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Species Competition

Ecological Statistics

  1. Linda J. Young

Published Online: 15 JAN 2013

DOI: 10.1002/9780470057339.vac038.pub2

Encyclopedia of Environmetrics

Encyclopedia of Environmetrics

How to Cite

Young, L. J. 2013. Species Competition . Encyclopedia of Environmetrics. 5.

Author Information

  1. University of Florida, Gainesville, FL, USA

Publication History

  1. Published Online: 15 JAN 2013


Competition occurs when the interaction of two organisms has an adverse effect on both. The primary models for competition are based on the Lotka-Volterra equations. Replacement series experiments are a standard approach to evaluating the competitive relationships of two or more species. Measures of niche overlap, such as similarity indices, are often used as initial indicators of competition although they are recognized not to be true measures of competition. The probability of a species being present may be related to environmental variables and the presence of other species using logistic regression.


  • interference competition;
  • exploitative competition;
  • Lotka–Volterra equations;
  • replacement series experiments;
  • similarity indices;
  • niche overlap;
  • logistic regression