Laurence Berville, PhD
  • Home
  • Research
  • Experiences
    • Teaching
  • OUTREACH
    • Publications
    • Talks
    • Posters
    • Professionnal reports and consultancies
    • Documentary & Exhibition
    • Media
  • COLLABORATORS
  • Photos
  • CV
  • Contacts
Discover the challenges and questions that inspire my research and the ecosystems and landscapes I work in.

 Welcome / Bienvenue

NWE-IUSSI winter meeting 2020

11/1/2021

 

Ignacio Ruiz-Cristi, Laurence Berville & Eric Darrouzet

Pinpointing the best thermic system to instantaneously immobilize the invasive Asian hornet Vespa velutina nigrithorax


The Asian yellow-legged hornet, Vespa velutina nigrithorax(Hymenoptera: Vespidae, Lepeletier 1836) is an Indo-China species, which has been unintentionally introduced in France and is spreading in many areas of the world. This species, which is considered as Union concern in Europe, presented a major impact on beekeeping activities, mostly by preying honey bees (Apis mellifera) at the beehive entrances. Currently, none of the control methods developed are simultaneously biofriendly and efficient. With the ambition in providing an eco-selective approach to destroy V. velutinanests, Apis cerana behavior was taken as an example. Indeed, in their native area, A. cerana presents an effective collective defense mechanism against hornet’s attacks: the “heat ball”. In this study, diverse temperatures and thermal systems were tested, in a laboratory, against Vespa velutinaindividuals according to their sex, castes and developmental stages. The thermal resilience of all individuals decreased significantly with the increase in temperatures. Comparatively, hornets died faster went faced with a gradual rise in temperaturesthan when directly exposed to a set temperature; larvae seem to be the most resistants. Steam water seems to be the most suitable and promising technique to quickly eradicate hornets as they all succumbed before 13 seconds, and therefore could be a good candidate for a green nest control method.

Poster presentations –
DOI : 10.13140/RG.2.2.23689.47205
Picture

2021

1/1/2021

 
Picture

Happy new year!


May your workplace be like a home to you, where you feel comfortable and confident ! Wishing you lots of amazing goals, dreams and achievements for the new year!


Meilleurs Vœux


Je vous souhaite une bonne et heureuse année 2021 pour vous, votre famille et vos collègues. Que celle-ci soit synonyme de réussite personnelle et professionnelle dans vos projets.

Picture
Picture
    Institut de Recherche sur la Biologie de l'Insecte (IRBI). UMR 7261 - CNRS / Université de Tours. Tours, France

    Archives

    February 2023
    January 2023
    December 2022
    October 2022
    September 2022
    August 2022
    July 2022
    April 2022
    January 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    June 2020
    April 2020
    March 2020
    November 2019
    July 2019
    May 2019
    April 2019
    March 2019
    January 2018
    September 2017
    May 2017
    March 2017
    January 2017
    August 2016
    June 2016
    August 2012
    May 2012

    RSS Feed

Powered by Create your own unique website with customizable templates.
  • Home
  • Research
  • Experiences
    • Teaching
  • OUTREACH
    • Publications
    • Talks
    • Posters
    • Professionnal reports and consultancies
    • Documentary & Exhibition
    • Media
  • COLLABORATORS
  • Photos
  • CV
  • Contacts