Interactions in Ecosystems Topics 2 and 3

What are natural resources? Natural Resources are materials or substances that occur in nature and can be used by people Examples are minerals and Forests Are there others? Let’s list them!

Types of Resources Renewable Non-Renewable Definition: Can be replaced or recreated in a lifetime    Definition: Can not be replaced or recreated in a life time Example

Resource Sort Brain Pop Sortify Natural Resources  https://www.brainpop.com/games/sortify-naturalresources/ Brain Pop Sortify Natural Resources

Think About It! The growing human population on earth causes problems for the natural ecosystems. Why are human needs in conflict with the needs of natural ecosystems?

I Can… I can identify mechanisms by which pollutants enter and move through the environment, and can become concentrated in some organisms I can identify signs of ecological succession (change) in local ecosystems  I can illustrate how life-supporting environments meet the needs of living things for nutrients, energy sources, moisture, suitable habitat, and exchange of gases 

The Carbon Cycle Carbon is on eelement that is found in every plant and animal The Carbon cycle is represented in the diagram… what do the arrows mean?

The Carbon Cycle What is the starting point in the carbon cycle? What is the ending point in the carbon cycle? Describe the Carbon Cycle https://www.youtube.com/watch?v=XhR1IEbEops (Start at 6 minutes) https://www.youtube.com/watch?v=2D7hZpIYlCA

Now for the Finest Diagram You’ve seen!

Stages of the Water Cycle

Describe the Steps of the water cycle Transpiration Condensation Precipitation Evaporation

What are the Missing Steps from Before?                

Describe the Steps of the water cycle Accumulation Surface Run Off

Think about it! What is water used for in organisms?

Pollution What is Pollution? What is a pollutant? When does pollution occur? Carbon dioxide (CO2) is a natural and necessary substance in the atmosphere. Explain how CO2 can become a pollutant?

Pollution What is Pollution? Pollution happens when a substance is added into the environment at a rate that it can’t be repaired. What is a pollutant? A substance that causes pollution Think About it! Carbon dioxide (CO2) is a natural and necessary substance in the atmosphere. Explain how CO2 can become a pollutant?

Pollution in Water An example of water pollution is Acid Rain https://www.youtube.com/watch?v=zHXgkeKiSxk Acid rain is formed in the air when carbon dioxide and sulfur dioxide are released from the burning of fossil fuels and mix with water in the atmosphere. Why does acid rain kill fish?

Think about It! https://www.youtube.com/watch?v=v09KnqiYi-c How do Humans Impact the Environment? What changes did Mr. Burns do that changed the Environment?

No Simple Answers https://www.youtube.com/watch?v=R9tQXY2GNxI Do forest fires benefit humans? https://www.youtube.com/watch?v=RqFZ0Oa909k Why would it be helpful to a forest ecosystem to experience a forest fire?

No Simple Answers https://www.youtube.com/watch?v=0YQbriSlJZw How was DDT used? Why was it used? https://www.youtube.com/watch?v=20jbE9kryVk Why is it no longer used?

No Simple Answers - Eagles

Think About it! Do humans play a role in how animals interact in their ecosystems?

Game Time! Get Ready to play a game outside! 

Game Example Draw this picture in your notes!

Introduced Species Introduced Species are species that are not native to an area that have been brought to a new area Introduced Species are also known as invasive species

Biological Controls Biological controls are natural controls to control introduced or invasive species. Examples include: Goats and Invasive Plants https://www.youtube.com/watch?v=yhCf6UDwzeI Pheromones and Mountain Pine Beetle Others? https://www.youtube.com/watch?v=nlYlNF30bVg For Fun!

Species in Danger What does it mean if a species is extinct?  What does it mean if a species is endangered?  Which basic need is most in danger to cause organisms to be threatened with extinction in Canada? Let’s talk about this example! https://www.youtube.com/watch?v=E-PQYT0TnPw http://www.skburrowingowl.ca/about-owls/problems-facing-burrowing-owls