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Insects 2018, 9(3), 112; https://doi.org/10.3390/insects9030112

Previous Interspecific Courtship Impairs Female Receptivity to Conspecifics in the Parasitoid Wasp Nasonia longicornis But Not in N. vitripennis

Institute of Zoology, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
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Received: 27 July 2018 / Revised: 18 August 2018 / Accepted: 22 August 2018 / Published: 1 September 2018
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Abstract

Interspecific sexual interactions are not uncommon in animals. In sympatry, females often face the risk of accidentally mating with a heterospecific male. Based on the actual risks imposed by the environment at a given time and place, females should be able to adjust their mate acceptance in order to avoid interspecific copulations as well as accidentally refusing to mate with a conspecific. We investigate the ability of females of the two parasitoid wasp species Nasonia vitripennis (Nv) and N. longicornis (Nl) to adjust their mate acceptance in response to previous unsuccessful courtship by heterospecific males. We show that Nl females are more reluctant to mate with a conspecific male when having been courted previously by a heterospecific male, but Nv females are not. We argue that this strategy is reasonable for Nl females but not for Nv females, which follow a different strategy to avoid the fitness costs imposed by heterospecific copulations. View Full-Text
Keywords: behavioural plasticity; mate discrimination; parasitic wasp; reproductive interference; sympatry behavioural plasticity; mate discrimination; parasitic wasp; reproductive interference; sympatry
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Mair, M.M.; Seifert, N.; Ruther, J. Previous Interspecific Courtship Impairs Female Receptivity to Conspecifics in the Parasitoid Wasp Nasonia longicornis But Not in N. vitripennis. Insects 2018, 9, 112.

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