Tropical Rainforest Biome

By: Kevin Pike-Fisher, Saul Gonzales and Wilson Campos
(Costa Rica Rainforest)
(Internet Geography - GeoTopics - Ecosystems)

The tropical rain forests are found in regions near the equator which means that it is very warm. There are many plants and trees in the tropical rain forests because of its weather and plants grow when there is alot of rain and when the sun is captured by them some types of plants that are found in the tropical rain forests are Bengal Bamboo, Bougainvillea, Curare, Coconut Trees, Durian, Jambu, Kapok Tree, Mangrove forests, Strangler Figs, and Tualang. In a 100 square meter area there are 300 different kinds of trees. There are also many unique trees like the Canopy Trees. (Prentice Hall Science Explorer Environmental Science)

Precipitation: The precipation in the tropical rain forests is 300 centimeters all year round. This means that there is alot of rain and makes the trees and plants grow and this makes the best place for trees and plants to grow because it is the perfect weather for them and they receive alot of rain. The main plant in the tropical rain forests are trees and the canopys there are the longest trees in the whole rain forests.
(Rainfall Chart)

Sunlight:The abundant sunlight and the warm temperature and the daily rain makes the plants in the rain forests grow very quickly. This rain forests has no winter so the plants grow all year. The soil in the tropical rain forests is not very good, plants cann not only depend on sunlight and rain. They need minerals and those minerals are calcium, magnesium, and phosphorus. The soil doesnt have these minerals because during the years it has been washed up and the minerals have been gone. The rain forests consists of three different kinds of layersthe first one is the emergent layer this layer has the tallest trees they capture alot of sunlight and they also have to deal with the wind in the winter season. The second layer is the canopy trees these trees capture most of the sunlight, their branches are very long and their leaves cover every little light that might be passing by. Most of the animals that live in the tropical rain forests live in the canopy trees because of the fruit, leaves, and flowers. The last layer in the tropical rain forests is the understory and this consists of bushes, shrubs, and small trees. These plants are adapted to low light levels and there long leaves try to capture as much sunlight as they can. The tropical rain forest floor only receives 2 % of sunlight.
(Prentice Hall Science Explorer Environmental Science)
external image 22668574.jpg

Temperature:The tropical rain forests has a temperature of a year round warmth, and it receives alot of rain the average rain fall in the tropical rain forests is 125 to 660 centimeters a year. The tropical rain forests belongs to the tropical wet climate group. The temperature of the tropical rain forests is always in 93 degrees and sometimes it goes over 93, and sometimes it drops to 64 degrees which means that it is still warm there. The average humidity in the tropical rain forests is between 77 and 88 percent. There are some seasons where there is less rain and in moonsoonal areas there is a very dry season. Tropical rain forests cover 6% of the earths surface so they are spreded around everywhere. Scientists say that most of the earths and plants live here because of the weather. The tropical rain forests produces 40% of the earths oxygen. The tropical rain forests has more trees than other areas in the world, scientists have counted 100 to 300 differrent kinds of tree in a 2 1/2 acre. Seventy percent of plants in the tropical rain forests are trees.
(Prentice Hall Science Explorer Environmental Science)

Climate:The climate in the tropical rain forests is humid most of the year because of its rainfall. The tropical rain forests has alot of rain because it is very hot and wet during the year. Since this climate is found near the equator this means that there is more direct light hitting it. In the tropical rain forests the water cycle also takes place and it starts like this the sun warms the land and sea and the water evaporates to the air, then when the warm weather meets the cold weather condensation starts and the vapor forms droplets and the clouds start to form, and then the clouds start to drop the rain. In the tropical rain forests it rains more than ninety days a year and during these rain storms the sun is always shining.(Prentice Hall Science Explorer Environmental Science)

Animal Species:Some animal species found in the tropical rain forests are Africa Forest Elephant, Bengal Tiger, Chimpanzee, Harpy Eagle, King Cobra, and Orangutans. Animals like the tropical rain forests because there are alot of plants and many of those plants produce fruit.(Biomes of the Earth)
(Rainforest Animals)
Capybara live in South American Rainforest from Panama to Eastern Argentina surprisingly this animal is indeed a rodent. The capybara is an extremely good swimmer and seem to be very active at sunrise and sunset and most scientists would consider them nocturnal animals and these animal mainly feed on plants.
(Rainforest Animals)

The Barred Tree Frog (Phyllomedusa tomopterna) has long legs and suction pads on its fingertips to help it climb about in the trees of the Amazon Rainforest these frogs mainly live more towards the canopy of the tropical rainforest, the only time that they come down for are during the mating and breeding season. Males usually sing a song to attract the female and the female frogs don't look at the male frogs by looks but by their way of song. (

external image _1768316_tiger2.jpg
The tiger is one of the animals that live in the tropical rain forests and is one of the most dangerous animal species in the tropical rain forests. It is very fast so it can eat or chase anything that he wants and could catch up to them in a quick instant. The tiger likes to relax in water and wait untill a prey comes around him and he starts chasing them and captures them.

This video basically shows us a fight for survival and the battle between predator and rey even though they are equally matched one will come out on top.
(Jaguar vs. Anaconda)


(Learning About Rainforests)

This is a Carniverious plant,the most common one is the Venus fly trap. These
plants catch there prey/enemies more like an animal. they have pinchers that trap
other animals.
(Learning About Rainforests)

There are other plants in the rainforest such as Bromeliads, Epiphytes, Orchids, and Saprophytes.
(Learning About Rainforests)

Energy Flow:

This graph shows the amount of precipitation the tropical forest in Belem, Brazil gets,
and the temperatures.
(Belem, Brazil graph of Tropical Rainforest)


Works Cited:
P. Reading, Richard. Endangered Animals: A Reference Guide to Conflicting Issues. New York: Greenwood Press, 2000.

Newman, Arnold. The Tropical Rainforest: A World Survey of Our Most Valuable Endangered Habitat : With a Blueprint for Its Survival. New York: Facts on File, 1990.

"Costa Rica Rainforest the Central American Paradise." Casa Rio Blanco Ecolodge - Costa Rica - Bed and Breakfast. 27 Feb. 2008

Allaby, Michael. Tropical Rain Forests (Biomes of the Earth). New York: Chelsea Clubhouse, 2006.

"" Yahoo! GeoCities: Get a free web site with easy-to-use site building tools. 27 Feb. 2008

Belem, Brazil graph of Tropical Rainforest
** 01_18_07_ecosystems.html**

"Learning About Rainforests"

"Rainfall Chart." Rainfall. 5 Mar. 2008 <>.

Prentice Hall Science Explorer: Environmental Science. Toronto: Pearson Prentice Hall, 2007.

"Internet Geography - GeoTopics - Ecosystems." Internet Geography. 10 Mar. 2008 <

"Jaguar vs. Anaconda." Youtube. 13 Nov. 2006. 10 Mar. 2008 <>

"Rainforest Animals." MBGnet. 10 Mar. 2008 <>.