14615 IUPAC Gold Book - ecological mortality 10.1351/goldbook.14615 14615 current synonym: ecological death 1 Toxicant-related diminution of fitness of an individual functioning within an ecosystem that is of a magnitude sufficient to be equivalent to somatic death. This concept implies that an individual organism may be so incapacitated by an environmental change that, though still alive, its contribution to the ecosystem becomes negligible. ecosystem https://goldbook.iupac.org//terms/view/14619 PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 872 (https://doi.org/10.1351/PAC-REC-08-07-09) https://goldbook.iupac.org/terms/view/14615/html https://goldbook.iupac.org/terms/view/14615/json https://goldbook.iupac.org/terms/view/14615/plain Citation: 'ecological mortality' 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.14615 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-04-21T12:09:01+00:00