ArticleInsects2026
Prevalence of Same-Sex Sexual Behavior in Termites: Persistence Under Mate-Seeking Stress Absence.
Article in Insects, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
7 authors.
Funding
Abstract
Same-sex sexual behavior is an enigma in behavioral ecology as it does not result in reproduction. Previous studies on the evolution of same-sex sexual behavior have primarily focused on factors such as recognition mechanisms, resource constraints, and challenges in securing an opposite-sex partner, while overlooking the investigation into active same-sex sexual behavior without environmental stress. Here, through experimentation, we investigated the stability of same-sex pairs in tandem running, the mating behavior of pairs that form same-sex tandem runs, and the occurrence of same-sex sexual behavior (SSB) when opposite-sex partners are available. Results indicated that while the stability of same-sex tandems is lower than that of opposite-sex tandems, both males and females are capable of expressing sex-specific behaviors typical of the opposite sex and forming same-sex tandems. Notably, SSB was observed not only in same-sex pairing contexts but also when individuals had the autonomy to choose between same-sex and opposite-sex partners. These results demonstrate that same-sex sexual behavior in termites is not a behavioral response to environmental stress (e.g., the absence of opposite-sex partners) but rather an actively expressed behavior. These findings highlight the role of sex role plasticity in the evolution of same-sex sexual behavior, providing a new mechanistic perspective for understanding same-sex sexual behavior in social insects.
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