The 2012 census of large hamster burrows occupied in Alsace in winter cereal and alfalfa plots provides an index of abundance. The dataset was published by the Bureau de Recherches Géologiques et Minières and last updated on the platform in March 2019. The count protocol, validated in 2000 by the ONCFS, uses a semi-exhaustive method with 10-metre and 3-metre intervals between enumerators.
Use Cases
- Estimate population abundance based on the burrow count index described.
- Analyze habitat use in different crop types (winter cereal vs. alfalfa) based on the survey protocol.
- Assess population status over time using the 2012 data point as a baseline.
- Model species distribution in Alsace based on the geospatial nature of the census data.
Strengths
- The census uses a specific, validated protocol from 2000, suggesting methodological rigor.
- The description specifies the geographic region (Alsace) and the year (2012).
- The data distinguishes between two distinct agricultural plot types (winter cereal and alfalfa) with different survey intervals.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Last updated 2019-03-22 00:00:00; freshness should be verified.
Provenance
- Source
- BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES
- Collection Method
- Semi-exhaustive field census using a protocol validated in 2000 by the ONCFS.
- Time Range
- 2012
- Freshness
- Last updated 2019-03-22 00:00:00.
- Geography
- Alsace, France