Title: maturity index Long Title: IUPAC Gold Book - maturity index DOI: 10.1351/goldbook.14830 Status: current Definition Index for pollution based on the proportions of species in a soil nematode community that fall into various categories ranging from colonizers (\(r\mbox{-}\rm{strategists}\)) to persisters (\(k\mbox{-}\rm{strategists}\)). Related Terms - community: https://goldbook.iupac.org//terms/view/14531 - k-strategy: https://goldbook.iupac.org//terms/view/14782 - r-strategy: https://goldbook.iupac.org//terms/view/15005 - soil: https://goldbook.iupac.org//terms/view/15036 Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 910 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/14830/html - json: https://goldbook.iupac.org/terms/view/14830/json - xml: https://goldbook.iupac.org/terms/view/14830/xml Citation: Citation: 'maturity index' 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.14830 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. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. Accessed: 2026-06-20T01:22:28+00:00