Published March 28, 2022 | Version v1
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Artificially-perforated holes in stems of small hogweed (Heracleum sphondylium L.) mimic ecosystem engineering by the parsnip webworm (Depressaria radiella Goeze)

Authors/Creators

  • 1. Department of Ecological Sciences, Section Animal Ecology, Vrije Universiteit ,De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands
  • 2. Laboratory of Entomology, Wageningen University, PO Box 16, 6700 AA, Wageningen, The Netherlands
  • 3. Department of Terrestrial Ecology, Netherlands Institute of Ecology, Droevendaalsesteeg 10, 6700 AB Wageningen, The Netherlands

Description

We conducted a field experiment to determine if artificial holes perforated into stem compartments of Heracleum sphondylium mimic the natural situation with Depressaria radiella. At five locations near the city of Leiden, the Netherlands, H. sphondylium plants were exposed to different treatments: a single hole perforated in the first, second or third stem compartment, or in all three compartments. After three weeks, arthropod numbers were counted inside and around hogweed stems. 

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