CRASH COURSE ECOLOGY #6 ECOLOGICAL SUCCESSION

How the makeup of a community changes over time starting from the day after a disturbance.

• ecological succession

• change

• high biodiversity

• soils

Tags

NGSS.MS-LS2-4

Disturbances that shake up the status quo within a community actually serve to ___________.

• make the community worse

• make the community better

• destroy the community

• nuclear war

Tags

NGSS.HS-LS2-6

NGSS.HS-LS2-7

This is when organisms populate an area for the first time.

• high biodiversity

• primary succession

• low biodiversity

• change succession

Once there were dense forests full of species, the asteroid hit & the forests died & were replaced...this is when...

• When organisms make their living colonizing a living place

• When organisms make their living colonizing a dead place

• When organisms make their living colonizing a ugly place

• When organisms make their living colonizing Mars

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-1

The outcome of a primary successional landscape is to _________ or ___________ soils.

• predictable, intermediate

• build, rebuild

• community, disturbance

• build, predictable

After primary succession the soils are ready, bigger plants can move in, this stage is called..

• populate

• first succession

• second succession

• Permian-Triassic

Tags

NGSS.MS-LS1-5

This community contains a predictable assemblage of species that would remain stable until the next big disturbance.

• populate community

• climax community

• lycophytes community

• dense forests

This prevents us from knowing what a community will look like 100 years after a disturbance.

• extinction

• biodiversity

• stochasticity

• biodiversity

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

We now know that an ecosystem is in later successional stages if it has...

• high biodiversity

• species

• populate

• change

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

For most of the history of public land management in the U.S., great swaths of forest were...

• large cities

• were allowed to burn

• cut down

• not allowed to be burned