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]
Geography
Country: France
Coordinate: 45° 42' N, 0° 20' W
Coordinate basis: based on nearby landmark
Time interval: Late Pleistocene
Ma: 0.071
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)
"dated to late OIS 5 or early OIS 4 by preliminary ESR estimates" (i.e., roughly 71 kyr)
Environment
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"
Methods
Life forms: rodents
Sampling methods: quarry,screenwash
Sample size: 2724 specimens
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"
Metadata
Sample number: 2544
Contributor: John Alroy
Enterer: John Alroy
Created: 2017-02-15 09:37:21
Modified: 2017-02-14 22:37:21
Abundance distribution
6 species
3 singletons
total count 2724
geometric series index: 12.6
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
Each square represents a species. Square sizes are proportional to counts.
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Register
| Apodemus sp. | 1 | |
| Stenocranius gregalis | 2592 | |
| "Microtus gregalis" | ||
| Alexandromys oeconomus | 8 | 36.5 g |
| "Microtus oeconomus" | ||
| Arvicola amphibius | 121 | |
| "Arvicola terrestris" | ||
| Dicrostonyx torquatus | 1 | 52.0 g |
| Neomys cf. fodiens | 1 | |