Chapter 6: Communities and Ecosystem Dynamics

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What is biodiversity?

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Biodiversity refers to the variety of species in a certain area, including the diversity of ecosystems and genetic diversity within species.

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What is a habitat?

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A habitat is a place where an organism makes its home, providing the necessary resources for survival.

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What is ecological succession?

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Ecological succession is the process by which ecosystems change and develop over time, leading to a more stable community.

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What is primary succession?

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Primary succession occurs in an area where soil is not present, such as on newly formed rock, and begins with pioneer species.

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What is secondary succession?

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Secondary succession occurs in areas where soil is already present, following disturbances that do not completely destroy the ecosystem.

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What are pioneer species?

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Pioneer species are the first organisms to colonize previously uninhabited land, playing a crucial role in primary succession.

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What is a niche?

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A niche is the role or function of an organism within its ecosystem, including its habitat, resource use, and interactions with other organisms.

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What factors affect biodiversity?

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Factors affecting biodiversity include habitat destruction, climate change, pollution, invasive species, and overexploitation of resources.

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What is an ecosystem?

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An ecosystem is a community of living organisms interacting with their physical environment, including both biotic and abiotic components.

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What is the difference between primary and secondary succession?

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Primary succession starts on bare rock without soil, while secondary succession occurs in areas where soil is already present after a disturbance.