Ecology- B20 1-10 (Scientific Methods - Succession)

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What is Type III survivorship curve?

Back

Describes organisms with a high death rate (or low survivorship rate) immediately following birth, such as bacteria, fish, and invertebrates.

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What is a food chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

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What is competition in ecology?

Back

The interaction between organisms or species in which both are harmed when they compete for limited resources.

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What is the competitive exclusion principle?

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The principle stating that two species competing for the same resources cannot coexist at constant population values.

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What is an ecological niche?

Back

The role and position a species has in its environment, including all interactions with biotic and abiotic factors.

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What is the advantage of species having different niches?

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There is less competition for food and resources among species.

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What is a food web?

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A complex network of feeding relationships among various organisms in an ecosystem.

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What is a predator-prey relationship?

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An interaction where one organism (the predator) hunts and eats another organism (the prey).

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What is primary succession?

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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.