Figure 1: diagram of the trap used in this study, setup using instructions provided (Authors own).
Figure 2: Set up of separate plastic board, including location of bait, masking tape and paper (authors own).
The study was carried out using eight sites with traps being placed within selected shrubs, four within R.
ponticum shrub and four within T. baccata shrub, between October 16th,
2018 and January 16th, 2019. Sites were selected based on shrub height, as well as distance from the path.
Shrubs were appropriate if they were a minimum of 2m from a path, preventing human disturbance and
accidental damage, and a maximum of 10m from a path, typically the maximum distance that was safe and
easy for experimenters to access whilst still being able to see the path. A minimum height of 1m was required
to allow traps to be fully covered, although no maximum height was implemented. The sites selected can be
seen figure 3, with traps 1, 3, 7 and 8 being based in R. ponticum shrubs and traps 2, 4, 5 and 6 being based in
T. baccata shrubs.
Papers present on traps were left in-situ for a maximum of 24 hours and then collected and replaced,
preventing the build-up and overlap of tracks. Bait was also replaced every 24 hours, or when all bait had been
removed, to avoid a lack of bait from influencing results. Collections occurred until at least 30 days-worth of
data had been collected.
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