<?xml version="1.0" encoding="UTF-8"?>
<term>
  <id>14979</id>
  <title>redundancy hypothesis</title>
  <longtitle>IUPAC Gold Book - redundancy hypothesis</longtitle>
  <doi>10.1351/goldbook.14979</doi>
  <code>14979</code>
  <status>current</status>
  <definitions>
    <item>
      <id>1</id>
      <text>Hypothesis that many species are redundant, and their loss will not influence the community function as long as crucial (e.g., keystone and dominant) species populations are maintained.</text>
      <links>
        <item>
          <term>community</term>
          <url>https://goldbook.iupac.org/terms/view/14531</url>
        </item>
        <item>
          <term>population</term>
          <url>https://goldbook.iupac.org/terms/view/14932</url>
        </item>
      </links>
      <sources>
        <item>PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 936 (https://doi.org/10.1351/PAC-REC-08-07-09)</item>
      </sources>
    </item>
  </definitions>
  <altoutputs>
    <html>https://goldbook.iupac.org/terms/view/14979/html</html>
    <json>https://goldbook.iupac.org/terms/view/14979/json</json>
    <plain>https://goldbook.iupac.org/terms/view/14979/plain</plain>
  </altoutputs>
  <citation>Citation: 'redundancy hypothesis' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14979</citation>
  <license>The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms.</license>
  <collection>If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .</collection>
  <disclaimer>The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.</disclaimer>
  <accessed>2026-07-01T04:27:30+00:00</accessed>
</term>
