Ch5
Number of individuals per unit are
population
exponential growth
density independent limiting factor
area in which an organism lives, including the biotic/ abiotic factors that affect it
habitat
single species that is not usually abundant in a community yet exerts strong control on the structure of a community
keystone species
Way individuals are spread out across their range
population distribution
growth pattern in which a populations growth slows and then stops following a period of exponential growth
logistic growth
series of gradual changes that occur in a community following a disturbance
ecological succession
full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditons
niche
relationship in which two species live close together
symbiosis
number of males and females of each age in a population
largest number of individuals of a particular species that a particular environment can support
carrying capacity
succession in which an area no trace of previous community is present
primary succession
ability of an organism to survive and reproduce under circumstances that differ from its optimal conditions
symbiotic relationship where one organism benefits and other is neither helped nor harmed
commensalism
movement of individuals into an area occupied by an existing population
immigration
factor that causes population growth to decrease
limiting factor
area in which its partially destroyed
secondary succession
any necessity of life, such as water, nutrients, light, food, or space
resource
symbiotic relationhsip where both species benefit
mutualism
movement of individuals out of an area
emmigration
limiting factor that depends on population density
density dependent limiting factor
pioneer species
principle that states that no two species can occupy the same niche in the same habitat at the same time
competitive exclusion principle
relation ship in which an organism lives inside or on another organism while harming it
parasitism