Competition for Resources Among Consumers

  • Ivan Valiela


In the previous chapter we examined growth of populations whose reproductive rate was constant. In nature, the rate of population growth very often varies. If r varies randomly, a population may become extinct or, alternatively, suffer enormous increases in abundance, since the reproductive potential of any species is capable of producing very large numbers of new individuals. Since few environments are overwhelmed by living organisms, there must be mechanisms that inhibit increase in abundance as density increases. This, in brief, is the theory behind the logistic equation,* first suggested by P.F. Verhulst in 1838 and later derived independently by R. Pearl and L.J. Reed in 1920 (Hutchinson, 1978).


Reef Fish Interspecific Competition Intraspecific Competition Niche Breadth Adult Fish 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Ivan Valiela
    • 1
    • 2
  1. 1.Marine Biological LaboratoryBoston University Marine ProgramWoods HoleUSA
  2. 2.Department of BiologyBoston UniversityBostonUSA

Personalised recommendations