Influence of artificial selection for duration of death feigning on pre- and post-copulatory traits in male Tribolium castaneum
In many animals, investment in anti-predator traits can affect reproductive success. Conversely, males that invest more resources in mating success may have relatively fewer resources to devote to anti-predator traits, leading to increased predation risk. Although previous studies have reported a trade-off in investment between anti-predator traits and reproductive traits in male animals, few studies have specifically investigated the effects of anti-predator behavior on male reproductive traits. Many animals engage in death-feigning as an anti-predator behavior. Herein, we investigated the relationship between the death-feigning behavior and pre- and post-copulatory reproductive traits of male red flour beetles, Tribolium castaneum. In a previous study, we used artificial selection to establish T. castaneum strains with a genetically longer (L-strain) or shorter (S-strain) duration of death-feigning behavior. In the present study, we compared the attractiveness (a pre-copulatory trait) and paternity success (a post-copulatory trait) between L- and S-strain males. The results showed no significant difference in attractiveness or paternity success between the two strains. The results suggest that death-feigning behavior is not correlated with pre- or post-copulatory reproductive traits in male T. castaneum.
KeywordsReproduction Attractiveness Paternity success Anti-predator trait Mating success
This work was supported by a Grant-in-Aid for Scientific Research (KAKENHI 26291091 and 18H02510, Ministry of Education, Culture, Sports, Science and Technology, Ministry of Education, Culture, Sports, Science and Technology) to T. M.
Compliance with ethical standards
Conflict of interest
K. Matsumura and T. Miyatake declare that they have no conflict of interest.
All applicable international, national, and institutional guidelines for the care and use for animals were followed.
Research involving human participants and/or animals
This article does not contain any studies with human participants performed by any of the authors.
- Andersson M (1994) Monographs in behavior and ecology: sexual selection. Princeton University Press, PrincetonGoogle Scholar
- Birkhead TR, Møller AP (1998) Sperm competition and sexual selection. Academic Press, LondonGoogle Scholar
- Blum MS, Blum NA (1979) Sexual selection and reproductive competition in insects. Academic Press, New YorkGoogle Scholar
- Eberhard WG (1996) Female control: sexual selection by cryptic female choice. Princeton University Press, PrincetonGoogle Scholar
- Edmunds M (1974) Defence in animals. Longman, LondonGoogle Scholar
- Houde AE (1997) Sex, color and mate choice in guppies. Princeton University Press, PrincetonGoogle Scholar
- R Core Team (2017) R: a language and environment for statistical computing. R Foundation for Statistical Computing, ViennaGoogle Scholar
- SAS Institute (2015) JMP 12.2.0. SAS Institute, CaryGoogle Scholar
- Simmons LW (2001) Sperm competition and its evolutionary consequences in the insects. Princeton University Press, PrincetonGoogle Scholar
- Suzuki T (1980) 4,8-Dimethyldecanal: the aggregation pheromone of the flour beetle, Tribolium castaneum and T. confusum (Coleoptera: Tenebrionidae). Agric Biol Chem 44:2519–2520Google Scholar