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16 Cards in this Set
- Front
- Back
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Succession
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the long-term change in the composition of a community.
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Secondary succession
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the long-term change in the composition of a community in an area that already has soil.
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Zonation
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the arrangement or patterning of communities into parallel or sub-parallel bands, over a distance, in some environmental factor. E.g. changes is ecosystems up a mountain with increasing altitude.
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Plagioclimax
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the interference by humans that halts the process of succession. E.g. footpath erosion caused by trampling, agriculture, hunting, deforestation, clearance burning, grazing.
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Biodiversity
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refers to the amount of biological diversity per unit area.
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Species diversity
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refers to the variety of species per unit area.
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Habitat diversity
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refers to the range of different habitats in an ecosystem.
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Genetic diversity
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refers to the range of genetic material present in a gene pool or population of a species.
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Speciation
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is the process by which new species form
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Diversity
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the number and proportions of species present
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(disturbanceResilience
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ability of a system to recover after disturbance
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Inertia (persistence)
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resistance to being altered
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Isolation
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is the process by which two populations become separated by geographical, behavioral, genetic or reproductive factors.
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Family (e.g. marine families or terrestrial land families)
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A group of people descended from a common ancestor; a kin; a tribe.
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Genera (pl. of genus)
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A class or group with common attributes.
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Edge effects
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impact of changed environmental conditions at the edge of the reserves.
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