12 terms

Ecology II

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Limiting Factors
A resource that is so scarce that it limits the size of a population
Carrying Capacity
The largest population that can be supported by a given environment and its resources
Competition
When two or more individuals or populations try to use the same resource such as food, water, shelter or space
Symbiosis
A close relationship between two species that often involves long-term interaction
Mutualism
A symbiotic relationship in which both organisms benefit
Commensalism
A relationship between two organisms in which one organism benefits and the other is not affected
Parasitism
A symbiotic relationship in which one organism benefits while the other is harmed
Co-evolution
Change over time that takes place in two species because of their close and long-term interactions with one another
Succession
A gradual development of a community over time
Primary Succession
The earliest development of a community in an area with no soil
Secondary Succession
The development of a community in an area where the ecosystem was destroyed but that has soil
Pioneer Species
The first organisms to colonize an uninhabited area