Ecological Succession Slideshow

Multiple Choice

What is lichen?

• Lichen is a symbiotic relationship between fungi and algae.

• Lichen is a form of algae.
• Lichen is a symbiotic relationship between moss and soil.

• Lichen in a parasite that lives in the soil.

Dropdown

Lichen and moss produce​

Select answer

that break down rock into small ​

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. Then, when lichen and moss die, the decayed matter + new sediments form​

Select answer

!

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Click on a section that represents pioneer species

Multiple Choice

How do plants entered an ecosystem in a pioneer stage?

• Plants enter through animal migration.
• Plants are created from soil nutrients alone.
• Plants are introduced by human intervention.
• Plants enter through wind seed dispersal.

Reorder

Reorder the following stages of succession so far

• Bare Rock

• Lichen and Moss

• Soil is formed!

• Grasses

• Green stem plants, weeds

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2

3

4

5

• 1
• 2
• 3
• 4
• 5

Reorder

Reorder the following

• Lichen and Moss

• Grasses

• Herbaceousplants - green stems

• Shrubs - woody stems

• Large Trees, variety of trees, like shade

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Categorize

Options (10)

Brand new ecosystem

Ecosystem starts over

100s of years to complete

1000 of years to complete

Volcano lava/rock

Retreated Glacier

Flood

Logger comes in and clear cuts a forest

Starts with bare rock

Starts with soil

Organize these options into the right categories

Primary Succession

Secondary Succession

Multiple Choice

Do ecosystems end with the same climax community?

• Yes, they always end with the same climax community.

• No, they can end with different climax communities based on location.

• Climax communities are random and do not depend on location.

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Which of the following best demonstrates a climax community?

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Select the line on the graph that shows secondary succession.

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Select what kind of succession the following example represents:

A volcano erupts in the middle of the ocean. As the lava flows into the ocean, new rock is formed.

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Select what kind of succession the following example represents:

Wildfires will burn most vegetation and kill animals unable to flee the area. The nutrients are returned to the ground in the form of ash. Since the area has nutrient-rich soil, it can be recovered very quickly.