Heterospecific interaction in two beetle species: Males with weapons decrease the reproductive success of species with weaponless males
Rui Onishi,
Kentarou Matsumura
Abstract:Many species often show male–male combat for mating opportunities and resources within the species. Sexual selection through this radical combat leads to the evolution of males with exaggerated traits used as weapons, such as horns or mandibles, that often result in victory during combat. However, heterospecific interaction due to errors in species identification has often been observed, which results in decreased mating opportunities within the same species and fewer fertilized eggs. Males with exaggerated we… Show more
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