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Flavonoid wing pigments increase attractiveness of female common blue (Polyommatus icarus) butterflies to mate-searching males |
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| Authors: | Frank Burghardt Helge Knüttel Mechthild Becker K Fiedler |
| Institution: | Lehrstuhl für Pharmazeutische Biologie, Julius-von-Sachs-Institut für Biowissenschaften, Universit?t Würzburg, Julius-von-Sachs-Platz 2, 97082 Würzburg, Germany, DE Lehrstuhl Tier?kologie I, Universit?t Bayreuth, Universit?tsstrasse 30, 95440 Bayreuth, Germany e-mail: konrad.fiedler@uni-bayreuth.de, DE |
| Abstract: | Common blue butterflies (Polyommatus icarus) sequester flavonoids from their larval host plants and allocate these UV-absorbing pigments to the wings. In field experiments using dummies constructed from female butterflies, mate-searching males inspected flavonoid-rich dummies more intensively than those with little or no flavonoids. Flavonoid content as signalled by UV-wing pattern may indicate ontogenetically determined female quality or enhance detectability to males. Received: 21 March 2000 / Accepted in revised form: 17 May 2000 |
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