Estimating Area of Occupancy From Incomplete Occurrence Records: Reproducible Workflow Illustrated on a Comprehensive Dataset of Georgian Snakes
Giorgi Iankoshvili, David Tarkhnishvili · 2026
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Description
Giorgi Iankoshvili and David Tarkhnishvili offer a workflow for estimating how much land a species occupies, in a 2026 paper. Conservation lists use a fixed small grid for that estimate, but sparse records can make the grid undercount real range. The authors use snakes in Georgia as a test case, with thirteen species in a hilly, unevenly sampled land.
Their method studies how the count of records grows as area is added, and finds a break point that sets a species-specific grid size. For most species, that size was larger than the standard grid. Repeated sampling tests showed the method beat raw cell counts in almost all comparisons. The authors stress that the workflow supports, rather than replaces, the standard method used in formal Red List checks.
Catalog record
| CREATOR | Giorgi Iankoshvili, David Tarkhnishvili |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 53 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |