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1A1_2012 Group 7 -  Tropical Rainforest

Page history last edited by 1A1_2012 Group 7 12 years ago

Team members

 

Names / Roles:

 

  • Vivian  ( Leader )
  • Siew Min  ( Chief Editor )   
  • Syafiqah  ( Researcher )
  • Hui Juan  ( Researcher ) 

 

 


Overview

In this section, include a brief description of the allocated ecosystem. You should include the following information:

 

  • Location of the ecosystem: tropical rainforest is an ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator. Rainforests can be found in Asia, Australia, Africa, South America, Central America, Mexico and on many of the Pacific, Caribbean, and Indian Ocean islands.

 

  • Description of ecosystemTropical rainforests are characterized in two words: warm and wet.

 

  • Biodiversity of ecosystem: Many types of plants and trees.Poisonous Frogs and snakes.Hungry tigers and leopard.Crocodiles,many types of birds such as the Double wattled Cassowary (Casuarius casuarius).

 

                                                                                   

 

 

 

 


Physical Factors

Search the Internet for information on the following physical factors in the allocated ecosystem. 

 

  Light

- The forest floor, the bottom-most layer, receives only 2% of the sunlight. Only plants adapted to low light can grow in this region. Away from riverbanks, swamps and clearings, where dense undergrowth is found, the forest floor is relatively clear of vegetation because of the low sunlight penetration. This more open quality permits the easy movement of larger animals such as: ungulates like the okapi, tapir, Sumatran rhinoceros,  and apes like the western lowland gorilla, as well as many species of reptiles, amphibians, and insects. The understory also contains decaying plant and   animal matter, which disappears quickly, because the warm, humid conditions promote rapid decay. Many forms of fungi growing here help decay the animal and plant waste.

 

 

 

  Temperature

- A tropical rainforest is found in hot, humid environments in equatorial climates. They contain the most diverse range and highest volume of plant and animal life found anywhere on earth. In general, tropical rainforests have hot and humid climates where it rains virtually everyday. The level of rainfall depends on the time of year. Temperatures vary through the year but much less than the rainfall. The graph shows average rainfall and temperature in Manaus, Brazil, in the Amazon rainforest. The rainy season is from December to May. Notice how much the rainfall varies over the year the highest monthly rainfall is in March with over 300mm, while the lowest is in August with less than 50mm. Over the year, the temperature only varies by 2°C.

                                                                

 

  Water

Rainforest need lots of water and most of it comes pouring down as rain - at least 200 cm per year. Some tropical rainforests get more than 3 cm per day! When it is not raining, the leaves are dripping and steam is rising. This keeps the whole rainforest constantly wet and steamy.

 

  Air

In the tropical forest, the scientist had measured that 40% of oxygen have been produced.

 

                                                                  

 

 

 


Classification of Living Organisms

Classify at least eightof the living organisms found in the allocated ecosystem into the categories below:

1. Producers:

 

  • Plants

 

 

 

2. Primary Consumers:

 

  • Squirrel

 

 

  • Rabbit


 

 

3. Secondary Consumers:

 

  • Snakes 

 

 

  • Fox

 

 

 

4. Tertiary Consumers:

 

  • Bear

 

 

  • Eagle

 

 

 

5.  Decomposer

 

  • Fungi

 

 

 



Food Web 

Create a food web using at least eight of the living organisms listed above. You may wish to use Microsoft PowerPoint to create your food web. Save your food web as a picture. Finally copy and paste your picture in this section of your wiki.

 







 


Interrelationship in Ecosystem

Give at least one example for each of the following relationships in the ecosystem:

  • Predator-prey relationship
  • Parasitism

 

 


Useful Links

Plagiarism is a strongly discouraged.

 

Include the links of all websites you obtained information from to complete your ecology wiki. 

For example:

Wild World @ nationalgeographic.com ( http://www.nationalgeographic.com/wildworld/terrestrial.html )

 

 

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