Homeostasis (Keystone Species)

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Deforestation

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The removal of trees faster than forests can replace themselves.

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Trophic Cascade

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Indirect effects in a community that are initiated by a predator.

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Biodiversity

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The number of different species in an area.

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Food Web

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A system of interlocking and interdependent food chains.

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Food Chain

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A series of steps in which organisms transfer energy by eating and being eaten.

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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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Ecosystem Stability

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The ability of an ecosystem to maintain its structure and function over time despite external stress.

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Energy Transfer

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The movement of energy through a food chain or food web, from producers to consumers.

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Producers

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Organisms that produce their own food through photosynthesis or chemosynthesis.

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Consumers

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Organisms that obtain energy by consuming other organisms.