bioRxiv preprint doi: https://doi.org/10.1101/2020.02.10.941740; this version posted February 10, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 Automated flight interception traps for 2 interval sampling of insects 3 Janine Bolliger 1*, Marco Collet 1,2, Michael Hohl 1, 2, Beat Wermelinger 1, Martin K. Obrist 1 4 5 1 WSL Swiss Federal Research Institute, Zürcherstrasse 111, CH-8903 Birmensdorf 6 2 WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, CH-7260 Davos 7 * corresponding author,
[email protected], phone: +41 44 739 23 93, fax: +41 00 739 22 15 8 9 Short title: Automated interval sampling of insects 10 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.02.10.941740; this version posted February 10, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 11 Abstract 12 Recent debates on insect decline require sound assessments on the relative drivers that may negatively 13 impact insect populations. Often, baseline data rely on insect monitorings that integrates catches over 14 long time periods. If, however, effects of time-critical environmental factors (e.g., light pollution) are 15 of interest, higher temporal resolution of insect observations during specific time intervals are required 16 (e.g., between dusk and dawn).