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

Reference: M. J. Andrade-Nùñez 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, 55° 46' W
Coordinate 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

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 number: 1908

Contributor: John Alroy

Enterer: John Alroy

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

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

Abundance distribution
7 species
2 singletons
total count 41
geometric series index: 12.2
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
Each square represents a species. Square sizes are proportional to counts.
Register
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