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The Coevolution of Receptivity Signalling and Body-Size Dimorphism in the Chalcidoidea
in BehaviourSearch for other papers by J. Van Den Assem in
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Search for other papers by F. Jachmann in
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Abstract
In the Chalcidoidea (small hymenopterous parasites of the developmental stages of many kinds of insects) two evolutionary trends can be traced: reduction of male size, and switch of the courtship position of the male relative to the female from rear to front. The positional shift is related to the development of antennal movements produced by the female at the onset of sexual receptivity. The signal function of these movements was shown with experiments including the use of dummies. The experimental results are discussed in relation to selective pressures shaping courtship and mating behaviour in the Chalcidoidea.
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| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 260 | 28 | 3 |
| Gesamttextansichten | 92 | 0 | 0 |
| PDF-Downloads | 18 | 0 | 0 |
The Coevolution of Receptivity Signalling and Body-Size Dimorphism in the Chalcidoidea
in BehaviourSearch for other papers by J. Van Den Assem in
Current site
Google Scholar
PubMed
Search for other papers by F. Jachmann in
Current site
Google Scholar
PubMed
Abstract
In the Chalcidoidea (small hymenopterous parasites of the developmental stages of many kinds of insects) two evolutionary trends can be traced: reduction of male size, and switch of the courtship position of the male relative to the female from rear to front. The positional shift is related to the development of antennal movements produced by the female at the onset of sexual receptivity. The signal function of these movements was shown with experiments including the use of dummies. The experimental results are discussed in relation to selective pressures shaping courtship and mating behaviour in the Chalcidoidea.
| Insgesamt | Letzte 365 Tage | In den letzten 30 Tagen | |
|---|---|---|---|
| Aufrufe von Kurzbeschreibungen | 260 | 28 | 3 |
| Gesamttextansichten | 92 | 0 | 0 |
| PDF-Downloads | 18 | 0 | 0 |
