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Selective phonotaxis by males in the Majorcan midwife toad

Bush, Sarah L.; Dyson, Miranda L. and Halliday, Timothy R. (1996). Selective phonotaxis by males in the Majorcan midwife toad. Proceedings of the Royal Society B: Biological Sciences, 263(1372) pp. 913–917.

DOI (Digital Object Identifier) Link: https://doi.org/10.1098/rspb.1996.0135
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Abstract

Males are expected to exhibit mating preferences when there is high variance in the quality of females or when males are limited to a small number of matings. In the Majorcan midwife toad, Alytes muletensis, the male performs parental care by carrying the eggs wrapped in a string around his hind legs. Both sexes possess courtship vocalizations which they use to advertise receptivity. We looked for evidence of male mating preferences in a phonotaxis arena in which males were presented with two alternative synthetic female calls. We predicted that males should prefer to mate with large females because of maternal effects on egg size, and that this preference would be manifest by selective phonotaxis toward low frequency calls. We also predicted that males should prefer high intensity calls as indicators of the energetic or motivational state of the female. Contrary to our prediction, males did not exhibit a preference for low frequency calls. The results suggest that there is stabilizing selection on call frequency and directional selection on call intensity.

Item Type: Journal Item
Copyright Holders: 1996 Royal Society
ISSN: 1471-2954
Project Funding Details:
Funded Project NameProject IDFunding Body
GrantNot SetBBSRC (Biotechnology and Biological Sciences Research Council)
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences
Item ID: 44573
Depositing User: Miranda Dyson
Date Deposited: 08 Oct 2015 15:02
Last Modified: 07 May 2019 07:56
URI: http://oro.open.ac.uk/id/eprint/44573
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