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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]
A Sapele tree in the Republic of the Congo. The Congolian rainforest is the world's second-largest tropical forest, after the Amazon rainforest.It covers over 500,000,000 acres (2,000,000 km 2) across six countries and contains a quarter of the world's remaining tropical forest.
Tropical rainforests have been called the "jewels of the Earth" and the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there. [2] Rainforests as well as endemic rainforest species are rapidly disappearing due to deforestation, the resulting habitat loss and pollution of the atmosphere. [3]
For comparison, a tropical rainforest biome may contain thousands of tree species, but this is not to say mangrove forests lack diversity. Though the trees are few in species, the ecosystem that these trees create provides a habitat for a great variety of other species, including as many as 174 species of marine megafauna .
The Hawaiian tropical rainforests are a tropical moist broadleaf forest ecoregion in the Hawaiian Islands. They cover an area of 6,700 km 2 (2,600 sq mi) in the windward lowlands and montane regions of the islands. [1] Coastal mesic forests are found at elevations from sea level to 300 m (980 ft). [2]
Within an ecological food chain, consumers are categorized into primary consumers, secondary consumers, and tertiary consumers. [3] Primary consumers are herbivores, feeding on plants or algae. Caterpillars, insects, grasshoppers, termites and hummingbirds are all examples of primary consumers because they only eat autotrophs (plants).
Building blocks for tropical rainforest conservation include ecotourism and rehabilitation. Reforestation and restoration are common practices in certain areas to try to increase tropical rainforest density. By communicating with the local people living in, and around, the rainforest, conservationists can learn more about what might allow them ...
Most tropical and subtropical coniferous forest ecoregions are found in the Nearctic and Neotropical realms, from Mexico to Nicaragua and on the Greater Antilles, Bahamas, and Bermuda. Other tropical and subtropical coniferous forests ecoregions occur in Asia. Mexico harbors the world's richest and most complex subtropical coniferous forests. [2]