Population Ecology
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13 Terms
limiting factor
An factor that prevents a population from increasing
population density
The number of individuals in an area of a specific size
carrying capacity
Largest number of individuals in a population that an environment can support
keystone species
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.
population
A group of individuals that belong to the same species and live in the same area
biotic
living or once living parts of an ecosystem
abiotic
nonliving parts of an ecosystem
exponential growth
Growth pattern in which the individuals in a population reproduce at a constant rate, there is no limiting factor
logistic growth
Population growth that is controlled by limited resources
community
All the different populations that live together in an area
density dependent factors
limiting factor that depends on population size
density independent factor
limiting factor that affects all populations in similar ways, regardless of population size
population growth
the change in the population size over time, can be negative or positive
