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Tůně U Hajské
Tůně u Hajské is natural monument close to the town Strakonice in Strakonice District, Czech Republic. The area is protected due to large amount of small pools in Otava River floodplain which were formed as a result of gold mining in the Middle Ages. These ponds are containing habitat of critically endangered aquatic plant '' Hottonia palustris'' and many representatives of amphibian species as ''Bufo bufo'', '' Bufo viridis'', ''Bombina bombina The European fire-bellied toad (''Bombina bombina'') is a species of fire-bellied toad native to eastern parts of mainland Europe, where it can be found near waterbodies such as ponds and marshes. It is known for its red colored belly used to wa ...'', '' Hyla arborea'', '' Pelophylax esculentus'' and '' Rana ridibunda''. Nature reserves in the Czech Republic Protected areas in the Strakonice District {{SouthBohemia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Bohemian Region
The South Bohemian Region ( cs, Jihočeský kraj; , ) is an administrative unit (''kraj'') of the Czech Republic, located mostly in the southern part of its historical land of Bohemia, with a small part in southwestern Moravia. The western part of the South Bohemian Region is former Prachens (Prácheňsko), a huge archaic region with distinctive features with its capital, Písek. In 2011, there were 624 municipalities in the region, whereof 54 had a status of a town. The region borders (from the west clockwise) the regions Plzeň, Central Bohemia, Vysočina and South Moravia. To the south it borders Austria (Lower Austria and Upper Austria) and Germany (Bavaria). Until 30 May 2001, the region was named as or , after its capital, České Budějovice. Due to its geographical location and natural surroundings the region belongs to the first settlements that appeared in the distant past. Over the past centuries, the South Bohemian region has been known for fishpond cultivation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strakonice
Strakonice (; german: Strakonitz) is a town in the South Bohemian Region of the Czech Republic. It has about 22,000 inhabitants. Administrative parts Strakonice is made up of town parts of Strakonice I and Strakonice II, and villages of Dražejov, Hajská, Modlešovice, Přední Ptákovice, Střela and Virt. Geography Strakonice is located about northwest of České Budějovice. It lies mostly in the northern tip of the České Budějovice Basin, but the municipal territory also extends to the Blatná Uplands on the north, and to the Bohemian Forest Foothills on the south. The highest point of the territory is the hill Velká Kakada with an altitude of . The town is situated at the confluence of the Volyňka and Otava rivers. There are several ponds in the territory, the largest of them are Velkoholský and Blatský. In the municipal territory there are the nature reserve Bažantnice u Pracejovic and the nature monument Tůně u Hajské. History A moated castle on the Otav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otava River
The Otava (German Wottawa) is a river in West and South Bohemia, Czech Republic. It is a left tributary of the Vltava river. It is long, and its basin area is about , of which in the Czech Republic. The river flows through several towns, including Sušice, Strakonice and Písek. The river's name is of Celtic Celtic, Celtics or Keltic may refer to: Language and ethnicity *pertaining to Celts, a collection of Indo-European peoples in Europe and Anatolia **Celts (modern) *Celtic languages **Proto-Celtic language *Celtic music *Celtic nations Sports Foo ... origin. It is a popular river for water sports. The local dialect of Prachens also uses the name "Wotāva". References Rivers of the Plzeň Region Rivers of the South Bohemian Region Bohemian Forest {{CzechRepublic-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floodplain
A floodplain or flood plain or bottomlands is an area of land adjacent to a river which stretches from the banks of its channel to the base of the enclosing valley walls, and which experiences flooding during periods of high discharge.Goudie, A. S., 2004, ''Encyclopedia of Geomorphology'', vol. 1. Routledge, New York. The soils usually consist of clays, silts, sands, and gravels deposited during floods. Because the regular flooding of floodplains can deposit nutrients and water, floodplains frequently have high soil fertility; some important agricultural regions, such as the Mississippi river basin and the Nile, rely heavily on the flood plains. Agricultural regions as well as urban areas have developed near or on floodplains to take advantage of the rich soil and fresh water. However, the risk of flooding has led to increasing efforts to control flooding. Formation Most floodplains are formed by deposition on the inside of river meanders and by overbank flow. Wherev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mining
Gold mining is the extraction of gold resources by mining. Historically, mining gold from alluvial deposits used manual separation processes, such as gold panning. However, with the expansion of gold mining to ores that are not on the surface, has led to more complex extraction processes such as pit mining and gold cyanidation. In the 20th and 21st centuries, most volume of mining was done by large corporations, however the value of gold has led to millions of small, artisanal miners in many parts of the Global South. Like all mining, human rights and environmental issues are common issues in the gold mining industry. In smaller mines with less regulation, health and safety risks are much higher. History The exact date that humans first began to mine gold is unknown, but some of the oldest known gold artifacts were found in the Varna Necropolis in Bulgaria. The graves of the necropolis were built between 4700 and 4200 BC, indicating that gold mining could be at least 7000 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire and transitioned into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages. Population decline, counterurbanisation, the collapse of centralized authority, invasions, and mass migrations of tribes, which had begun in late antiquity, continued into the Early Middle Ages. The large-scale movements of the Migration Period, including various Germanic peoples, formed new kingdoms in what remained of the Western Roman Empire. In the 7th century, North Africa and the Middle East—most recently part of the Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hottonia Palustris
''Hottonia palustris'', also water violet or featherfoil, is an aquatic plant in the family Primulaceae. Description The plant has a stem reaching up to in height. Its basal roots are buried in the underlying mud, while other silvery, shiny roots dangle freely in the water. The leaves are deeply divided as far as the central vein, like the teeth of a double comb, and are completely submerged, but can surface after a drastic fall in water level. The leaves are alternate or connected to the stem in more or less regular whorls. The flowers are hermaphrodite and pollinated by insects and cleistogamy; they appear from May to June. The plant is self-fertile. Distribution Featherfoil is found in Europe and northern Asia. The species epithet ''palustris'' is Latin for "of the marsh" and indicates its common habitat.Archibald William Smith Cultivation Naturally a bog or marsh plant, most specimens sold have been grown emersed and must be submerged in stages in the aquarium to encou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibian
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bufo Bufo
The common toad, European toad, or in Anglophone parts of Europe, simply the toad (''Bufo bufo'', from Latin ''bufo'' "toad"), is a frog found throughout most of Europe (with the exception of Ireland, Iceland, and some Mediterranean islands), in the western part of North Asia, and in a small portion of Northwest Africa. It is one of a group of closely related animals that are descended from a common ancestral line of toads and which form a species complex. The toad is an inconspicuous animal as it usually lies hidden during the day. It becomes active at dusk and spends the night hunting for the invertebrates on which it feeds. It moves with a slow, ungainly walk or short jumps, and has greyish-brown skin covered with wart-like lumps. Although toads are usually solitary animals, in the breeding season, large numbers of toads converge on certain breeding ponds, where the males compete to mate with the females. Eggs are laid in gelatinous strings in the water and later hatch out int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bufo Viridis
The European green toad (''Bufotes viridis'') is a species of toad found in steppes, mountainous areas, semi-deserts, urban areas and other habitats in mainland Europe, ranging from far eastern France and Denmark to the Balkans and Western Russia. As historically defined, the species ranged east through the Middle East and Central Asia to western China, Mongolia and northwestern India, and south through Italy and the Mediterranean islands to North Africa. Following genetic and morphological reviews, 14 population (all largely or entirely Asian, except for the African and Balearic green toads) are now regarded as separate species. These species and the European green toad are placed in their own genus ''Bufotes'', but they were included in ''Bufo''. Description The spots on the back vary from green to dark brown and sometimes red spots appear, too. The underside is white or very lightly coloured. The European green toad will change colour in response to heat and light changes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bombina Bombina
The European fire-bellied toad (''Bombina bombina'') is a species of fire-bellied toad native to eastern parts of mainland Europe, where it can be found near waterbodies such as ponds and marshes. It is known for its red colored belly used to ward off predators, an example of aposematism, and its distinctive "whoop" call. Description The European fire-bellied toad is a medium sized frog, growing up to approximately . The dorsal coloration can vary from gray to brown to green, while the stomach is red with thick black mottling. The backs of these frogs are covered in warts. When threatened by a predator, the fire-bellied toad will lift up its arms (sometimes flipping over) to expose its red coloration and show off its toxicity to the potential predator. This is known as Unkenreflex, and is an example of aposematism. Distribution The European fire-bellied toad is found throughout Central and Eastern Europe. More particularly, its range starts in eastern Germany (including eas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyla Arborea
The European tree frog (''Hyla arborea'') is a small tree frog. As traditionally defined, it was found throughout much of Europe, Asia and northern Africa,Frost, Darrel R. ''Amphibian Species of the World''. Allen Press, Inc., 1985, p. 126. but based on molecular genetic and other data several populations formerly included in it are now recognized as separate species (for example, '' H. intermedia'' of Italy and nearby, '' H. molleri'' of the Iberian Peninsula, '' H. meridionalis'' of parts of southwestern Europe and northern Africa, and '' H. orientalis'' of parts of Eastern Europe, Turkey and the Black Sea and Caspian Sea regions), limiting the true European tree frog to Europe from France to Poland and Greece.Duellman, William E. (2003). ''Grzimek's Animal Encyclopedia''. 2nd Ed., Vol. 2. Gale, p. 235.Stöck M., Dufresnes C., Litvinchuk S.N., Lymberakis P., Biollay S., Berroneau M., Borzée A., Ghali K., Ogielska M., and Perrin N. (2012). Cryptic diversity among Western Palearct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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