Data for: Extreme drought impacts have been underestimated in grasslands and shrublands globally
Data files
Jan 17, 2024 version files 361.53 KB
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climdat2.csv
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data.hab.csv
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data.mean1.csv
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datappt_ai3.csv
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datappt_MAP2.csv
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datappt_pryr.csv
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datapptgram1.csv
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drt.ave.csv
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Dryad_data_site_info.csv
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Dryad_submission_datappt_cv2.csv
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Dryad_submission_datappt_rich2.csv
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Dryad_submission_datapptsand2.csv
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Dryad_submission_gram.ave.csv
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Dryad_submission.R
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ds.map.csv
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dt3.120.csv
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dt3.all.csv
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README.md
Abstract
Data for publication "Extreme drought impacts have been underestimated in grasslands and shrublands globally." In this publication, we used a globallly distributed network of drought experiments to assess the impact of extreme, single-year drought events on aboveground net primary productions in grassland and shrubland ecosystems. The data and script necessary to reproduce figures and analyses for the manuscript may be found in this repository. The single script combines all of the data frames in order to run statistical models, create figures, and produce any additional statistics referenced in the publication. Data in this repository include the reponses of aboveground net primary production to drought treatments at 100 sites, abiotic information about the sites such as mean annual precipitation, annual precipitaiton, and soil sand content, along with biotic characteristics about these sites including species richness and the percent of vegetative cover by graminoids. Though the data published here may be freely reused, we encourage users to contact the authors of this dataset and the linked publication in order to facilitate the best practices for use of data.
README: Data for "Extreme drought impacts have been underestimated in grasslands and shrublands globally"
Description of the data and file structure
The structure of this repository is relatively simple, with one single R script (Dryad_submission.R) which uses data from seven .csv files in order to reproduce results and figures from the publication. The datasets can all be linked by the site_code column which is the unique identifier for each of the 100 sites in the study.
Dryad_data_site_info.csv
This file includes information for the sites in the Drought Network International Drought Experiment including the full name, continent, country, habitat type, mean annual precipitation, and aridity index values.
dt3.all.csv & drt3.120
Contains information as to the mean drought response at each site (mean_DS3), number of replicates at each site (n), standard deviation of response (sd), standard error of response (se), lower and upper bounds of 95% confidence interval, and whether the site was significantly different from zero.
Dryad_submission_datappt_cv2.csv
Includes dt3.all plus the interannual precipitation variability (cv_ppt_inter)
Dryad_submission_datappt_rich2.csv
Includes dt3.all plus the average richness at each site
drt.ave.csv
Includes drought severity (drtpct_map), number of treatment days, and response (mean_DS3)
ds.map.csv
Plot level precipitation values
Dryad_submission_gram.ave.csv
Includes the proportion of vegetative cover from graminoids at each site
Dryad_submission_datapptsand2.csv
Includes dt3.all plus the average sand content for each site
Dryad_data_site_info.csv
Includes information about continent, country, mean annual precipitation (precip), and aridity (arid) for each site
datapptgram1.csv
Plot level percent graminoid
climdat2.csv
Includes mean annual precipitation (precip) and mean annual temperature (temp) for each site
datappt_pryr.csv
Includes dt3.all plus the drought severity of the prior year (drtpct_map730)
datappt_MAP2.csv
Includes dt3.all plus mean annual precipitation (precip)
datappt_ai3.csv
Includes dt3.all plus the log of the aridity index (logAI)
data.mean1.csv & data.hab.csv
Same variables as defined in dt3.all
Sharing/Access information
Please contact the authors if you are interested in using these data. The data are free to reuse but contacting the authors prior to reuse will ensure the data are used according to best practices.
Methods
Aboveground net primary production data were collected in 100 drought experiments around the world. These data and scripts were used to explain responses of plant production to drought experiments. Please see published manuscript for detailed methods.