Abiotic Factors That Affect Populations

Gaiser Life Science

KnowWhat abiotic factors cause population sizes to change?

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.

1. Predict what may happen to an ecosystem if abiotic factors change.

2. What would happen if one or more populations are removed from or added to an ecosystem?

Answer the following questions.

Clarifying ?s Information

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Abiotic Factors That Affect Populations

abiotic factors - non-living parts of an ecosystem

6 types of abiotic factors

1. Water - needed by all living things to carry out life processes Example: digestion

Example: H2O, sunlight, O2, temperature, soil

2. Sunlight - necessary for plant life to occur

4. Oxygen - Important for animals with lungs or gills to breathe5. Temperature - determines what type of animal can live in an area

3. Pollution - Alters water quality - affects H2O dependent organisms ability to survive

6. Soil type - minerals in the soil influence what type of plants can grow. Example: The bleeding heart needs slightly acidic

soil. Asparagus needs slightly alkaline soilpopulation - all members of one species in a certain area.

Examples: polar bear vs camel

Example: Black bears in Yellowstone Park

Summary:

Clarifying ?s Information

Page #Summary:

Abiotic Factors That Affect Populations

abiotic factors - non-living parts of an ecosystem

6 types of abiotic factors

1. Water - needed by all living things to carry out life processes Example: digestion

Example: H2O, sunlight, O2, temperature, soil

2. Sunlight - necessary for plant life to occur

4. Oxygen - Important for animals with lungs or gills to breathe5. Temperature - determines what type of animal can live in an area

3. Pollution - Alters water quality - affects H2O dependent organisms ability to survive

6. Soil type - minerals in the soil influence what type of plants can grow. Example: The bleeding heart needs slightly acidic

soil. Asparagus needs slightly alkaline soilpopulation - all members of one species in a certain area.

Examples: polar bear vs camel

Example: Black bears in Yellowstone Park

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