1. Environmental Changes

2. Environmental Changes
Changes in environmental conditions can affect the survival of individual organisms and entire species.

3. Short-term Changes
Environmental change that occurs quickly and affects organism immediately.
Short-term environmental changes, like floods, don’t give populations time to adapt to change and force them to move or become extinct.

4. Long-term Changes
Environmental change that occurs slowly over time and affects organisms over generations.
Long-term environmental changes, like climate change, can permanently alter an ecosystem, but over time the change may cause some genetic variations to become more favorable or less favorable in the new environment. If adaptations to the new environment are not present or do not develop, populations can become extinct.

5. Peppered Moth Example

6. Double Bubble map Time!
Create a double bubble map for short-term and long term environmental change
Use the following terms and phrases in your bubbles.

7. Climate Change
Drought
Hurricane
Can cause extinction
Can recover from change in a short time
Floods
Can cause permanent change to ecosystem
Ice Age
Volcanic eruptions
Can cause the genes of an organism to change
Can cause the genes of an entire population to change
Seasons
Oil Spill
Forest Fire

8. Double bubble Map Climate Change-LT Drought- Both Hurricane-ST
Can cause extinction-LT
Can recover from change in a short time-ST
Floods-ST
Can cause permanent change to ecosystem-LT
Ice Age-LT
Volcanic eruptions-LT
Can cause the genes/behavior of an organism to change-ST
Can cause the genes/behavior of an entire population to change-LT
Seasons-ST
Oil spill-ST
Forest Fire- Both

9. Do you remember this? What happens after a short term change disaster?

10. Questions
List 5 examples of long-term environmental changes List 5 examples of short-term environmental changes Which type of environmental change will most likely change the ecosystem permanently? Explain. How can long-term & short-term changes CHANGE the genetic make-up of a population? How can a population survive a long-term environmental change? Explain why this is helpful.

11. Questions
List 5 examples of long-term environmental changes List 5 examples of short-term environmental changes Which type of environmental change will most likely change the ecosystem permanently? Explain. Long-term because whole populations had to adapt (change) or they died, which also changed the ecosystem's food chains. How can long-term & short-term changes CHANGE the genetic make-up of a population? LT-only species best adapted to the environment survive, they pass on the genes. ST- the organism that has a trait that helps it survive RIGHT NOW lives. How can a population survive a long-term environmental change? Explain why this is helpful. Natural selection! Only the strong (best adapted) survive so the genes are passed on making the species even better for the environment.