Effects Of Traffic Noise On Auditory Surveys Of Urban White-Winged Doves Academic Article uri icon

abstract

  • We investigated the effects of urban noise on auditory surveys of White-winged Doves (Zenaida asiatica) in two major cities in Texas. We conducted auditory point counts throughout the morning in San Antonio (n = 6) and Austin (n = 10) during week days (when traffic noise is higher) and weekends. We categorized survey points as near or far from roads (<0.8 and >0.8 km, respectively) for comparison. We documented no difference in density estimates in Austin between week days (46 10 pairs/ha) and weekends (52 10 pairs/ha; P = 0.23); however, weekend estimates were consistently higher throughout the morning. Weekend density estimates in San Antonio were higher after 0620 hrs (P < 0.04), the time coinciding with beginning of the morning commute during week days in this city. We documented that weekend estimates (45 5 pairs/ha) were higher than week day estimates (33 5 pairs/ha) for points near roads (within 0.8 km; P = 0.02) but not for points far from roads (P = 0.16). Our results indicate that traffic noise can bias auditory surveys. Survey methods that account for probability of detection should be used to correct for potential noise bias.

published proceedings

  • The Wilson Journal of Ornithology

author list (cited authors)

  • Breeden, J. B., Hernndez, F., Bingham, R. L., Silvy, N. J., & Waggerman, G. L.

citation count

  • 3

complete list of authors

  • Breeden, Jeffrey B||Hern├índez, Fidel||Bingham, Ralph L||Silvy, Nova J||Waggerman, Gary L

publication date

  • June 2008