1. The Human Impact
Ecosystems & Humans

2. The Beginning
Looking at the environment around us there are some key terms …
Ecology: the study of the relationship between living organisms in an environment
Ecologist: Someone who studies these relationships
So for example…
If a certain population of animal (a frog for example) begins to die off ecologists would study the ecology to determine a cause

3. Needs What are our needs we require everyday to live ..?
Think about what you do on a daily basis

4. Food Habitat Air (Gas Exchange) Water Needs
What are our needs we require everyday to live ..?
Think about what you do on a daily basis
Food
Habitat
Air (Gas Exchange)
Water

5. Adaptations
Living things seem to be best suited for certain environments
We have come to know these as being adapted
That is to say, well suited to live where they live
Adapatations
Inherited characteristics that help an organism survive and reproduce where they live
Things like …
Claws
Fur
Needing less water
Etc

6. Relationships
Many different animals and creatures in the environment actually work together (sometimes) and form different types of relationships across species
Symbiosis
Two species live closely together in a relationship that lasts over time
Here are the different types…

7. Relationships
Many different animals and creatures in the environment actually work together (sometimes) and form different types of relationships across species
Here are the different types…
Mutualism (Symbiotic Relationship)
Both parties benefit from the relationship Great white shark and Remora Fish Great white gets cleaned Remora gets fed and protected

8. Relationships
Many different animals and creatures in the environment actually work together (sometimes) and form different types of relationships across species
Here are the different types…
Parasitism
One organism benefits the other organism is harmed Tape worm and people Tape worm is a parasite that absorbs nutrients from the small intestine The human/animal is the host and is harmed because it loses those nutrients

9. Relationships
Many different animals and creatures in the environment actually work together (sometimes) and form different types of relationships across species
Here are the different types…
Parasitism
One organism benefits the other organism is harmed Tape worm and people Tape worm is a parasite that absorbs nutrients from the small intestine The human/animal is the host and is harmed because it loses those nutrients

10. Relationships
Many different animals and creatures in the environment actually work together (sometimes) and form different types of relationships across species
Here are the different types…
Commensalism
One organism benefits the other organism is not harmed but does not gain either Orchid Plant and Tall Tree Orchid gets water from trunk and safety because it is up high … tall tree does not gain or lose

11. Environmental Impacts
Sometimes even small things to us are actually a large scale impact
Beaver Dams
A beaver builds a dam
Water rises on one side and drops on the other
This changes the ecosystems on both sides
How?

12. Fort Saskatchewan

13. Fort Saskatchewan

14. Human Impact Natural Resources?
Materials & products – found in nature to meet our basic needs
Any guesses?
Human Impact

15. Human Impact Natural Resources? Examples?
Materials & products – found in nature to meet our basic needs
Examples?
Trees
Water
Oil
Minerals

16. Increasing Populations
Increasing populations put …
More strain on the natural sources
More pollutants into the environment
More land is taken up
How do you think this has effected us? Other life?

17. People & Nature – Forever Changing
Back in the day … (like and early 1900s)
There were no stores
No markets
No Computers
No Cellphone
Fewer People
Our Impact on the environment was minimal.
What we needed we found in the environment

18. People & Nature – Forever Changing
Back in the day … (like and early 1900s)
There were no major stores
No markets
No Computers
No Cellphone
Fewer People
Our Impact on the environment was minimal.
What we needed we found in the environment

19. Our Society: Need vs. Want – Difference?
Needs
Wants

20. Example: Foods (Local vs. Import)

21. Example: Foods (Local vs. Import)

22. Example: Foods (Local vs. Import)

23. Example: Foods (Local vs. Import)

24. Example: Foods (Local vs. Import)

25. Example: Foods (Local vs. Import)
Minimal Environmental Impact!

26. How about now? Draw what todays more commonly looks like!