This dataset contains data and code necessary to calculate and analyze niche conservatism in non-native plants. We provide data on the occupied climatic conditions of 158 plant species, in the invaded range (mainland Spain), and in their native range (global). We also provide data on relevant variables that can explain niche conservatism: introduction pathway, minimum residence time, growth form and climatic niche breadth in the native range. The code calculates niche conservatism metrics through ordination and kernel smoothers, and fits statistical models that relate niche conservatism metrics to relevant variables. The dataset is structured in three folders: 1. Data: contains tabular data and a phylogenetic tree 2. Results: contains plots 3. Scripts: contains R scripts that read the files in the "Data" folder, and export outputs to the "Results" folder, which replicate the results of the analyses.

R, 4.2.0

Licence of the public data source GBIF Occurrence: CC BY-NC 4.0

The data were obtained from public databases. In summary, georeferenced occurrences taken from GBIF (GBIF 2001) were split between native and invaded ranges (polygons taken from Brummitt et al. 2001), and then intersected with global bioclimatic rasters (WorldClim, Hijman et al. 2005), and the resulting climatic values were compared in reduced ordination space, to derive niche conservatism metrics. The climatic values in the native range were assessed in ordination space to calculate the breadth of the native niche. Data on introduction pathway, growth form, taxonomy, minimum residence time were gathered from multiple sources.