Study

Deer responses to sounds from a vehicle-mounted sound-production system

  • Published source details Valitzski S.A., D'Angelo G.J., Gallagher G.R., Osborn D.A., Miller K.V. & Warren R.J. (2009) Deer responses to sounds from a vehicle-mounted sound-production system. The Journal of Wildlife Management, 73, 1072-1076

Actions

This study is summarised as evidence for the following.

Action Category

Fit vehicles with ultrasonic warning devices

Action Link
Terrestrial Mammal Conservation
  1. Fit vehicles with ultrasonic warning devices

    A replicated, controlled study in 2006 at a college campus in Georgia, USA (Valitzski et al. 2009) found that high frequency sounds from moving vehicles did not reduce white-tailed deer Odocoileus virginianus behaviours that were likely to cause a deer–vehicle collision. At 0.28 kHz, there was a significant increase in the proportion of behaviours likely to cause a collision (13%) compared to a vehicle without treatment (5%). At four other frequencies, there was no significant difference in proportions of negative behavioural responses compared to the vehicle without treatment (1–28 kHz: 6–9%). The proportion of behaviours likely to decrease deer-vehicle collisions did not differ between different high frequencies and no high-frequency sound (0.28 kHz: 33%; 1 kHz: 37%; 8 kHz: 24%; 15 kHz: 33%; 28 kHz: 24%; no high-frequency sound: 35%;). Two road sections (≥ 5 km apart), 280 m and 220 m long, were studied. For each of 319 trials, a deer was observed before and during one of six randomly assigned treatments: 0.28, 1, 8, 15 or 28 kHz or no sound. The high-frequency sounds (within deer hearing range) were played at 70 decibels from front-mounted speakers on the vehicle (48 km/hr). Deer within 10 m of the road or ahead of the vehicle were monitored from an observation platform, from 06:00 to 09:00 h and 19:00 to 22:00 h, in April and June 2006.

    (Summarised by: Rebecca K. Smith)

Output references

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