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Azure-thighed Tree Frog
The azure-thighed tree frog (''Litoria azuroscelis''), azure-thighed treefrog or, in Indonesian, ''katak-pohon paha-biru'', is a species of tree frog in the subfamily Pelodryadinae of the family Hylidae that is native to Western New Guinea. It was described by a group of Australian herpetologists in 2023. Description The frog was named for the purple-blue colouration on the hidden portion of its hindlegs. The species is mostly dark green, with reddish-brown irises, and a mostly clear nictitating membrane, besides the darker dorsal margin. Adult males reach an estimated size of or under 66.6 mm (2.62 in). It differs from other members of the genus by the extent of hand webbing, as well as the size, shape, and colouration of the male's nuptial pad. It has a distinctive call, described as a "''tonk''... – ''tonk''... – ''tonk''..." sound. It occurs in "a series of 2–7 calls", with a "repetition rate of 2.02 calls/s". Discovery The azure-thighed tree frog was dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesian Language
Indonesian (; ) is the official language, official and national language of Indonesia. It is a standard language, standardized variety (linguistics), variety of Malay language, Malay, an Austronesian languages, Austronesian language that has been used as a lingua franca in the multilingual Indonesian archipelago for centuries. With over 280 million inhabitants, Indonesia ranks as the list of countries by population, fourth-most populous nation globally. According to the 2020 census, over 97% of Indonesians are fluent in Indonesian, making it the largest language by number of speakers in Southeast Asia and one of the List of languages by total number of speakers, most widely spoken languages in the world.James Neil Sneddon. ''The Indonesian Language: Its History and Role in Modern Society''. UNSW Press, 2004. Indonesian vocabulary has been influenced by various native regional languages such as Javanese language, Javanese, Sundanese language, Sundanese, Minangkabau language, Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuptial Pad
A nuptial pad (also known as thumb pad, or nuptial excrescence) is a secondary sex characteristic present on some mature male frogs and salamanders. Triggered by androgen hormones, this breeding gland (a type of mucous gland) appears as a spiked epithelial swelling on the forearm and prepollex that aids with grip, which is used primarily by males to grasp (or clasp) females during amplexus. They can also be used in male–male combat in some species. Historical background Austrian biologist Paul Kammerer experimented on midwife toads' nuptial pads. He used the offspring's apparent enlargening from generation-to-generation as evidence of Lamarckian evolution. Examples Many amphibian species manifest nuptial pads for use in amplexus, an example being the rough-skinned newt The rough-skinned newt or roughskin newt (''Taricha granulosa'') is a North American newt known for the strong toxin exuded from its skin. Appearance A stocky newt with rounded snout, it ranges from l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Distribution
Species distribution, or species dispersion, is the manner in which a biological taxon is spatially arranged. The geographic limits of a particular taxon's distribution is its range, often represented as shaded areas on a map. Patterns of distribution change depending on the scale at which they are viewed, from the arrangement of individuals within a small family unit, to patterns within a population, or the distribution of the entire species as a whole (range). Species distribution is not to be confused with biological dispersal, dispersal, which is the movement of individuals away from their center of origin, region of origin or from a population center of high population density, density. Range In biology, the range of a species is the geographical area within which that species can be found. Within that range, distribution is the general structure of the species population, while dispersion is the variation in its population density. Range is often described with the foll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wandammen Peninsula
The Wondiboy Peninsula, also known as the Wondiwoi, Wandammen (spelled locally Wandamen), Wondama, or in old sources Mandamy is a mountainous peninsula in Wondama Bay Regency, Western New Guinea. It extends northwards from the Bird's Neck Isthmus into Cenderawasih Bay, and is composed administratively of the Rasiei, Wondiboy, Wasior and Teluk Duairi Districts (''kecamatan'') within the regency. At the northern end of the peninsula the land breaks up into a series of islands which form Roon District, of which the largest is Roon Island. Separate from the New Guinea Highlands, the mountain chain is northwest of the Kobowre Mountains summiting in Dogiyai Regency. These densely forested mountains run north and south along the spine of the peninsula, rising from the shore up to 2,250 metres elevation, and extending southwards into the Bird's Neck Isthmus.Diamond, Jared M. and Bishop, K. David. (2015). Avifaunas of the Kumawa and Fakfak Mountains, Indonesian New Guinea. ''Bulletin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Rainforest
Tropical rainforests are dense and warm rainforests with high rainfall typically found between 10° north and south of the Equator. They are a subset of the tropical forest biome that occurs roughly within the 28° latitudes (in the torrid zone between the Tropic of Cancer and Tropic of Capricorn). Tropical rainforests are a type of tropical moist broadleaf forest, that includes the more extensive seasonal tropical forests. True rainforests usually occur in tropical rainforest climates where no dry season occurs; all months have an average precipitation of at least . Seasonal tropical forests with tropical monsoon climate, tropical monsoon or tropical savanna climate, savanna climates are sometimes included in the broader definition. Tropical rainforests ecosystems are distinguished by their consistent, high temperatures, exceeding monthly, and substantial annual rainfall. The abundant rainfall results in nutrient-poor, leached soils, which profoundly affect the flora and fau ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Testing
Genetic testing, also known as DNA testing, is used to identify changes in DNA sequence or chromosome structure. Genetic testing can also include measuring the results of genetic changes, such as RNA analysis as an output of gene expression, or through biochemical analysis to measure specific protein output. In a medical setting, genetic testing can be used to diagnose or rule out suspected genetic disorders, predict risks for specific conditions, or gain information that can be used to customize medical treatments based on an individual's genetic makeup. Genetic testing can also be used to determine biological relatives, such as a child's biological parentage (genetic mother and father) through DNA paternity testing, or be used to broadly predict an individual's ancestry. Genetic testing of plants and animals can be used for similar reasons as in humans (e.g. to assess relatedness/ancestry or predict/diagnose genetic disorders), to gain information used for selective breed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain Stream
A mountain stream is a Stream, brook or stream, usually with a steep gradient, flowing down a mountainside. Its swift flow rate often transports large quantities of rock (geology), rock, gravel, soil, wood or even entire Trunk (botany), logs with the stream. The main characteristic of mountain streams in the Alpine region is their steep gradient and sharply varying rates of flow within a short period of time, as a result of snowmelt and sudden storms. Streams of such nature are rarer in gently rolling countryside, although they may occur on scarp slopes where, although the height difference is not so great, they tend to have a larger drainage basin, catchment area than mountain streams. Mountain streams may be broadly divided into three sections. In the "catchment funnel" (''Sammeltrichter'') high on the mountainsides, water and erosion (geology), eroded soil, rock and gravel are gathered. The stream then flows at high speed through a "drainage channel" (''Abflussrinne'') into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterfall
A waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf. Waterfalls can be formed in several ways, but the most common method of formation is that a river courses over a top layer of resistant bedrock before falling onto softer rock, which erodes faster, leading to an increasingly high fall. Waterfalls have been studied for their impact on species living in and around them. Humans have had a distinct relationship with waterfalls since prehistory, travelling to see them, exploring and naming them. They can present formidable barriers to navigation along rivers. Waterfalls are religious sites in many cultures. Since the 18th century, they have received increased attention as tourist destinations, sources of hydropower, andparticularly since the mid-20th centuryas subjects of research. Definition and terminology A waterfal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Litoria
''Litoria'' is a genus of Hylidae, hylid tree frogs, sometimes collectively referred to as Australasian treefrogs. Description The species within the genus ''Litoria'' are extremely variable in appearance, behaviour, and habitat. The smallest species is the javelin frog (''L. microbelos''), reaching a maximum snout–to–Cloaca, vent length of , while the largest, the giant tree frog (''L. infrafrenata''), reaches a size of . They are distinguishable from other tree frogs by the presence of horizontal irises, no pigmentation of the eyelids, and their distribution east and south from Wallacea. Over one hundred species are recognised and new species are still being added, such as the Pinocchio frog discovered in 2008 and described in 2019. Distribution and habitat The frogs are native to Australia, the Bismarck Archipelago, the Solomon Islands, New Guinea, the Lesser Sunda Islands, and the Moluccan Islands. The appearance, behaviour and habitat of each species are usually linked ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelodryadinae
Pelodryadinae, also known as Australian treefrogs (although not all members are arboreal), is a subfamily of frogs found in the region of Australia and New Guinea, and have also been introduced to New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ..., Guam, New Zealand, and Vanuatu. The subfamily is thought to be the sister group to the leaf frogs (Phyllomedusinae), a subfamily of Arboreal locomotion, arboreal frogs known from the Neotropical realm, Neotropics. The common ancestor of both subfamilies is thought to have lived in early Cenozoic South America, with the two subfamilies diverging from one another during the Eocene. The ancestors of the subfamily Pelodryadinae likely invaded Australasia via the Antarctic land bridge, which at the time was not yet frozen over, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nictitating Membrane
The nictitating membrane (from Latin '' nictare'', to blink) is a transparent or translucent third eyelid present in some animals that can be drawn across the eye from the medial canthus to protect and moisten it while maintaining vision. Most Anura (tailless amphibians), some reptiles, birds, and sharks, and some mammals (such as cats, beavers, polar bears, seals and aardvarks) have full nictitating membranes; in many other mammals, a small, vestigial portion of the nictitating membrane remains in the corner of the eye. It is often informally called a third eyelid or haw; the scientific terms for it are the ''plica semilunaris'', ''membrana nictitans'', or ''palpebra tertia''. Description The nictitating membrane is a transparent or translucent third eyelid present in some animals that can be drawn across the eye for protection and to moisten it while maintaining vision. The term comes from the Latin word '' nictare'', meaning "to blink". It is often called a ''thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
