Male traits are expected to evolve on the basis that they help maximize reproductive success. Prolonged copula duration is a commonly observed trait and this may sometimes be an adaptive male tactic that results in increased paternity against rival males. This study evaluated direct and indirect influences of prolonged copula duration on reproduction and offspring development in the parthenium beetle, Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae). Prolonged copula duration was correlate…
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