Mate-guarding in a promiscuous insect: species discrimination influences context-dependent behaviour

Emily R. Burdfield-Steel*, David M. Shuker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)
2 Downloads (Pure)


Mating strategy is often informed by social context. However, information on social environment may be sensitive to interference by nearby heterospecifics, a process known as reproductive interference (RI). When heterospecific individuals are present in the environment, failures in species discrimination can lead to sub-optimal mating behaviours, such as misplaced courtship, misplaced rivalry behaviours, or heterospecific copulation attempts. All aspects of mating behaviour that are influenced by social context may be prone to RI, including copulatory behaviours associated with mate-guarding in the presence of possible competitors. Here we investigate the effect of three heterospecifics on the mate-guarding behaviour of male Lygaeus equestris seed bugs. We find that, despite previously reported heterospecific mating harassment amongst these species of lygaeid bug, male L. equestris are able to effectively distinguish rival conspecific males from heterospecifics. Thus, heterospecific mating attempts in this group may reflect selection on males to mate opportunistically, rather than a failure of species discrimination.

Original languageEnglish
Pages (from-to)1031-1042
Number of pages12
JournalEvolutionary Ecology
Issue number6
Early online date18 Oct 2014
Publication statusPublished - Nov 2014


  • Species discrimination
  • Species recognition
  • Reproductive interference
  • Mate guarding


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