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Physiology, Biochemistry, and Toxicology

Poster

PBT: Behavior, Pest Management, and Physiology On-Demand Posters

Evaluating investment tradeoff between mating behavior and tonic immobility in the sweetpotato weevil (Coleoptera: Brentidae)

On-Demand Poster

    Presenting Author(s)

  • Haoyong Ouyang

    Ph.D
    Florida A&M University
    Tallahassee, Florida, United States

    • Co-Author(s)

  • Muhammad Haseeb

    Associate Professor and IPM Coordinator
    Florida A&M University
    Tallahassee, Florida, United States

  • RZ

    Runzhi Zhang

    Professor of Entomology
    Chinese Academy of Sciences
    Beijing, Beijing, China (People's Republic)

Tonic immobility (TI) is one of the anti-predator behavior to reduce the influence of predation. Although, the relationship between TI and mating behavior have been reported, few studies investigated the influence of TI to different phases of insect copulation. Courtship and copulation both are important phases of mating behavior. The possible costs involve energy expenditures and can enhance predation risk. Artificially induced courting, copulating and resting the sweetpotato weevil (SPW) Cylas formicarius (Coleoptera: Brentidae) in the L-strain and S-strain under the TI was compared for the duration of courtship. The duration of TI of courtship and copulation are significant shorter than resting group in L and S strain. This study will help to determine the investment trade-off between anti-predator behavior and reproduction in other insects.