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Tropical Rainforest Biome
Transcript of Tropical Rainforest Biome
Fun facts about the Tropical Rainforest
The trees are so densely packed that rain falling on the canopy can take as long as 10 minutes to reach the ground.
The forests of Central Africa are home to more than 8,000 different species of plants.
1 out of 4 ingredients in our medicine is from rainforest plants.
Insects make up the majority of living creatures in the tropical rainforest
The Tropical Rain forest biome is located in Central and South America, Southeast Asia, Africa and Australia. It is found in most equatorial areas.
By Jackson Nolen, Blake Gable, Elise Chandler, Tyler Roberts
Plants of The Tropical Rainforest
The rain forest is about the same temperature year round. The temperature rarely gets higher than 93 °F or drops lower than 68 °F. The average humidity is between 77 and 88%. Rain forests are so hot because they are found near the equator.
Rainforests are home to 50 percent of Earth's plants and animals.
These plants provide shelter and food for the animals of the rainforest and provide much of the world's oxygen supply.
6% of the Earth's land surface is now covered by rainforests.
Some rainforest are:
• Central America in the the Amazon river basin.
• Africa - Zaire basin, with a small area in West Africa; also eastern Madagascar.
• Indo-Malaysia - west coast of India, Assam, Southeast Asia, New Guinea and Queensland, Australia
The climate in a tropical rainforest is very humid because of all the rainfall. The climate is found near the equator which means that there is more direct sunlight hitting the land and sea there than anywhere else. The sun warms the land and sea and the water evaporates into the air. This is what makes it rain so much.
The closer to the equator you are, the more solar radiation there is. The more solar radiation there is, the hotter it is. Rain forest are never found in climates which have temperatures 32° F and below because the plant life will not be able to live in the frost. All the plants will die out if the rain forest is cooler.
250cm to 450cm/year
or 8-14 feet/year
50% comes from own evaporation
Abiotic Factors-a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it: Abiotic factors can determine which species of organisms will survive in a given environment.
Lianas are a type of climbing vine found throughout the tropical rainforest.
They have thick, wooden stems, that vary in length and width.
These vines begin life on the forest floor, then start climbing trees on a search for sunlight.
The abiotic factors of the Tropical Rainforest are:
sunlight, soil, temperature, and water.
Poison Dart Frog
It is like the Venus Fly Trap.
It is found in southeast Asia.
This plant can grow up to 30 feet tall.
Other than insects, it may feed on mammals, or small reptiles trying to steal its insects.
termites, crickets, flies, ants
marshes, rivers, streams
12 days to hatch
Southwestern U.S., central and South America
Plants, leaves, fungus
queen lays the eggs
There are over 20,000 known species of orchids.
They are common in moist tropical regions
Most orchids in the rainforest grow on trees.
Northern Australia and New Guinea
all over rainforest
Mexico and South America
variety of animals
rainforest, grasslands, deserts
rodents, fish, birds, caimans, turtles, and other large animals
over 37 feet length
groups of eggs
- Light is the main source of energy in the rain forest. In the rain forest, most of the sunlight is absorbed by the upper canopy, made up of trees between 60 and 100 feet tall. Only about 1 percent of the sunlight that strikes the top of the rain forest reaches to the forest floor. As a result, few large plants grow on the rain forest floor.
- The temperature in a rain forest rarely gets higher than 93 degrees F or drops below 68 degrees. The high and constant temperatures increase the rate of evaporation and keep humidity high. Warm temperatures also allow growth to occur quickly. As animal and insect life does not need to expend energy keeping warm, it can spend more energy on reproduction and reproduce with greater frequency. This explains some of the abundance of life in the rain forest.
- This is one of the most visible abiotic factors of the rain forest. Rain forests typically receive upwards of 80 inches of rain each year. In addition, the average humidity levels are between 77 and 88 percent. The air under the canopy layer is still and very humid as a result. The trees also give off water through their leaves in a process called transpiration. This process can account for as much as half of the precipitation in a rain forest.
- The rain forest soil is shallow and thin, with few nutrients and soluble minerals. The heavy rains common in rain forests wash away the nutrients in the soil. As a result, the nutrients in a rain forest are largely found in the roots and leaves of living plants, and in the decomposing vegetation on the forest floor, rather than in the soil.