succession and environmental issues gaiser life science
TRANSCRIPT
Succession and Environmental
Issues
Gaiser Life Science
KnowWhat happens to a vacant lot or garden over time?
Evidence
Page #
“I don’t know anything.” is not an acceptable answer.
Use complete sentences.
After listening to the PowerPoint lecture, come back here and list evidence to explain why your answer to the above question is or is not a good answer. You may also use other outside sources to help you respond.
Your choice - you decide how you want to represent your learning.
Clarifying ?s Information
Page #
Succession and Environmental Issues
succession - a series of predictable changes in a community over time
- changes in an area where NO ecosystem ever existedExample: New island (Surtsey, Iceland)
secondary succession
primary succession
- Changes happen faster after a disturbance in an existing ecosystem.Example: Volcanic eruption (Mt. St. Helens)
- things we use that are naturally replacedExamples: sunlight and wind
Happens slowly - over time. Seeds are deposited. Soil forms. Nutrients are deposited in the soil (rotting debris, bird droppings). Plants grow.
renewable resource
- things we use that can’t be replacedExample: coal
non-renewable resource
1. Resource use - Living and non-living things people use such as renewable and non-renewable resources
Environmental issues
2. Population growth - Improved medicines, sanitation, and agricultural advances have raised life expectancy world wide. At the same time population and resource consumption have increased.
Example: oil
Clarifying ?s Information
Page #
Succession and Environmental Issues
Summary:
- any contaminant added to the environment that has a negative effect on living things
pollutionExample: using coal to generate electricity
3. Pollution - Misuse of resources can have negative effects on the environment.
Factors to consider
1. Scenic value - Is the area peaceful and relaxing?
2. Health value - Good source of waterExample: clean water
3. Economic value - Will the area provide jobs?Example: lumber industry
4. Recreational value - Can the area provide leisure activities?Example: hiking
5. Ecological value - Does the area have too many organisms?
Example: pollutionExample: use of pesticides (DDT & 245T)
Clarifying ?s Information
Page #
Succession and Environmental Issues
succession - a series of predictable changes in a community over time
- changes in an area where NO ecosystem ever existedExample: New island (Surtsey, Iceland)
secondary succession
primary succession
- Changes happen faster after a disturbance in an existing ecosystem.Example: Volcanic eruption (Mt. St. Helens)
- things we use that are naturally replacedExamples: sunlight and wind
Happens slowly - over time. Seeds are deposited. Soil forms. Nutrients are deposited in the soil (rotting debris, bird droppings). Plants grow.
renewable resource
- things we use that can’t be replacedExamples: coal and oil
non-renewable resource
1. Resource use - Living and non-living things people use such as renewable and non-renewable resources
Environmental issues
2. Population growth - Improved medicines, sanitation, and agricultural advances have raised life expectancy world wide. At the same time population and resource consumption have increased.
Clarifying ?s Information
Page #Summary:
Succession and Environmental Issues
- any contaminant added to the environment that has a negative effect on living things
pollutionExamples: using coal to generate electricity, air pollution, use of pesticides
3. Pollution - Misuse of resources can have negative effects on the environment.
Factors to consider
1. Scenic value - Is the area peaceful and relaxing?
2. Health value - Good source of waterExample: clean water
3. Economic value - Will the area provide jobs?Example: lumber industry
4. Recreational value - Can the area provide leisure activities?Example: hiking
5. Ecological value - Does the area have too many organisms?
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