The biotic, or living, factors in the tropical rainforest include hundreds of thousands of species of plants, animals, bacteria and fungi. Rainforests are noteworthy for the incredible abundance of species that live in them, and they are regarded as the most diverse terrestrial habitats on the planet. Because they are the most diverse ecosystem in the world, they have more biotic factors than any other terrestrial habitat.Continue Reading
Rainforests have a plethora of plant species. Most often, the vegetation forms a distinct, layered cross section. Most of the tall trees form a continuous canopy that blocks most of the sunlight from penetrating below. Underneath the canopy, there is an understory layer of small trees, with small herbs and vegetation below the understory. A few trees grow above the level of the canopy, and they make up the emergent layer.
Rainforests are rich in many types of animals, but none are as numerous as the insects. Insects live in all layers of the rainforest, from the tallest emergent trees to the ground floor. Additionally, rainforests are rich in amphibians, especially frogs. Reptiles, mammals and birds are also numerous in the rainforest.
Rainforests are a haven for fungi and bacteria, as their constant warmth and high humidity provide perfect conditions for their growth.Learn more about Earth Science