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Collared Titi
The collared titi monkey (''Cheracebus torquatus'') is a species of titi, a type of New World monkey. It is endemic to northern Brazil. Taxonomy At the end of the 1980s the genus ''Callicebus'' was revised from the Hershkovitz concept of three species to thirteen neotropical species, with the collared titi, ''Callicebus torquatus'', having four subspecies. In 2001 Colin Groves elevated one of the subspecies, the Colombian black-handed titi, ''C. t. medemi'', to ''Callicebus medemi'' and a year later Van Roosmalen ''et al.'' elevated the remaining subspecies to species. These last changes were made with few arguments to support the changes and were apparently influenced by the increasing use of the so-called phylogenetic species concept of Cracraft, which seeks to define species as the "smallest diagnosable cluster of individual organisms within which there is a parental pattern of ancestry and descent." The species complex was updated to ''Cheracebus'' in 2016. The recent disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Centurius Hoffmannsegg
Johann Centurius Hoffmann Graf von Hoffmannsegg (23 August 1766 – 13 December 1849) was a German botanist, entomologist and ornithologist. Hoffmannsegg was born at Rammenau and studied at Leipzig and Göttingen. He travelled through Europe acquiring vast collections of plants and animals. He visited Hungary, Austria and Italy in 1795–1796 and Portugal from 1797 to 1801. He sent his collections to Johann Karl Wilhelm Illiger, then in Brunswick, so that he could study them. Hoffmannsegg worked in Berlin from 1804 to 1816, and was elected a member of the Academy of Science of the city in 1815. He was the founder of the zoological museum of Berlin in 1809. Hoffmannsegg proposed Illiger for the position of curator, and all the Hoffmannsegg's collections were then transferred to Berlin. The legume genus ''Hoffmannseggia ''Hoffmannseggia'' is a genus of flowering plants in the pea family, Fabaceae, known generally as rushpeas. These are pod-bearing herbs and subshrub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karyotype
A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is discerned by determining the chromosome complement of an individual, including the number of chromosomes and any abnormalities. A karyogram or idiogram is a graphical depiction of a karyotype, wherein chromosomes are organized in pairs, ordered by size and position of centromere for chromosomes of the same size. Karyotyping generally combines light microscopy and photography, and results in a photomicrographic (or simply micrographic) karyogram. In contrast, a schematic karyogram is a designed graphic representation of a karyotype. In schematic karyograms, just one of the sister chromatids of each chromosome is generally shown for brevity, and in reality they are generally so close together that they look as one on photomicrographs as well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Of Brazil
Brazil has the largest mammal diversity in the world, with more than 600 described species and more likely to be discovered. According to the International Union for Conservation of Nature, 66 of these species are endangered, and 40% of the threatened taxa belong to the primate group. 658 species are listed. The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature: Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of near threatened and least concern categories: Infraclass: Metatheria Order: Didelphimorphia * Family: Caluromyidae ** Genus: '' Caluromys'' *** Brown-eared woolly opossum, ''C. lanatus'' LC *** Bare-tailed woolly opossum, ''C. philander'' LC * Family: Didelphidae ** Genus: ''Caluromysiops'' *** Black-shouldered opossum, ''Caluromysiops irrupta'' LC ** Genus: ''Glironia'' *** Bushy-tailed opossum, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheracebus
''Cheracebus'' is one of three genera of titi monkeys. Monkeys in this genus, particularly the type species ''Cheracebus lugens'', are sometimes referred to as widow titi monkeys. Historically, titis were monogeneric, comprising only the genus ''Callicebus'' Thomas, 1903. Owing to the great diversity found across titi monkey species, a new genus-level taxonomy was recently proposed that recognises three genera within the subfamily Callicebinae; ''Cheracebus'' Byrne et al., 2016 for the species of the ''torquatus'' group (Widow titis); ''Plecturocebus'' Byrne et al., 2016 for the Amazonian and Chaco titis of the ''moloch'' and ''donacophilus'' groups; and ''Callicebus'' Thomas, 1903 ''sensu stricto'', for species of the Atlantic Forest ''personatus'' group. ''Cheracebus'' is derived from the Latin ''chera'' (from the Greek χηρα) meaning widow and ''cebus'' (from the Greek kebos) meaning long tailed monkey. Species There are 5 species in this genus: * Lucifer titi monkey, ''Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples In Colombia
Indigenous peoples of Colombia, are the ethnic groups who have inhabited Colombia since before the European colonization, in the early 16th century. According to the last census, they comprise 4.4% of the country's population, belonging to 115 different tribes.https://www.dane.gov.co/files/investigaciones/boletines/grupos-etnicos/presentacion-grupos-etnicos-2019.pdf Approximately two thirds of the Indigenous peoples of Colombia live in La Guajira, Cauca, Nariño, Cordoba and Sucre Departments. Amazon Basin, a sparsely populated region, is home to over 70 different Indigenous ethnic groups. History Some theories claim the earliest human habitation of South America to be as early as 43,000 BC, but the current scholarly consensus among archaeologists is that human habitation in South America only dates back to around 15,000 BC at the earliest. Anthropologist Tom Dillehay dates the earliest hunter-gatherer cultures on the continent at almost 10,000 BC, during the late Pleistoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coppery Titi
The coppery titi monkey (''Plecturocebus cupreus''), or red titi monkey, is a species of titi monkey, a type of New World monkey, from South America. They are found in the Amazon of Brazil and Peru, and perhaps northern Bolivia. It was described as ''Callithrix cupreus'' in 1823. These monkeys have a lifespan of a little over 20 years. These monkeys eat certain fruits, insects, and plants. They live in monogamous pairs with interesting ways for vocalizing and protecting themselves from predators. Location, habitat and activity Coppery titis typically inhabit lowland tropical and sub-tropical forests in areas that flood seasonally. They can also be found in forest understory habitats, young forests, swamp edges, and bamboo thickets. Their populations are mainly found west of the Rio Madeira in Brazil, around the Rio Huallaga in Peru, within the upper Rio Madre de Dios basin in Peru and Bolivia, near the northern Rio-Maranon-Amazonas area, around the Eastern Cordillera in Peru and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Várzea Forest
A várzea forest is a seasonal floodplain forest inundated by whitewater rivers that occurs in the Amazon biome. Until the late 1970s, the definition was less clear and várzea was often used for all periodically flooded Amazonian forests. Although sometimes described as consisting only of forest, várzea also contains more open, seasonally flooded habitats such as grasslands, including floating meadows. Description Along the Amazon River and many of its tributaries, high annual rainfall that occurs mostly within a rainy season results in extensive seasonal flooding of areas from stream and river discharge. The result is a rise in water level, with nutrient rich waters. The Iquitos várzea ecoregion covers the margins of the upper Amazon and its tributaries. Further down are the Purus várzea in the middle Amazon, the Monte Alegre várzea and Gurupa várzea on the lower Amazon and the Marajó várzea at the mouth of the Amazon. The Marajó várzea is affected by both freshwate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybridization (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 Heterosis, 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 reproductive isolation, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manacapuru
Manacapuru (''Munychapur'') is a municipality located in the Brazilian state of Amazonas. Population The population of Manacapuru was 98,502 (2020) and its area is 7,329 km². The city is one of the biggest in the state. It is located about upstream (west) from Manaus, at the point where the Manacapuru River flows into the Solimões River. Main sights The municipality contains about 19% of the Rio Negro Right Bank Environmental Protection Area, a sustainable use conservation unit that controls use of an area of Amazon rainforest along the Rio Negro above the junction with the Solimões River. It also contains about 4% of the Rio Negro Sustainable Development Reserve, a sustainable use conservation unit created in 2008 in an effort to stop deforestation in the area, which is threatened due to its proximity to Manaus. Notable people * Marcelinho – Footballer, playing for the Bulgarian Bulgarian may refer to: * Something of, from, or related to the country of Bulgar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Negro (Amazon)
The Rio Negro ( pt, Rio Negro, br ; es, Río Negro} "''Black River''"), or Guainía as it is known in its upper part, is the largest left tributary of the Amazon River (accounting for about 14% of the water in the Amazon basin), the largest blackwater river in the world, and one of the world's ten largest rivers by average discharge. Geography Upper course The source of the Rio Negro lies in Colombia, in the Department of Guainía where the river is known as the ''Guainía River''. The young river generally flows in an east-northeasterly direction through the Puinawai National Reserve, passing several small indigenous settlements on its way, such as Cuarinuma, Brujas, Santa Rosa and Tabaquén. After roughly 400 km the river starts forming the border between Colombia's Department of Guainía and Venezuela's Amazonas State. After passing the Colombian community of Tonina and Macanal the river turns Southwest. Maroa is the first Venezuelan town the river passes. 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaupés River
Vaupés River (Uaupés River) is a tributary of the Rio Negro in South America. It rises in the Guaviare Department of Colombia, flowing east through Guaviare and Vaupés Departments. It forms part of the international border between the Vaupés department of Colombia and the Amazonas state of Brazil. On the border it merges with the Papurí River and becomes known as the Uaupés. In 1847 an explorer saw a rapid which hurled its waves in the air, "as if great subaqueous explosions were taking place." The river continues on east through the Alto Rio Negro Indigenous Territory until it flows into the Rio Negro at São Joaquim, Amazonas. Vaupés is a blackwater river A blackwater river is a type of river with a slow-moving channel flowing through forested swamps or wetlands. As vegetation decays, tannins leach into the water, making a transparent, acidic water that is darkly stained, resembling black te .... See also * List of rivers of Amazonas References External li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apaporis River
The Apaporis River is a river of the Vaupés Department, Colombia. It is a tributary of the Caquetá or Japurá River. In the last stretch before the river joins the Caquetá it forms part of the boundary between Colombia and Brazil. See also * List of rivers of Colombia *List of rivers of Brazil This is a list of rivers of Brazil. Alphabetical list of rivers in Brazil A–C * Acari River (Rio de Janeiro) * Acari River (Roraima) * Acauã River * Acre River * Açu River * Açuã River * Acurauá River * Acuriá River * Adela ... References Rivers of Colombia Rivers of Brazil International rivers of South America Brazil–Colombia border Border rivers {{Colombia-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
