| Title: | Fear effects on bank voles (Rodentia: Arvicolinae): testing for repellent candidates from predator volatiles |
| Author(s): | Villalobos A; Schlyter F; Birgersson G; Koteja P; Lof M; |
| Address: | "Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Lomma, Sweden. Busgen-Institute, Department of Forest Zoology and Forest Conservation, Georg-August-Universitat Gottingen, Gottingen, Germany. Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Lomma, Sweden. Excellent Team for Mitigation, Faculty of Forestry & Wood Sciences, Czech University of Life Sciences Prague, Suchdol, Czech Republic. Institute of Environmental Sciences, Jagiellonian University, Krakow, Poland" |
| ISSN/ISBN: | 1526-4998 (Electronic) 1526-498X (Print) 1526-498X (Linking) |
| Abstract: | "BACKGROUND: Arvicolinae rodents are known pests causing damage to both agricultural and forest crops. Today, rodenticides for rodent control are widely discouraged owing to their negative effects on the environment. Rodents are the main prey for several predators, and their complex olfactory system allows them to identify risks of predation. Therefore, the potential use of predators' scents as repellents has gained interest as an ecologically based rodent control method. In a two-choice experiment, we investigated the potential repellent effects of five synthetic predator compounds: 2-phenylethylamine (2-PEA), 2-propylthietane (2-PT), indole, heptanal and 2,5-dihydro-2,4,5-trimethylthiazoline (TMT), at 1% and 5% doses, using the bank vole (Myodes glareolus) as a rodent model. RESULTS: The compound 2-PEA reduced both the food contacts and the time spent by voles in the treatment arm compared to the control arm. Likewise, 2-PT-treated arms reduced the food contacts, and the voles spent less time there, although this latter difference was not significant. Indole also showed a tendency to reduce the time spent at the treatment arm; however, this result was not significant. Unexpectedly, TMT had the reverse effect in showing attractive properties, possibly due to odor cues from differently sized predators and intraguild predation in nature. We found no dose-related effects for any compounds tested. CONCLUSION: Our results suggest that the 2-PEA and 2-PT are both effective odor stimuli for triggering reduced food contacts and area avoidance, and they may be good repellent candidates. We suggest further testing of 2-PEA and 2-PT in field experiments to further determine their dose-efficiency as repellents against rodents in more natural environments. (c) 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry" |
| Keywords: | Animals *Arvicolinae Fear Pheromones Predatory Behavior *Rodentia area avoidance bank vole foraging repellents rodent pest management; |
| Notes: | "MedlineVillalobos, Adrian Schlyter, Fredrik Birgersson, Goran Koteja, Pawel Lof, Magnus eng OP RDE at the Czech University of Life Sciences, Prague/ Polish National Science Centre grant/ Svenska Forskningsradet Formas/ England 2022/01/08 Pest Manag Sci. 2022 Apr; 78(4):1677-1685. doi: 10.1002/ps.6787. Epub 2022 Jan 26" |
