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dc.contributor.authorOwen, Megan A.
dc.contributor.authorKeating, Jennifer L.
dc.contributor.authorDenes, Samuel K.
dc.contributor.authorHawk, Kathy
dc.contributor.authorFiore, Angela
dc.contributor.authorThatcher, Julie
dc.contributor.authorBecerra, Jennifer
dc.contributor.authorHall, Suzanne
dc.contributor.authorSwaisgood, Ronald R.
dc.date.accessioned2020-06-12T01:40:19Z
dc.date.available2020-06-12T01:40:19Z
dc.date.issued2016
dc.identifier.issn2351-9894
dc.identifier.doi10.1016/j.gecco.2016.02.007
dc.identifier.urihttp://hdl.handle.net/20.500.12634/350
dc.description.abstractHearing sensitivity is a fundamental determinant of a species’ vulnerability to anthropogenic noise, however little is known about the hearing capacities of most conservation dependent species. When audiometric data are integrated with other aspects of species’ acoustic ecology, life history, and characteristic habitat topography and soundscape, predictions can be made regarding probable vulnerability to the negative impacts of different types of anthropogenic noise. Here we used an adaptive psychoacoustic technique to measure hearing thresholds in the endangered giant panda; a species that uses acoustic communication to coordinate reproduction. Our results suggest that giant pandas have functional hearing into the ultrasonic range, with good sensitivity between 10.0 and 16.0 kHz, and best sensitivity measured at 12.5–14.0 kHz. We estimated the lower and upper limits of functional hearing as 0.10 and 70.0 kHz respectively. While these results suggest that panda hearing is similar to that of some other terrestrial carnivores, panda hearing thresholds above 14.0 kHz were significantly lower (i.e., more sensitive) than those of the polar bear, the only other bear species for which data are available. We discuss the implications of this divergence, as well as the relationship between hearing sensitivity and the spectral parameters of panda vocalizations. We suggest that these data, placed in context, can be used towards the development of a sensory-based model of noise disturbance for the species.
dc.language.isoen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S2351989415300317
dc.rights© 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectGIANT PANDAS
dc.subjectHEARING
dc.subjectECOLOGY
dc.subjectNOISE
dc.subjectPOLLUTION
dc.titleHearing sensitivity in context: Conservation implications for a highly vocal endangered species
dc.typeArticle
dc.source.journaltitleGlobal Ecology and Conservation
dc.source.volume6
dc.source.beginpage121
dc.source.endpage131
refterms.dateFOA2020-06-17T02:07:49Z
html.description.abstractHearing sensitivity is a fundamental determinant of a species’ vulnerability to anthropogenic noise, however little is known about the hearing capacities of most conservation dependent species. When audiometric data are integrated with other aspects of species’ acoustic ecology, life history, and characteristic habitat topography and soundscape, predictions can be made regarding probable vulnerability to the negative impacts of different types of anthropogenic noise. Here we used an adaptive psychoacoustic technique to measure hearing thresholds in the endangered giant panda; a species that uses acoustic communication to coordinate reproduction. Our results suggest that giant pandas have functional hearing into the ultrasonic range, with good sensitivity between 10.0 and 16.0 kHz, and best sensitivity measured at 12.5–14.0 kHz. We estimated the lower and upper limits of functional hearing as 0.10 and 70.0 kHz respectively. While these results suggest that panda hearing is similar to that of some other terrestrial carnivores, panda hearing thresholds above 14.0 kHz were significantly lower (i.e., more sensitive) than those of the polar bear, the only other bear species for which data are available. We discuss the implications of this divergence, as well as the relationship between hearing sensitivity and the spectral parameters of panda vocalizations. We suggest that these data, placed in context, can be used towards the development of a sensory-based model of noise disturbance for the species.


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© 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Except where otherwise noted, this item's license is described as © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).