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We find that communities with greater abundance of naturalized species are more resource acquisitive aboveground and belowground, shorter, more shallowly rooted, and increasingly aligned with an independent strategy for belowground resource acquisition via thin fine roots with high specific root length. We observe shifts toward herbaceous-dominated communities but shifts within both woody and herbaceous functional groups follow community-level patterns for most traits. Patterns are remarkably similar across desert, grassland, and forest ecosystems. Our results demonstrate that the establishment and spread of naturalized species, likely in combination with underlying environmental shifts, leads to predictable and consistent changes in community-level traits that can alter ecosystem functions.<\/jats:p>","DOI":"10.1073\/pnas.2403120121","type":"journal-article","created":{"date-parts":[[2024,10,1]],"date-time":"2024-10-01T15:01:06Z","timestamp":1727794866000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":8,"title":["Naturalized species drive functional trait shifts in plant communities"],"prefix":"10.1073","volume":"121","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5427-7916","authenticated-orcid":false,"given":"Magda","family":"Garbowski","sequence":"first","affiliation":[{"name":"Botany Department, University of Wyoming, Laramie, WY 82071"},{"name":"Department of Animal and Range Sciences, New Mexico State University, Las Cruces, NM 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