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Primate Foraging
Primate species exhibit a diverse array of foraging strategies that are shaped by their ecological environments, social structures, and nutritional needs. These strategies are crucial for their survival and reproductive success, as they navigate complex environments to locate and acquire food. The foraging behaviors of primates are influenced by spatial, temporal, and social factors, and they often employ cognitive skills to optimize their food acquisition. Spatial foraging Primates often use mental maps to remember the location of food resources, which allows them to plan goal-oriented paths to these resources. This spatial memory is crucial in environments where food availability is seasonal and unpredictable. The ability to integrate spatial and temporal information is less understood, but it is suggested that primates may learn temporal patterns of food availability to enhance foraging efficiency. Optimal foraging Primate foraging strategies are heavily influenced by t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blond Capuchin Monkey Foraging Sugarcane
Blond () or blonde (), also referred to as fair hair, is a human hair color characterized by low levels of eumelanin, the dark pigment. The resultant visible hue depends on various factors, but always has some yellowish color. The color can be from the very pale blond (caused by a patchy, scarce distribution of pigment) to reddish "strawberry" blond or golden-brownish ("sandy") blond colors (the latter with more eumelanin). Occasionally, the state of being blond, and specifically the occurrence of blond traits in a predominantly dark or colored population are referred to as blondism. Because hair color tends to darken with age, natural blond hair is significantly less common in adulthood. Naturally-occurring blond hair is primarily found in people living in or descended from people who lived in Northern Europe, and may have evolved alongside the development of light skin that enables more efficient synthesis of vitamin D, due to northern Europe's lower levels of sunlight. Blond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-fronted Titi Monkey
The black-fronted titi monkey (''Callicebus nigrifrons'') is a species of titi, a type of New World monkey. The black-fronted titi is a small diurnal primate. The body of this primate is covered in grey to brown fur with black fur concentrated around the face, the tail is slightly orange in color. Body weight ranges from and the head-body length is around . This species does not exhibit sexual dimorphism. Members of this species can live up to 12 years of age in captivity. Habitat and distribution The black-fronted titi is endemic to the Atlantic forest region of Brazil and has a home range averaging . The black-fronted titi is arboreal and prefers the middle to upper canopy of the forest. However, it will move to the forest floor at times to forage, travel, and play. Play behavior on the forest floor has been documented between black-fronted titis and marmosets in Brazil. Ecology Diet The diet of the black-fronted titi is frugivorous and they forage in dense vegetatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Howler
The black howler (''Alouatta caraya'') or black-and-gold howler, is among the largest New World monkeys and a member of the ''Alouatta'' genus. The black howler is distributed in areas of South America such as Paraguay, southern Brazil, eastern Bolivia, northern Argentina, and Uruguay. This species is sexually dimorphic, with adult males having entirely black fur and adult females and babies of both sexes having an overall golden colouring; which emphasizes black-and-gold in the name. The IUCN Red List has classed the black howler as Near Threatened as a result of a recent population reduction due to a variety of human-caused factors. Taxonomy The black howler is one of nine species of the ''Alouatta'' genus that have been identified and is in the Atelidae family. Because of this species' sexual dimorphism, the taxon for the black howler has been distinguished. * ''Alouatta caraya'' * '' Alouatta pigra'' * ''Alouatta seniculus'' * ''Alouatta arctoidea'' * ''Alouatta sara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propithecus Diadema
The diademed sifaka (''Propithecus diadema''), or diademed simpona, is an endangered species of sifaka, one of the lemurs endemic to certain rainforests in eastern Madagascar. Along with the indri, this species is one of the two largest living lemurs, with an average weight of 6.5 kg and a total adult length of approximately 105 centimetres (41 inches), half of which is its tail. Russell Mittermeier, one of the contemporary authorities on lemurs, describes the diademed sifaka as "one of the most colorful and attractive of all the lemurs", having a long and silky coat. ''P. diadema'' is also known by the Malagasy names simpona, simpony and ankomba joby. The term "diademed sifaka" is also used as a group species designation formerly encompassing four distinct subspecies. Description ''P. diadema'' is readily distinguished from all the other lemur species by its characteristic markings and large physical size. Its entire coat is moderately long, silky and luxuriant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Brown Lemur
The common brown lemur (''Eulemur fulvus'') is a species of lemur in the family Lemuridae. It is found in Madagascar and has been introduced to Mayotte. Taxonomy Five additional currently recognized species of lemur were until 2001 considered subspecies of ''E. fulvus''. These are: * White-fronted brown lemur, ''E. albifrons'' * Gray-headed lemur, ''E. cinereiceps'' * Collared brown lemur, ''E. collaris'' * Red-fronted brown lemur, ''E. rufus'' * Sanford's brown lemur, ''E. sanfordi'' However, a number of zoologists believe that ''E. albifrons'' and ''E. rufus'' should continue to be considered subspecies of ''E. fulvus''. Physical description The common brown lemur has a total length of , including of tail. Weight ranges from . Common brown lemurs are unique amongst ''Eulemur'' in that they exhibit little-to-no sexual dichromatism: in both males and females, the face, muzzle and crown are dark gray or black, with white or tan "cheeks" of varying thickness. Some individuals m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wedge-capped Capuchin
The wedge-capped capuchin or Guianan weeper capuchin (''Cebus olivaceus'') is a capuchin monkey from South America. It is found in northern Brazil, Guyana and Venezuela. ''Cebus olivaceus'' is known to dwell in tall, primary forest and travel over long distances during the day. These primates are medium-sized monkeys with distinctive "wedge cap" markings on their head and slightly longer limbs than other capuchins for jumping through the forest canopy. Similar to other capuchin monkeys, the diet of wedge-capped capuchin primarily consists of fruits, invertebrates, other plant parts, and on rare occasions small vertebrates. They have also been known to rub millipedes against their fur, especially in the rainy seasons, as a potential means of mosquito repellent. ''Cebus olivaceus'' is a polygamous species that lives in groups of anywhere from 5-30 individuals with female-biased sex ratios. The group is organized according to a pre-determined hierarchal system of dominance for both ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombian White-faced Capuchin
The Colombian white-faced capuchin (''Cebus capucinus''), also known as the Colombian white-headed capuchin or Colombian white-throated capuchin, is a medium-sized New World monkey of the family Cebidae, subfamily Cebinae. It is native to the extreme eastern portion of Panama and the extreme north-western portion of South America in western Colombia and northwestern Ecuador. The Colombian white-faced capuchin was one of the many species originally described by Carl Linnaeus in his landmark 1758 10th edition of ''Systema Naturae''. It is a member of the family Cebidae, the family of New World monkeys containing capuchin monkeys and squirrel monkeys. It is the type species for the genus '' Cebus'', the genus that includes all the capuchin monkeys. Until the 21st century, the Panamanian white-faced capuchin, ''Cebus imitator'', was considered conspecific with the Colombian white-faced capuchin, as the subspecies ''C. capucinus imitator''. Some primatologists continue to cons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarangire 2012 05 27 2030 (7468494478)
— River mouth The Tarangire River is a perennial river located in central Manyara Region in the eastern branch of the East African Rift Valley, within northern Tanzania. Course The headwaters of the Tarangire River are in the highlands and escarpments of Babati District of the Manyara Region and Kondoa District of the Dodoma Region, primarily the Irangi Hills and Irangi Escarpment in Kondoa District. The river rises in the Wasi Highlands, falls down the eastern Kondoa Escarpment. It flows east to Chubi where it then turns north to flow through Tarangire National Park. It then turns west and then south, before terminating at its river mouth on Lake Burunge. Ecology Much of the Tarangire River headwaters in the Irangi Hills headwaters area is forested with Miombo woodland habitat trees and lower plants, that are designated for protection within the Salanka, Bereko, and Isabe Forest Reserves. Deforestation for agriculture and degradation of forests in the Irangi Hil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marginal Value Theorem
The marginal value theorem (MVT) is an optimality model that usually describes the behavior of an optimally foraging individual in a system where resources (often food) are located in discrete patches separated by areas with no resources. Due to the resource-free space, animals must spend time traveling between patches. The MVT can also be applied to other situations in which organisms face diminishing returns. The MVT was first proposed by Eric Charnov in 1976. In his original formulation: "The predator should leave the patch it is presently in when the marginal capture rate in the patch drops to the average capture rate for the habitat." Charnov, E. L. 1976. Optimal foraging: the marginal value theorem. Theoretical Population Biology 9:129–136 Definition All animals must forage for food in order to meet their energetic needs, but doing so is energetically costly. It is assumed that evolution by natural selection results in animals utilizing the most economic and efficient str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Tool Use By A Capuchin Monkey
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects. Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed when magma cools in the Earth's crust, or lava cools on the ground surface or the seabed. Sedimentary rocks are formed by diagenesis and lithification of sediments, which in turn are formed by the weathering, transport, and deposition of existing rocks. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
