Show:
Natural Disturbances
Succession
Primary Succession
Secondary Succession
Miscellaneous
100
Earthquakes, Volcanic eruptions, Landslides, floods, tsunamis, hurricanes, and forest fire.
What are natural disturbances?
100

What are the 2 types of succession?

Primary and Secondary

100
What is an example of primary succession?
Volcano erupting and the lava forms a solid ground and turns into an island.
100

How an organism changes in order to be a better fit for their environment.

What is an adaptation? p.108

100

The length of time that it takes a community to mature

What is centuries (hundreds of years) - p. 106

200

When ecosystem changes occur quickly or last over a long period of time, ________populations do not survive.

What is most? (p. 108)
200
A new island is formed by a volcano.
What is a primary succession
200
The first species to colonize a newly formed island.
What is pioneer species
200
What is the difference between primary and secondary succession
Primary is the establishment of life where life has never existed, secondary is the succession where life has existed.
200
Secondary succession is slower than primary succession. True or False.
False.
300

Name two parts of an ecosystem affected by natural disturbances.

What are physical and biological components of an ecosystem? p. 106

300
After a forest is burned to the ground, the soil remains so new life can form.
What is secondary succession
300

_____ and _____ break down rocks to form soil.

mosses and lichens.

300

True or false: Hurricanes always result in primary succession.

False

300

An adaptation of pine trees to ensure species survival after a wildfire.

What are heat-resistant seeds? p. 108

400

Name two potential causes of a devastating wildfire.

Whare are human activities and natural system processes/cycles  p. 106

400

A plant or animal that establishes itself into a community.

What is colonize?

400

What is required for plants to grow.

What is soil? p. 105

400

How seeds reach new soil.

What are wind, water and birds? p. 106

400

What are the last species that would appear on a newly formed island?

Large animals and bigger trees.

500
Slowly life returns to a destroyed ecosystem. Large plants move in followed by________.
large animals
500
A mature ecosystem that is mostly stable over time.
What is climax community
500

How pioneer species are carried to an area of primary succession.

What is wind or water? p. 105

500

The type of change occurring in a climax community.

What is slow? p. 106

500

The year Mt. St. Helens erupted, causing both primary and secondary succession.

What is 1980?