Effectiveness of odour repellents on red deer (<Emphasis Type="Italic">Cervus elaphus</Emphasis>) and roe deer (<Emphasis Type="Italic">Capreolus capreolus</Emphasis>): a field test |
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Authors: | Morten Elmeros Jens K Winbladh Poul N Andersen Aksel Bo Madsen Jens T Christensen |
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Institution: | 1.Department of Wildlife Ecology & Biodiversity, National Environmental Research Institute,Aarhus University,R?nde,Denmark;2.Department of Biological Sciences,Aarhus University,?rhus C,Denmark |
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Abstract: | Chemical repellents are promoted as a method to reduce ungulate–vehicle collisions and ungulate browsing damages to agricultural
and forestry resources. We tested the effectiveness of two odour repellents (Mota FL and Wolf Urine) on the foraging behaviour
and area avoidance of free-ranging roe deer (Capreolus capreolus) and red deer (Cervus elaphus). The effects of the repellents were assessed by comparing deer visitation rates to sand arenas before and after application
of repellents and visitation rates to control arenas. Neither of the tested products reduced deer visitation rates. Rapid
habituation to olfactory stimuli and lack of sensitivity to predator odours may explain the ineffectiveness of the repellents
to alter the behaviour of the deer. The results indicate that the tested products have no effects on roe deer and red deer
behaviour and suggest that the effectiveness of the chemical area repellents as a measure to reduce deer–vehicle collision
risk and browsing damages is questionable. |
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