This steibl_et_al_raw_data_README.txt file was generated on 2021-08-04 by Sebastian Steibl GENERAL INFORMATION 1. Title of Dataset: "Allochthonous resources are less important for faunal communities on highly productive, small tropical islands" 2. Author Information A. Principal Investigator Contact Information Name: Sebastian Steibl Institution: Department of Animal Ecology and BayCEER, University of Bayreuth Address: Universitaetsstr. 30, D-95440 Bayreuth, GERMANY Email: sebastian.steibl@uni-bayreuth.de B. Associate or Co-investigator Contact Information Name: Christian Laforsch Institution: Department of Animal Ecology and BayCEER, University of Bayreuth Address: Universitaetsstr. 30, D-95440 Bayreuth, GERMANY Email: christian.laforsch@uni-bayreuth.de 3. Date of data collection: 2018-05-26 to 2018-05-29 4. Geographic location of data collection: Lh. Dhidhdhoo (5.376479 N, 73.382828 E), Lh. Gaaerifaru (5.484990 N, 73.403909 E), Lh. Vavvaru (5.418452 N, 73.354293 E), Lh. Veyvah (5.424594 N, 73.360720 E), Lhaviyani (Faadhippolhu) Atoll, Republic of Maldives DATA & FILE OVERVIEW 1. File List: beach_data_CSV.csv - raw data csv-file. amount [g/m²] of accumulated marine and terrestrial standing stock on beaches of small tropical islands isotope_data_CSV.csv - raw data csv.file. stable isotope data (d13C, d15N), incl. carbon- and nitrogen-content and ratios for the investigated resources and consumer species on small tropical atoll islands steibl_et_al_supplementary_material.docx - supplementary material incl. 2 tables. Summarizing raw data tables for the stable isotope raw data (mean +- SD for each species) and confidence intervals of the Bayesian mixing models steibl_et_al_data_analysis.Rmd - R Markdown script for statistical analysis. 2. Relationship between files, if important: beach_data_CSV.csv and isotope_data_CSV.csv are the raw data files necessary to run and reproduce the statistical analysis in steibl_et_al_data_analysis.Rmd 3. Additional related data collected that was not included in the current data package: --- 4. Are there multiple versions of the dataset? no METHODOLOGICAL INFORMATION 1. Description of methods used for collection/generation of data: - terrestrial and marine resource collection using hand collections of material - consumer species collection using insects nets and hand collection. - stable isotope analysis using Carlo Erba Instruments 1108 dual element analyzer, coupled to deltaS Finnigan MAT continuous flow isotope ratio mass spectrometer, via Thermo Fischer Scientific ConFlo III open-split interface 2. Methods for processing the data: - collected resource and consumer tissue lyophilized (110°C, 48h), homogenized (ball mill 30 Hz, 90s) and processed in stable isotope element analyzeer - isotope raw data corrected using method in Post et al. (2007) 10.1007/s00442-006-0630-x, and using linear regression based on C:N ratios 3. Instrument- or software-specific information needed to interpret the data: - R packages as specified in R Markdown script - JAGS (https://mcmc-jags.sourceforge.io/) 4. Standards and calibration information, if appropriate: - isotope standards used for delta notation: CO2 vs. V-PDB, N2 vs. N2 atmosphere, reference substances CH6, CO8, NBS18 (C isotope) and N1, N2 (N isotope), provided by International Atomic Energy Agency, Vienna, Austria 5. Environmental/experimental conditions: - tropical atoll islands, Indian Ocean - tropical moist forest habitat - Köppen Climate classification: Am ("Tropical Monsoon Climate") 6. People involved with sample collection, processing, analysis and/or submission: - Sebastian Steibl, Robert Sigl, Sanja Blaha, Sophia Drescher, Gerhard Gebauer, Elif Gürkal, Frederic Hüftlein, Anna Satzger, Michael Schwarzer, Dimitri Seidenath, Jana Welfenbach, Raphael S. Zinser, Christian Laforsch DATA-SPECIFIC INFORMATION FOR: beach_data_CSV.csv 1. Number of variables: 1 2. Number of cases/rows: 80 3. Variable List: 'weight': amount of standing stock of the different resources accumulating on the beach measured in g/m² DATA-SPECIFIC INFORMATION FOR: isotope_data_CSV.csv 1. Number of variables: 9 2. Number of cases/rows: 586 3. Variable List: 'N_weight': amount of Nitrogen in sample [µg] 'N_percent': relative amount of Nitrogen in sample [%] 'N_mmol': total amount of Nitrogen in sample [mmol/g dry weight] 'd15N': relative 15N ratio in sample [parts per mil] 'C_weight': amount of Carbon in sample [µg] 'C_percent': relative amount of Carbon in sample [%] 'C_mmol': total amount of Carbon in sample [mmol/g dry weight] 'd13C': relative 13C ratio in sample [parts per mil] 'ratio': ratio in Carbon to Nitrogen (C/N) in sample