Bois Roche (layer 2)
Basic information
Sample name: Bois Roche (layer 2)

Reference: C. Sesé and P. Villa. 2008. Micromammals (rodents and insectivores) from the early Late Pleistocene cave site of Bois Roche (Charente, France): Systematics and paleoclimatology. Geobios 41:399-414 [ER 2367]
Country: France

Coordinate: 45° 42' N, 0° 20' W
Basis of coordinate: based on nearby landmark
Geography comments: "near the city of Cognac" (coordinate based on Cognac)
"dated to late OIS 5 or early OIS 4 by preliminary ESR estimates" (i.e., roughly 71 kyr)
Climate and habitat
Substrate: ground surface
Lithology: siltstone
Habitat comments: "a massive (up to 30–40 cm) clast-supported accumulation of clayey silt with centimeter to decimeter size blocks of limestone roof fall"
Life forms: rodents
Sampling methods: quarry, screenwash
Sample size: 2724
Years: 1995, 1997-2000
Sampling comments: "Our excavations were done by 1-m grid system... All sediments were waters-creened with superimposed screens of 5 and 2 mm mesh"
Sample: 2544
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-15 09:37:21
Modified: 2017-02-15 09:37:21
Abundance distribution
6 species
3 singletons
total count 2724
standardised richness: not computable
Fisher's α: 0.729
geometric series k: 0.2076
Hurlbert's PIE: 0.0923
Shannon's H: 0.2114
Good's u: 0.9989