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Figure 7


Fig. 7. Distance of focus (DOF) and signal overlap zone (SOZ) in relation to position to the hedge (shaded area). (A) Three-dimensional representation of the flight paths of 22 bats and of the hedge they were flying along. The open rectangle at Y=2 m indicates the size and position of the cross section shown in B and C. (B) Cross section through the hedge and flight paths as indicated by the rectangle in A. Symbols show where each individual bat has passed the cross-sectional plane. Circles around symbols have a radius that equals the DOF of the call emitted by the particular bat closest to the cross sectional plane. (C) Same cross-section as in B, with circles indicating the limit of SOZ.





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