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More Relationships in an Ecosystem
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Relationships in an Ecosystem
Cooperative Relationships
Cooperative
This relationship is when a species works together in order to survive.
Can you think of any cooperation relationships?
Examples of This Relationship:
EXAMPLES
- The Leaf-cutter ants all help carry leaves to their nest so fungus can grow on them for food
- Elephants help raise each others young
- Wolves hunt in packs for better chances of succes and survival
Predator-Prey Relationship
This is a relationship in which one organism (the predator) eats another organism (the prey)
Predator-
Prey
Examples
EXAMPLES
- Wolves catching fish, moose, and other animals
- Grizzly Bears catching fish
- Hammerhead sharks catching stingrays
A Deeper Dive
Predators often cature weak or injured individuals of a prey population.
When the weak members of a population are removed, there are more resources avaliable for the remaining members which acutally keeps the prey population healthy.
Competitive Relationships
Competitive
This is a relationship where organisms share the same habitat but have to compete for resources.
A Deeper Dive
Competition describes interactions between TWO or MORE organisms that need the same resource at the same time.
Can you think of any Competitive Relationships?
Examples
TREES! They all need sunlight, and the shade from taller trees can slow the growth of the shorter trees.
EXAMPLES
WOLVES! They all need to eat, but so
do ravens. Ravens can swoop down
and try to steal meet from the most
recent hunt.
Were You Paying Attention?
Review
In your own words: Describe a cooperative relationship and give an example.
In your own words: Explain the relationship between ravens and wolves.
What relationship is left? Give an example of this relationship that was NOT in this presention