Guianan savanna Guianan savanna The Guianan savanna (NT0707) is an ecoregion in the south of Venezuela, Guyana and Suriname and the north of Brazil. It is in the Amazon biome. The savanna covers an area of rolling upland plains on the Guiana Shield between the Amazon and Orinoco basins. It includes forested areas, but these are shrinking steadily due to the effect of frequent fires, either accidental or deliberate. The ecoregion includes the Gran Sabana region of Venezuela. The ecoregion includes three large unconnected areas totaling . The main section is in southeast Venezuela, the Brazilian state of Roraima and western Guyana.
Guianan mangroves Guianan mangroves The Guianan mangroves (NT1411) is a coastal ecoregion of southeastern Venezuela, Guyana, Suriname and French Guiana. The mangroves provide an important habitat for migrating birds that winter in the area. Large areas are intact, although they are threatened by destruction of the trees for timber and to make way for agriculture, and from upstream agricultural and industrial pollution. The Guianan mangroves ecoregion extends along the Atlantic coasts of southeastern Venezuela, Guyana, Suriname and French Guiana. It covers an area of about between the deltas of the Orinoco and Oyapock rivers. It includes the Gulf of Paria and the