Local adaptation and sexual selection: a reciprocal transfer experiment with the grasshopper Chorthippus biguttulus |
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Authors: | Kirsten Klappert Klaus Reinhold |
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Institution: | (1) Evolutionary and Environmental Biology, University of St. Andrews, Dyers Brae House, St. Andrews, Fife, KY16 9TH, UK;(2) Institut für Evolutionsbiologie und Ökologie, Rheinische Friedrich-Wilhelms-Universität Bonn, An der Immenburg 1, 53121 Bonn, Germany |
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Abstract: | Immigration into locally adapted populations has been suggested, among other potential causes, to maintain genetic variance in fitness necessary for good-genes models. Using a reciprocal transplant experiment we examined whether females prefer native to transferred males in the grasshopper Chorthippus biguttulus. On average, native and transferred males did not differ in their attractiveness, measured as female response rate to playbacks of male acoustic courtship signals. In line with this result, we found no significant effect of transfer on body size, condition, fluctuating asymmetry or song traits. However, the reciprocal transplant experiment showed that environmental conditions did influence body condition and maximum loudness of the calling song, but that the genetic origin of male grasshoppers had no significant effect on any of the analysed traits.Communicated by L. Simmons |
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Keywords: | Chorthippus biguttulus Local adaptation Male choice Reciprocal transplant experiment Sexual selection |
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