secondary succession
Ecological succession in an area in which natural vegetation has been removed or destroyed but the soil is not destroyed. See ecological succession. Compare primary succession.
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Chapter 8 - Community Ecology: Structure, Species Interactions, Succession, and Sustainability
resource partitioning
Process of dividing up resources in an ecosystem so species with similar needs (overlapping ecological niches) use the same scarce resources at different times, in different ways, or in different places. See ecological niche, fundamental niche, realized niche.
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resilience
Ability of a living system to restore itself to original condition after being exposed to an outside disturbance that is not too drastic. See constancy, inertia.
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realized niche
Parts of the fundamental niche of a species that are actually used by that species. See ecological niche, fundamental niche.
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primary succession
Ecological succession in a bare area that has never been occupied by a community of organisms. See ecological succession. Compare secondary succession.
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prey
Organism that is captured and serves as a source of food for an organism of another species (the predator).
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predator-prey relationship
Interaction between two organisms of different species in which one organism, called the predator, captures and feeds on parts or all of another organism, called the prey.
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predator
Organism that captures and feeds on parts or all of an organism of another species (the prey).
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predation
Situation in which an organism of one species (the predator) captures and feeds on parts or all of an organism of another species (the prey).
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precautionary principle
When there is scientific uncertainty about potentially serious harm from chemicals or technologies, decision makers should act to prevent harm to humans and the environment. See pollution prevention.
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