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24 Cards in this Set

  • Front
  • Back
Biotic Potential
Maximum population growth rate under ideal conditions.
Carrying capacity
Largest number of organisms of a particular species that can be maintained indefintely by a given environment.
Character displacement
Tedency for characteristics to be more divergent when similar species belong to the same community than when they are isolated from one another.
Climax community
In ecology, community that results when succession has come to an end.
Group of individuals having a statistical factor in common, such as year of birth, in a population study.
Joint evolution in which one species exerts slective pressure on the other species.
Assemblage of populations interacting with one another with the same environment.
Symbiotic relationship in which one species is benefited, and the other is neither harmed nor benefited.
Ecological succession
The gradual replacement of communites in an area following a disturbance(secondary succession) or the creation of new soil(Primary succession).
Ecological niche
Role an organism plays in its community, inculding its habits and its interactions with other organisms.
Environmental resistance
Sum total of factors in the environment that limit the numerical increase of a population in a particular region.
Place where an organism lives, and is able to survive and reproduce.
Interspecific competition
Were similar species try to occupy the same niche, they then compete with one another for a share of resources, and in this way the number of niches increases.
Limiting factor
Resource or environmental condition that restrics the abundance and distribution of an organism.
keystone species
Species whose acivites have a signigfcant role in determining community structure.
Logistic growth
Population increase that results in an S-shaped curve; growth is slow at first, steepens, and then levels off due to environmental resistance.
Symbiotic relationship in which both species benefit in terms of growth and reproduction.
Symbitoic relationship in which one species(parasite) benefits in terms of growth and reproduction to the harm of the other species(host).
Pioneer species
Early colonizer of barren or disturbed habitats that usually has a rapid growth and high dispersal rate.
Grup of organisms of the same species occupying a certain area and sharing a common gene pool.
A favorable life history strategy under certain enviromental conditions; characterized by a high reproductive rate with little or no attention give to offspring survival.
Relationship that occurs when two different species live together in a unique way; it may be beneficial, neutral, or derimental to one and/or the other species.
Probability of newborn individuals of a cohort surviving to particular ages.
A favorable life-history strategy under stable envronmental conditions characterized by the production of a few offspring with much attention given to offspring survial.