This repository contains the data for accompanying the PhD research by Lambert et al. (2023), investigating the variation of biodiversity dynamics on islands. The data upload contains two folders. The logs folder contains are plain text logs from running the DAISIE models on the University of Groningen Hábrók High Performance Computing Cluster (HPCC). There is one log per HPCC job. The results folder contains folders for each archipelago included in the study and within each of those folders are model output from the DAISIE R package. Each result is stored as an .rds file. Data was generated and analysed using the relaxedDAISIE and DAISIE R packages. The code for these packages is version controlled on GitHub and is freely available in open-source repositories. See the Related Identifiers section for links to relevant archived versions of both these packages.