Monday, May 18

Objective:

Students will be able to compare linear and exponential growth.

Bellringer:

Name 2 limiting factors.

4 MINUTES REMAINING…

Monday, May 18

Objective: Students will be able to

compare linear and exponential growth.

Bellringer: Name 2 limiting factors.

3 MINUTES REMAINING…

Monday, May 18

Objective: Students will be able to

compare linear and exponential growth.

Bellringer: Name 2 limiting factors.

2 MINUTES REMAINING…

Monday, May 18 last chance to view BR - 1 min

Objective: Students will be able to

compare linear and exponential growth.

Bellringer: Name 2 limiting factors.

30 Seconds Remaining…

10 Seconds Remaining…

TURN IN YOUR BELLRINGER!

May 18, 2009AGENDA:1 – Bellringer

2 – Powerpoint: Population Graphs

3 – Activity: Analyze the graph

HOMEWORK1.Finish graph

analysis (1 Page Minimum)

Linear Graph Example

Exponential Growth

Exponential growth until the carrying capacity is reached

New Vocabulary

• Carrying Capacity

• Density-dependent factor

• Density-independent factor

• Exponential Growth

• Life-history pattern

Carrying Capacity:

Density Dependent vs Density Independent Factors

• Space• Water • Nutrients/food• Shelter• Competition• Predation• Disease• Parasitism

• Natural Disaster• Temperature• Sunlight• Human

Activities• Physical

characteristics• Behaviors

Rapid Life History Patterns

• Most organisms which fit this category live in changeable or unpredictable environments.

• They have a small body size, mature rapidly, reproduce early & have a short life span.

• When the environment changes rapidly, most of the population dies & the survivors who hold the desirable trait go on to reproduce.

• Example: bacteria

Slow Life-History Pattern

• Usually large species that live in more stable environments.

• Example: bears, elephants, etc…

Activity Description (write this down!):

• Analyze graph (look at ALL details)Write 1 page describing1. Pattern of graph (linear, J-curve or S-

curve), organism(s) described, who would find this useful?

2. Separate the factors listed into either density dependent or density independent factors.

3. Summarize the graph in one paragraph.

Activity:

May 18, 2009AGENDA:1 – Bellringer

2 – Powerpoint: Population Graphs

3 – Activity: Analyze the graph

HOMEWORK1.Finish graph

analysis (1 Page Minimum)