DOI: 10.5061/dryad.cr4k03b
title: Data from: Tropical forest type influences community assembly processes in arbuscular mycorrhizal fungi

description: Aim: Plant community assembly in tropical rainforest has been shown to be
 largely governed by stochastic processes, but as arbuscular mycorrhizal
 (AM) fungi display limited host preference, they may not follow the same
 stochastic assembly pattern. Here, we determined the relative importance
 of environmental and spatial drivers responsible for the community
 assembly process of AM fungi in two types of tropical rainforest
 (semideciduous rainforest and dense ombrophilous forests). Location:
 Atlantic rainforest in northeastern Brazil, South America. Taxon:
 Arbuscular mycorrhizal fungi (Glomeromycota). Methods: We collected root
 samples from eight protected areas of Atlantic forest along a 700 km
 transect in northeastern Brazil. We measured the relative importance of
 deterministic and stochastic processes by redundancy analysis (RDA) and
 variation partitioning in comparison with null expectations using ad hoc
 generated neutral communities. Furthermore, we accessed species
 associations from co-occurrence data, at different scales using a Bayesian
 approach of Hierarchical Modelling of Species Communities (HMSC). Results:
 Overall, the extent to which stochastic and deterministic processes
 affected community assembly depended on the forest type and the spatial
 scale. Specifically, we found that abiotic and biotic predictors of AM
 fungal community assemblages are related to environmental homogeneity in
 tropical rainforests. Main conclusions: The results of the study show that
 dynamics in community assembly was clearly different between the two
 forest types, and that the difference most likely is due to differences in
 responses to environmental variables.
description: Environmental variables
 Dense Ombrophillous forest sitesEnviromental
 variablesenv.DO.csvEnvironmental variables Semideciduous forest sitesEnvironmental variables from soil and climateenv.SD.csvUTM coordinates Dense Ombrophilluous forestGeographic coordinatesxy.DO.csvUTM coordinates Semideciduous forestGeographic coordinatesxy.SD.csvOTU table Dense Ombrophillous forestOTU table. Abundances are number of reads in the sequencing.sp.DO.csvOTU table Semideciduous forestOTU table. Abundances are number of reads in sequencing.sp.SD.csvRaw sequence data 1/6Comprised fastq files (no demultiplexed)ESW-V3QE-V3QE-GLO-C1-NS31-AML2_S1_L001_R1_001.fastq.gzRaw sequence data 2/6Comprised fastq files (no demultiplexed)ESW-V3QE-V3QE-GLO-C1-NS31-AML2_S1_L001_R2_001.fastq.gzRaw sequence data 3/6Comprised fastq files (no demultiplexed)ESW-V3QE-V3QE-GLO-C2-NS31-AML2_S2_L001_R1_001.fastq.gzRaw sequence data 4/6Comprised fastq files (no demultiplexed)ESW-V3QE-V3QE-GLO-C2-NS31-AML2_S2_L001_R2_001.fastq.gzRaw sequence data 5/6Comprised fastq files (No demultiplexed)ESW-V3QE-V3QE-GLO-C3-NS31-AML2_S3_L001_R1_001.fastq.gzRaw sequence data 6/6Comprised fastq files (no demultiplexed)ESW-V3QE-V3QE-GLO-C3-NS31-AML2_S3_L001_R2_001.fastq.gzFiles for bioinformatic analysesFiles needed for carrying out the bioinformatic analyses and correspondence of sample namesBioinformatics.zip