Analysis code and derived data for "Morphological stability and subtle phenotypic shifts in Atlantic Forest birds across two decades of climate warming"

Analysis code, derived analytical data sets, pooled posterior summaries of the Stan models and the REML (glmmTMB) result objects, reproducing every value reported in a study of morphological change in 73 Atlantic Forest passerine species across 24 years (1995–2018) of regional warming.

Licensing. The code (Analysis/scripts/, Manuscript/) is released under the MIT licence. The derived data, result objects, figures and manuscript text are released under CC BY 4.0. The Zenodo record licence below is set to CC BY 4.0 as the more demanding of the two; see LICENSE and LICENSE-DATA.md in the deposit for the exact split.

Primary data sources, each of which should be cited in its own right: ATLANTIC BIRD TRAITS (Rodrigues et al. 2019, Ecology, no copyright or proprietary restrictions); EltonTraits 1.0 (Wilman et al. 2014, Ecology, no restrictions); the avian phylogeny of McTavish et al. 2025 (PNAS, CC BY 4.0); and WorldClim 2.1 downscaled from CRU-TS 4.09 (Fick & Hijmans 2017; Harris et al. 2020).

What is not included. Third-party raw data are not redistributed. WorldClim's terms forbid redistribution without prior permission, so no file containing per-record WorldClim values is deposited; Analysis/scripts/climate_extraction.R rebuilds them from a WorldClim download. The per-tree Stan fits (several GB) are omitted; their pooled posterior summaries are included, and the scripts and job files refit them. Large brms model objects from a superseded engine (~2 GB) are also omitted. Every number in the manuscript and supplementary material renders from the deposit alone.