{"term":{"id":"14633","title":"endemism","longtitle":"IUPAC Gold Book - endemism","doi":"10.1351\/goldbook.14633","code":"14633","status":"current","definitions":[{"id":1,"text":"Ecological state of being unique to a place.","notes":{"1":"There are two subcategories of endemism-paleoendemism and neoendemism. Paleoendemism refers to a species that was formerly widespread but is now restricted to a smaller area. Neoendemism refers to a species that has recently arisen, e.g., by hybridization (see  and is now classified as a separate species. This is a common process in plants especially those that exhibit polyploidy."},"sources":["PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 876 (https:\/\/doi.org\/10.1351\/PAC-REC-08-07-09)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/14633\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/14633\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/14633\/plain"},"citation":"Citation: 'endemism' 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.14633","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":"2026-04-21T11:49:23+00:00"}}