Chapter Six Vocab.

	Non-living.
	A pattern of growth that increases at a constant amount per unit time, such as 1,2,3,4, or 1,3,5,7.
	Pertaining to life; environmental factors created by living organisms.
	The maximum reproductive rate of an organism, given unlimited resources and ideal environmental conditions.
	The maximum number of individuals of any species that can be supported by a particular ecosystem on a long-term basis.
	A population founded when just a few members of a species survive a catastrophe event or colonize new habitat geographically isolated from other members of the same species.
	A sudden population decline; also caled a population crash.
	The movement of members from a population.
	All the limiting factors that tend to reduce population growth rates and set the maximum allowable population size or carrying capacity of an ecosystem.
	Growth at a constant rate of increase per unit of time; can be expressed as a constant fraction or exponent.
	The physical ability to reproduce.
	Measurement of actual number of offspring produced through sexual reproduction; usually described in terms of number of offspring of females, since paternity can be difficult to determine.
	The effect on a population founded when just a few members of a species survive a catastrophic event or colonize new habitat geographically isolated from other members of the same species.
	The gradual changes in gene frequencies in a population due to random events.
	Growth that follows a geometric pattern of increase, such as 2,4,8,16.
	A population explosion followed by a population crash.
	The study of rates of colonization and extinction of species on islands or other isolated areas based on size, shape, and distance from other inhabited regions.
	A growth curve that depicts exponential growth; called such because of its shape.
	The average age that a new-born infant can expect to attain in a particular time and place.
	The longest period of life reached by a type of organism.
	Growth rates regulated by internal and external factors that establish an equilibrium with environmental resources.
	A collection of populations that have regular or intermittent gene flow between geographically separate units.
	The number of individuals needed for long-term survival of rare and endangered species.
	Death rate in a population; the probability of dying.
	The production of new individuals by birth, hatching, germination, or cloning.
	The extent to which a population exceeds the carrying capacity of its environment.
	A sudden population decline caused by predation, waste accumulation, or resource depletion; also called a dieback.
	Growth of a population at exponential rates to a size that exceeds environmental carrying capacity; usually followed by a population crash.
	A curve that depicts logistic growth; called such because of its shape.
	Diseases caused or accentuated by social stress such as crowding.
	The percentage of a population reaching a given age or the proportion of the maximum life span of the species reached by an individual.