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Potential Impact of Construction Noise on Selected Zoo Animals

By Richard Jakob-Hoff, Michael Kingan, Chiaki Fenemore, Gian Schmid, John F. Cockrem, Amanda Crackle, Emily Van Bemmel, Rebecca Connor, Kris Descovich

Category Journal Articles
Abstract

In anticipation of a major construction project in an urban New Zealand zoo, a study was initiated to assess the response to construction noise of selected animal species (elephant, giraffe, emu and alligator) previously observed to be sensitive to this kind of noise. The overall aim was to detect any signs of aversive responses to this noise to enable keepers to recognize these and take any necessary mitigating actions during the construction period. The experimental approach involved the creation of acoustic maps of each focal animal enclosure, a series of 90-min video recordings of the animals’ behavior in response to ambient noise (control) and amplified broadcast of pre-recorded continuous and intermittent construction noise. Concentration of fecal corticosterone metabolites was also measured for the emus. Key findings were that giraffes, elephants and emus appeared to show an increase in behaviors that could indicate stress or agitation including vigilance and locomotion and may prefer quieter regions of their enclosure during sound exposure. Giraffes also increased close contact with conspecifics when exposed to construction noise. While alligators did not show clear evidence of noise-related stress, our findings indicated that all focal species showed some behavioral responses to recorded construction noise. 

Submitter

Marcy Wilhelm-South

Purdue University

Date 2019
Publication Title Animals
Volume 9
Issue 8
Pages 25
Publisher MDPI
DOI 10.3390/ani9080504
URL https://www.mdpi.com/2076-2615/9/8/504
Language English
Additional Language English
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Tags
  1. Alligators
  2. Animal behavior
  3. Animal roles
  4. Animal welfare
  5. Birds
  6. Elephants
  7. Environment
  8. Giraffes
  9. Noise
  10. open access
  11. Zoo and captive wild animals
Badges
  1. open access