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WeatherXBiodiversity — does Soroye 2020’s bumble bee–climate claim replicate?

LifeWatch ERIC

What this site is

A FORRT (Framework for Open and Reproducible Research Training) replication study of Soroye, Newbold & Kerr (2020, Science).

The original paper claims that the frequency with which local temperatures exceed species-specific historical thermal tolerances — not just mean warming — predicts local extirpation of bumble bee species across North America and Europe. We test whether that claim:

  1. Reproduces when the authors’ R analysis is re-implemented in Python, on the same underlying data, and

  2. Replicates when the same Python pipeline is applied to independent open occurrence data for the Iberian Peninsula.

Both tests come back Validated, High confidence, with the Iberian coefficient ~3× larger in magnitude than the continental mean.

Headline result

PhaseDatasetnsc_TEI_delta (mixed VB)95 % CI
2 — ReproductionSoroye continental data13 614+0.15[0.12, 0.19]
3 — ReplicationIberian Bombus via GBIF528+0.48[0.27, 0.69]

The mechanism Soroye describes is real, and on the warm-edge subregion of Iberia it is stronger — exactly what one would predict if species reaching their thermal limit are most vulnerable to thermal-exposure events.

The full FORRT chain

Nine nanopublications, all on Science Live:

                        Soroye et al. 2020
                              ▲
              ┌───────────────┴───────────────┐
              │                               │
    Quote-with-comment  ───►  AIDA  ───►  FORRT Claim
                                              │
                                              │ (tested by)
                                              │
                          ┌───────────────────┴───────────────────┐
                          ▼                                       ▼
                Phase 2 Replication Study           Phase 3 Replication Study
                    (Robustness)                       (Regional replicability)
                          │                                       │
                          ▼                                       ▼
                 Phase 2 Outcome                          Phase 3 Outcome
                  Validated / High                          Validated / High
                          │                                       │
                          ▼                                       ▼
              CiTO confirms Soroye 2020              CiTO confirms Soroye 2020
                          │                                       │
                          └─────────────► Wikidata  ◄─────────────┘

The next pages walk through each layer.

Reuse and citation

This work is meant to be reused — to project bumble bee extirpation risk onto future climate, to flag candidate climate refugia, or to extend the mechanism to other thermally-sensitive insect taxa. The validated pipeline is archived at Zenodo and the GBIF download at GBIF.org User (2026).

If you build on this, please cite both the original paper and this repository.

Context

Prepared for the BioHackathon Europe 2026 project WeatherXBiodiversity, which packages cross-domain biodiversity × climate data as ARC / RO-Crate FAIR Digital Objects.

References
  1. Soroye, P., Newbold, T., & Kerr, J. (2020). Climate change contributes to widespread declines among bumble bees across continents. Science, 367(6478), 685–688. 10.1126/science.aax8591
  2. GBIF.org User. (2026). Occurrence Download. The Global Biodiversity Information Facility. 10.15468/DL.3FRMSQ
  3. Fouilloux, A. (2026). WeatherXBiodiversity: Soroye et al. (2020) Replication for Iberian Bombus. Zenodo. 10.5281/ZENODO.19756173