Ecological succession

What is ecological succession?

• A series of gradual changes after a disturbance (damage)

• Changes that only happen when species die

• A series of changes that cause a population to increase or decrease

• An instant change caused by a disturbance

A disturbance

• changes the environment for a short period of time.

• changes the environment for a long period of time.

• is a slow process of organisms replacing each other.

• is a quick process of organisms replacing each other.

____ is a type of disturbance.

• A fire

• A flood

• Farming

• All the above

Tags

NGSS.MS-LS2-4

Changes to the climate cause _____.

• plant cycles to change

• animals move to new areas.

• disruption to food chains.

• all the above.

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS2-5

NGSS.MS-ESS3-4

succession that occurs in an area with no soil

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

succession that occurs in an area where soil is already present

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

the first organisms that appear in an ecological community

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

this type of succession occurs after a forest fire

• primary succession
• secondary succession
• both

An example of a pioneer species in primary succession is..

• lichens
• trees and shrubs
• grasses 
• insects

The type of succession that occurs after a volcanic event...

• primary succession
• secondary succession

Tags

NGSS.MS-ESS2-2