APES1 | Unit 2 Review

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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species, genetic diversity, and ecosystem diversity.

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What is the difference between primary and secondary succession?

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Primary succession occurs in lifeless areas where soil has not yet formed, while secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact.

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What is species richness?

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Species richness is the number of different species represented in a given ecological community, landscape, or region.

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Why is high biodiversity important for ecosystems?

Back

High biodiversity increases ecosystem resilience, allowing it to better withstand environmental changes and disturbances.

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What factors can affect island biodiversity?

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Island biodiversity can be affected by size, distance from the mainland, habitat diversity, and resource availability.

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What is a biome?

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A biome is a large geographical biotic unit, a major community of plants and animals with similar life forms and environmental conditions.

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What is the role of pioneer species in succession?

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Pioneer species are the first organisms to colonize previously disrupted or damaged ecosystems, initiating the process of ecological succession.

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What is ecological resilience?

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Ecological resilience is the ability of an ecosystem to recover from disturbances and return to its original state.

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What is the significance of volcanic eruptions in primary succession?

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Volcanic eruptions create new landforms and provide bare rock, which serves as a substrate for primary succession to begin.

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How do forest fires contribute to secondary succession?

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Forest fires can clear out existing vegetation, allowing new species to establish and leading to a regrowth of the ecosystem.