Tropical Rainforest

By: Mary A., Cassie T., and Ian F.


In the tropical rainforest, days are usually rainy. It gets heavy rainfall all year round. The heat here is also year round.Most of the tropical rainforests are around the equator between the Tropic of Cancer and the Tropic of Capricorn. Also, the forests are very dense with tall trees in the canopy, and small bushes on the ground. Tropical Rainforests are found on the windward side (the side from which direction the wind comes from) of mountains. Tropical rainforests may vary between rainforests in the Central Amazon with tall, 300 year old trees, and rainforests in which trees only reach near 70 years of age. There are five main regions where tropical rainforests can be found. They are tropical areas in the Americas, Africa, Southeast Asia, Madagascar and New Guinea. The organisms in each of these regions are different from the other regions in a unique way.
Tropical Rainforests
Tropical Rainforests

The Five Kingdoms

There are many different organisms in the tropical rainforest. In the Moneran kingdom, very little bacteria and cyanobacteria are known.
Some types of bacteria are; Agrobacterium tumefaciens, Beijerinckii, Klebsella, and Azotobacter. Some examples of cyanobacteria are Nostoc, Scytonema, and Stigonema.

There are many organisms from the Protist kingdom in the Tropical Rainforest too. Some of the biome's protozoans are; Flagellites, Plasmodium,and Thallasiosira. Bluegreen algae is one type of algae that lives here.

Along with protists, there are many varieties of fungi. There are three categories of fungi, sac, thread-like, and club fungi. Some of these are jelly-like fungi (Auricularia auricula-judael), gilled fungi (Phylloporos pelletieri), coral fungi (Nectria cinnabarina), stinkhorn fungi (Onygena equina), bracket fungi (Inontus radiatus), toothed fungi (Tarzetta cupularis), and slime mold (Fuligigo septica).

There are many different species from the plant kingdom. Some of those species are bamboo (Bambusa tulda), Cohune palm Trees(Orbigyna cohune), wild orchids (Oncidium sphacehtum), banana trees (Musa X paradisiaca L.), bougainvillea (Bougainvillea spectabilis), cocnut tree (Cocos nucifera), and durians (Durio zibethnus). Also, some mosses are the Island Blanket moss (Gaillardia grandiflora) and branchy moss (Pterobryon hyphales).

There is also a huge variety of animals in the tropical rainforest biome. Some of which include Club-horned grasshoppers (Aeoloplides turnbulli), parrots (Amazona ventralis), chimpanzees (Pan troglodytes), toucans (Ramphastos swainsonii), blue and gold macaws (Ara arauna), Birdwing Butterflies (Omithoptera priamus), red-eyed tree frogs (Agalychnis callidryas) , ball pythons (Python regius), Zodiac Moths (Alcides zodiacu), jaguars (Panthera pardus), and even wood ants (Formica rufa). A couple invertabrates are red segmented worms and earth worms.
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The Four Layers

The tropical rainforest is divided into four layers. There is the emergent, upper canopy, understory, and forest floor. In the emergent, the trees are spaced 30 feet apart and are anywhere from 100 to 240 feet tall. The trees have small, pointed leaves, and their roots are very shallow. In the upper canopy, there are trees from 60 to 130 feet tall. They can reach sunlight very easily, but it makes it so the plants below them get less sunlight. This layer is home to most of the animals in the rainforest. The next layer is the understory. It has 60 foot trees, and is home to shrubs, and small trees. This layer is shady and has a high humidity level. The last layer, is the forest floor, or in other words, the ground. It is completely shaded, so there are only a few bushes and herbs growing there. The soil has a poor quallity, and is home to many decomposers and worms. All of these layers are very different from each other.

Tropical Rainforest Factual information
Tropical Rainforest Fictional Story
Tropical Rainforest Food Web
Tropical Rainforest Bibliography