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interspecific competition

in a community competition for resources between members of different species


interaction in which one organism captures and feeds on another organism


symbiotic relationship in which one organism lives in or on another organism (the host) and consequently harms it


symbiotic relationship in which both species benefit from the relationship


symbiotic relationship in which one member of the association benefits and the other is neither helped nor harmed


an organism that is killed and eaten by another organism

predator-prey relationship

relationship that has evolved between two organisms, in which one organism has become the prey for the other


evolution in which two or more species interact and exert selective pressures on each other that can lead each species to undergo adaptations

resource partioning

Species end up sharing or splitting the resource, which makes them no longer in competetion (Hawks & Owls--different time)

population dynamics

The study of how complex interactions between biotic and abiotic factors influence variations in population size.

age structure

the distribution of individuals among different ages in a population

biotic potential

the maximum reproductive rate of an organism, given unlimited resources and ideal environmental conditions

intrinsic rate of increase

rate at which the population of a species would grow if it had unlimited resources

environmental resistance

All the limiting factors that act together to limit the growth of a population.

carrying capacity

largest number of individuals of a population that a environment can support

logistic growth

Growth rates regulated by internal and external factors that establish an equilibrium with environmental resources

secondary succession

refers to the channges after a communty is disrupted after a natural disaster or human actiona


The reluctance of any organism to change its state of motion

nonnative species

Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans.

primary succession

an ecological succession that begins in a an area where no biotic community previously existed


the ability to recover

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