Definitions
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| Succession | The process by which the species composition of a community changes over time.
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| Seral stage | Each stage of community change during the process of succession.
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| Pioneer species | The earliest species to arrive at a site.
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| Climax community | The final seral stage in the process of succession.
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| Chronosequence | A sequence of communities that exist over time at a given location.
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| Primary succession | The development of communities in habitats that are initially devoid of plants and organic soil, such as sand dunes, lava flows, and bare rock.
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| Secondary succession | The development of communities in habitats that have been disturbed and contain no plants but still contain an organic soil.
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| Facilitation | A mechanism of succession in which the presence of one species increases the probability that a second species can become established.
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| Inhibition | A mechanism of succession in which one species decreases the probability that a second species will become established.
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| Priority effect | When the arrival of one species at a site affects the subsequent colonization of other species.
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| Tolerance | A mechanism of succession in which the probability that a species can become established depends on its dispersal ability and its ability to persist under the physical conditions of the environment.
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| Transient climax community | A climax community that is not persistent.
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| Fire-maintained climax community | A successional stage that persists as the final seral stage due to periodic fires.
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| Grazer-maintained climax community | When a successional stage persists as a final seral stage due to intense grazing.
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Popular Ecology sets