The flashcards below were created by user
8thgradeclass
on FreezingBlue Flashcards.
-
all of the biotic and abiotic factors in the are where an organism lives
habitat
-
composed of all of the physical, chemical, and biological factors that a species needs to stay healthy or reproduce
ecological niche
-
two species are competing for the same resources
competitive exclusion
-
species that occupy similar niches but live in different geographical regions
ecological equivalents
-
occurs when two organisms fight for the same limited resources
competition
-
the process by which one organism captures and feeds upon another organism
predation
-
a close, ecological relationship between two or more organisms of different species
symbiosis
-
an interspecies interaction in which both organisms benefit from another
mutualism
-
a relationship between two organisms in which one recieves an ecological
commensalism
-
a relationship similar to predation in that one organism benefits while the other is harmed
parasitism
-
a measurement of the number of individuals living in a defined space
population density
-
the way in which individuals of a population are spread in an area or volume
population dispersion
-
generalized diagram showing the number of surviving members over time from a measured set of births
survivorship curve
-
the movement of individuals into a population from another person
immigration
-
the movement of individuals out of a populations and into another
emigration
-
occurs when a population size increases dramatically over a period of time
exponential growth
-
a population begins with a period of slow growth followed before leaving off at a stable size
logistic growth
-
the maximum number of individuals of a particular species that the environment can normally and consistently support
carrying capacity
-
a dramatic decline in the size of a population over a short period of time
population crash
-
the factor that has the greatest effect in keeping down the size of a population
limiting factor
-
limiting factors that are affected by the number of individuals in a given area
density-dependent limiting factors
-
the aspects of the environment that limit a population's growth regardless of the density of the population
density-independent limiting factors
-
the sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area
succession
-
establishment and development of an ecosystem
primary succession
-
the first organisms that lived in previously uninhabited area
pioneer species
|
|