Bois Roche (layer 1b)
Basic information
Sample name: Bois Roche (layer 1b)

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: 46° 42' N, 0° 20' W
Latlng 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)

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Environment
Substrate: ground surface

Lithology: claystone

Habitat comments: "a lens of finely laminated brown silty clay"

Methods
Life forms: rodents

Sampling methods: quarry, screenwash

Sample size: 15 specimens

Years: 1995, 1997-2000

Net or trap nights: 0

Basal area status: not applicable

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 no: 2541

Contributor no: John Alroy

Enterer: John Alroy

Created: 2017-02-15 09:33:33

Modified: 2017-02-14 22:33:33

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
2 species
0 singleton
total count 15
geometric series index: not computable
Fisher's α: not computable
geometric series k: 1.0
Hurlbert's PIE: 0.4048
Shannon's H: 0.6365
Good's u: 1
Register
Stenocranius gregalis 10
"Microtus gregalis"
Arvicola amphibius 5
"Arvicola terrestris"