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ViewAttendees 2

10-Minute Paper

Plant-Insect Ecosystems

P-IE: Biological Control 2

Parasitoid ecology along geographic gradients: Lessons for climate change studies

Wednesday, November 8, 2023
9:24 AM – 9:36 AM ET
Location: Gaylord National Resort & Convention Center, Maryland D
In-Person

    Presenting Author(s)

  • Joan van Baaren (she/her/hers)

    Professor
    Universite de Rennes 1
    Rennes, Bretagne, France

    • Co-Author(s)

  • LJ

    Lena Jego

    PhD
    University of Rennes
    Rennes, Bretagne, France

  • RL

    Ruining Li

    University of Rennes
    Rennes, Bretagne, France

  • SR

    Sacha Roudine

    PhD
    University of Rennes
    Rennes, Bretagne, France

  • CM

    Chun-Sen Ma

    Professor
    Chinese Academy of Agricultural Science
    Beijing, Beijing, China (People's Republic)

  • CL

    Cécile Le Lann

    PhD
    University of Rennes
    Rennes, Bretagne, France

  • GM

    Gang Ma

    researcher
    Chinese Academy of Agricultural Science
    Beijing, Beijing, China (People's Republic)

One method to study the impact of climate change on host-parasitoid relationships is to compare populations along geographical gradients in latitude, altitude or longitude. Indeed, temperatures, which vary along geographic gradients directly shape the life traits of parasitoids and indirectly shift their populations through trophic interactions with hosts and plants. We explored the pros and cons of using these comparisons along gradients. We highlighted that the longitudinal gradients, although understudied, are well correlated to winter warming and summer heat waves and we draw attention to the impact of the increase in extreme events, which will probably be the determining parameters of the effect of climate change on host-parasitoid relationships.