Ecosystem Succession Concepts

The video tutorial explains ecological succession, focusing on primary and secondary succession. It describes how ecosystems recover from disturbances, detailing the processes and timelines involved. Primary succession starts on bare rock, while secondary succession begins with existing soil, making it faster. The video also covers the concept of climax communities and the role of micro habitats in ecosystems.

What is a microhabitat?

• A type of ecosystem

• A small, specialized area within a habitat

• A large area where many species live

• A community of different species

What is a climax community?

• A stable community that remains unchanged over time

• A community with only one species

• A community with no predators

• A community that is constantly changing

Which of the following is NOT an example of a disturbance in an ecosystem?

• Volcanic eruption

• Human habitat destruction

• Photosynthesis

• Flood

What is the first stage of primary succession?

• Trees

• Grass

• Shrubs

• Pioneer species

How long can primary succession take to create a stable soil layer?

• Several years

• Thousands of years

• A few weeks

• A few months

What is the main difference between primary and secondary succession?

• Amount of sunlight

• Type of species involved

• Presence of soil

• Water availability

Which type of succession is faster?

• Neither, they are both slow

• Both are equally fast

• Secondary succession

• Primary succession

What typically initiates secondary succession?

• Receding glaciers

• Tectonic uplift

• Lava flows

• Wildfires

In secondary succession, what is the first type of plant to grow?

• Grass and wildflowers

• Trees

• Shrubs

• Lichens

What happens to a vegetable garden in a residential yard if it is abandoned?

• It becomes a desert

• It turns into a forest

• It remains unchanged

• Weeds and grass overtake it