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Amazon rainforest in Colombia Aerial view of the Amazon rainforest, near Manaus The rainforest likely formed during the Eocene era (from 56 million years to 33.9 million years ago). It appeared following a global reduction of tropical temperatures when the Atlantic Ocean had widened sufficiently to provide a warm, moist climate to the Amazon basin.
What is a rainforest; National Geographic: Rain forest; Tropical rainforests This page was last edited on 26 January 2025, at 13:00 (UTC). Text is available under ...
The Amazon biome has an area of 6,700,000 square kilometres (2,600,000 sq mi). [2] [a] The biome roughly corresponds to the Amazon basin, but excludes areas of the Andes to the west and cerrado (savannah) to the south, and includes lands to the northeast extending to the Atlantic ocean with similar vegetation to the Amazon basin. [2]
In northern Idaho rainforest patches along the Clearwater River, a mean annual temperature of 5.4°C has been measured. [8] In British Columbian Inland rainforest areas, the mean annual temperature ranges from 2.7 to 4.5°C. In the coldest months, the mean temperature of these region lies between -8 and -9.5°C. [9]
Amazon River rain forest in Peru. Tropical rainforests are hot and wet. Mean monthly temperatures exceed 18 °C (64 °F) during all months of the year. [4] Average annual rainfall is no less than 1,680 mm (66 in) and can exceed 10 m (390 in) although it typically lies between 1,750 mm (69 in) and 3,000 mm (120 in). [5]
The Amazon River begins in the Andes Mountains at the west of the basin with its main tributary the Marañón River and Apurimac River in Peru.The highest point in the watershed of the Amazon is the second biggest peak of Yerupajá at 6,635 metres (21,768 ft).
The Maya Forest is a tropical moist broadleaf forest that covers much of the Yucatan Peninsula, thereby encompassing Belize, northern Guatemala, and southeastern Mexico.It is deemed the second largest tropical rainforest in the Americas, after the Amazon, with an area of circa 15 million hectares (150,000 km 2), of which at least 3 million (30,000 km 2) lie within protected areas.
Moist broadleaf forest in Mudumalai National Park Congolian rainforest dominated by Gilbertiodendron dewevrei, near Isiro. TSMF is generally found in large, discontinuous patches centered on the equatorial belt and between the Tropic of Cancer and Tropic of Capricorn. TSMF are characterized by low variability in annual temperature and high ...