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Xhapter 14 vocab

Chapter 14 biology vocabulary

QuestionAnswer
ecological niche composed of all of the physical, chemical, and biological, factors that an organism needs to survive, stay healthy, and reproduce
competitive exclusion states when two species are competing for the same resources, one species will be better suited to the niche, and the other species will be pushed into another niche or become extinct
ecological equivalent species that occupy similar niches but live in different geographical regions
population density measurement of the number of individuals living in a defined space
population dispersion the way in which individuals of a population are spread in a area or volume
survivorship curve a generalized diagram showing the number of surviving members over time from a measured set of births
immigration the movement of individuals into a population from another population
emigration the movement of individuals out of a population and into another population
exponential growth when a population size increases dramatically over a period of time
logistic growth a population begins with a period of slow growth before leveling off at a stable size
population crash a dramatic decline in the size of a population over a short period of time
limiting factor the factor that has the greatest effect in keeping down the size of a population
density-dependent limiting factors limiting factors that are affected by the number of individuals in a given area
density-independent limiting factors the aspects of the environment that limit a population's growth regardless of the density of the population
succession the sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area
primary succession establishment and development of an ecosystem in an area that was previously uninhabited
pioneer species the first organisms that live in a previously uninhabited area
secondary succession the reestablishment of a damaged ecosystem in an area where the soil was left intact
Created by: Little Dreamer
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