Exercise 3.3: Succession

1. What is the definition of a climax community?

<  >

2. What is the definition of secondary succession?

<  >

3. Name 2 pioneer species in your community:

<  >

4. Using the information from the website to complete the following chart on plant succession in Glacier Bay National Park: http://www.glacierbay.org/wildlife.html

Look for a section called "Plant Succession" .

Plant Order

Plant names

1 - Primary Species

2

3

4

5 - Climax Species

 

5. In 1980, Mount St. Helens erupted in Washington State, just south of British Columbia. How does succession occur after a volcano has destroyed an area? Use the information from the website to answer the following questions: http://www.plt.org/stuff/contentmgr/files/1/47089543432aae6ee76a2c1d9fd698cf/files/focus_on_forests_activity_2_sp_1_mount_st_helens.pdf

a. Before 1980, what types of trees were in the forests surrounding Mount St. Helens? Were these new or old growth forests?

<  >

b. After 1980, what were two of the first plant species to begin re-establishing themselves after the explosion? How many years after the volcano's explosion were these species seen?

<  >

c. After 1980, what were five animal species to begin re-establishing themselves after the explosion? 

<  >