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Red-handed Howler
The red-handed howler (''Alouatta belzebul'') is a vulnerable species of howler monkey, a type of New World monkey. It is endemic to Brazil, found in the southeastern Amazon and disjunctly in the Atlantic Forest between Rio Grande do Norte and Sergipe. Taxonomy Considerable taxonomic confusion has surrounded this species. Until 2001, most authorities included the Amazon black howler as a subspecies (or simply a taxonomically insignificant variation) of the red-handed howler, Groves, C. (2001). ''Primate Taxonomy.'' Smithsonian Institution Press. though its distinction had already been pointed out much earlier.da Cruz Lima, E. (1945). ''Mammals of Amazônia.'' Vol. 1. Contribuições do Museu Paraense Emílio Goeldi de História Natural e Etnografia. The red-handed howler remained variable in ecology, colour and pattern of the fur, shape of the cranium, and shape of the hyoid bone (of great importance in the voice of the howler monkeys; a likely isolating mechanism between th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cranium
The skull is a bone protective cavity for the brain. The skull is composed of four types of bone i.e., cranial bones, facial bones, ear ossicles and hyoid bone. However two parts are more prominent: the cranium and the mandible. In humans, these two parts are the neurocranium and the viscerocranium ( facial skeleton) that includes the mandible as its largest bone. The skull forms the anterior-most portion of the skeleton and is a product of cephalisation—housing the brain, and several sensory structures such as the eyes, ears, nose, and mouth. In humans these sensory structures are part of the facial skeleton. Functions of the skull include protection of the brain, fixing the distance between the eyes to allow stereoscopic vision, and fixing the position of the ears to enable sound localisation of the direction and distance of sounds. In some animals, such as horned ungulates (mammals with hooves), the skull also has a defensive function by providing the mount (on the fron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear-cut
Clearcutting, clearfelling or clearcut logging is a forestry/ logging practice in which most or all trees in an area are uniformly cut down. Along with shelterwood and seed tree harvests, it is used by foresters to create certain types of forest ecosystems and to promote select species that require an abundance of sunlight or grow in large, even-age stands. Logging companies and forest-worker unions in some countries support the practice for scientific, safety and economic reasons, while detractors consider it a form of deforestation that destroys natural habitats and contributes to climate change. Clearcutting is the most common and economically profitable method of logging. However, it also may create detrimental side effects, such as the loss of topsoil, the costs of which are intensely debated by economic, environmental and other interests. In addition to the purpose of harvesting wood, clearcutting is used to create land for farming. Ultimately, the effects of clearcutt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belém–Brasília Highway
The Belém–Brasília Highway (in Portuguese: ''Rodovia Belém–Brasília'') is a set of portions of six federal highways of Brazil, of which each portion contributes to the function of connecting the Atlantic port city of Belém in the northern state of Pará and the Brazilian Federal District Brasília in the southern interior. The Belém–Brasília Highway designation applies (between Belém and each respective city) to the following routes: * BR-316 (Santa Maria do Pará), * BR-308 (Santa Maria do Pará), and * BR-010 ( Estreito). It also applies to * BR-226 between Porto Franco and Wanderlândia, * BR-153 thence to and from Anápolis, and * BR-060 thence to and from Brasília. In each case, the route in question extends beyond one or both of the cities that demarcate the respective stretch of the Belém–Brasília Highway, while the stretch(es) beyond lack that designation. History The Belém–Brasília Highway was the first road built through the central and the midd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trans-Amazonian Highway
The Trans-Amazonian Highway (official designation BR-230, official name Rodovia Transamazônica), was introduced on September 27, 1972. It is 4,000 km long, making it the third longest highway in Brazil. It runs through the Amazon forest and the Brazilian states of Paraíba, Ceará, Piauí, Maranhão, Tocantins, Pará and Amazonas, from the proximities of Saboeiro up until the town of Lábrea. History The project was started by the military dictatorship that was in power from 1964 to 1985 out of their perceived need to guarantee control over the remote regions while encouraging economic engagement with the natural resources in the region. The highway was intended to integrate these regions with the rest of the country, and with Colombia, Peru and Ecuador. Another main goal of the project was to alleviate the effects of the drought affecting the Northeast region of the country by providing a route to largely empty land in the middle of the rainforest, which could be settled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alouatta Belzebul Red-handed Howler Paraiba - Brazil
Howler monkeys (genus ''Alouatta'', monotypic in subfamily Alouattinae) are the most widespread primate genus in the Neotropics and are among the largest of the platyrrhines along with the muriquis (''Brachyteles''), the spider monkeys (''Ateles'') and woolly monkeys (''Lagotrix''). These monkeys are native to South and Central American forests. They are famous for their loud howls, which can travel more than a mile through dense rain forest. Fifteen species are recognized. Previously classified in the family Cebidae, they are now placed in the family Atelidae. They are primarily folivores but also significant frugivores, acting as seed dispersal agents through their digestive system and their locomotion. Threats include human predation, habitat destruction, and capture for pets or zoo animals. Classification * ''A. palliata'' group ** Coiba Island howler, ''Alouatta coibensis'' *** ''Alouatta coibensis coibensis'' *** Azuero howler, ''Alouatta coibensis trabeata'' ** Mantled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canopy (biology)
In biology, the canopy is the aboveground portion of a plant cropping or crop, formed by the collection of individual plant crowns. In forest ecology, canopy also refers to the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms ( epiphytes, lianas, arboreal animals, etc.). The communities that inhabit the canopy layer are thought to be involved in maintaining forest diversity, resilience, and functioning. Sometimes the term canopy is used to refer to the extent of the outer layer of leaves of an individual tree or group of trees. Shade trees normally have a dense canopy that blocks light from lower growing plants. Observation Early observations of canopies were made from the ground using binoculars or by examining fallen material. Researchers would sometimes erroneously rely on extrapolation by using more reachable samples taken from the understory. In some cases, they would use unconventional methods such as chairs susp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gestation Period
In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a fertilized zygote implants in the female's uterus, and ends once it leaves the uterus. Fertilization and implantation During copulation, the male inseminates the female. The spermatozoon fertilizes an ovum or various ova in the uterus or fallopian tubes, and this results in one or multiple zygotes. Sometimes, a zygote can be created by humans outside of the animal's body in the artificial process of in-vitro fertilization. After fertilization, the newly formed zygote then begins to divide through mitosis, forming an embryo, which implants in the female's endometrium. At this time, the embryo usually consists of 50 cells. Development After implantation A blastocele is a small cavity on the center of the embryo, and the developing embryonary cells will grow around it. Then, a flat layer cell forms on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Howler (other)
The red howlers are five species of howler monkeys that used to be considered conspecific: * Colombian red howler or Venezuelan red howler (''Alouatta seniculus'') – northwestern South America * Bolivian red howler (''Alouatta sara'') – Santa Cruz Department, Bolivia * Guyanan red howler The Guyanan red howler (''Alouatta macconnelli'') is a species of howler monkey, a type of New World monkey, native to Suriname, Guyana, Trinidad, French Guiana, Venezuela and Brazil Brazil ( pt, Brasil; ), officially the Federative Republ ... (''Alouatta macconnelli'') – northeastern South America * Juruá red howler (''Alouatta juara'') – southeastern Amazon basin * Purus red howler (''Alouatta puruensis'') – southeastern Amazon basin Folivores Primates of South America Primates of Central America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maranhão Red-handed Howler
The Maranhão red-handed howler (''Alouatta ululata'') is an endangered species of howler monkey endemic to forests (for example Babaçu forests) in the northeastern Brazilian states of Ceará, Maranhão and Piauí. It was previously thought to be a subspecies of the red-handed howler, but unlike that species, the Maranhão red-handed howler is strongly sexually dichromatic Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most ani ....Gregorin, R. (2006). Taxonomia e variação geográfica das espécies do gênero Alouatta Lacépède (Primates, Atelidae) no Brasil.' Rev. Bras. Zool. 23(1). References Maranhão red-handed howler Mammals of Brazil Endemic fauna of Brazil Maranhão red-handed howler Taxa named by Daniel Giraud Elliot {{newworld-monkey-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spix's Red-handed Howler
Spix's red-handed howler (''Alouatta discolor'') is a species of Howler monkey native to the southeastern Amazon in Brazil. It is threatened by deforestation and hunting. Taxonomy The species was previously considered a subspecies of the red-handed howler, but it is now treated as a separate species. Description Spix's red-handed howler has a similar appearance to the red-handed howler, but it has a yellowish-brown to reddish-brown back. Males weigh about 7.2 kg, females about 5.5 kg. Distribution and habitat The species is endemic to central Brazil, specifically along the southeastern Amazon River in the State of Pará. It occurs mainly in the interfluvial land area between four rivers, Tapajós, Juruena, Xingú and Irirí. The westernmost limit of native habitat lies on the right bank of the Tapajós River and Juruena River and stretches east to the banks of the Xingú River and Irirí River. This strip of land extends northward to Forte Curupá ( Gurupá), Bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alouatta
Howler monkeys (genus ''Alouatta'', monotypic in subfamily Alouattinae) are the most widespread primate genus in the Neotropics and are among the largest of the platyrrhines along with the muriquis (''Brachyteles''), the spider monkeys (''Ateles'') and woolly monkeys (''Lagotrix''). These monkeys are native to South and Central American forests. They are famous for their loud howls, which can travel more than a mile through dense rain forest. Fifteen species are recognized. Previously classified in the family Cebidae, they are now placed in the family Atelidae. They are primarily folivores but also significant frugivores, acting as seed dispersal agents through their digestive system and their locomotion. Threats include human predation, habitat destruction, and capture for pets or zoo animals. Classification * ''A. palliata'' group ** Coiba Island howler, ''Alouatta coibensis'' *** ''Alouatta coibensis coibensis'' *** Azuero howler, ''Alouatta coibensis trabeata'' ** Mantl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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