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Javan Torrent Frog
The Javan torrent frog (''Huia masonii'') is a species of frog in the family Ranidae. It is endemic to Java, Indonesia. It is found in Mount Halimun Salak National Park, Ujung Kulon National Park, and Gunung Gede Pangrango National Park in West Java, as well as in Dieng Nature Reserve in Central Java. Its natural habitats are clear, fast-flowing streams and torrents in forests and in somewhat more open areas. It is a common species within this specific habitat, which is being threatened by sedimentation of streams as well as agro-chemical pollution. Javan torrent frog males use high-frequency communication to overcome the noise of their riverine habitats that is dominated by low frequencies. The second harmonic of the calls is ultrasonic Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Albert Boulenger
George Albert Boulenger (19 October 1858 – 23 November 1937) was a Belgian-British zoologist who described and gave scientific names to over 2,000 new animal species, chiefly fish, reptiles, and amphibians. Boulenger was also an active botanist during the last 30 years of his life, especially in the study of roses. Life Boulenger was born in Brussels, Belgium, the only son of Gustave Boulenger, a Belgian public notary, and Juliette Piérart, from Valenciennes. He graduated in 1876 from the Free University of Brussels with a degree in natural sciences, and worked for a while at the Royal Belgian Institute of Natural Sciences, Brussels, as an assistant naturalist studying amphibians, reptiles, and fishes. He also made frequent visits during this time to the ''Muséum national d'Histoire naturelle'' in Paris and the British Museum in London. In 1880, he was invited to work at the Natural History Museum, then a department of the British Museum, by Dr. Albert C. L. G. Günt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dieng Plateau
The Dieng Plateau is a marshy plateau that forms the floor of a caldera complex on the Dieng Volcanic Complex in Wonosobo and Banjarnegara Regencies, Central Java Province, Indonesia. Referred to as "Dieng" by Indonesians, it sits at above sea level, far from major population centres. The name "Dieng" comes from ''Dihyang'' which means "place of the ancestors or gods". Part of General Sudirman's guerrilla campaign during the Indonesian War of Independence took place in the area. Etymology The name "Dihyang" comes from Old Javanese: ''di'' means "place" and ''hyang'' means "ancestor" or "gods", literally Dihyang means "place of the ancestors". Dihyang is a mountainous area, ancient Javanese believed that ancestors and gods resided in high places. An inscription reveals that the ancient Javanese used the Dihyang area as a center for worship. Mentioned in the Gunung Wule inscription in 861 AD, someone was ordered to maintain a sacred building in an area called ''Dihyang''. Loca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Java
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 Indonesia
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 declin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huia (frog)
''Huia'' is a group of true frogs found in Southeast Asia. Many are commonly known as "torrent frogs" after their favorite habitat - small rapid-flowing mountain and hill streams -, but this name is used for many similar-looking frogs regardless of whether they are closely related. A seemingly less ambiguous name is huia frogs; however, the supposed genus seems actually to be a polyphyletic " wastebin taxon" and might contain only a fraction of the dozens of species placed here by some authors.Cai ''et al.'' (2007), Stuart (2008) Several species of ''Amolops'' and ''Odorrana'' are highly convergent with ''Huia''. '' O. absita'' for example is highly similar in habitus to the completely allopatric '' H. masonii''. Though the latter might not be a member of ''Huia'' in the strictest sense, it is at least a very close relative.Stuart (2008) In another incidence of convergent evolution yielding adaptation to habitat, the tadpoles of ''Amolops'', ''Huia'', ''Meristogenys'' as well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hole-in-the-head Frog
The hole-in-the-head frog (''Huia cavitympanum'') is a species of frog in the family Ranidae. It is found on the island of Borneo. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and torrential rivers. It is threatened by habitat loss. Vocalization ''H. cavitympanum'' is the only known species of frog to vocalize at only an Ultrasound, ultrasonic level. The frogs have eardrums recessed in the side of the skull, with an ear canal similar to mammals' anatomy. It appears to have evolved this higher pitch (more than 20 kHz) frequency of communication to circumvent the background noise of its waterfall habitat. See also *Concave-eared Torrent Frog (''Odorrana tormota'') *Javan torrent frog (''Huia masonii'') References External links *https://www.sciencedaily.com/releases/2009/05/090508192231.htm Huia (frog) Amphibians of Indonesia Amphibians of Malaysia Endemic fauna of Borneo Taxonomy articles cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concave-eared Torrent Frog
''Odorrana tormota'', also known as the concave-eared torrent frog, is a species of frog native to China. Its distribution is restricted to Huangshan Mountains in Anhui and Jiande and Anji counties in northern Zhejiang. It occurs in fast-flowing streams and the surrounding habitats, and breeds in streams. The informally assigned common name for frogs in this genus (and for frogs in certain other genera) is '' torrent frog''. Taxonomy This species was formerly placed in the genus '' Amolops'' and later on separated in a monotypic genus ''Wurana''. It was eventually recognized to belong in the genus ''Odorrana'' where it is perhaps closely related to '' O. versabilis'' and the long-snout torrent frog (''O. nasica'') which also was for long placed in ''Amolops''. The informally assigned common name for frogs in this genus (and for frogs in certain other genera) is '' torrent frog'' Ultrasonic communication Concave-eared torrent frog is the first frog (and the first non-mammalian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultrasound
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is not different from "normal" (audible) sound in its physical properties, except that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz. Ultrasound is used in many different fields. Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles. History Acoustics, the science of sound, starts as far back as Pythagoras in the 6th century BC, who ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Java
Central Java ( id, Jawa Tengah) is a province of Indonesia, located in the middle of the island of Java. Its administrative capital is Semarang. It is bordered by West Java in the west, the Indian Ocean and the Special Region of Yogyakarta in the south, East Java in the east, and the Java Sea in the north. It has a total area of 32,800.69 km2, with a population of 36,516,035 at the 2020 Census making it the third-most populous province in both Java and Indonesia after West Java and East Java. The official estimate as at mid 2021 was 36,742,501.Badan Pusat Statistik, Jakarta, 2022. The province also includes the island of Nusakambangan in the south (close to the border of West Java), and the Karimun Jawa Islands in the Java Sea. Central Java is also a cultural concept that includes the Yogyakarta Special Region, in turn including the city of Yogyakarta; however, administratively that city and its surrounding regencies have formed a separate special region (equiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Java
West Java ( id, Jawa Barat, su, ᮏᮝ ᮊᮥᮜᮧᮔ᮪, romanized ''Jawa Kulon'') is a province of Indonesia on the western part of the island of Java, with its provincial capital in Bandung. West Java is bordered by the province of Banten and the country's capital region of Jakarta to the west, the Java Sea to the north, the province of Central Java to the east and the Indian Ocean to the south. With Banten, this province is the native homeland of the Sundanese people, the second-largest ethnic group in Indonesia. West Java was one of the first eight provinces of Indonesia formed following the country's independence proclamation and was later legally re-established on 14 July 1950. In 1966, the city of Jakarta was split off from West Java as a 'special capital region' (), with a status equivalent to that of a province, while in 2000 the western parts of the province were in turn split away to form a separate Banten province. Even following these split-offs, West Java ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torrent Frog
Torrent frogs are a number of unrelated frogs that prefer to inhabit small rapid-flowing mountain or hill streams with a lot of torrents. They are generally smallish neobatrachians with a greyish-brown and usually darkly mottled back, giving them excellent camouflage among wet rocks overgrown with algae; their well-developed feet make them agile climbers of slippery rocks. Torrent frogs belong to the following taxa: * The "torrent frogs" of Asia are certain species in various ranoid genera: ''Amolops'', ''Huia'', ''Odorrana'' (all Ranidae), ''Micrixalus'', ( Micrixalidae) and '' Nanorana'' (Dicroglossidae). * The "torrent frogs" of Africa are the genera ''Arthroleptides'', ''Petropedetes'' (both family Petropedetidae) and '' Odontobatrachus'' ( Odontobatrachidae), which are found in eastern Africa, central Africa and western Africa, respectively. * The "torrent frogs" of Australia are the genus ''Taudactylus'' of the Australian ground frog family (Myobatrachidae). * The torrent t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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