Climate change impacts on California's foundational trees: demographic shifts are already underway
Data files
Apr 22, 2026 version files 223.09 KB
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README.md
3.66 KB
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Table_S1.csv
215.04 KB
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Table_S2_.csv
1.89 KB
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Table_S3.csv
2.51 KB
Abstract
This dataset supports a scoping review of peer-reviewed and grey literature (1971–2023) on climate change impacts on 31 endemic and near-endemic foundational tree species in California. The dataset consists of three tables. Table S1 is a comprehensive bibliography of literature consulted for each species, organized by common name, scientific name, publication title, and full APA citation. Table S2 summarizes, for each species, the number of available range projection studies and spatio-temporal demographic analyses, along with species range areas within and outside California. Table S3 synthesizes the results of demographic studies for each species, recording the direction of change in recruitment, mortality, and density in response to water availability and temperature, as reported across individual studies. These data can be used to assess the state of climate change research on California's foundational tree species, identify research gaps, and support conservation planning and prioritization. No legal or ethical restrictions apply to reuse of this dataset.
Dataset DOI: 10.5061/dryad.m0cfxppjm
Description of the data and file structure
Files and variables
File: Table_S1.csv
Description: A comprehensive bibliography of peer-reviewed and grey literature consulted for each tree species included in the study. Complete citations for studies referenced in Table_S3.csv are also included here.
Variables
- Table S1:
- Common name: Categorical. Common name of the tree species
- Scientific Name: Categorical. Latin binomial of the tree species
- Title: Text. Title of the cited publication
- APA Citation: Text. Full citation in APA format
File: Table_S2_.csv
Description: Summary of available range projection and spatio-temporal demographic analyses for each study species, including species range areas within and outside California.
Variables
- Table S2:
- Common name: Categorical. Common name of the tree species
- Scientific Name: Categorical. Latin binomial of the tree species
- # range projection studies (total): Numeric. Total number of range projection studies found for the species
- # Spatio-temporal demographic analyses: Numeric. Number of spatio-temporal demographic analyses found for the species
- Range area within CA (km2): Numeric. Species range area within California in square kilometers
- Range area outside CA (km2): Numeric. Species range area outside California in square kilometers
- Total range area (km2): Numeric. Total species range area in square kilometers
File: Table_S3.csv
Description: Summary of demographic responses to climate variables reported across studies for each species. Full citations for abbreviated study references are provided in Table_S1.csv.
Variables
- Table S3:
- species: Categorical. Latin binomial of the tree species
- common name: Categorical. Common name of the tree species
- study: Categorical. Abbreviated citation; full citations in Table_S1.csv
- Recruitment change with water: Categorical. Direction of change in recruitment associated with increasing water availability. "+" = higher, "-" = lower, "NC" = no significant change, blank = not measured in this study
- Recruitment change with temp: Categorical. Direction of change in recruitment associated with increasing temperature. "+" = higher, "-" = lower, "NC" = no significant change, blank = not measured in this study
- Mortality change with water: Categorical. Direction of change in mortality associated with increasing water availability. "+" = higher, "-" = lower, "NC" = no significant change, blank = not measured in this study
- Mortality change with temp: Categorical. Direction of change in mortality associated with increasing temperature. "+" = higher, "-" = lower, "NC" = no significant change, blank = not measured in this study
- Density change with water: Categorical. Direction of change in density associated with increasing water availability. "+" = higher, "-" = lower, "NC" = no significant change, blank = not measured in this study
- Density change with temp: Categorical. Direction of change in density associated with increasing temperature. "+" = higher, "-" = lower, "NC" = no significant change, blank = not measured in this study
Code/software
Figures associated with this study were created using ggplot2 in R. No code or scripts are included in this data deposit. The CSV files can be opened with any standard spreadsheet software (e.g., Microsoft Excel, Google Sheets) or statistical software.