Abiotic Factors: Abiotic components are the nonliving components of the biosphere.
Chemical and geological factors, such as rocks and minerals, and physical factors, such
as temperature and weather, are referred to as abiotic components.
Abundance: the number of individuals in a population.
Biogeographic region: an area of plant and animal distribution having similar or shared
characteristics all throughout.
Biome: a complex biotic community characterized by distinct animal and plant species
and maintained under climatic conditions of the region.
Biotic Factors: anything that effects the living organism that is itself alive.
Carrying Capacity: the maximum equilibrium number of organisms of a particular
species that can be supported indefinitely in a given environment.
Climate: the composite or generally prevailing weather conditions of a region, as
temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds,
throughout the year, averaged over a series of years.
organisms living with, on or in another, where one organism benefits
and the other one is neutral. (+,0)
Community: an assemblage of interacting populations occupying a given area.
the struggle among organisms, both of the same and of different species,
for food, space, and other vital requirements.
the effect of one species on another.
Competitive exclusion principle: when two species compete for the same critical
resources within an environment, one of them will eventually outcompete and displace
The displaced species may become locally extinct, by either migration or
death, or it may adapt to a sufficiently distinct niche within the environment so that it
continues to coexist noncompetitively with the displacing species.
Competitive release: the expansion of a species’ ecological niche associated with the lack
of competition with other species.
The number of individuals per unit of habitat