Warm Up A population of 30 deer lives in a forest. In your notebook, calculate how the population size changes during the five years listed below: A population of 30 deer lives in a forest. In your notebook, calculate how the population size changes during the five years listed below: 1. In the first year, 10 deer are born and 5 die 1. In the first year, 10 deer are born and 5 die 2. In the second year, 8 deer are born and non die. 2. In the second year, 8 deer are born and non die. 3. In the third year, 7 deer are born and 2 die. 3. In the third year, 7 deer are born and 2 die. 4. In the fourth year, 12 deer are born, 8 die, and 10 leave the forest. 4. In the fourth year, 12 deer are born, 8 die, and 10 leave the forest. 5. In the fifth year, 6 deer are born, 10 die, 12 leave the forest. 5. In the fifth year, 6 deer are born, 10 die, 12 leave the forest.

Big Idea What relationships exist between living things and the environment? What relationships exist between living things and the environment?

Populations Chapter 10, Section 2

Standards S.6.5.e Students know the number and types of organisms an ecosystem can support depends on the resources available and on abiotic factors, such as quantities of light and water, a range of temperatures, and soil composition. S.6.5.e Students know the number and types of organisms an ecosystem can support depends on the resources available and on abiotic factors, such as quantities of light and water, a range of temperatures, and soil composition.

Key Questions What kinds of questions can you ask based on looking at this picture?

Key Questions What kinds of questions can you ask based on looking at this picture?

Key Questions What kinds of questions can you ask based on looking at this picture?

Key Questions SWBAT describe what causes populations to change in size. SWBAT describe what causes populations to change in size. SWBAT list what factors limit population growth. SWBAT list what factors limit population growth.

Birth rate The number of births in a population in a certain amount of time.

Death rate Number of deaths in a population in a certain amount of time.

Immigration Moving into a population.

Emigration Leaving a population

Limiting factor An environmental factor that causes a population to stop growing.

Carrying capacity The largest population that an area can support.

Changes in Population Sizes What does the graph tell you about rabbit populations? What about fox populations?

Limiting Factors Some limiting factors for populations are: food and water

Limiting Factors Some limiting factors for populations are: food and water; space

Limiting Factors Some limiting factors for populations are: food and water; space; light

Limiting Factors Some limiting factors for populations are: food and water; space; light; soil composition

Limiting Factors Some limiting factors for populations are: food and water; space; light; soil composition; and weather

Key Questions What causes populations to change in size? What causes populations to change in size?

Key Questions What causes populations to change in size? What causes populations to change in size? Populations can change in size when new members join the population or when members leave the population. Populations can change in size when new members join the population or when members leave the population.

Key Questions What causes populations to change in size? What causes populations to change in size? Populations can change in size when new members join the population or when members leave the population. Populations can change in size when new members join the population or when members leave the population. What factors limit population growth? What factors limit population growth?

Key Questions What causes populations to change in size? What causes populations to change in size? Populations can change in size when new members join the population or when members leave the population. Populations can change in size when new members join the population or when members leave the population. What factors limit population growth? What factors limit population growth? Some limiting factors for populations are food and water, space, light, soil composition, and weather conditions. Some limiting factors for populations are food and water, space, light, soil composition, and weather conditions.

Homework Workbook 10, Section 2 Workbook 10, Section 2