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Neglecting the call of the wild: Captive frogs like the sound of their own voice

Figueiredo Passos, L, Garcia, G and Young, RJ (2017) Neglecting the call of the wild: Captive frogs like the sound of their own voice. PLoS One, 12 (7). ISSN 1932-6203

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Abstract

Acoustic communication is highly influential in the expression of social behavior by anuran amphibians, transmitting information about the individual’s physical condition and motivation. We studied the phonotactic (approach movements) responses of wild and captive male golden mantella frogs to conspecific wild and captive playback calls to determine the impact of captivity on social behaviour mediated by vocalisations. Calls were recorded from one wild and two captive populations. Phonotaxis experiments were then conducted by attracting M. aurantiaca males across a PVC grid on the forest floor or enclosure floor to a speaker. For each playback, the following parameters were recorded to define the accuracy of phonotaxis: (1) number of jumps; (2) jump angles; (3) jump distances; (4) path straightness. During this experiment we observed that wild frogs had a similar behavioural (phonotaxis) response to calls independent of their source while frogs from Chester Zoo had a significantly stronger response to calls of other conspecifics held separately at Chester Zoo. The lack of appropriate phonotaxis response by captive bred frogs to the calls of wild conspecifics could have serious negative conservation implications, if the captive bred individuals were released back to the wild.

Item Type: Article
Uncontrolled Keywords: MD Multidisciplinary
Subjects: Q Science > QL Zoology
Divisions: Natural Sciences and Psychology
Publisher: Public Library of Science
Date Deposited: 04 Apr 2019 09:59
Last Modified: 04 Apr 2019 10:04
DOI or Identification number: 10.1371/journal.pone.0181931
URI: http://researchonline.ljmu.ac.uk/id/eprint/10493

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