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Antitropical
Antitropical (alternatives include biantitropical or amphitropical) distribution is a type of disjunct distribution where a species or clade exists at comparable latitudes across the equator but not in the tropics. For example, a species may be found north of the Tropic of Cancer and south of the Tropic of Capricorn, but not in between. With increasing time since dispersal, the disjunct populations may be the same variety, species, or clade. How the life forms distribute themselves to the opposite hemisphere when they can't normally survive in the middle depends on the species; plants may have their seed spread through wind, animal, or other methods and then germinate upon reaching the appropriate climate, while sea life may be able to travel through the tropical regions in a larval state or by going through deep ocean currents with much colder temperatures than on the surface. For the American amphitropical distribution, dispersal has been generally agreed to be more likely th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruppia Megacarpa
''Ruppia megacarpa'' is a submerged herb species in the genus ''Ruppia'' found in shallow brackish waters. It is a common on Australasian coasts, including Australia (NSW; SA; Vic; WA and New Zealand (type locality).Jacobs, S.W.L. and M.A. Brock (1982) A revision of the genus ''Ruppia'' (Potamogetonaceae) in Australia. ''Aquatic Botany'' 14: 325–337 Isolated populations have been currently found in East Asia, including Japan, Korea, and Far East Russia,Ito, Y., T. Ohi-Toma, J. Murata, and Nr. Tanaka (2010) Hybridization and polyploidy of an aquatic plant, ''Ruppia'' (Ruppiaceae), inferred from plastid and nuclear DNA phylogenies. ''American Journal of Botany'' 97: 1156–1167Ito, Y., T. Ohi-Toma, A. V. Skriptsova, M. Sasagawa, Nr. Tanaka, and J. Murata (2014) ''Ruppia megacarpa'' (Ruppiaceae): a new species to the floras of Japan, Korea, and Russia. ''Botanica Pacofica'' 3: 49–52 hence, the species distribution exhibit latitudinally disjunct (antitropical Antitropical (alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rapoport's Rule
Rapoport's rule is an ecogeographical rule that states that latitudinal ranges of plants and animals are generally smaller at lower latitudes than at higher latitudes. Background Stevens (1989) named the rule after Eduardo H. Rapoport, who had earlier provided evidence for the phenomenon for subspecies of mammals (Rapoport 1975, 1982). Stevens used the rule to "explain" greater species diversity in the tropics in the sense that latitudinal gradients in species diversity Species richness, or biodiversity, increases from the poles to the tropics for a wide variety of terrestrial and marine organisms, often referred to as the latitudinal diversity gradient. The latitudinal diversity gradient is one of the most wid ... and the rule have identical exceptional data and so must have the same underlying cause. Narrower ranges in the tropics would facilitate more species to coexist. He later extended the rule to altitudinal gradients, claiming that altitudinal ranges are greatest at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bembidion
''Bembidion'' is the largest genus of beetles in the family Carabidae by number of species.Carl H. Lindroth. ''The Carabidae (Coleoptera) of Fennoscandia and Denmark''. Leiden - Copenhagen: Brill - Scandinavian Science Press, 1985. . P. 129-199. All species are small (less than 7.5 mm) and move very fast. Most of them live close to water. The genus has a biantitropical distribution, meaning they are found in both the Northern and Southern Hemispheres, but not in the tropics.Philip Jackson Darlington. ''Biogeography of the Southern End of the World''. Cambridge: Harvard University Press, 1965. P. 22, 45. In warmer regions it is substituted by closely related ''Tachys'' and other genera. Taxonomy There have been many attempts to divide it into smaller genera, most notably by René Jeannel in 1941 and by G.G. Perrault in 1981, but none of them have been generally accepted. This genus is divided into numerus subgenera, some of which are elevated to full genus rank by various a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solenogyne
''Solenogyne'' is a genus of Australian plants in the tribe Astereae within the family Asteraceae.econd edition">Cassini, Alexandre Henri Gabriel de. 1828. Dictionnaire des Sciences Naturelles [Second edition/nowiki> 56: 174-176in French ; Species * ''Solenogyne bellioides'' Cass. - New South Wales, Queensland * ''Solenogyne dominii'' L.G.Adams - New South Wales, South Australia, Tasmania, Victoria; naturalized in New Zealand * '' Solenogyne gunnii'' (Hook.f.) Cabrera - New South Wales, Tasmania, Victoria; naturalized in New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ... ; formerly included see Lagenophora * '' Solenogyne mikadoi - Lagenophora mikadoi'' References Asteraceae genera Astereae Endemic flora of Australia {{Astereae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed Dispersal
In Spermatophyte plants, seed dispersal is the movement, spread or transport of seeds away from the parent plant. Plants have limited mobility and rely upon a variety of dispersal vectors to transport their seeds, including both abiotic vectors, such as the wind, and living (biotic) vectors such as birds. Seeds can be dispersed away from the parent plant individually or collectively, as well as dispersed in both space and time. The patterns of seed dispersal are determined in large part by the dispersal mechanism and this has important implications for the demographic and genetic structure of plant populations, as well as migration patterns and species interactions. There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals. Some plants are serotinous and only disperse their seeds in response to an environmental stimulus. These modes are typically inferred based on adaptations, such as wings or fleshy fruit. However, this simplified view may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phacelia Crenulata
''Phacelia crenulata'' is a species of flowering plant in the borage family, Boraginaceae. Its common names include notch-leaf scorpion-weed,''Phacelia crenulata''. Integrated Taxonomic Information System (ITIS). notch-leaved phacelia, cleftleaf wildheliotrope, and heliotrope phacelia.''Phacelia crenulata''. Calflora. ''Phacelia crenulata'' has an antitropical distribution, a type of disjunct distribution where a species exists at comparable latitudes on opposite sides of the equator, but not at the tropics. In North America, it is native to the southwestern United States as far east as Colorado and New Mexic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osmorhiza Depauperata
''Osmorhiza depauperata'' is a species of flowering plant in the carrot family known by the common names bluntseed sweetroot and blunt-fruited sweet-cicely. Distribution and habitat The plant is native to much of western and northern North America, as well as parts of South America. It grows in wooded areas. Description ''Osmorhiza depauperata'' is an erect perennial herb up to 80 centimeters tall. The green leaves have blades up to 12 centimeters wide which are divided into toothed or deeply lobed leaflets. The blade is borne on a long petiole. The inflorescence is a compound umbel of many tiny white flowers at the tip of a stemlike peduncle Peduncle may refer to: *Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed *Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body **Peduncle (art .... The club-shaped fruit is ribbed and bristly, measuring 1 to 2 centimeters long. Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetraplodon (plant)
''Tetraplodon'' is a genus of mosses belonging to the family Splachnaceae. The genus has cosmopolitan distribution. Species: *''Tetraplodon angustatus'' *''Tetraplodon blyttii'' *''Tetraplodon bryoides'' *''Tetraplodon caulescens'' *''Tetraplodon fuegianus'' *''Tetraplodon itatiaiae'' *''Tetraplodon mnioides'' *''Tetraplodon pallidus'' *''Tetraplodon paradoxus'' *'' Tetraplodon stenophysatus'' *'' Tetraplodon tomentosus'' *''Tetraplodon urceolatus Tetraplodon may refer to: * Tetraplodon (bivalve), a genus of bivalves in the family Hyriidae * Tetraplodon (plant) ''Tetraplodon'' is a genus of mosses belonging to the family Splachnaceae. The genus has cosmopolitan distribution In bioge ...'' References * * {{Taxonbar, from=Q15850409 Splachnales Moss genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crayfish
Crayfish are freshwater crustaceans belonging to the clade Astacidea, which also contains lobsters. In some locations, they are also known as crawfish, craydids, crawdaddies, crawdads, freshwater lobsters, mountain lobsters, rock lobsters, mudbugs, baybugs or yabbies. Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some species are found in brooks and streams, where fresh water is running, while others thrive in swamps, ditches, and paddy fields. Most crayfish cannot tolerate polluted water, although some species, such as '' Procambarus clarkii'', are hardier. Crayfish feed on animals and plants, either living or decomposing, and detritus. The term "crayfish" is applied to saltwater species in some countries. Terminology The name "crayfish" comes from the Old French word ' ( Modern French '). The word has been modified to "crayfish" by association with "fish" (folk etymology). The largely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scylla Serrata
''Scylla serrata'' (often called mud crab or mangrove crab, although both terms are highly ambiguous, and black crab) is an ecologically important species of crab found in the estuaries and mangroves of Africa, Australasia, and Asia. In their most common forms, their shell colours vary from a deep, mottled green to very dark brown. Distribution The natural range of ''S. serrata'' is in the Indo-Pacific. It is found from South Africa, around the coast of the Indian Ocean, where it is especially abundant in Sri Lanka, to the Southeast Asian Archipelago, as well as from southern Japan to south-eastern Australia, northern New Zealand, And as far east as Fiji and Samoa. The species has also been introduced to Hawaii and Florida. In Hawaii, mud crabs are colloquially known as Samoan crabs, as they were originally imported from American Samoa. As these crabs are known for their robust size and dense meat content, they have been greatly sought after over the years. As a result of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Journal Of The Linnean Society
The ''Biological Journal of the Linnean Society'' is a direct descendant of the oldest biological journal in the world, the '' Transactions of the Linnean Society''. It succeeded the earlier title in 1969. The journal specializes in evolution, and encompasses work across all taxonomic groups in all five kingdoms of living organisms. It includes all methods, whole-organism or molecular A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion. In quantum physics, organic chemistry, and bioche ..., practical or theoretical. The journal is published by the Linnean Society of London. References External links * Linnean Society of London Biology journals English-language journals Publications with year of establishment missing {{biology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Journal Of Botany
The ''American Journal of Botany'' is a monthly peer-reviewed scientific journal which covers all aspects of plant biology. It has been published by the Botanical Society of America since 1914. The journal has an impact factor of 3.038, as of 2019. As of 2018, access is available through the publisher John Wiley & Sons ( Wiley). From 1951 to 1953, Oswald Tippo served as its editor; the current editor is Pamela Diggle. History In the early 20th century, the field of botany was rapidly expanding, but the publications in which botanists could publish remained limited and heavily backlogged. By 1905, it was estimated that 250,000 contributions were generated in 8 or 9 languages. At the 1911 annual meeting of the society in Washington D.C., it was noted that at least 300 pages of American botanical contributions were sent abroad for publication, with a backlog resulting in a one-year delay in publication. On 31 December 1907, the Botanical Society of America met in Chicago and forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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