Communties and Interactions

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What is a density-independent limiting factor?

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A factor that affects population size regardless of the population's density, such as natural disasters.

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What is an invasive species?

Back

A non-native (not naturally found) species added to an area that can disrupt local ecosystems.

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What does K-selected species mean?

Back

Species that provide substantial parental care and have fewer offspring, often leading to a stable population.

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What does r-selected species mean?

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Species that produce many offspring with little parental care, often leading to rapid population growth.

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What is primary succession?

Back

The process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption.

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What is secondary succession?

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The process of ecological change that occurs in an area where a disturbance has destroyed an existing community but left the soil intact.

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What is ecological succession?

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The gradual process of change and replacement in the species composition of a community over time.

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What is a keystone species?

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A species that has a disproportionately large effect on its environment relative to its abundance.

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What is a natural disaster?

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A catastrophic event that causes significant disruption to the environment, such as earthquakes, floods, or hurricanes.

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What is predation?

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The interaction where one organism (the predator) kills and eats another organism (the prey).