FamPlex Thesaurus for long-term ecological research, monitoring, experiments Source
http://purl.obolibrary.org/obo/FPLX_GYS http://vocabs.lter-europe.net/EnvThes/EUUnits_74 LOOM
http://purl.obolibrary.org/obo/FPLX_GAP http://vocabs.lter-europe.net/EnvThes/10386 LOOM