- plumage light green
- plumage light brown
- plumage yellow
- body size. medium small
- body size. medium
- body size. medium large
population exists in the southwestern portion of the island.
During this time, mutations may change the fitness of some
birds and their descendents in the environment.
Birds with traits that enhance their fitness are
more likely to survive and reproduce.
food, no predators, and light green foliage.
You have selected three phenotypes for birds that are representative
of the large range of phenotypes that could be present in the
population of birds. Of those that you selected, how fit do
you think each phenotype is in the current
environment? Record your ideas on the Student Sheet.
change in the three populations as thousands of years pass.
When prompted to do so, discuss with your group your
ideas and record them on the Student Sheet.
threat posed by available predators.
of this bird phenotype to utilize the resource, if
Record the similarities and differences you notice.
A hurricane has hit the island and some of your birds have been blown to three new areas!
Each area has a unique environment. Work with your group to create the Northeast environment. The other two environments will be created for you.
The simulation in the next part will stop every 50,000 years beginning at 500,000 years and ending at 1,000,000 years. This will give you a snapshot of the major changes in the bird populations and the environment during that time. While there are many other changes that could be occuring in the environment and the bird populations, they are not shown in this simulation.
- Observe and record on the Student Sheet the changes that have occurred in you assigned area.
- Discuss with your group the changes that occurred and the reasons for the changes.
For FOOD, you may only spend 3 points:
Selecting some costs 1 point
Selecting plentiful cost 2points
When you have selected all the environment variables, click CONTINUE.
The NORTHWEST and SOUTHEAST environments will be created automatically.
most recent birds from the original birds?
Please enter a description to identify your save point (E.g. John Smith)