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Tropical Rainforest Biome

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Julie Choi

on 20 May 2014

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Transcript of Tropical Rainforest Biome

Tropical Rainforest Biome
By: Rhea, Amanda, Julie, Tanya, and Aisha
Geographic Location
The tropical rainforest is a forest of tall trees in a region of year-round warmth. It is found in most equatorial areas. Tropical rainforests are one of the oldest biomes on Earth and therefore have a great variety of animals living there. They are spread through many parts of the world. It has different types of animal species and plants as well.

Distribution of the Biome:
1) Abiotic Factors:
The abiotic factors specific to the Tropical Rainforest are the amount of water, sunlight, soil, precipitation, the temperature, and the climate as a whole. These factors affect plants and animals that live there. If there wasn’t water and sunlight then the plants would not be able to grow, and animals depend on plants for food. These factors also affect the types of animals and plants grow/live here. There is an average of 50 to 260 inches (125 to 660 cm.) of rain falls yearly. Tropical Rainforests are located near the equator so there is much sunlight here. The climate is very warm and wet. All of these factors help the ecosystem grow and thrive.

2) Biotic Factors:
3) Limiting factors:
Density independent factors of a tropical rain forest include human
activities such as deforestation, as well as natural disasters. These
factors affect the population regardless of its size. A density
dependent factor would be hunting a specific prey because of an
increase in population.Limiting factors in the tropical rainforest
biome include area's heat, water source, sunshine, war, and even soil.
In addition, sunshine and rain can be limiting factors for animals and
plants in the area as these would affect their growth.
4) Organisms
One example of a biotic factor in the tropical rainforest is the Jaguar. The jaguar keeps the population of fish, lizards, deer, wild pigs, and sloths level by consuming them. Without the jaguar, most of these species would overpopulate. Another example of a tropical rainforest biotic factor is bamboo, which provides food for consumers such as Gorillas. Plants such as bamboo and tropical fruit trees also provide oxygen for the animals living in the ecosystem. A monkey is also a biotic factor of the tropical rainforest, which eat fruits, leaves, plants, seeds, nuts, and grains, and that helps pass seeds throughout the environment.

Durian Tree
Kapok Tree
Rafflesia Flower
Some primary consumers in the tropical rainforest are grasshoppers, earthworms, humming birds, and deer. Examples of secondary consumers are frogs, toads, spiders, sparrows, and woodpeckers. Tertiary consumers in the tropical rainforest are hawks, tigers, apes, and jaguars.

The Tropical Rain forest biome is located in Central and South America, Southeast Asia, Africa and Australia.Rainfall varies widely from a low
of about 250cm of rain per year to about 450 cm/year. That means a range from about 8 to 14 feet of rain per year. Warm and wet describes the tropical rain forest climate. The average annual temperature is above 20 degrees Celsius there is never a frost.
5) Food Web
6) Predator-Prey Relationships
The Anaconda and Capybara are an example of predator-prey relationships in the tropical rainforest. The Capybara is a large rodent that lives in and near water. The Anaconda is a giant water snake that can eat a single Capybara whole. Another example of this relationship is ants and an anteater.

7) Energy (Productivity) Pyramid
The very base of the pyramid are producers, who obtain energy from the sun. Examples are cyanobacteria, algae, herbs, and the tall trees of the canopy. Primary consumers are herbivores, and they are animals like howler monkeys, the three-toed sloth, and leaf-cutter ants. Secondary consumers feed on primary consumers and sometimes autotrophs, and they are organisms like toucans, monkeys, and the red-eyed tree frog. Tertiary consumers are the predators who eat primary and secondary consumers such as the jaguar and the leopard. 10% of the energy is taken to the next level, with the rest of the 90% used in the organism and given off as heat.
8) Endangered Plant
9) Secondary Succession
10) Impact of Human Activity
Humans have caused much damage to tropical rainforests around the world. Deforestation is a major problem in all parts of the world. People cut down trees for wood for furniture and other resources. They clear entire resources. So humans have impacted tropical rainforests in negative ways. Deforestation is due to the industries of mining, lumber, and agriculture.The economic development in these areas are polluting tropical rainforests, reducing the habitat of numerous species, and producing loud and disturbing noises from the machinery. Deforestation really effects the biogeochemical cycle.

One example of a positive impact that human activity has had is that it has led to the discovery of many different medicines. Nearly 120 prescription medications today are derived from plants in the tropical rainforest, nearly ⅔ of these drugs are known to have cancer fighting properties, and not only are the drugs used to combat cancer, they are key in fighting malaria, heart disease, hypertension, bronchitis, diabetes, arthritis, and other illnesses.

The influence of human activity on energy flow and biogeochemical cycling can lead to significant changes in global climate and primary productivity. Observations of increasing habitat disruption and declining biological diversity signal that human activities can affect long-established processes of energy flow and biogeochemical cycling.

11) Predictions
If we don't stop clearing forests then they will eventually disappear for good. The animals and plants will die along with it. Another way the Tropical Rainforests could die out is because of climate change (such as in temperature, rainfall, etc.). So our forests may disappear sometime in this century researches say. But plant and therefore animal species may be able to tolerate and adapt to these climate changes. Tropical Rainforests may be able to survive if we take certain measures such as doing whatever we can to slow global warming, and to also take measures such as afforestation, which is that trees should be replanted in areas of deforestation. If we follow these measures and more, then hopefully the Tropical Rainforests will have a higher chance of survival and won't disappear anytime soon.
12) Reward Challenge: Wild River Ride
The participants will take a trip from the Amazon river near the Brazillian border to its mouth at the Atlantic Ocean. The participants will navigate the dangerous waters of the Amazon River through the Amazon rainforest for a week. The first to reach the mouth of the Amazon River will win the challenge!
"Disturbance and Succession." Web.
Sandhyarani, Ningthoujam. "Tropical Rainforest's Energy Pyramid."
Buzzle. Buzzle.com. Web. 17 May 2014.
"Abiotic factors." Abiotic factors. N.p., n.d. Web. 18 May 2014. <http://info.rforests.tripod.com/abiotic_factors.htm>.
"Rainforest Biomes." Rainforest Biomes. N.p., n.d. Web. 18 May 2014. <http://www.blueplanetbiomes.org/rainforest.htm>.
" Biotic Factors. N.p., n.d. Web. 18 May 2014. <http://info.rforests.tripod.com/biotic_factors.htm>.

A farmer cuts down the vegetation in an area and abandons it after the soil becomes infertile for farming. First pioneer species like mosses, lichens and algae settle into the area. As time passes, the soil regains nutrients as more organisms like small plants, ferns, and seed plants settle in. Animals also begin to return to the area. Later the the large trees and shrubs arrive and begin to grow. After a very long period of time, the rainforest has completely recovered and became a thriving community.
Works Cited
Coconut Tree
Bengal Bamboo
Humming Bird
The Rafflesia Flower is endangered because humans are clearing the land that they usually grow on through land clearing, logging, etc.
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