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Organized Meeting

Taiwanese Entomologist Association Meeting

Rising ambient temperature declined the energy metabolism and foraging ability of bumble bees

Tuesday, November 7, 2023
7:22 PM – 7:34 PM ET
Location: Gaylord National Resort & Convention Center, Chesapeake B-C
In-Person

    Presenting Author(s)

  • Yun-Heng Lu

    PhD student
    National Taiwan University
    Taipei, Taipei, Taiwan (Republic of China)

    • Co-author(s)

  • YK

    Yun Kuo

    National Taiwan University
    Taipei, Taipei, Taiwan (Republic of China)

  • YL

    Yu-Hsien Lin

    University of Amsterdam
    Amsterdam, Netherlands

  • YL

    Yu-Chun Lin (she/her/hers)

    PhD student
    National Taiwan University
    Taipei, Taipei, Taiwan (Republic of China)

  • YW

    Yueh-lung Wu

    National Taiwan University
    Taipei, Taipei, Taiwan (Republic of China)

Climate change leads to alterations of environments, which might also negatively influence the local pollinators. Bumble bees (Bumbus eximius) mainly reside in temporal regions and mid-high altitudes, making this species vulnerable on increasing temperature due to climate change. Several studies addressed the conservation efforts for bumble bees, but studies focused on physiological impact and foraging performance were limited. Here, we examining the survival and the influences on energy metabolism in bumble bee’s flight muscles in elevating temperatures. Wing-beating frequency, locomotion, and pollen collection were also recorded as the impacts on foraging behaviors. Our results demonstrated that increasing temperature switched the energy metabolism pathway of bumble bees to anaerobic respiration. The ATP level in flight muscles also decreased, and more energy was consumed to produce heat-chock proteins and anti-oxidant species in the whole body. The wing-beating frequencies and locomotion declined, and the weights of pollen collection also decreased in colony level after heat stress. These results suggested that the rising temperature caused detrimental effects on bumble bee’s survival, physiology, and foraging performance, which could potentially decrease crop production.