Package: AlphaSDM 0.2.0

AlphaSDM: Species Distribution Models on 'AlphaEarth' Satellite Embeddings

Fits species distribution models and maps habitat suitability at up to 10 m resolution from occurrence records alone, using the 'AlphaEarth' Foundations satellite embeddings (Brown et al. 2025) <doi:10.48550/arXiv.2507.22291>. The embeddings, 64 values per pixel per year from a geospatial foundation model, replace environmental layers, so none need to be sourced or aligned. Provides tools to format occurrence records, place pseudo-absences, train and evaluate an ensemble of machine learning models, and export habitat-suitability rasters. Sampling, model training and prediction all run on 'Google Earth Engine', which requires a free account for noncommercial use.

Authors:James Longo [aut, cre, cph]