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Atelopus Cruciger
''Atelopus cruciger'', also known as the Veragua stubfoot toad or Rancho Grande harlequin frog, is a species of toad in the family Bufonidae. It is endemic to Venezuela and is known from the central Venezuelan Coastal Range. The species was already suspected to be extinct because, despite considerable effort, none had been found since 1986. However, in 2003, a small population was found, with few other locations discovered later. It is mainly threatened by chytridiomycosis. It is locally called ''sapito rayado''. Description Adult males measure and adult females in snout–vent length. The body is slender. The snout is pointed in dorsal view. No tympanum is visible, but the supratympanic crest is well developed. There are small rounded warts present on the dorsolateral surfaces, most prominently around the arm insertions and as a dorsolateral row. The fingers have basal webbing while the toes are slightly more webbed. The hind limbs are relatively long. Preserved specimens ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin Lichtenstein
Martin Hinrich Carl Lichtenstein (10 January 1780 – 2 September 1857) was a German physician, explorer, botanist and zoologist. Biography Born in Hamburg, Lichtenstein was the son of Anton August Heinrich Lichtenstein. He studied medicine at Jena and Helmstedt. Between 1802 and 1806 he travelled in southern Africa, becoming the personal physician of the Governor of the Cape of Good Hope. In 1811 he published ''Reisen im südlichen Afrika : in den Jahren 1803, 1804, 1805, und 1806''; as a result, he was appointed professor of zoology at the University of Berlin in 1811, and appointed director of the Berlin Zoological Museum in 1813. In 1829, he was elected a foreign member of the Royal Swedish Academy of Sciences. He died after he had a stroke at sea travelling aboard a steamer from Korsør to Kiel. Legacy Lichtenstein was responsible for the creation of Berlin's Zoological Gardens in 1841, when he persuaded King Frederick William IV of Prussia to donate the ground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diurnality
Diurnality is a form of plant and animal behavior characterized by activity during daytime, with a period of sleeping or other inactivity at night. The common adjective used for daytime activity is "diurnal". The timing of activity by an animal depends on a variety of environmental factors such as the temperature, the ability to gather food by sight, the risk of predation, and the time of year. Diurnality is a cycle of activity within a 24-hour period; cyclic activities called circadian rhythms are endogenous cycles not dependent on external cues or environmental factors except for a zeitgeber. Animals active during twilight are crepuscular, those active during the night are nocturnal and animals active at sporadic times during both night and day are cathemeral. Plants that open their flowers during the daytime are described as diurnal, while those that bloom during nighttime are nocturnal. The timing of flower opening is often related to the time at which preferred pollinators ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Hinrich Lichtenstein
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Described In 1856
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 decl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Venezuela
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 de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Venezuela
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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atelopus
''Atelopus'' is a large genus of Bufonidae, commonly known as harlequin frogs or toads, from Central and South America, ranging as far north as Costa Rica and as far south as Bolivia. ''Atelopus'' species are small, generally brightly colored, and diurnal. Most species are associated with mid-to-high elevation streams. This genus has been greatly affected by amphibian declines, and many species are now considered endangered, while others already are extinct. Almost 40% of the described species in the genus are considered possibly extinct; this is raised to 45% when data deficient species are added; this number may be even higher, given that the genus contains many undescribed species that could also be extinct, and many of the species considered critically endangered but extant may have gone extinct after the last surveys that detected them, or could go extinct in the future. While threatened by habitat loss, pollution, and introduced species, the primary cause of these decli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venezuelan Bolívar
The bolívar is the official currency of Venezuela. Named after the hero of Latin American independence Simón Bolívar, it was introduced following the monetary reform in 1879, before which the venezolano was circulating. Due to its decade-long reliance on silver and gold standards, and then on a peg to the United States dollar, it was considered among the most stable currencies and was internationally accepted until 1983, when the government decided to adopt a floating exchange rate instead. Since 1983, the currency has experienced a prolonged period of high inflation, losing value almost 500-fold against the US dollar in the process. The depreciation became manageable in mid-2000s, but it still stayed in double digits. It was then, on 1 January 2008, that the hard bolívar (''bolívar fuerte'' in Spanish, sign: Bs.F, code: VEF) replaced the original bolívar (sign: Bs; code: VEB) at a rate of Bs.F 1 to Bs. 1,000 (the abbreviation Bs. is due to the first and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maracay
) , image_skyline = , image_caption =Top:Maracay Municipal Garden and Las Delicias area, Second: Sindoni Tower, Los Tamarindo residential area and overview to Maracay, Third:Maestranza Cesar Giron Bullring Stadium, Girardot Square and Maracay Assumption Cathedral, Bottom:Night view of downtown Base Aragua area (all item of left to right) , image_flag = Bandera de Maracay.svg , image_seal = Escudo de Maracay.svg , image_map = , map_caption = , pushpin_map = Venezuela , subdivision_type = Country , subdivision_type1 = State , subdivision_type2 = Municipality , subdivision_name = , subdivision_name1 = Aragua , subdivision_name2 = Girardot , established_title = Founded , established_date = March 5, 1701 , established_title2 = , es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valencia, Carabobo
Valencia () is the capital city of Carabobo State and the third-largest city in Venezuela. The city is an economic hub that contains Venezuela's top industries and manufacturing companies. It is also the largest city in the Valencia-Maracay metropolitan region, which with a population of about 4.5 million is the country's second largest after that of Caracas. Caracas lies some away to the east. History The area was already inhabited in the fourth millennium BC. The inhabitants were mainly hunters and gatherers who might have already developed some elementary forms of agriculture. Between AD 200 and 1000 an important settlement was formed close to Lake Valencia. Around the year 1000, waves of migration started to come from the Orinoco river area, probably arriving along the Pao river. The fusion of previous settlements with these new populations gave rise to the Vacencioide culture. People in the area belonged mostly to Arawak groups. They were hunters and gatherers who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Pittier National Park
Henri Pittier National Park is the oldest national park in Venezuela, originally created in 1937 under the name of ''Rancho Grande'' by decree of President Eleazar López Contreras. In 1953 the park was renamed in honor of Henri Pittier, a distinguished Swiss geographer, botanist and ethnologist, who arrived in Venezuela in 1917, classified more than 30,000 plants in the country and devoted many years studying the flora and fauna in the park. Henry Pittier National Park has the honor of having started the history of national parks of Venezuela. Its 107,800 hectares, located in the north of Aragua state, comprise most of the Araguan coast and mountainous area of Carabobo state. It also borders San Esteban National Park. Henri Pittier National Park is the largest among the national parks of the Venezuelan Coastal Range. The park consists of two geographic systems: a steep mountainous interior where there are more than 500 bird species and 22 endemic species and a coastal area with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Above Sea Level
Height above mean sea level is a measure of the vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as '' orthometric heights''. The combination of unit of measurement and the physical quantity (height) is called " metres above mean sea level" in the metric system, while in United States customary and imperial units it would be called " feet above mean sea level". Mean sea levels are affected by climate change and other factors and change over time. For this and other reasons, recorded measurements of elevation above sea level at a reference time in history might differ from the actual elevation of a given location over sea level at a given moment. Uses Metres above sea level is the standard measurement of the elevation or altitude of: * Geographic locations such as towns, mountains and other landmarks. * The top of buildings and other structures. * Flying obje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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