Succession Basics
Pioneers & Climax communities
Biomes & Climate
Aquatic Ecosystems
Human impact & Conservation
100

This term describes the gradual change in plant and animal communities over time.

What is succession?

100

These are the first organisms to live in a new or disturbed area.

What are pioneer species?

100

This factor most strongly determines which biome develops in an area.

What is climate?

100

Most lakes and ponds are considered this because they eventually fill in.

What are temporary ecosystems?

100

This occurs when fish are caught faster than they can reproduce.

What is overfishing?

200

This type of succession begins with bare rock and no soil.

What is primary succession?

200

This pioneer organism often grows on bare rock and helps form soil.

What are lichens?

200

Temperature and this factor work together to shape biomes.

What is precipitation?

200

These organisms float in water and perform photosynthesis.

What is phytoplankton?

200

This fishing practice damages ocean floors and coral reefs.

What is bottom trawling?

300

This type of succession happens after a disturbance where soil is still present.

What is secondary succession?

300

This term describes a stable, long-lasting community that results from succession.

What is a climax community?

300

This biome receives less than 25 cm (10 inches) of rain per year.

What is the desert?

300

As ponds fill in over time, they often change into this type of ecosystem.

What is a wet meadow or terrestrial ecosystem?

300

These are fish or animals caught accidentally and thrown away.

What is bycatch?

400

Lava flows and retreating glaciers are examples of events that cause this type of succession.

What is primary succession?

400

Compared to early successional communities, climax communities usually have more of this.

What is biodiversity (more species/interactions)?

400

This biome has grasses, few trees, and frequent fires.

What is temperate grassland?

400

This process explains how a pond slowly turns into land.

What is aquatic succession?

400

This legal agreement protects private land from development.

What is conservation easement?

500

Secondary succession usually happens faster than primary succession because this is already present.

What is soil (and seeds or roots)?
500

True or False: A climax community never changes.

What is false?

500

This biome has warm temperatures and heavy rainfall year-round.

What is the tropical rainforest?

500

Which aquatic ecosystem is NOT temporary?

What is the ocean?

500

Name ONE way humans can reset succession to an earlier stage.

What is farming, logging, fire, or flooding?