The Guyana Ecosystem

Green anacondas, the world's largest snake, inhabit Guyana's rainforests.
••• Tom Brakefield/Stockbyte/Getty Images

Guyana is located on the northeastern coast of South America, bordered by Brazil on the south, Venezuela on the west and Suriname on the east. A former British colony, Guyana gained independence in 1966. The narrow coastal strip bordering the Atlantic Ocean holds 90 percent of the country's population, with 80 percent of the interior high plateaus and mountains occupied by mostly pristine tropical rainforest. Other ecosystems include swamps and wetlands, savanna, and several types of forests, resulting in a high level of biodiversity and unique endemic animals and plants.

Tropical Forest

More than 6,500 known species of plants inhabit the tropical rainforest, half of them endemic, or living only in Guyana. In the center of the country is the Iwokrama International Centre for Rainforest Conservation and Development, containing about 1,400 square miles of untouched rainforest set aside for research. It is managed under an agreement with a British private equity firm that purchased the rights to its environmental services. The rainforest contains at least 650 species of birds. Mammals such as jaguar, sloths, giant armadillos and capuchin monkeys inhabit the forests. Plants include orchids, bromeliads, tropical flowering trees and Guyana's national flower, the Amazonian water lily.

Wetlands

The low-lying coastal areas of about 5,000 square miles contain mangrove forests, swamps and much of the cultivated lands. Mangrove forests were degraded due to logging and erosion, but the government is mounting a restoration project in concert with the European Union. Mangrove forests are home to manatees, scarlet ibis, spectacled caiman, shrimp, crabs and fish. Sandy beaches are nesting sites for sea turtles. Swamps occur in a line between the coastal plain and the white sandy interior hills.

Savannahs

Interior savannas occur in the northeast along the Berbice River and the Rupununi Savanna in the south. The Rupununi receives about 70 inches of rain annually, mostly between May through August, when most of the land floods. Grass grows during the dry season. The Rupununi is rich in plant and animal life, with about 500 species of birds, 120 kinds of reptiles and amphibians, 105 species of mammals and 1,500 species of plants. The rainy season has heightened activity for birds, snakes, frogs and butterflies. Many orchids also bloom then. During the dry season, caiman, capybara, and otters are prominent.

Other Forests

Besides the tropical rainforest ecosystem, Guyana contains dry evergreen forests and montane forests, also called cloud forests. Dry evergreen forests grow in the leached white sand belt located from the Pakaraima escarpment and through central Guyana. More than 300 species of birds live here, including tanagers, owls, nocturnal potoos and finches. Montane forests include sub-montane forests growing between 1,640 and 5,000 feet, as well as montane forests above 1,500 meters. Some distinctive animals of cloud forests include the bright orange Guianian cock-of-the-rock, the harpy eagle and the olingo, a raccoon relative.

Related Articles

Facts on the Amazon Rainforest for Kids
Plants That Live in the Waters of the Amazon Rivers
Ecosystems of Bangladesh
Plants and Animals in the Netherlands
Plants & Animals That Are Native to Colombia
Plants & Animals in Honduras
Animals of the Bamboo Forest
Plants That Live in the Waters of the Amazon Rivers
Endangered Plants in Malaysia
Facts About Animals of West Africa
Endangered Plants in the Amazon Rain Forest
The Biome and Ecosystem of the Burrowing Owl
Endangered Plants of the Philippines
What Are the Native Plants of Venezuela?
Dominant Plants in a Tropical Rainforest
Plants & Animals in Deciduous Forests
Animals in the Tropical Desert
Degradation of the Ecosystem in the Philippines
Human Influences on the Temperate Rainforest
Taiheiyo Evergreen Forest Animals

Dont Go!

We Have More Great Sciencing Articles!