Succession and Environmental

Issues

Gaiser Life Science

KnowWhat happens to a vacant lot or garden over time?

Evidence

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“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

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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

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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?

This PowerPoint was created by Tim Paterek from Charlene Shea’s lecture This PowerPoint was created by Tim Paterek from Charlene Shea’s lecture notes. All pictures came from Google Image Search. To fall within the Fair notes. All pictures came from Google Image Search. To fall within the Fair Use Guidelines, this PowerPoint must be used within the confines of the Use Guidelines, this PowerPoint must be used within the confines of the classroom and may not be published back onto the Internet unless the classroom and may not be published back onto the Internet unless the

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