Figure 1

Location of the study area"

Table 1

The assignment of permeability values"

Figure 2

The appropriate current density map for multiple species in Xishuangbanna"

Figure 3

Locations of local representative species"

Figure 4

The current-specific curve derived from basic Zonation output"

Figure 5

Ranking result of corridors derived from the Zonation analysis (a). The top 20% of the potential corridors which were viewed as key corridors and the block points were marked as green points (b). Those marked with numbers were farmland block points."

Table 2

Proportions of potential corridors for different ranking levels in each national nature reserve (%)"

Figure 6

The comparison of planned corridor areas and key corridors"

Figure 7

Comparisons of correlation coefficients between the first and second trials with the same number of nodes (a); correlation coefficients between 50 nodes and fewer nodes number (b)"

Figure A1

Top 20% of the potential corridors were extracted and classified into two levels (0.8-0.9 and 0.9-1). The block points were marked as the green points according to following standards (these standards must be satisfied at the same time): All the intersections should locate at top 10% area (0.9-1).There should be at least 5 top 10% grids in a 3 × 3 road grid which surrounds the target intersection.Compared with the situation in the 3 × 3 road grid, it is supposed to increase at least 1 key corridor grid that belongs to top 20% in a 4 × 4 road grid which includes the compared 3 × 3 road grid.Any two intersections are at least 400 m apart."

Figure A2

Details of the distribution of key corridors (top 20%) in each reserve (Mengyang, Mengla, Shangyong, Menglun, Mangao) were shown respectively. The key corridors distributed evenly within the scope of Mengyang and Mengla nature reserves, while the key corridors exhibited much more clear structures in the other three reserves. These areas recognized as key corridors at the scale of Xishuangbanna play a critical role in biodiversity protection for sub-reserve management."

Figure A3

Different scenarios - 5 nodes, 10 nodes, 15 nodes, 20 nodes, 25 nodes and 50 nodes - were shown as the order alphabetic characters (from “a” to “f”). (i) and (ii) represent the first trial and the second trial respectively which were under the same nodes number. The differences among these current density maps can be intuitively compared."