Fig 1.
The map of the location of our study area, Carajás National Forest, Para, Brazil, highlighting the presence of Canga areas and the activity mining areas of Vale company.
Table 1.
Number of individuals and relative abundance of non-volant small mammal species recorded at Carajás National Forest in Canga and Forest areas.
Legend: RA—Relative abundance (calculated for each vegetation type); NR—No recorded species.
Table 2.
Richness (S) and diversity index of Shannon-Weiner (H) of non-volant small mammals in the sampled sites in the Carajás National Forest.
Fig 2.
Multidimensional Scaling (NMDS) of the diversity and number of individuals of non-volant small mammals in the Carajás National Forest.
The symbols separate the vegetation types (Canga-circles, and forest-triangle) with the size of the symbols indicating the distance from the impact.
Fig 3.
Multidimensional Scaling (NMDS) of the diversity and number of individuals of each species of non-volant small mammals in the areas.
(A) Canga closest to the impact and Canga further to the impact; (B) forest closest to the impact and forest further to the impact in the Carajás National Forest. Legend: C = area more near to the impact—triangle; I = area closest to the impact—circles.
Fig 4.
Comparison of the second axis of the NMDS distance with the distance to the mine (impact) in the impacted forest in the Carajás National Forest.
Considering each site as an independent sample.
Fig 5.
Comparison of the number of individuals of non-volant small mammals with the distance from the mine in the Carajás National Forest, Pará, Brazil. Considering each site as an independent sample.
(A) impacted Canga and (B) impacted forest. The function line in A is not considering the transect C marked with a triangle in the graph (see text for explanations).
Fig 6.
Detectability of species of small mammals on control and impacted areas in the Carajás National Forest, Pará, Brazil.
Each point represents one sampled site.
Table 3.
Occupancy best models for the non-volant small mammal species in the Carajás National Forest, Pará, Brazil.
Covariate: distance to the mine (dist_mine). Ψ = occupancy and p = detectability.