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Iwokrama Forest
The Iwokrama Forest is a nature reserve of central Guyana located in the heart of the Guiana Shield, one of the four last pristine tropical forests in the world (Congo, New Guinea, and the Amazon rainforest are the others). It represents an important transition zone in rainfall, landforms, human histories and biological communities. At its widest, the area is , and the greatest extent in a north-south direction is 80 km (50 mi). The Georgetown–Lethem Road dissects the forest, traversing about between the northeastern and southern boundaries. The forest lies between 4° and 5° north latitude and 58.5 and 59.5 degrees west longitude. The Iwokrama Forest is bordered to the west by the Pakaraima Mountains and to the east by the isolated highlands scattered through central-east Guyana. It is also bordered by savannahs in the southwest and northeast of Guyana. The Essequibo River forms the eastern boundary. The northern boundary is the Siparuni River The Siparuni R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guyana
Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the Atlantic Ocean to the north, Brazil to the south and southwest, Venezuela to the west, and Suriname to the east. With , Guyana is the third-smallest sovereign state by area in mainland South America after Uruguay and Suriname, and is the second-least populous sovereign state in South America after Suriname; it is also one of the least densely populated countries on Earth. It has a wide variety of natural habitats and very high biodiversity. The region known as " the Guianas" consists of the large shield landmass north of the Amazon River and east of the Orinoco River known as the "land of many waters". Nine indigenous tribes reside in Guyana: the Wai Wai, Macushi, Patamona, Lokono, Kalina, Wapishana, Pemon, Akawaio and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Forest
Tropical forests (a.k.a. jungle) are forested landscapes in tropical regions: ''i.e.'' land areas approximately bounded by the tropic of Cancer and Capricorn, but possibly affected by other factors such as prevailing winds. Some tropical forest types are difficult to categorise. While forests in temperate areas are readily categorised on the basis of tree canopy density, such schemes do not work well in tropical forests. There is no single scheme that defines what a forest is, in tropical regions or elsewhere.Anatoly Shvidenko, Charles Victor Barber, Reidar Persson et al. 2005 " Millennium Ecosystem Assessment." Ecosystems and human wellbeing: a framework for assessment Washington, DC: Island Press Because of these difficulties, information on the extent of tropical forests varies between sources. However, tropical forests are extensive, making up just under half the world's forests. The tropical domain has the largest proportion of the world’s forests (45 percent), follow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural History Of Guyana
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. The word ''nature'' is borrowed from the Old French ''nature'' and is derived from the Latin word ''natura'', or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, ''natura'' is mostly used as the Latin translation of the Greek word ''physis'' (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord. The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Socr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geography Of Guyana
The Geography of Guyana comprises the physical characteristics of the country in Northern South America and part of Caribbean South America, bordering the North Atlantic Ocean, between Suriname and Venezuela, with a land area of approximately 214,969 square km. The country is situated between 1 and 9 north latitude and between 56 and 62 west longitude. With a -long Atlantic coastline on the northeast, Guyana is bounded by Venezuela on the west, Brazil on the west and south, and Suriname on the east. Geographic regions The land comprises three main geographical zones: the coastal plain, the white sand belt and the interior highlands. The coastal plain, which occupies about 5 percent of the country's area, is home to more than 90 percent of its inhabitants. The plain ranges from five to six kilometers wide and extends from the Corentyne River in the east to the Venezuelan border in the northwest. The coastal plain is made up largely of alluvial mud swept out to sea by the Amazo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iwokrama International Centre For Rain Forest Conservation And Development
The Iwokrama International Centre for Rain Forest Conservation and Development is an autonomous non-profit institution established by Guyana and the Commonwealth. It "exists to promote the conservation and the sustainable and equitable use of tropical rain forests in a manner that leads to lasting ecological, economic, and social benefits to the people of Guyana and to the world in general, by undertaking research, training, and the development and dissemination of technologies". It started in 1989 as a gift to the Commonwealth by late president Desmond Hoyte, and the Iwokrama Act signed by late President Cheddi Jagan in 1996 officially established the center. The Center manages the Iwokrama Forest in central Guyana to show how tropical forests can be conserved and sustainably used to provide ecological, social and economic benefits to local, national and international communities. The forest has an area of 3710 km² (1432 mile²). Iwokrama Centre offers compensation in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macushi
The Macushi ( pt, Macuxi) are an indigenous people living in the borderlands of southern Guyana, northern Brazil in the state of Roraima, and in an eastern part of Venezuela. Identification The Macushi are also known as the Macusi, Macussi, Makushi, Makusi, Makuxi, Teueia, and Teweya people. Macushi, as well as the Arecuna, Kamarakoto, and Taurepan are considered sub-groups of Pemon. Language Macushi people speak the Macushi language, a Macushi-Kapon language, which is part of the Carib language family. Some in Brazil also speak Portuguese, while some in Venezuela speak Spanish, and some in Guyana speak English. The Macushi language is written in the Latin script, and the New Testament was translated into the language in 1996. Macushi were hesitant to teach their language to outsiders, thus the language was threatened in the 1950s, as it was considered "slang" compared to the official Portuguese. Housing and lifestyle They live in villages linked together by tracks and paths, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysobalanaceae
Chrysobalanaceae is a family of flowering plants, consisting of trees and shrubs in 27 genera and about 700 species of pantropical distribution with a centre of diversity in the Amazon. Some of the species contain silica in their bodies for rigidity and so the mesophyll often has sclerenchymatous idioblasts. The widespread species '' Chrysobalanus icaco'' produces a plum-like fruit and the plant is commonly known as the coco plum. The family was traditionally placed as subfamily Chrysobalanoideae in the rose family (Rosaceae) or as a family in the rose order and exceptionally as an order in Myrtiflorae by Dahlgren In the phenotypic cladistic analysis of Nandi et al., it branched with Elaeagnaceae as sister group of Polygalaceae, in their molecular cladistic analysis it was in Malpighiales The Malpighiales comprise one of the largest orders of flowering plants, containing about 36 families and more than species, about 7.8% of the eudicots. The order is very diverse, conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecythidaceae
The Lecythidaceae comprise a family of about 20 genera and 250–300 species of woody plants native to tropical South America, Africa (including Madagascar), Asia and Australia. The most important member of the family in world trade is the Brazil nut (''Bertholletia excelsa''), valued for its edible nuts; the paradise nut (''Lecythis'' species) is also eaten. Taxonomy According to the most recent molecular analysis of Lecythidaceae by Mori ''et al.'' (2007), the three subfamilies are: *Foetidioideae (Foetidiaceae) from Madagascar include only '' Foetidia''. *Planchonioideae (including Barringtonia) are restricted to the Old World tropics. *Lecythidoideae (Lecythidaceae) are restricted to the New World tropics. Two other families are sometimes included in Lecythidaceae; the Scytopetalaceae and Napoleonaeaceae are hypothesized as most closely related to Lecythidaceae. The APG II system of 2003 includes genera from the family Scytopetalaceae in the Lecythidaceae, includin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant Anteater
The giant anteater (''Myrmecophaga tridactyla'') is an insectivorous mammal native to Central and South America. It is one of four living species of anteaters, of which it is the largest member. The only extant member of the genus ''Myrmecophaga'', it is classified with sloths in the order Pilosa. This species is mostly terrestrial, in contrast to other living anteaters and sloths, which are arboreal or semiarboreal. The giant anteater is in length, with weights of for males and for females. It is recognizable by its elongated snout, bushy tail, long fore claws, and distinctively colored pelage. The giant anteater is found in multiple habitats, including grassland and rainforest. It forages in open areas and rests in more forested habitats. It feeds primarily on ants and termites, using its fore claws to dig them up and its long, sticky tongue to collect them. Though giant anteaters live in overlapping home ranges, they are mostly solitary except during mother-offspr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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