Succession in Ecology

What is primary succession?

• The process of ecological succession that occurs in an area with extreme weather conditions

• The process of ecological succession that occurs in an aquatic environment

• The process of ecological succession that occurs in an area with existing vegetation

• The process of ecological succession that occurs in an area that has never been colonized before, such as bare rock or sand.

After a volcanic eruption, which species is most likely to be found colonizing the bare rock first?

• Daisy

• Pine tree

• Lichen

• Tulip

• Oak tree

After a forest fire, a certain area's ecosystem begins to recover. What is this process called?

• The process of ecological succession that occurs in an area where an existing community has been partially or completely destroyed, but the soil is still intact.

• The process of ecological succession that occurs in an area where the soil has been completely destroyed.

• The process of ecological succession that occurs in an area where the soil is intact but the existing community remains undisturbed.

• The process of ecological succession that occurs in an area where an existing community has been enhanced.

What is a climax community?

• A climax community is a temporary gathering of plants and animals that constantly changes

• A climax community is a community of plants and animals that is constantly struggling to survive

• A climax community is a community of organisms that is in a state of decline

• A climax community is a stable, self-sustaining community of plants and animals that has reached a state of equilibrium with its environment.

What is ecological succession?

• The process of introducing new species to an ecological community.

• The process of change in the species structure of an ecological community over time.

• The process of reducing the number of species in an ecological community over time.

• The process of maintaining the same species structure in an ecological community over time.

What are the differences between primary and secondary succession?

• Primary succession occurs in aquatic environments, while secondary succession occurs on land.

• The main differences between primary and secondary succession are the speed of the process and the amount of human intervention required.

• The differences between primary and secondary succession are the types of organisms involved and the temperature at which they occur.

• The main differences between primary and secondary succession are the starting point (bare rock vs. existing soil/vegetation) and the time it takes to establish a stable ecosystem.

Why are pioneer species important in ecological succession?

• Pioneer species are important in ecological succession because they help prepare the environment for the establishment of other plant species.

• Pioneer species are important in ecological succession because they have no impact on the environment.

• Pioneer species are important in ecological succession because they hinder the growth of other plant species.

• Pioneer species are important in ecological succession because they are only found in specific regions.

How does human activity impact ecological succession in a forest affected by wildfire?

• Human activity only impacts ecological succession in a positive way

• Human activity promotes ecological succession

• Human activity has no impact on ecological succession

• Human activity can disrupt ecological succession by causing habitat destruction, introducing invasive species, and altering natural disturbance regimes.

Consider a mature forest ecosystem. What role do the dominant tree species, often seen as climax species, play in this ecosystem?

• The dominant tree species, as climax species, are responsible for causing instability in the mature forest ecosystem.

• The dominant tree species have no impact on the population of other species within the mature forest ecosystem.

• The dominant tree species, as climax species, play a key role in maintaining the balance and stability of the mature forest ecosystem as they are well-adapted to the environmental conditions and help in regulating the population of other species.

• The dominant tree species, as climax species, are not well-adapted to the environmental conditions of the mature forest ecosystem.

In a forest ecosystem, what role do fungi and bacteria play during the process of ecological succession?

• They introduce new species to the forest floor.

• They break down fallen leaves and dead trees, recycling nutrients back into the soil.

• They primarily consume living plant material, reducing the forest's vegetation cover.

• They have no significant role in the process of ecological succession in a forest.