1. all of the biotic and abiotic factors in the are where an organism lives
  2. composed of all of the physical, chemical, and biological factors that a species needs to stay healthy or reproduce
    ecological niche
  3. two species are competing for the same resources
    competitive exclusion
  4. species that occupy similar niches but live in different geographical regions
    ecological equivalents
  5. occurs when two organisms fight for the same limited resources
  6. the process by which one organism captures and feeds upon another organism
  7. a close, ecological relationship between two or more organisms of different species
  8. an interspecies interaction in which both organisms benefit from another
  9. a relationship between two organisms in which one recieves an ecological
  10. a relationship similar to predation in that one organism benefits while the other is harmed
  11. a measurement of the number of individuals living in a defined space
    population density
  12. the way in which individuals of a population are spread in an area or volume
    population dispersion
  13. generalized diagram showing the number of surviving members over time from a measured set of births
    survivorship curve
  14. the movement of individuals into a population from another person
  15. the movement of individuals out of a populations and into another
  16. occurs when a population size increases dramatically over a period of time
    exponential growth
  17. a population begins with a period of slow growth followed before leaving off at a stable size
    logistic growth
  18. the maximum number of individuals of a particular species that the environment can normally and consistently support
    carrying capacity
  19. a dramatic decline in the size of a population over a short period of time
    population crash
  20. the factor that has the greatest effect in keeping down the size of a population
    limiting factor
  21. limiting factors that are affected by the number of individuals in a given area
    density-dependent limiting factors
  22. the aspects of the environment that limit a population's growth regardless of the density of the population
    density-independent limiting factors
  23. the sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area
  24. establishment and development of an ecosystem
    primary succession
  25. the first organisms that lived in previously uninhabited area
    pioneer species
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