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

Reference: M. J. Andrade-Nez 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]
Country: Uruguay

Coordinate: 31° 11' S, 55° 46' W
Basis of coordinate: 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)
Climate and habitat
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
Life forms: carnivores, ungulates, other large mammals, other small mammals
Sites: 10
Sampling methods: no design, baited, automatic cameras
Sample size: 41
Years: 2008
Days: 24
Nets or traps: 40
Net or trap nights: 960
Camera type: digital
Cameras paired: no
Trap spacing: 0.060
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"
Sample: 1908
Contributor: John Alroy
Enterer: John Alroy
Created: 2016-01-10 17:24:46
Modified: 2016-01-12 17:40:45
Abundance distribution
7 species
2 singletons
total count 41
standardised richness: not computable
Fisher's α: 2.427
geometric series k: 0.6020
Hurlbert's PIE: 0.6774
Shannon's H: 1.4801
Good's u: 0.9512
Cerdocyon thous215.2 kg carnivore-frugivore
Dasypus novemcinctus44.4 kg invertivore
Mazama gouazoubira314 kg frugivore-browser
Lycalopex gymnocercus55.6 kg carnivore-frugivore
"Pseudalopex gymnocercus"
Conepatus chinga61.9 kg invertivore
Lepus europaeus13.4 kg herbivore
Sus scrofa154 kg herbivore