Climate biogeography of Arabidopsis thaliana: Linking distribution models and individual variation

Patterns of individual variation are key to testing hypotheses about the mechanisms underlying biogeographic patterns. If species distributions are determined by environmental constraints, then populations near range margins may have reduced performance and be adapted to harsher environments. Model organisms are potentially important systems for biogeographical studies, given the available range‐wide natural history collections, and the importance of providing biogeographical context to their genetic and phenotypic diversity. We fit occurrence records to climate data and then projected the distribution of Arabidopsis under the last glacial maximum, current, and future climates. We confronted model predictions with individual performance measured on 2194 herbarium specimens, and we asked whether predicted suitability was associated with life history and genomic variation measured on ~900 natural accessions. The most important climate variables constraining the Arabidopsis distribution we..., , , # Climate biogeography of *Arabidopsis thaliana*: Linking distribution models and individual variation

[https://doi.org/10.5061/dryad.zkh1893hr](https://doi.org/10.5061/dryad.zkh1893hr)

MaxEnt model projections, occurrence data, and herbarium specimen data from this article are included here.

## Description of the data and file structure

MaxEnt model projections come as rasters. Occurrence data and herbarium specimen data are in Excel and tab-delimited tables.

#### HerbariumDataPublic\_JBIpaper\_20Mar2024.xlsx

This file contains measurements of herbarium specimens used in the paper. The units for latitude and longitude are degrees. The units for inflorescence height, maximum rosette leaf length, and maximum rosette diameter are in centimeters. The ratio of maximum rosette leaf length to inflorescence height and habitat suitability are unitless.

#### OccurrenceDataUsedToFitModels\_JBI\_20March2024.txt

This file contains the latitude and longitudes of occurrences used to fit the m...