Genetics and Populations - Populations in Ecosystems: Key Terms Flashcards
Abiotic
Ecological factor making up part of the non-biological environment of an organism
Adaptation
Alterations in pattern or structure resulting from natural selection that allow the organism to be fitter
Belt transect
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Biodiversity
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Biomass
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Biotic
Ecological factor making up part of the biological environment of an organism
Carrying capacity
The maximum stable population size of a species that an ecosystem can support
Climax community
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Community
All the living organisms in an ecosystem at a given time
Conservation
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Ecosystem
All the living and non-living components of a particular area
Environment
Natural biological factors that affect life in a particular place and time
Habitat
Where an organism normally lives, characterised by the physical conditions (abiotic factors) and other organisms present
Index of diversity
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Interspecific competition
Competition between organisms of different species
Intraspecific competition
Competition between organisms of the same species
Mark-release-recapture
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Niche
How an organism fits into its environment. What a species is like, where it occurs, what it eats and its interactions with other species. Only one species can occupy a given niche at a particular time.
Pioneer species
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Population
Group of individuals of the same species that occupy the same habitat at the same time
Primary succession
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Quadrat
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Species richness
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Non-motile organism
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Ecology
The study of organisms and their interaction with the environment
Predation
Where an organism kills and eats another organism
