Data · dataset · 2026
16S rRNA metabarcoding data and analysis code from throughfall and soil samples in a Neotropical forest (Ubatuba, São Paulo, Brazil)
Listed in REDU - Unicamp Institutional Research Data Repository
This repository contains processed data and analysis code associated with a 16S rRNA gene metabarcoding study of bacterial communities in throughfall water (rainwater passing through the forest canopy) and soil samples collected in a Neotropical forest in Ubatuba, São Paulo, Brazil.
Description
The dataset was generated to investigate how epiphytic tank bromeliads influence soil bacterial community structure and microbial functioning via canopy–soil coupling mediated by throughfall.
Throughfall and soil samples were collected in field conditions and processed using eDNA metabarcoding targeting the 16S rRNA gene (V4 region), following the Illumina Amplicon Protocol from the Earth Microbiome Project. Sequence data were processed using QIIME 2, with denoising and amplicon sequence variant (ASV) inference performed using DADA2, and taxonomic assignment conducted with a Naive Bayes classifier trained on the SILVA 138 database.
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The repository includes ASV tables, taxonomic classifications, and associated metadata. In addition to sequencing data, this repository provides R scripts used for downstream analyses, including diversity metrics (alpha and beta diversity), ordination analyses (PCoA), redundancy analysis (RDA), and structural equation modeling (piecewise SEM). Soil chemical variables (e.g., pH, organic matter, and nutrients) and microbial functional indicators—such as microbial biomass carbon, soil respiration, and β-glucosidase activity—were integrated into the analytical framework as well.
The data cannot be made publicly available due to intellectual property protection restrictions. For additional information, please contact the corresponding authors.
Links
Where it is published
- Dataverse dataset page redu.unicamp.br/dataset.xhtml?persistentId=doi%3A10.25824%2Fredu%2FH2WXZN ↗
landing page · from redu unicamp br
- DOI doi.org/10.25824/redu/h2wxzn ↗
DOI / persistent id · from redu unicamp br
Catalogue records · 1
- Dataverse API redu.unicamp.br/api/datasets/:persistentId/?persistentId=doi%3A10.25824%2Fredu… ↗
metadata API · from redu unicamp br
Topics
- Stated by source
- Earth and Environmental Sciences
- From keywords
- Earth & Environmental Science · Life Sciences · Soil biology
- Inferred from text
- Sequencing 75%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| REDU - Unicamp Institutional Research Data Repository | doi:10.25824/redu/H2WXZN | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:field:410603 | mapping · redu unicamp br | vocabulary-mapper@1.0.0 | keywords['Soil biology'] |
| concepts[field].dataverse_subject:earth-and-environmental-sciences | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 | /subjects |
| concepts[field].local:field:earth-environmental | mapping · redu unicamp br | connector:redu_unicamp_br@1.0.0 | /subjects |
| concepts[field].local:field:life-sciences | mapping · redu unicamp br | connector:redu_unicamp_br@1.0.0 | /subjects |
| concepts[modality].local:modality:sequencing | enrichment · redu unicamp br | keyword-concept-rules@1.0.0 | title+description (75%) |
| created_date | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 | |
| description | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 | /description |
| publication_date | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 | |
| title | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 | /name |
| updated_date | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 | |
| version_label | source · redu unicamp br | connector:redu_unicamp_br@1.0.0 |