Title: indirect ecological effect Long Title: IUPAC Gold Book - indirect ecological effect DOI: 10.1351/goldbook.14757 Status: current Definition Effect resulting from imposed biotic or abiotic factors which alter ecosystem properties that in turn favor or disfavor an ecological component of importance (e.g., a species) and thus indirectly lead to improved or reduced fitness of that species. Result of imposed biotic or abiotic factors allowing indigenous or new species to dominate, thereby affecting ecosystem composition. Related Terms - ecosystem: https://goldbook.iupac.org/terms/view/14619 - indigenous: https://goldbook.iupac.org/terms/view/14756 Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 900 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/14757/html - json: https://goldbook.iupac.org/terms/view/14757/json - xml: https://goldbook.iupac.org/terms/view/14757/xml Citation: Citation: 'indirect ecological effect' 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.14757 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: 2026-07-24T03:54:36+00:00