Data, code, and reproducibility materials for climatic niche reorganization of Agave salmiana under CMIP6

This repository contains data, code, model parameters, control files, and reproducibility materials supporting analysis of climate-driven spatial reorganization of the potential climatic niche of Agave salmiana under CMIP6 futures. Version 1.1.0 extends the original release with a counterfactual temperature × precipitation experiment designed to interrogate CLIMEX as a process-based niche model. For each of five CMIP6 GCMs and three SSPs, matched historical (H), temperature-only (T_ONLY), precipitation-only (P_ONLY), and combined future (T+P) climate states were analyzed. The update provides deterministic factorial attribution of spatial endpoints and area-weighted CLIMEX responses, counterfactual sufficiency of temperature and precipitation for modeled gains and losses, audit/control files, source-column mapping, source-file SHA-256 manifests, and a decision-oriented screening synthesis based on cross-SSP robustness and multimodel agreement. The deterministic SS_T, SS_P, and SS_TP shares are factorial contrast partitions, not inferential ANOVA variance components. No p-values are assigned and neither grid Locations nor GCMs are treated as independent statistical replicates. CLIMEX indices whose temperature dependence is structurally defined (including TI, CS, and HS) are retained as internal consistency controls rather than independent evidence of climatic mechanism. The decision-oriented screening classes (Maintain, Prepare, Test, Hedge/monitor) are post hoc planning priorities derived from modeled climatic robustness and GCM agreement. They do not predict establishment, realized occupancy, yield, profitability, or management success. The study uses CLIMEX version 4, the historical CliMond CM10 climatology, and NASA NEX-GDDP-CMIP6 projections for SSP1–2.6, SSP2–4.5, and SSP5–8.5 for 2081–2100 based on GFDL-ESM4, IPSL-CM6A-LR, MPI-ESM1-2-HR, MRI-ESM2-0, and UKESM1-0-LL. Primary NASA NetCDF files and licensed CLIMEX/CliMond data are not redistributed.