Agree Disagree 1 The carrying capacity of an

Agree Disagree 1. _______ The “carrying capacity” of an ecosystem is ____ the area of land it is contained in. 2. _______ If an animal population’s birth rate is higher than its death rate, the population ____ will increase. 3. _______ 4. _______ 5. _______ Population Density = the number of ____ organisms multiplied by the area they live in. If there was no pollution, then an ecosystem could support an unlimited ____ number of organisms. ____ The amount of water available can limit the size of populations in a land ecosystem.

Chapter 13, section 2 Populations

I. Birth/Death A. Birth Rate – births / time B. Death Rate – deaths / time

C. Effects: Birth rate > death rate = increase Birth rate < death rate = decrease Math is Fun! Birth Rate = 250 per year Death Rate = 300 per year What is the change in the population in one year?

II. Moving A. Migration – population shift from one location to another ? Why would organisms do this?

Humpback Whale Migration Locations

III. Population Density A. Pop. Density = Number / Area Example: 20 raccoons in a 4 square mile area What is the population density of raccoons?

Population Distribution in Ecosystems http: //www. youtube. com/watch? v=BMsm. Dy-2 jb. A

IV. Population Limits A. Limiting Factor – limits the number of organisms living in an ecosystem 1. food/water, space, temperature, competition

Human Population Distribution and Density Is it different for us than it is for other animals? http: //www. youtube. com/watch? v=s 9 d. Fy 6 x. BOBM

B. Carrying Capacity – maximum population that an ecosystem can support

What is the carrying capacity for deer on Walla?

Everything is connected! How Wolves Affected an Entire Ecosystem -contributed by Zander V. https: //www. youtube. com/watch? v=ysa 5 O Bh. Xz-Q

Carrying Capacity and Limiting Factors https: //www. youtube. com/watch? v=QI 2 ix. Je. Ix. EU https: //www. youtube. com/watch? v=Vc. SX 4 yt. Efc. E

Agree Disagree 1. _______ The “carrying capacity” of an ecosystem is ____ the area of land it is contained in. 2. _______ If an animal population’s birth rate is higher than its death rate, the population ____ will increase. 3. _______ 4. _______ 5. _______ Population Density = the number of ____ organisms multiplied by the area they live in. If there was no pollution, then an ecosystem could support an unlimited ____ number of organisms. ____ The amount of water available can limit the size of populations in a land ecosystem.