Figure 2. Schematic representation of the sampling units used to survey adults and larvae at each sampling point.

Adults were captured by pitfall trapping (i.e., one pitfall trap per sampling point; panel A) and larvae were mapped at three spatial scales: 1×1 m quadrat (represented by the shaded area in panel B), 50×50 cm quadrat (represented by the shaded area in panel C) and 25×25 cm quadrat (the shaded area in panel D exemplifies one of the 16 quadrats mapped at each sampling point).