Fig. 1. Map of study area with wetlands in prairie pothole region, Deuel county (dotted line) and Big Sioux Basin of ecoregion (red solid line), South Dakota (solid line). Polygon indicates geographically isolated wetlands.
Fig. 2. Calculating distances between a pair of wetlands. Polygons are the shape of real wetlands while circles are transformed wetlands
Fig. 3. Generating ecological networks using threshold distance model (a: 1 km, b: 2 km, c: 3 km)
Fig. 4. Generating ecological networks using exponential dispersal kernel(a: 0.6 km, b: 1.2 km, c: 1.8 km mean distance)
Fig. 5. Generating ecological networks using heavy-tailed dispersal model(a: β = 2, b: β = 3, c: β = 3)
Fig. 6. Spatial distribution of node degrees in the ecological network generated by threshold distance model (a: 1km, b: 2km, c: 3km)
Fig. 7. Spatial distribution of node degrees in the ecological network generated by exponential dispersal kernel (a: 0.6km, b: 1.2km, c: 1.8km mean distance)
Fig. 8. Spatial distribution of node degrees in the ecological network generated by heavy-tailed dispersal model (a: β =2, b: β = 2.5, c: β = 3)
Table 1. Metric values of ecological networks by dispersal models
Table 2. Correlation coefficients of the degrees between ecological network models
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