Biotic Factors in the Rainforest

Plants-Banana tree, Orchid, Coffee plant, Poinsettia and Rubber tree                                         


Animals-Toucan, Boa Constrictor, Sloth, Spider Monkey, Poison Arrow Frog and Morpho Butterfly

Abiotic Factors in the Rainforest

Some are: Air, Sun, lots of Rain, Water, Soil, Rock, Humidity, High Temps

Carrying Capacity

Definition: The largest amount of individuals a species can hold

The resources an organism needs to survive are food, water, shelter, and space.

Spider Monkey population

Spider Monkeys tend to eat fruits or seeds so depending on the availability of that, the population will fluctuate. Since they live in trees, the quantity of trees is vital to their existence.

Limiting factors in the Rainforest

Definition: a factor that limits growth of a certain population                                                 Some examples of limiting factors in the rainforest are people cutting down trees, storms or natural disasters, predators and starvation.

Preditor/prey relationship

The jaguars of the rainforest eat deer, so the deer can be endangered if there are too many jaguars. But if there is a disaster like a huge storm, the jaguars could not get much food or shelter because their shelter would be destroyed. Some of their population might get wiped out balancing the relationship. There is also competition between the predators to get food if it is in short supply.

Energy Roles

Definition: Energy role-producers and and consumers that transfer energy.                       There are 4 different types of consumers- Herbavores, Carnivores, Omnivores and Scavengers.

Examples of each of the energy roles are: a tiger for consumers, a poinsettia would be a producer, and saprophytes are decomposers.                                                                        

The biggest producers get their energy from the sun, and only 10% of that energy is passed on. Producers are vital to all ecosystems because all living things need either sunlight or indirect sunlight to live.

Food Chains and Webs

A food web is more realistic than a food chain because there are so many possibilities and combinations. It shows more organisms and information!

This food web is more simple than most​.

In this food web if you removed the boa constrictor population, there would be an increase in the sloth population.

Trophic levels and Energy Pyramids

The reason we use a pyramid shape is because the energy is depleteing on the way up.

The producers are shown as the largest population than higher consumers because they are the most plentiful.


This is the chemical equation of photosynthesis:

The things that are needed for photosynthesis are water, carbon dioxide, and sunlight.

The things that are produced by photosynthesis are glucose and oxygen.

Photosynthesis takes place in the leaf of the plant in the chloroplasts.


Definition: Turning or bending movement of an organism toward or away from an exturnal stimulus.

Examples of this in the Rainforest would be phototropism (bending towards sunlight) or geotropism (bending towards the Earth due to gravity).

Plants survive by moving towards light which indicates a positive tropism.


Decomposers are important in every ecosystem espesially the Rainforest. If there were no decomposers there would be no nutrients for trees and other plants to keep growing.

Saprophytes are a popular decomposer in the Rainforest that help break down all the dead things.


Adaptations help an organism by genetically modifying their bodies to help them survive in the environment. If an animal has webbed feet, then they can swim in water easily. Some  other adaptations include claws, fur, talons, teeth, prickly leaves in plants and many, many more.

Examples: The Jaguar is very strong and fast- this helps them hunt more efficiently. They also have sharp teeth to rip apart meat. Vines can also grow up to the top of the rainforest to reach for sunlight.

Natural Selection

Natural selection is when a species of  organisms is adapted over time to an environment. This helps an organism get food, reproduce, and find shelter.

If an organism is put into another ecosystem the organism would not be able to adapt quick enough to the environment, would not be able to reproduce and then die.

The Jaguar has been naturally selected to survive in my ecosystem. The Jaguar adapted to the hunting style of the Rainforest and grew strong limbs and a slender body to be quicker. It also has sharp strong teeth to rip apart prey. The Jaguar is actually an endangered species. It has been declining in population due to the demand for their fur and ruthless hunters.

Comment Stream

2 years ago

A better solution might be to find a collage instead of four single pictures.

2 years ago

I recommend that you make a collage of photos

2 years ago

I tried to create one I don't know how Bella and Matt

2 years ago

It was nice but had too much single photos

2 years ago

Yes I'll try to fix that thanks kelvin

2 years ago

Looks good...just add a picture for your abiotic factors.

2 years ago

I agree with kelvin, but GREAT JOB!

2 years ago

very good and informationalπŸ‘

2 years ago

You did a good job! I like your pictures

2 years ago

thank you @paytonsmith and @chloedillard