Sierra Region (secondary forest)
Basic information
Sample name: Sierra Region (secondary forest)

Reference: J. L. Knowlton, E. E. Mata Zayas, A. J. Ripley, B. Valenzuela-Cordova, and R. Collado-Torres. 2019. Mammal diversity in oil palm plantations and forest fragments in a highly modified landscape in southern Mexico. Frontiers in Forests and Global Change 2:67 [ER 3483]
Country: Mexico
State: Tabasco

Coordinate: 17° 13' 40" N, 92° 51' 5" W
Basis of coordinate: stated in text
Geography comments: "We conducted this study in the southern part of the Mexican state of Tabasco, close to the border with Chiapas, in the municipalities of Teapa, Tacotalpa and Jalapa"
"This area is called the Sierra Region"
Climate and habitat
Habitat: tropical/subtropical moist broadleaf forest
Altered habitat: secondary forest
Protection: unprotected
Substrate: ground surface
Disturbance: agriculture, grazing
MAT: 26.0
MAP: 3250.0
Habitat comments: "The climate is hot, humid, and rainy, with the average temperature and precipitation ranging from 24 to 28°C and 2, 500–4, 000 mm, respectively"
"The landscape is composed of fragments of high and medium subperennifolia tropical forest, secondary vegetation, annual crops, and forest plantations and pastures, with the latter being the dominant matrix"
Life forms: carnivores, rodents, ungulates, other large mammals, other small mammals
Sampling methods: no design, automatic cameras
Sample size: 1266
Years: 2017, 2018
Days: 178
Nets or traps: 36
Net or trap nights: 2136
Camera type: digital
Cameras paired: no
Sampling comments: "We identified and selected nine secondary forest fragments and nine mature oil palm plantations (>10 years old) for the mammal surveys"
"Within each of these sites we placed four camera traps (Browning Strike Force™ HD PRO, United States) ≥200 m from one another at a height of 0.5 m from the ground and secured with a cable lock"
"All cameras were configured to medium sensitivity and one-second intervals between consecutive photographs (four per trigger)"
"All sites were not sampled simultaneously, but rather surveys were organized sequentially in different sessions to cover the three main seasons of the region: cold fronts, dry, and wet"
"The first sampling session took place from 15 December 2017 to 15 February 2018; the second from 19 April to 3 July 2018, and the third from 19 October to 17 December 2018"
"During each sampling session 24 cameras were active within six different sites: three oil palm plantations and three forest fragments"
Consequently, there were a total of 36 camera traps across the nine secondary forest fragments (4 traps x 3 sites x 3 sessions), with three different secondary forest sites sampled in each session (nine sites total)
Sample: 3822
Contributor: Benjamin Carter
Enterer: John Alroy
Created: 2021-06-17 13:07:03
Modified: 2021-06-17 13:11:53
Abundance distribution
16 species
1 singleton
total count 1266
extrapolated richness: 17.8
Fisher's α: 2.582
geometric series k: 0.6583
Hurlbert's PIE: 0.7334
Shannon's H: 1.6599
Good's u: 0.9992
Each square represents a species. Square sizes are proportional to counts.