Mycorrhizal types influence island biogeography of plants

• DOI: 10.1038/s42003-021-02649-2
• Publication Date: 2021-10-12T12:05:45Z
• Authors: Camille S. Delavaux; Patrick Weigelt; Wayne Dawson; Franz Essl; Mark van Kleunen; Christian König; Jan Pergl; Petr Pyšek; Anke Stein; Marten Winter; Amanda Taylor; Peggy A. Schultz; Robert J. Whittaker; Holger Kreft; James D. Bever
• Keywords: Insular biogeography; Ectomycorrhiza; Colonisation

Abstract Plant colonization of islands may be limited by the availability symbionts, particularly arbuscular mycorrhizal (AM) fungi, which have dispersal ability compared to ectomycorrhizal and ericoid (EEM) as well orchid (ORC) fungi. We tested for such differential island within contemporary angiosperm floras worldwide. found evidence that AM plants experience a stronger filter than other or non-mycorrhizal (NM) plant species, with decreased proportions native species on relative mainlands. This effect intensified isolation, non-endemic species. The proportion endemic increased consistent diversification filling niches left open filter. further humans overcoming initial Naturalized showed higher floras, pattern increasing isolation land-use intensity. work provides fungal symbionts shape subsequent diversification.