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Yunganastes Ashkapara
''Yunganastes ashkapara'' is a species of frog in the family Strabomantidae. It is endemic to Bolivia and is known from the vicinity of its type locality in the Chapare Province (northern Cochabamba Department) and from Abra de la Cruz in the Manuel María Caballero Province (western Santa Cruz Department). The specific name ''ashkapara'' is derived from Quechuan ''ashka'' meaning "a lot" and ''para'' for "rain", and refers to the very high rainfall in the region of the type locality. Description Two adult males in the type series measure in snout–vent length (females are unknown). The head is narrower than the body; the snout is rounded. The tympanum is ovoid and the membrane is barely differentiated. The supra-tympanic fold is low and not obscuring the tympanum. The canthus rostralis is sharp. Neither fingers nor toes have webbing but the toes have weakly defined lateral fringes. The outer fingers have expanded discs; the toe discs are almost as large as these. Dorsa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jörn Köhler
Jörn Köhler (born 23 June 1970 in Göttingen) is a German herpetologist. He studied biology at the University of Bonn and received a Ph.D. in zoology in 2000, being associated with the '' Zoologische Forschungsmuseum Alexander Koenig'', Bonn. His main research focus is on taxonomy, systematics, phylogeny, biogeography and ecology of tropical amphibians and reptiles, mainly in South America and Africa. He is founder oBIOPATin 1999. From 2007 to 2013 he was member of the steering committee of the German Herpetological SocietyDGHT and is Chief Editor oSALAMANDRA - German Journal of Herpetology Since 2005 he has worked as researcher and curator for vertebrate zoology at the ''Hessisches Landesmuseum Darmstadt Hessisches Landesmuseum Darmstadt (HLMD) is a large multidisciplinary museum in Darmstadt, Germany. The museum exhibits Rembrandt, Beuys, a primeval horse and a mastodon under the slogan "The whole world under one roof". As one of the oldest pub ...'' and has published article ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vocal Sac
The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call. The presence or development of the vocal sac is one way of externally determining the sex of a frog or toad in many species; taking frogs as an example; The vocal sac is open to the mouth cavity of the frog, with two slits on either side of the tongue. To call, the frog inflates its lungs and shuts its nose and mouth. Air is then expelled from the lungs, through the larynx, and into the vocal sac. The vibrations of the larynx emits a sound, which resonates on the elastic membrane of the vocal sac. The resonance causes the sound to be amplified and allows the call to carry further. Muscles within the body wall force the air back and forth between the lungs and vocal sac. Development The development of the vocal sac is different in most species, however they mostly follow the same process. The d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Described In 2000
Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial animal, 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 re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Bolivia
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] |
Amphibians Of Bolivia
Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial animal, 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 re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of The Andes
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 drama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yunganastes
''Yunganastes'' is a small genus of frogs in the family Strabomantidae found in southern Peru and central to northern Bolivia. They were formerly placed in the genus ''Eleutherodactylus'' as the "''Eleutherodactylus fraudator'' group", subsequently moved to ''Pristimantis'', before becoming recognized as a separate subgenus, and finally, a genus. Its sister taxon is the genus ''Pristimantis''. ''Yunganastes'' are endemic to the cloud forests and humid montane forests of the Cordillera Oriental of the Andes in Bolivia and southern Peru. Etymology The generic name ''Yunganastes'' is derived from '' yunga'', the humid forests of the Andean valleys, and the Greek ''nastes'' for "dweller". This refers to the typical habitat of frogs in this genus. Description ''Yunganastes'' are robust-bodied and moderate to medium-sized frogs. Males can reach and females in snout–vent length. The limbs are moderately long. The head is as wide or wider than the body; the snout is short. The tymp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrasco National Park
Carrasco National Park is a national park in Cochabamba Department, Bolivia. It has a surface area of 6,226 square kilometers. More than 5,000 plant species have been registered in the area, placing the park among Bolivia's most biologically diverse. It is a protected area and people are prohibited from living inside the park. It was created on October 11, 1991. The park is a mountainous landscape of rivers, waterfalls, gentle valleys and deep canyons. It protects part of the Bolivian Yungas ecoregion. There is exuberant vegetation that protects and harbors several animals, plants and trees that are in danger of extinction. The park is located to the east of Cochabamba Department and extends along the provinces of Carrasco, Tiraque Tiraque is a location in the Cochabamba Department, Bolivia, and capital of the Tiraque Province Tiraque is a province in the Cochabamba Department in central Bolivia. Its capital is Tiraque. Subdivision The province is divided into two muni ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ... [...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 objects such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiphyte
An epiphyte is an organism that grows on the surface of a plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphytes grow are called phorophytes. Epiphytes take part in nutrient cycles and add to both the diversity and biomass of the ecosystem in which they occur, like any other organism. They are an important source of food for many species. Typically, the older parts of a plant will have more epiphytes growing on them. Epiphytes differ from parasites in that they grow on other plants for physical support and do not necessarily affect the host negatively. An organism that grows on another organism that is not a plant may be called an epibiont. Epiphytes are usually found in the temperate zone (e.g., many mosses, liverworts, lichens, and algae) or in the tropics (e.g., many ferns, cacti, orchids, and bromeliads). Epiphyte species make good houseplants due to their minimal wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montane Forest
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands, shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply. Life zones As elevation increases, the climate becomes cooler, due to a decrease in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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