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Biodiversity of leaf litter fungi in streams along a latitudinal gradient

  • Sahadevan Seena*
  • , Felix Bärlocher
  • , Olímpia Sobral
  • , Mark O. Gessner
  • , David Dudgeon
  • , Brendan G. McKie
  • , Eric Chauvet
  • , Luz Boyero
  • , Verónica Ferreira
  • , André Frainer
  • , Andreas Bruder
  • , Christoph D. Matthaei
  • , Stefano Fenoglio
  • , Kandikere R. Sridhar
  • , Ricardo J. Albariño
  • , Michael M. Douglas
  • , Andrea C. Encalada
  • , Erica Garcia
  • , Sudeep D. Ghate
  • , Darren P. Giling
  • Vítor Gonçalves, Tomoya Iwata, Andrea Landeira-Dabarca, Damien McMaster, Adriana O. Medeiros, Josheena Naggea, Jesús Pozo, Pedro M. Raposeiro, Christopher M. Swan, Nathalie S.D. Tenkiano, Catherine M. Yule, Manuel A.S. Graça
*Corresponding author for this work
  • University of Coimbra, Marine and Environmental Sciences Center
  • Universidade do Minho
  • Mount Allison University
  • Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB)
  • Berlin Institute of Technology (TU Berlin)
  • Berlin Brandenburg Institute of Advanced Biodiversity Research (BBIB)
  • University of Hong Kong
  • Swedish University of Agricultural Sciences
  • CNRS and Université Paul Sabatier
  • University of the Basque Country (UPV/EHU)
  • Ikerbasque Basque Foundation for Science
  • James Cook University Queensland
  • University of Coimbra
  • UiT the Arctic University of Norway
  • University of Otago
  • University of Eastern Piedmont
  • Mangalore University
  • Universidad Nacional del Comahue -CONICET
  • Crawley Western Australia
  • Charles Darwin University
  • Yenepoya (Deemed to Be University)
  • Friedrich Schiller University Jena
  • University of the Azores
  • University of Yamanashi
  • Federal University of Bahia
  • Monash University Malaysia
  • University of Maryland, Baltimore County
  • Université Julius N'Yerere de Kankan
  • University of the Sunshine Coast

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

Global patterns of biodiversity have emerged for soil microorganisms, plants and animals, and the extraordinary significance of microbial functions in ecosystems is also well established. Virtually unknown, however, are large-scale patterns of microbial diversity in freshwaters, although these aquatic ecosystems are hotspots of biodiversity and biogeochemical processes. Here we report on the first large-scale study of biodiversity of leaf-litter fungi in streams along a latitudinal gradient unravelled by Illumina sequencing. The study is based on fungal communities colonizing standardized plant litter in 19 globally distributed stream locations between 69°N and 44°S. Fungal richness suggests a hump-shaped distribution along the latitudinal gradient. Strikingly, community composition of fungi was more clearly related to thermal preferences than to biogeography. Our results suggest that identifying differences in key environmental drivers, such as temperature, among taxa and ecosystem types is critical to unravel the global patterns of aquatic fungal diversity.

Original languageEnglish
Pages (from-to)306-315
Number of pages10
JournalScience of the Total Environment
Volume661
DOIs
StatePublished - 15 Apr 2019

Keywords

  • Aquatic fungi
  • Global biodiversity
  • Latitudinal diversity gradient
  • Litter decomposition
  • Streams
  • Temperature

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