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Alzoniella Slovenica
''Alzoniella slovenica'' is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusk in the family Hydrobiidae, which are sometimes known as the snouted water snails. Shell description The width of the shell is up to 0.6 mm. The height of the shell is up to 1.7 mm. ''Alzoniella slovenica'' is blind. Distribution Distribution of this species is western carpathian. This species is found in the White Carpathians. It is endemic to Moravia (Czech Republic) and in Slovakia. Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. nnotated list of mollusc species recorded outdoors in the Czech and Slovak Republics. ''Malacologica Bohemoslovaca'', Suppl. 1: 1–37PDF Its conservation status in the Czech Republic is endangered and it is "rare“ in Slovakia.Šteffek J. (1994). "Current status of the molluscs of Slov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vojen Ložek
Vojen was the third of the seven Bohemian mythical princes between the (also mythical) founder of the Přemyslid dynasty Přemysl the Ploughman and the first historical prince Bořivoj. The names of the princes were first recorded in Cosmas chronicle and then transmitted into the most of historical books of the 19th century including František Palacký's ''The History of the Czech Nation in Bohemia and Moravia''. One theory about the number of the princes is propped on the frescoes on the walls of the Rotunda in Znojmo, Moravia but Anežka Merhautová claimed that the frescoes depict all the members of the Přemyslid dynasty including the Moravian junior princes. Origin of the name Vojen's name is thought to be derived from the Slavonic word ''"vojna"'' meaning ''war''. Záviš Kalandra thought the names of the seven princes were cryptical names of ancient Slavonic days of the week - Vojen being the third - Tuesday, in Latin ''Martis dies'' whereas Mars Mars is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alzoniella
''Alzoniella'' is a genus of minute freshwater spring snails, aquatic gastropod mollusks or micromollusks in the family Hydrobiidae. All the species within the snail genus ''Alzoniella'' are crenobiotic, i.e. they are dependent on springs as a habitat. Species The genus ''Alzoniella'' contains the following species: *''Alzoniella asturica'' (Boeters & Rolán, 1988) *''Alzoniella delmastroi'' Bodon & Cianfanelli, 2004 *''Alzoniella edmundi'' (Boeters, 1984) *''Alzoniella finalina'' Giusti & Bodon, 1984 *''Alzoniella galaica'' (Boeters & Rolán, 1988) *''Alzoniella hartwigschuetti'' (Reischütz, 1983) *''Alzoniella iberopyrenaica'' Arconada, Rolán & Boeters, 2007 *''Alzoniella marianae'' Arconada, Rolán & Boeters, 2007 *''Alzoniella pellitica'' Arconada, Rolán & Boeters, 2007 *''Alzoniella pyrenaica'' Boeters, 1983 *''Alzoniella rolani'' (Boeters, 1986) *''Alzoniella slovenica ''Alzoniella slovenica'' is a species of very small or minute freshwater snail with an opercul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Well
A well is an excavation or structure created in the ground by digging, driving, or drilling to access liquid resources, usually water. The oldest and most common kind of well is a water well, to access groundwater in underground aquifers. The well water is drawn up by a pump, or using containers, such as buckets or large water bags that are raised mechanically or by hand. Water can also be injected back into the aquifer through the well. Wells were first constructed at least eight thousand years ago and historically vary in construction from a simple scoop in the sediment of a dry watercourse to the qanats of Iran, and the stepwells and sakiehs of India. Placing a lining in the well shaft helps create stability, and linings of wood or wickerwork date back at least as far as the Iron Age. Wells have traditionally been sunk by hand digging, as is still the case in rural areas of the developing world. These wells are inexpensive and low-tech as they use mostly manual labour, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groundwater
Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology. Typically, groundwater is thought of as water flowing through shallow aquifers, but, in the technical sense, it can also contain soil moisture, perma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malacologica Bohemoslovaca
''Malacologica Bohemoslovaca'' is a peer-reviewed open access scientific journal covering all aspects of malacology. It was published by the Slovak Academy of Sciences since 2005. It is published by the Department of Botany and Zoology, Faculty of Science, Masaryk University since 2021. The editor-in-chief is Lucie Juřičková (Charles University in Prague). Articles are published in Czech, Slovak or English, with an abstract in English. The journal is abstracted and indexed in The Zoological Record ''The Zoological Record'' (''ZR'') is an electronic index of zoological literature that also serves as the unofficial register of scientific names in zoology. It was started as a print publication in 1864 by the Zoological Society of London, a .... References External links * Malacology journals Multilingual journals Publications established in 2002 Creative Commons Attribution-licensed journals Academic journals published by learned and professional societies Acad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Slovakia
Slovakia is a land-locked country, and therefore the molluscs of Slovakia are all land and freshwater species. There are 247 Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. nnotated list of mollusc species recorded outdoors in the Czech and Slovak Republics. ''Malacologica Bohemoslovaca'', Suppl. 1: 1-37PDF species of molluscs living in the wild in Slovakia. In addition there are 9 gastropod species living only in greenhouses. There are a total of 219 species of gastropods, which breaks down to 51 species of freshwater gastropods, and 168 species of land gastropods, plus 28 species of bivalves living in the wild. There are 8 non-indigenous gastropod species (3 freshwater and 5 land species) and 3 species of bivalves in the wild in Slovakia. This is a total of 6 freshwater non-indigenous species of wild molluscs. ;Summary table of number of species There a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of The Czech Republic
This is a list of the non-marine molluscs of the Czech Republic. That country is land-locked and therefore it has no marine molluscs, only land and freshwater species, including snails, slugs, freshwater clams and freshwater mussels. There are 247 species of molluscs living in the wild in the Czech Republic. In addition there are at least 11 gastropod species surviving in greenhouses. There are 219 gastropod species (50 freshwater and 169 land species) and 28 bivalve species living in the wild. There are also 11 introduced gastropod species (5 freshwater and 7 land species) and 4 bivalve species living in the wild in the Czech Republic. This is a total of 9 freshwater non-indigenous species living in natural habitats. ;Summary table of number of species There are 2 endemic species of molluscs in the Czech Republic: *'' Alzoniella slovenica'' in Moravia (and in Slovakia too) *'' Bulgarica nitidosa'' in Bohemia. History Historical lists from 19th century or overviews of Czec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moravia
Moravia ( , also , ; cs, Morava ; german: link=yes, Mähren ; pl, Morawy ; szl, Morawa; la, Moravia) is a historical region in the east of the Czech Republic and one of three historical Czech lands, with Bohemia and Czech Silesia. The medieval and early modern Margraviate of Moravia was a crown land of the Lands of the Bohemian Crown from 1348 to 1918, an imperial state of the Holy Roman Empire from 1004 to 1806, a crown land of the Austrian Empire from 1804 to 1867, and a part of Austria-Hungary from 1867 to 1918. Moravia was one of the five lands of Czechoslovakia founded in 1918. In 1928 it was merged with Czech Silesia, and then dissolved in 1949 during the abolition of the land system following the communist coup d'état. Its area of 22,623.41 km2 is home to more than 3 million people. The people are historically named Moravians, a subgroup of Czechs, the other group being called Bohemians. Moravia also had been home of a large German-speaking populati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Carpathians
The White Carpathians ( cs, Bílé Karpaty; sk, Biele Karpaty; german: Weiße Karpaten; hu, Fehér-Kárpátok) are a mountain range on the border of the Czech Republic and Slovakia, part of the Carpathians. They are part of the Slovak-Moravian Carpathians, stretching from the Váh river and the Little Carpathians in the south along the border between the Czech Republic and Slovakia to the Morava and the Javorníky range in the north. The mean elevation is 473 m (1,552 ft) and the highest peaks are: * Veľká Javorina ( cs, Velká Javořina), 970 m (3,182 ft) * Chmeľová, 925 m (3,035 ft) * Jelenec, 925 m (3,035 ft) * Veľký Lopeník ( cs, Velký Lopeník), 911 m (2,989 ft) * Kobylinec, 911 m (2,989 ft) The landscape is protected on both sides of the mountains: Biele Karpaty Protected Landscape Area in Slovakia, founded in 1979, and Bílé Karpaty Protected Landscape Area in the Czech Republic, founded in 1980, a Man and Biosphere Reserve since 1996. The areas contain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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