Guianan piedmont and lowland moist forests
| Guianan piedmont and lowland moist forests (NT0182) | |
|---|---|
| Ecology | |
| Realm | Neotropical |
| Biome | Tropical and subtropical moist broadleaf forests |
| Geography | |
| Area | 231,384 km2 |
| Countries | Venezuela, Brazil |
| Coordinates | 3°06′50″N 62°19′55″W / 3.114°N 62.332°WCoordinates: 3°06′50″N 62°19′55″W / 3.114°N 62.332°W |
| Climate type | Af: equatorial, fully humid |
The Guianan piedmont and lowland moist forests (NT0182) is an ecoregion in the south of Venezuela and the north of Brazil. It is in the Amazon biome. The ecoregion is relatively intact, largely protected by conservation units or indigenous territories, and less threatened by global warming than flatter and more deforested regions.
The Guianan piedmont and lowland moist forests ecoregion is in the south of Venezuela and the north of the Brazilian states of Amazonas and Roraima. It surrounds sections of the Guayanan Highlands moist forests, which in turn surround areas of tepui. It includes or adjoins patches of Rio Negro campinarana. To the north the ecoregion adjoins the Llanos and to the east it adjoins the Guianan moist forests and the Guianan savanna. To the southeast it adjoins the Uatuma-Trombetas moist forests, and to the south and southwest it adjoins the Negro-Branco moist forests.
The Guianan piedmont and lowland moist forests ecoregion is in the neotropic ecozone and the tropical and subtropical moist broadleaf forests biome.
The Köppen climate classification is "Af": equatorial, fully humid. Temperatures are relatively steady throughout the year, slightly cooler in July–September and slightly warmer in April–May. Yearly average temperatures range from a minimum of 18 °C (64 °F) to a maximum of 29 °C (84 °F), with a mean of 23.5 °C (74.3 °F). Average annual rainfall is about 3,600 millimetres (140 in). Monthly rainfall varies from 71.8 millimetres (2.83 in) in January to 532.3 millimetres (20.96 in) in July.
As of 2005 the Brazilian portion of the ecoregion preserved 73.4% of its original vegetation. The tree Albizia glabripetala, a riverside species 10 to 12 metres (33 to 39 ft) high, is found in the ecoregion. The liana Machaerium madeirense, found at elevations between 100 to 500 metres (330 to 1,640 ft), grows in the forests.
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