Population Dynamic

Population

Do Now # 12

Be ready to answer the following questions

Open Ended

1. Suppose you had a pet rabbit. What would the rabbit need to stay alive and healthy?

Open Ended

2-A female rabbit can give birth to over 40 baby rabbits a year. Suppose all of her offspring survived and reproduced, and so on.In only 8 years the mass of rabbits would exceed the mass of the earth. Why are we not overrun with rabbits? What keeps the rabbit population in check?

Notes

• Takes notes from the video

Open Ended

Why did China establish its “One Child Policy?”

Open Ended

Since China has decided to end its “One Child Policy” what is likely to happen to the population size in china?

Population

All the individuals of a species that live together in an area where they can interbreed and have fertile offspring.

Three key features of populations

size: how big something is

Three key features of populations

Density: is the number of individuals per unit geographic area.

Three key features of populations

Dispersion describes how the individuals are distributed, or spread throughout their habitat.

Population also change in size

What increases or decreases the student population in our school?

Open Ended

What increases or decreases the student population in our school?

How do population change at our school?

Multiple Choice

What does natality mean?

• Death rate

• Birth rate

• Immigration

• emigration

Multiple Choice

What does mortality mean?

• Birth Rate

• Immigration

• Death Rate

• Emigration

Poll

What are some reasons a real population can increase?

• natality

• mortality

Poll

What are some reasons a population can decrease?

• deaths

• emigration

Multiple Choice

If the Birth rate is greater than death rate what happens to population growth?

• increase

• decrease

Multiple Choice

If the death rate is greater than birth rate what happens to population growth?

• Increase

• Decrease

Multiple Choice

Which country or countries do you think has an INCREASING population?

• Lebanon

• China

• Denmark

Multiple Choice

Which country or countries do you think has a DECLINING population?

• Lebanon

• Denmark

• China

Multiple Choice

What is the independent variable of the both graphs?

• time

• population size

Multiple Choice

What is the dependent variable of both graphs?

• time

• population size

Multiple Select

What are the trends you notice about the graphs?

Exponential:

Logistic:

• Logistic: S shaped; Exponential: S shaped

• Logistic: j shaped; Exponential: S shaped

• Logistic: S shaped; Exponential: j shaped

• Logistic: j shaped; Exponential: S shaped

Multiple Choice

How do the populations change over time?

Exponential:

Logistic:

• Exponential: population increases infinitively

  Logistic: Population increases at first, then decreases and stabilizes

• Logistic: population increases infinitively

  Exponential: Population increases at first, then decreases and stabilizes

Multiple Choice

What does k represent?

• Capacity

• Carrying Capacity

• Exponential Growth

Open Ended

What could have caused the population to drastically decrease after 1850?

Open Ended

What is the carrying capacity of sheep?

Open Ended

What are some limiting factors in an animal population?

Multiple Select

What does density dependent mean?

• Dependent on population size

• Do not dependent on population size

• affects all populations similarly regardless of size.

Multiple Choice

What does density independent mean?

• Dependent of population size

• Affects all populations similarly regardless the population size

Multiple Choice

Density independent or density dependent?

• Density dependent

• Density Independent

Multiple Choice

Density independent or density dependent?

• Density Independent

• Density dependent

Multiple Choice

Density independent or density dependent?

• Density independent

• Density dependent

Ind work

Assigned on Teams

Homework

Edpuzzle " food web" due by Friday April 16,21