Study

Evaluation of wildlife warning reflectors for altering white-tailed deer behavior along roadways

  • Published source details D'Angelo G.J., D'Angelo J.G., Gallagher G.R., Osborn D.A., Miller K.V. & Warren R.J. (2006) Evaluation of wildlife warning reflectors for altering white-tailed deer behavior along roadways. Wildlife Society Bulletin, 34, 1175-1183

Actions

This study is summarised as evidence for the following.

Action Category

Install wildlife warning reflectors along roads

Action Link
Terrestrial Mammal Conservation
  1. Install wildlife warning reflectors along roads

    A before-and-after study in 2004–2005 at a college campus in Georgia, USA (D'Angelo et al. 2006) found that wildlife warning reflectors did not reduce white-tailed deer Odocoileus virginianus behaviours that were likely to cause collisions with vehicle. When red or blue-green reflectors were installed, there was a proportional increase in behaviours that were likely to cause deer–vehicle collisions. White or amber reflectors resulted in an increased rate both of responses that increase and that decrease collision likelihood. A total of 1,370 deer responses were recorded. A smaller proportion of animals stopped moving toward the road as a vehicle approached when reflectors were installed (red: 13%; white: 55%; blue-green: 14%; amber: 50%) compared to before reflectors were installed (64%). In two test areas (5 km apart), 15 posts were installed 15 m apart, staggered on opposite sides of the road. After two weeks, Strieter-Lite Wild Animal Highway Warning Reflectors were installed on posts (61–76 cm above road). Deer–vehicle interactions were observed using an infrared camera for four hours/night before (15 nights in November 2004–January 2005) and after installation of reflectors (January–May 2005). Two reflector colours were tested in each area for 15 nights each.

Output references

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