Soil Protists in Three Neotropical Rainforests are Hyperdiverse and Dominated by Parasites
Soil Protists in Three Neotropical Rainforests are Hyperdiverse and Dominated by Parasites
ABSTRACT Animal and plant richness in tropical rainforests has long intrigued naturalist. More recent work has revealed that parasites contribute to high tropical tree diversity (Bagchi et al., 2014; Terborgh, 2012) and that arthropods are the most diverse eukaryotes in these forests (Erwin, 1982; Basset et al., 2012). It is unknown if similar patterns are reflected at the microbial scale with unicellular eukaryotes or protists. Here we show, using environmental metabarcoding and a novel phylogeny-aware cleaning step, that protists inhabiting Neotropical rainforest soils are hyperdiverse and dominated by the parasitic Apicomplexa, which infect arthropods and other animals. These host-specific protist parasites potentially contribute to the high animal diversity in the forests by reducing population growth in a density-dependent manner. By contrast, we found too few Oomycota to broadly drive high tropical tree diversity in a host-specific manner under the Janzen-Connell model (Janzen, 1970; Connell, 1970). Extremely high OTU diversity and high heterogeneity between samples within the same forests suggest that protists, not arthropods, are the most diverse eukaryotes in tropical rainforests. Our data show that microbes play a large role in tropical terrestrial ecosystems long viewed as being dominated by macro-organisms. Contact: dunthorn@rhrk.uni-kl.de
Bass David、Lara Enrique、Singer David、Bunge John、Siemensmeyer Tobias、Trautmann Isabelle、Romac Sarah、Berney C¨|dric、Seppey Christophe V. W.、Egge Elianne、Trueba Gabriel、Sernaker Sarah、Kozlov Alexey、Lentendu Guillaume、Mitchell Edward A.D.、Czech Lucas、Mah¨| Fr¨|d¨|ric、Wirth Rainer、Dunthorn Micah、Stamatakis Alexandros、de Vargas Colomban、Mayor Jordan
Department of Life Sciences, The Natural History Museum London||Centre for Environment, Fisheries & Aquaculture Science (Cefas)Laboratory of Soil Biodiversity, Universit¨| de NeuchatelLaboratory of Soil Biodiversity, Universit¨| de NeuchatelDepartment of Computer Science, Cornell UniversityDepartment of Ecology, University of Kaiserslautern, Erwin-Schr?dinger-Stra?eDepartment of Ecology, University of Kaiserslautern, Erwin-Schr?dinger-Stra?eCNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier||Sorbonne Universit¨|sCNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier||Sorbonne Universit¨|sLaboratory of Soil Biodiversity, Universit¨| de NeuchatelDepartment of Biosciences, University of Oslo, BlindernveienInstituto de Microbiolog¨aa, Universidad San Francisco de QuitoDepartment of Statistical Science, Cornell UniversityHeidelberg Institute for Theoretical Studies, Schlo?-WolfsbrunnenwegDepartment of Ecology, University of Kaiserslautern, Erwin-Schr?dinger-Stra?eLaboratory of Soil Biodiversity, Universit¨| de Neuchatel||Jardin Botanique de NeuchatelHeidelberg Institute for Theoretical Studies, Schlo?-WolfsbrunnenwegDepartment of Ecology, University of Kaiserslautern, Erwin-Schr?dinger-Stra?eDepartment of Ecology, University of Kaiserslautern, Erwin-Schr?dinger-Stra?e||Department of Life Sciences, The Natural History Museum LondonDepartment of Ecology, University of Kaiserslautern, Erwin-Schr?dinger-Stra?eHeidelberg Institute for Theoretical Studies, Schlo?-Wolfsbrunnenweg||Institute for Theoretical Informatics, Karlsruhe Institute of TechnologyCNRS, UMR 7144, Station Biologique de Roscoff, Place Georges Teissier||Sorbonne Universit¨|sDepartment of Forest Ecology and Management, Swedish University of Agricultural Sciences
环境生物学微生物学
Bass David,Lara Enrique,Singer David,Bunge John,Siemensmeyer Tobias,Trautmann Isabelle,Romac Sarah,Berney C¨|dric,Seppey Christophe V. W.,Egge Elianne,Trueba Gabriel,Sernaker Sarah,Kozlov Alexey,Lentendu Guillaume,Mitchell Edward A.D.,Czech Lucas,Mah¨| Fr¨|d¨|ric,Wirth Rainer,Dunthorn Micah,Stamatakis Alexandros,de Vargas Colomban,Mayor Jordan.Soil Protists in Three Neotropical Rainforests are Hyperdiverse and Dominated by Parasites[EB/OL].(2025-03-28)[2025-08-02].https://www.biorxiv.org/content/10.1101/050997.点此复制
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