Rivera (grassland)
Basic information
Sample name: Rivera (grassland)

Reference: M. J. Andrade-Núñez and T. M. Aide. 2010. Effects of habitat and landscape characteristics on medium and large mammal species richness and composition in northern Uruguay. Zoologia 27(6):909-917 [ER 1711]
Geography
Country: Uruguay

Coordinate: 31° 11' S, 56° 46' W
Latlng basis: based on nearby landmark

Geography comments: "in the northwestern part of the department of Rivera... Study sites were located in ten properties of a forestry company" (coordinate is based on Tranqueras)

Environment
Habitat: tropical/subtropical savanna

Substrate: ground surface

Disturbance: grazing

MAT: 18.1

MAP: 1653.0

Habitat comments: "The climate is humid subtropical" and the "Grassland sites were characterized by a predominance of grasses and herbaceous vegetation and a lack of trees and shrubs species" and there is definitely "cattle ranching" in the area

Methods
Life forms: carnivores, ungulates, other large mammals, other small mammals

Sites: 10

Sampling methods: no design, baited, automatic cameras

Sample size: 41 captures or sightings

Years: 2008

Days: 24

Nets or traps: 40

Net or trap nights: 960

Camera type: digital

Cameras paired: no

Trap spacing: 0.06

Basal area status: not applicable

Sampling comments: "The first survey was carried out from January to April, 2008, the second survey from June to August, 2008, and the third survey from September to December, 2008. Each site was surveyed for approximately 24 days... The direct method consisted of four digital camera traps (Cuddeback Excite Digital Camera, 2 Megapixels) for eight consecutive days in each site for a total of 96 camera/days per site (3 censuses x 4 cameras x 8 days). Camera traps were separated on average by 60 m... We used apples, bananas, sardines and vanilla as baits"

Metadata
Sample no: 1908

Contributor no: John Alroy

Enterer: John Alroy

Created: 2016-01-10 17:24:46

Modified: 2016-01-12 06:40:45

Abundance distribution
Each square represents a species. Square sizes are proportional to counts. Values are logged.
Statistics
7 species
2 singletons
total count 41
geometric series index: 12.2
Fisher's α: 2.427
geometric series k: 0.602
Hurlbert's PIE: 0.6774
Shannon's H: 1.4801
Good's u: 0.9512
Register
Cerdocyon thous (crab-eating fox)215.2 kg
Dasypus novemcinctus 44.4 kg
Mazama gouazoubira (gray brocket)314.0 kg
Lycalopex gymnocercus (Pampas fox)5
"Pseudalopex gymnocercus"
Conepatus chinga (Molina's hog-nosed skunk)61.9 kg
Lepus europaeus 13.4 kg
Sus scrofa (pig)1