Figure 3. Three trap configurations: regular, clustered, and sequential.

Three trap configurations were evaluated, shown with J = 128 traps: (a) regular array, (b), clustered, and (c) a temporal sequence in which clustered traps of one arrangement (e.g. triangle) are moved halfway through the sampling period to new grids (e.g. squares). Gray gridlines in (b) and (c) overlay the non-overlapping grid sizes of an estimated female home range. The black outline around the traps depicts the 2,624 km² study area; the large gray square shows the extent of the 4,100 km² landscape.