APES Unit 2 Review

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What is primary succession?

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Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption or glacier retreat.

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What is secondary succession?

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Secondary succession is the process of ecological change that occurs in an area where soil is already present, typically after a disturbance like a fire or flood.

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What is a climax community?

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A climax community is a stable and mature ecological community that has reached a steady state, often characterized by a diverse array of species.

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What are ecosystem services?

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Ecosystem services are the benefits that humans receive from ecosystems, including provisioning, regulating, cultural, and supporting services.

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What is the difference between cultural and recreational ecosystem services?

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Cultural ecosystem services refer to non-material benefits such as spiritual enrichment and aesthetic enjoyment, while recreational services involve activities like tourism and outdoor recreation.

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What is an aquatic indicator species?

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An aquatic indicator species is a species whose presence, absence, or abundance reflects the health of an aquatic ecosystem.

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What factors impact ecological tolerance?

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Factors that impact ecological tolerance include temperature, pH, humidity, and availability of resources.

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What is ecological tolerance?

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Ecological tolerance refers to the range of conditions (such as temperature and pH) that a species can withstand before experiencing negative effects.

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What is a natural disruption to an ecosystem?

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A natural disruption is an event that causes significant changes to an ecosystem, such as volcanic eruptions, hurricanes, or earthquakes.

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What is air pollution classified as in terms of ecosystem disruption?

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Air pollution is classified as a human-induced disruption, not a natural disruption.