Group of organisms sharing common characteristics that interbreed and produce fertile offspring.
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Population
Group of organisms of the same species living in the same area at the same time which are capable of interbreeding.
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Habitat
The environment in which a species normally lives, the living space.
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Niche
Part of an ecosystem that has all the things an organism needs in order to survive. Only one population can inhabit the same niche at one time.
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Fundamental niche
Full range of conditions and resources in which a species could survive and reproduce.
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Realized niche
Actual conditions in which a species exists due to biotic interactions.
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Biotic factors
Biotic = living. Factors or interaction that are related to living components and that influence the organisms and ecosystem.
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Abiotci factors
Abiotic = nonliving. Factors or interaction that are related to nonliving components and that influence the organisms and ecosystem.
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Interspecific competition
Individuals of different species competing for the same resources. May result in a balance (sharing) or in competitive exclusion (one species totally outcompetes the other).
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Competitive exclusion
Competition for resources which controls population size. The superior competitor (better predator) excludes out the inferior competitor (weaker predator).
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Intraspecific competition
Members of the same species competing for the same resource.
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Predation
When one organism (predator) eats another (prey). Consumption of one organism by another.
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Herbivory
An animal (herbivore) eating a green plant. Some plants have defense mechanisms against this (E.g. thorns, stinging mechanisms, toxic chemicals).
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Parasitism
An organism that depends on another (host) for its survival. Parasite benefits, host is harmed (+ -).
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Commensialism
When one organism lives on or with another but the host does not get harmed (+ 0).
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Mutualism
Relation btw multiple species in which all benefit and non suffer (+ +).
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Limiting factors
All the biotic and abiotic factors or interactions that limit the population size or that slow down the population growth as it reaches its carrying capacity.
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Carrying capacity
The maximum number of a species or a 'load'that can be sustainably supported by a given area, by a habitat/ecosystem.
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Other cards in this set
Card 2
Front
Group of organisms of the same species living in the same area at the same time which are capable of interbreeding.
Back
Population
Card 3
Front
The environment in which a species normally lives, the living space.
Back
Card 4
Front
Part of an ecosystem that has all the things an organism needs in order to survive. Only one population can inhabit the same niche at one time.
Back
Card 5
Front
Full range of conditions and resources in which a species could survive and reproduce.
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