DOI: 10.5061/dryad.xpnvx0kmb
title: Data for: Key bacterial groups maintain stream multifunctionality in response to episodic drying

description: Microbial biodiversity is fundamental to maintain ecosystem functioning in
 seasonally variable ecosystems. However, it remains unclear how
 alterations in water availability caused by seasonal drying compromise the
 ability of stream microbes to maintain multiple functions simultaneously
 (i.e., multifunctionality). Using data from 32 streams, we investigated
 how the phenology of seasonal drying influences stream microbial
 biodiversity and their capacity to sustain multifunctionality. Our results
 showed that stream multifunctionality and most bacteria did not respond to
 changes in drying phenology. Only two bacterial groups, the
 drying-resistant Sphingobacteriia and the drying-sensitive
 Acidobacteria_Gp7, exhibited positive associations with
 multifunctionality, whereas bacterial diversity showed a negative
 correlation with functions. Among these biodiversity aspects,
 Sphingobacteriia showed the strongest capacity to maintain
 multifunctionality at low and moderate performance levels. Our findings
 will help to better understand the mechanisms through which biodiversity
 sustains the functioning of seasonally variable streams and their
 responses to global change.
description: # Data for: Key bacterial groups maintain stream multifunctionality in
 response to episodic drying Authors: Giulia Gionchetta1*, Rebeca
 Arias-Real2*, Pilar Hurtado2,3,4, Helmut Brgmann1, Cayetano Gutirrez
 Cnovas4 Affiliations: 1 Eawag, Swiss Federal Institute of Aquatic Science
 and Technology, Department of Surface Waters Research and Management, 6047
 Kastanienbaum, Switzerland 2 Museo Nacional de Ciencias Naturales, Consejo
 Superior de Investigaciones Cientficas, Serrano 115 bis, 28006, Madrid,
 Spain 3 Universit di Genova, Dipartimento di Farmacia, viale Cembrano, 4,
 16148, Genova, Italy 4 rea de Biodiversidad y Conservacin, Universidad Rey
 Juan Carlos, C/Tulipn s/n, 28933 Mstoles, Madrid, Spain ## Description of
 the Data and file structure ### Variable: Site drying_duration
 drying_frequency water_sed shannon asv_ric rao_pd Acidobacteria_Gp10
 Acidobacteria_Gp20 Acidobacteria_Gp22 Acidobacteria_Gp6 Acidobacteria_Gp7
 Actinobacteria Alphaproteobacteria Bacilli Bacteroidetes_incertae_sedis
 Bacteroidia Betaproteobacteria Deltaproteobacteria Epsilonproteobacteria
 Gammaproteobacteria Gemmatimonadetes Planctomycetia Sphingobacteriia
 Thermoleophilia Thermomicrobia chla car glu xil pheox bb cr eps ###
 Description of variable: Code of the sampling site Duration of drying
 events during the study period Number of drying events during the study
 period Ratio between dry and fresh weight of sediments Bacterial Shannon
 diversity ASV richness of bacteria Bacteria Rao's phylogenetic
 diversity Relative abundace of Acidobacteria_Gp10 taxa Relative abundace
 of Acidobacteria_Gp20 taxa Relative abundace of Acidobacteria_Gp22 taxa
 Relative abundace of Acidobacteria_Gp6 taxa Relative abundace of
 Acidobacteria_Gp7 taxa Relative abundace of Actinobacteria taxa Relative
 abundace of Alphaproteobacteria taxa Relative abundace of Bacilli taxa
 Relative abundace of Bacteroidetes_incertae_sedis taxa Relative abundace
 of Bacteroidia taxa Relative abundace of Betaproteobacteria taxa Relative
 abundace of Deltaproteobacteria taxa Relative abundace of
 Epsilonproteobacteria taxa Relative abundace of Gammaproteobacteria taxa
 Relative abundace of Gemmatimonadetes taxa Relative abundace of
 Planctomycetia taxa Relative abundace of Sphingobacteriia taxa Relative
 abundace of Thermoleophilia taxa Relative abundace of Thermomicrobia taxa
 Chlorophyll a Carotenoid content -glucosidase activity -xylosidase
 activity phenol oxidase activity Bacterial cell density Sediment
 respiration Extracellular polymeric substances content ### Units of
 variable: none days events % bits number of ASV none % % % % % % % % % % %
 % % % % % % % % Chl-a g gDW-1 Car g gDW-1 nmol MUF gDW-1 h-1 nmol MUF gDW
 h-1 nmol 2,3-dihydroindole - 5,6-quinone-2-carboxilate (DIQC) gDW-1 h-1
 cells 108 gDW-1 mol RAZ gDW h-1 glucose-equivalents gDW-1 ### Code
 explanation: ASV: amplicon-sequence variants DW: dry weight RAZ:
 micromoles of resazurin Data format (sheet): drying_aspects drying_aspects
 drying_aspects bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 bacterial_biodiversity bacterial_biodiversity bacterial_biodiversity
 functions functions functions functions functions functions functions
 functions