Global Patterns and Drivers of Climatic Niche Originality and Overlap: Disentangling Ecological From Methodological Signals
Mathieu Chevalier, Clement Violet, Aurélien Boyé · 2026
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Description
Mathieu Chevalier, Clement Violet, and Aurelien Boye built this 2026 database on how species' climate niches overlap worldwide. Niche overlap helps explain which species live together. But since niches are read from where species live, overlap in climate and overlap in maps can echo each other for dull math reasons. The team set out to split true ecology from that echo.
Their database joins range maps and climate data for about sixteen thousand land and sea species. That yields roughly ninety million species pairs. A structured subset of eight animal groups carried the main tests. Niche uniqueness tracked traits like niche width and local richness, while family-tree distance mattered little. Models then tested whether niche and range overlap among neighbors beat chance expectation.
Catalog record
| CREATOR | Mathieu Chevalier, Clement Violet, Aurélien Boyé |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 87 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |