Juan Manuel Guayasamin
   HOME
*





Juan Manuel Guayasamin
Juan Manuel Guayasamin (born 1974) is an Ecuadorian biologist. He earned his Ph.D. in 2007 from University of Kansas, Department of Ecology and Evolutionary Biology and as of 2017 he is working as professor at Universidad San Francisco de Quito in Ecuador. His research interests include the evolution of glass frogs (Centrolenidae) and direct-developing anurans. His main contributions have been: phylogenetic taxonomy of glassfrogs, description of the variation of skin texture in frogs, description of numerous species of amphibians and reptiles, and a monographic review of all Ecuadorian glassfrogs (60 species). A team led by Juan M. Guayasamin discovered '' Hyalinobatrachium yaku'' in May 2017, a glassfrog with transparent venter. To date (2020), he has described a total of 6 amphibian genera, 55 species of amphibians, and 11 reptiles, including two geckos from the Galápagos Islands. Genera described * Celsiella * Chimerella * Espadarana * Ikakogi ''Ikakogi'' is a genus o ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Ecuador
Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Ekuatur Nunka''), is a country in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean on the west. Ecuador also includes the Galápagos Islands in the Pacific, about west of the mainland. The country's capital and largest city is Quito. The territories of modern-day Ecuador were once home to a variety of Indigenous groups that were gradually incorporated into the Inca Empire during the 15th century. The territory was colonized by Spain during the 16th century, achieving independence in 1820 as part of Gran Colombia, from which it emerged as its own sovereign state in 1830. The legacy of both empires is reflected in Ecuador's ethnically diverse population, with most of its mill ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

University Of Kansas
The University of Kansas (KU) is a public research university with its main campus in Lawrence, Kansas, United States, and several satellite campuses, research and educational centers, medical centers, and classes across the state of Kansas. Two branch campuses are in the Kansas City metropolitan area on the Kansas side: the university's medical school and hospital in Kansas City, Kansas, the Edwards Campus in Overland Park. There are also educational and research sites in Garden City, Hays, Leavenworth, Parsons, and Topeka, an agricultural education center in rural north Douglas County, and branches of the medical school in Salina and Wichita. The university is a member of the Association of American Universities and is classified among "R1: Doctoral Universities – Very high research activity". Founded March 21, 1865, the university was opened in 1866, under a charter granted by the Kansas State Legislature in 1864 and legislation passed in 1863 under the State Cons ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Universidad San Francisco De Quito
Universidad San Francisco de Quito USFQ (informally Universidad San Francisco, or simply USFQ) is a liberal-arts, private university located in Quito, Ecuador. It was the first totally private self-financed university in Ecuador and the first liberal-arts institution in the Andean region.Sobre la USFQ .Universidad San Francisco de Quito @QSTopUniversities . Academically, USFQ ranks as one of the three-top universities (category A) in the ranking of Ecuadorian universities (being the only totally private university to qualify for the highest category), issued by the Ecuadorian Council of Evaluation and Accreditation of High Education ( Consejo Nacional de Evaluación y Acreditación de la Educación Superior CONEA). In 2009, it was ranked first in Ecuador in relation to the number of peer-reviewed scientific publications. The university now enrolls 5,500 students, 4,500 of whom are undergraduates. The university each year has about 100 indigenous students and 1,000 internation ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Glass Frog
The glass frogs belong to the amphibian family Centrolenidae ( order Anura). While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent and translucent, giving the glass frog its common name. The internal viscera, including the heart, liver, and gastrointestinal tract, are visible through the skin. When active their blood makes them visible; when sleeping most of the blood is concealed in the liver, hiding them. Glass frogs are arboreal, living mainly in trees, and only come out for mating season. Their transparency conceals them very effectively when sleeping on a green leaf, as they habitually do. Taxonomy The first described species of Centrolenidae was the "giant" '' Centrolene geckoideum'', named by Marcos Jiménez de la Espada in 1872, based on a specimen collected in northeastern Ecuador. Several species were described in subsequent years by different herpetologists (including G. ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


picture info

Anuran
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail (the tail of tailed frogs is an ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Hyalinobatrachium Yaku
''Hyalinobatrachium yaku'' is a species of frog in the family Centrolenidae. It is found in the Pastaza, Orellana and Napo Provinces of Ecuador. One of the remarkable characteristics of this species is that their belly and some internal organs are transparent leaving the red heart completely exposed through transparent parietal peritoneum and pericardium. The glassfrogs are generally small, ranging from 0.8 to 3 inches (2-7.5 cm) in length. This species can be differentiated from other frogs in the Hyalinobatrachium genus by the row of dark green spots down the middle of its back. It was described, by five researchers namely Juan Manuel Guayasamin, Diego F. Cisneros-Heredia, Ross J. Maynard, Ryan L. Lynch, Jaime Culebras and Paul S. Hamilton first published about the finding on May 12, 2017, in the journal ZooKeys ''ZooKeys'' is a peer-reviewed open access scientific journal covering zoological taxonomy, phylogeny, and biogeography. It was established in 2008 and the ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Celsiella
''Celsiella'' is a small genus of glass frogs endemic to Venezuela. It was established in 2009 and named in honour of Josefa Celsa Señaris, nicknamed "Celsi", a Venezuelan herpetologist who had worked with glass frogs. Description The ventral parietal peritoneum is white anteriorly and transparent posteriorly. The bones are pale green or green. Male ''Celsiella'' call from, and females deposit their eggs on the underside or upper side of leaves. Tentative evidence suggests that males guard their eggs. Taxonomy Monophyly of ''Celsiella'' is strongly supported by genetic data. It is also morphologically distinct from the closely related genus ''Hyalinobatrachium''species of which have completely transparent venters, white liver, and white bones. It was erected in 2009; its species composition has not changed afterwards. Species There are two species: * ''Celsiella revocata ''Celsiella revocata'' is a species of frog in the family Centrolenidae. It is endemic to the Venezuel ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Chimerella
''Chimerella'' is a small genus of glass frogs, family Centrolenidae. They are found on the Amazonian slopes of the Andes in Ecuador and Peru, possibly extending into Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car .... Species There are two species: * '' Chimerella corleone'' Twomey, Delia, and Castroviejo-Fisher, 2014 * '' Chimerella mariaelenae'' (Cisneros-Heredia and McDiarmid, 2006) References Glass frogs Amphibians of South America Amphibian genera Taxa named by José Ayarzagüena Taxa named by Santiago Castroviejo-Fisher {{Centrolenidae-stub ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Espadarana
''Espadarana'' is a genus of glass frogs. They are found in Central America (Honduras, Nicaragua, Costa Rica, Panama) and northern South America (Venezuela, Colombia, and Ecuador). Etymology The generic name ''Espadarana'' honors Marcos Jiménez de la Espada, a Spanish zoologist. Among other things, he described the first centrolenid frog, '' Centrolene geckoideum'' in 1872. Moreover, the Spanish word ''espada'' means "sword", which can be associated with the humeral spines that adult male ''Espadarana'' have. Description The diagnostic characters of ''Espadarana'' include conspicuous humeral spines present in adult males, as hinted in their name. There is moderate webbing between third and fourth fingers. The dorsum is lavender in preserved individuals and may have spots. Internal features include green bones (in live specimens), lobed liver covered by a transparent hepatic peritoneum, whereas the ventral parietal peritoneum is white in its anterior part and transparent in it ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  




Ikakogi
''Ikakogi'' is a genus of frogs in the family Centrolenidae. It has been tentatively placed in the subfamily Centroleninae, although more recent analyses suggest that it is the sister group of the clade Centroleninae+ Hyalinobatrachiinae. Taxonomy Until 2019, the genus was considered to be monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ..., but now contains the following two species: * '' Ikakogi ispacue'' Rada, Dias, Peréz-González, Anganoy-Criollo, Rueda-Solano, Pinto-E., Mejía Quintero, Vargas-Salinas, and Grant, 2019 * '' Ikakogi tayrona'' (Ruiz-Carranza and Lynch, 1991) References {{DEFAULTSORT:Ikakogi Glass frogs Amphibians of South America Amphibians of Colombia Endemic fauna of Colombia Amphibian genera ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Rulyrana
''Rulyrana'' is a small genus of glass frogs. They are found in South America, on the Amazonian slopes of the Andes in Ecuador, Peru, and possibly Bolivia, as well as on the eastern slopes of the Cordillera Central and the western slopes of the Cordillera Oriental in Colombia. Etymology The generic name ''Rulyrana'' honors and who have "contributed enormously to the understanding of centrolenid diversity, biology, and evolution". The name is made up from the two first letters of their surnames in combination with ''rana'' for frog. In addition, "Ruly" is the nickname of Martín Bustamante, who has also contributed to amphibian conservation. Description ''Rulyrana'' have moderate to extensive webbing between the third and fourth fingers. The dorsum is lavender in preserved individuals and may have spots. Internal features include green bones (in live specimens), lobed liver that is covered by a transparent hepatic peritoneum, whereas the ventral parietal peritoneum is white in ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  


Sachatamia
''Sachatamia'' is a small genus of glass frogs. They are found in Central America (Honduras, Nicaragua, Costa Rica, Panama) and northern South America (Colombia and northwestern Ecuador) at altitudes below above sea level. Etymology The generic name ''Sachatamia'' is derived from the Quichua words ''sacha'' for "forest" and ''tamia'' for "rain". This is a reference to the tropical rainforest habitat of these frogs. Description ''Sachatamia'' have moderate to extensive webbing between third and fourth fingers. The dorsum is lavender in preserved individuals and may have spots. Internal features include green bones (in live specimens), lobed liver that is covered by a transparent hepatic peritoneum, whereas the ventral parietal peritoneum is white in its anterior part and transparent in its poster part. The digestive tract is translucent. In terms of osteology, ''Sachatamia'' possess vomerine teeth and quadratojugal bone that is articulating with maxilla. The humeral spines are ...
[...More Info...]      
[...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]