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Amolops Afghanus
''Amolops'' (commonly known as cascade frogs or sucker frogs) is a genus of true frogs (family Ranidae) native mainly to eastern and south-eastern Asia. These frogs are closely related to such genera as '' Huia'', ''Meristogenys'', ''Odorrana'', ''Pelophylax'' and ''Rana'', but still form a distinct lineage among the core radiation of true frogs.Cai ''et al.'' (2007), Stuart (2008) They 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 loosely related. Several species are highly convergent with other Ranidae "torrent frogs". '' A. archotaphus'' and its relatives for example very much resemble ''Odorrana livida''. In another incidence of convergent evolution yielding adaptation to habitat, the tadpoles of ''Amolops'', ''Huia'', ''Meristogenys'' as well as ''Rana sauteri'' have a raised and usually well-developed sucker on their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amolops Panhai
''Amolops panhai'', commonly known as the peninsular torrentfrog, is a species of true frog that can be found in western and peninsular Thailand and in eastern Myanmar. It is associated with streams and waterfalls in moist lowland forests. Its common name in Thai are ''Marbled Tenasserim Frog'' (กบลายหินตะนาวศรี) and ''Panha's Marbled Frog'' (กบลายหินปัญหา). The specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ... honours Thai herpetologist, invertebrate biologist and malacologist Prof. Dr. Somsak Panha, professor of Department of Biology, Faculty of Science, Chulalongkorn University, who is key personnel in herpetology and malacology of Thailand. References panhai Amphibians described in 2006 Amphib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convergent Evolution
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy. The recurrent evolution of flight is a classic example, as flying insects, birds, pterosaurs, and bats have independently evolved the useful capacity of flight. Functionally similar features that have arisen through convergent evolution are ''analogous'', whereas '' homologous'' structures or traits have a common origin but can have dissimilar functions. Bird, bat, and pterosaur wings are analogous structures, but their forelimbs are homologous, sharing an ancestral state despite serving different functions. The opposite of convergence is divergent evolution, where related species evolve different traits. Convergent evolution is similar to parallel evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amolops Akhaorum
''Amolops akhaorum'' is a species of true frogs (family Ranidae) discovered in 2007 in the Nam Ha National Protected Area, north-western Laos. It is still only known from its type locality. The specific name ''akhaorum'' refers to the local Akha people who helped with the fieldwork of the team who discovered the species. Description Adult males measure in snout–vent length; females are unknown. The overall appearance is moderately slender with long head. The snout is obtusely pointed in dorsal view (projecting beyond lower jaw) and round in profile. The tympanum is distinct and round. The canthus rostralis is distinct. The fingers have large discs but no webbing. The toes have smaller discs and are heavily webbed. Skin is smooth but there are some large, raised, black tubercles on the dorsum. The dorsum is otherwise green. The side of head is black; there is a narrow gold stripe on canthus that start from the tip of snout and continues along margin of upper eyelid and ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amolops Afghanus
''Amolops'' (commonly known as cascade frogs or sucker frogs) is a genus of true frogs (family Ranidae) native mainly to eastern and south-eastern Asia. These frogs are closely related to such genera as '' Huia'', ''Meristogenys'', ''Odorrana'', ''Pelophylax'' and ''Rana'', but still form a distinct lineage among the core radiation of true frogs.Cai ''et al.'' (2007), Stuart (2008) They 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 loosely related. Several species are highly convergent with other Ranidae "torrent frogs". '' A. archotaphus'' and its relatives for example very much resemble ''Odorrana livida''. In another incidence of convergent evolution yielding adaptation to habitat, the tadpoles of ''Amolops'', ''Huia'', ''Meristogenys'' as well as ''Rana sauteri'' have a raised and usually well-developed sucker on their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amolops Marmoratus
''Amolops marmoratus'' is a species of ranid frog found in Asia. Its common names include marbled sucker frog, marbled cascade frog, Pegu torrent frog, and many others. The taxonomic status of many populations formerly assigned to this species is uncertain. Description ''Amolops marmoratus'' shows a pronounced sexual dimorphism in size: males grow to snout-vent length of and females to . It is a relatively small species among ''Amolops''. Distribution and habitat ''Amolops marmoratus'' is only known with certainty from Myanmar and likely from northern Thailand, though it may occur more widely. For example, International Union for Conservation of Nature (IUCN), using a less stringent delineation of the species, reported the species also from Bangladesh, Bhutan, China, India, and Nepal. While IUCN in its assessment in 2004 considered ''Amolops marmoratus'' to be of "Least Concern A least-concern species is a species that has been categorized by the International Union for Con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thailand
Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bordered to the north by Myanmar and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the west by the Andaman Sea and the extremity of Myanmar. Thailand also shares maritime borders with Vietnam to the southeast, and Indonesia and India to the southwest. Bangkok is the nation's capital and largest city. Tai peoples migrated from southwestern China to mainland Southeast Asia from the 11th century. Indianised kingdoms such as the Mon, Khmer Empire and Malay states ruled the region, competing with Thai states such as the Kingdoms of Ngoenyang, Sukhothai, Lan Na and Ayutthaya, which also rivalled each other. European contact began in 1511 with a Portuguese diplomatic mission to Ayutthaya, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phetchaburi
Phetchaburi ( th, เพชรบุรี, ) or Phet Buri () is a town (''thesaban mueang'') in southern Thailand, capital of Phetchaburi Province. In Thai, Phetchaburi means "city of diamonds" (''buri'' meaning "city" in Sanskrit). It is approximately 160 km south of Bangkok, at the northern end of the Thai peninsula. As of 2005, the town had a population of 26,181 and covers the two ''tambon'' Tha Rap and Khlong Krachaeng. The runs through the middle of the city. The region is mostly flat, save for a single hill (called ''Khao Wang'') on the outskirts of town. The royal palace named |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNA Sequence
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and discovery. Knowledge of DNA sequences has become indispensable for basic biological research, DNA Genographic Projects and in numerous applied fields such as medical diagnosis, biotechnology, forensic biology, virology and biological systematics. Comparing healthy and mutated DNA sequences can diagnose different diseases including various cancers, characterize antibody repertoire, and can be used to guide patient treatment. Having a quick way to sequence DNA allows for faster and more individualized medical care to be administered, and for more organisms to be identified and cataloged. The rapid speed of sequencing attained with modern D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staurois
''Staurois'' is a small genus of minuscule true frogs. Most species in the genus are restricted to Borneo, but two species are from the Philippines.Arifin, U., D. T. Iskandar, D. P. Bickford, R. M. Brown, R. Meier, and S. N. Kutty. (2011). Phylogenetic relationships within the genus Staurois (Anura, Ranidae) based on 16S rRNA sequences. Zootaxa 2744: 39–52 This genus is a quite ancient member of the true frog family, Ranidae. They are typically found in or near rapidly flowing, small rocky streams, and are sometimes known as splash frogs or foot-flagging frogs. The latter name refers to their unusual behavior of conspicuously waving their hindlegs and feet, as a way of signalling other members of the species.Grafe, Preininger, Sztatecsny, Kasah, Dehling, Proksch & Höd (2012). ''Multimodal Communication in a Noisy Environment: A Case Study of the Bornean Rock Frog Staurois parvus.'' PLoS ONE, DOI: 10.1371/journal.pone.0037965 Similar behavior has also been documented in other ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rana Sauteri
''Rana sauteri'' is a species of true frog endemic to Taiwan. It inhabits low-altitude hill forests and the associated streams. It is an endangered species threatened by habitat loss due to agriculture and infrastructure development. Common names recorded for ''Rana sauteri'' include Kanshirei Village frog, Taiwan groove-toed frog, Sauter's brown frog, and Taiwan pseudotorrent frog. Taxonomy ''Rana sauteri'' was first described in 1909 by George Albert Boulenger on the basis of specimens collected on Taiwan by one H. Sauter. Boulenger noted resemblances to '' Rana japonica'' and ''Rana mortenseni'' (now '' Hylarana mortenseni'') and thought the species bridged part of the gap between '' Hylorana'' (now spelled ''Hylarana'') and the ''Rana temporaria'' group of species. In 1920, however, Boulenger placed the species in the subgenus ''Hylorana'' of the genus ''Rana''. In 1991, Fei and colleagues placed it in a new genus ''Pseudorana'' together with ''Rana sangzhiensis'' and ''Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tadpole
A tadpole is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails. As they undergo metamorphosis, they start to develop functional lungs for breathing air, and the diet of tadpoles changes drastically. A few amphibians, such as some members of the frog family Brevicipitidae, undergo direct development i.e., they do not undergo a free-living larval stage as tadpoles instead emerging from eggs as fully formed "froglet" miniatures of the adult morphology. Some other species hatch into tadpoles underneath the skin of the female adult or are kept in a pouch until after metamorphosis. Having no hard skeletons, it might be expected that tadpole fossils would not exist. However, traces of biofilms have been preserved and fossil tadpoles have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
