Cueva de Abra
Basic information
Sample name: Cueva de Abra
Reference: W. W. Dalquest and E. Roth. 1970. Late Pleistocene mammals from a cave in Tamaulipas, Mexico. Southwestern Naturalist 15(2):217-230 [ER 3201]
Geography
Country: Mexico
State: Tamaulipas
Coordinate: 22° 33' N, 99° 5' W
Coordinate basis: based on nearby landmark
Time interval: Late Pleistocene
Geography comments: "a large cave in a limestone hill beside the Pan American Highway in extreme southern Tamaulipas", presumably near Antiguo Morelos Municipality (basis of coordinate)
"We assign these fossils to the late Pleistocene"
"We assign these fossils to the late Pleistocene"
Environment
Lithology: limestone
Taphonomic context: bird accumulation,cave
Habitat comments: slabs of "buff-colored travertine" found at the bottom of a sinkhole
the authors infer that "regurgitated pellets of the barn owls (Tyto alba), that perched on the boulder above, disintegrated to scatter the bones of small vertebrates upon which the owls had fed"
the authors infer that "regurgitated pellets of the barn owls (Tyto alba), that perched on the boulder above, disintegrated to scatter the bones of small vertebrates upon which the owls had fed"
Methods
Life forms: bats,rodents,other small mammals
Sampling methods: quarry
Sample size: 2013 specimens
Sampled by: 1966
Sampling comments: "the matrix slabs were treated with dilute acetic acid... most specimens were obtained by completely dissolving away the enclosing carbonate matrix"
Metadata
Sample number: 3511
Contributor: John Alroy
Enterer: John Alroy
Created: 2019-09-10 17:34:44
Modified: 2019-09-10 07:34:44
Abundance distribution
25 species
7 singletons
total count 2013
geometric series index: 38.1
Fisher's α: 4.021
geometric series k: 0.7499
Hurlbert's PIE: 0.7219
Shannon's H: 1.8746
Good's u: 0.9965
Each square represents a species. Square sizes are proportional to counts.
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Register
| Didelphis marsupialis | 2 | 1.0 kg |
| Marmosa mexicana | 1 | 57.8 g |
| Cryptotis parva | 61 | 4.3 g |
| Notiosorex crawfordi | 1 | |
| Balantiopteryx io | 1 | |
| Leptonycteris nivalis | 1 | 23.0 g nectarivore |
| Artibeus jamaicensis | 4 | 48.0 g frugivore |
| Myotis sp. | 1 | |
| Vespertilionidae indet. | 1 | |
| compared to Lasionycteris | ||
| Tadarida brasiliensis | 6 | 11.3 g insectivore |
| Nyctinomops laticaudatus | 144 | 10.4 g insectivore |
| "Tadarida laticaudata" | ||
| Nyctinomops aurispinosus | 6 | 13.0 g |
| "Tadarida aurispinosa" | ||
| Eumops perotis | 4 | 63.4 g insectivore |
| Sylvilagus cf. floridanus | 12 | 1.1 kg herbivore |
| Perognathus hispidus | 25 | 30.4 g |
| Perognathus huastecensis | 29 | |
| type | ||
| Liomys irroratus | 49 | 44.9 g |
| Oryzomys palustris | 48 | 42.4 g |
| Reithrodontomys fulvescens | 118 | 11.5 g |
| Peromyscus leucopus | 208 | 21.0 g |
| Peromyscus pectoralis | 55 | |
| Baiomys taylori | 179 | 8.5 g |
| Onychomys leucogaster | 1 | 34.7 g |
| Sigmodon hispidus | 1000 | 89.4 g |
| estimated count | ||
| Neotoma micropus littoralis | 56 | 294 g |