museum of Chicago, the ''Instituto Botánico'' of Caracas, and he was with the Missouri Botanical Garden in St. Louis from 1984 until his death. Steyermark's major works were his ''Flora of the Venezuelan Guayana'', ''Flora of Missouri'', and his ''Flora of Guatemala''. During his life, Steyermark collected over 130,000 plants in twenty-six countries, which earned him an entry in the ''Guinness Book of World Records''. He made the initial descriptions of 2,392 taxa of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duroia Amapana
''Duroia'' is a genus of flowering plants in the family Rubiaceae. The genus is found from Costa Rica to tropical South America. Ecology A number of ''Duroia'' species, and possibly all, are capable of biochemical interactions inhibiting the growth of neighbouring plants. Analysis of root extracts from ''Duroia hirsuta'' have yielded a strong plant growth inhibitor plumericin, a tetracyclic iridoid lactone. This process, common amongst plants, is termed allelopathy. In the case of ''Duroia hirsuta'', the chemical inhibitor is aided by the leafcutter ant ''Myrmelachista schumanni'' resident on and in the tree, and playing an active role in suppressing and destroying plant growth in the vicinity of their host by injecting and spraying formic acid. The area around the understory species ''Duroia hirsuta'' is often devoid of all other plant types, leading to the local name 'Devil's garden'. The cost to the host plant for this protection is considerable, since the resident ants su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devil's Garden
In myrmecology and forest ecology, a devil's garden (Kichwa: ''Supay chakra''Frederickson, M. E., & Gordon, D. (2007). The devil to pay: the cost of mutualism with ''Myrmelachista schumanni'' ants in 'devil's gardens' is increased herbivory on ''Duroia hirsuta'' trees. ''Proc. R. Soc. B''. 274 (1613): 1117-23.David P. Edwards, Megan E. Frederickson, Glenn H. Shepard, and Douglas W. Yu (2009): A Plant Needs Ants like a Dog Needs Fleas: Myrmelachista schumanni Ants Gall Many Tree Species to Create Housing.'' The American Naturalist 174, no. 5: pp. 734-740.) is a large stand of trees in the Amazon rainforest consisting of at most three tree species and the ant ''Myrmelachista schumanni''. Devil's gardens can reach up to sizes of 600 trees and are inhabited by a single ant colony, containing up to 3 million workers and 15,000 queens.Frederickson, M. E., Greene, M. J., & Gordon, D. (2005). Ecology: 'Devil's gardens' bedevilled by ants. ''Nature'' 437: 495-6. In a 2002 to 2004 ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
