Study

Le Parc naturel regional Périgord-Limousin: territoire d’expérimentation et d’innovation par la mise en place d’un programme d’éradication de la Grenouille taureau (Lithobates catesbeianus) associé à un programme de recherche sur les maladies émergentes des amphibiens

  • Published source details Guibert S, Dejean T & Hippolyte S (2010) Le Parc naturel regional Périgord-Limousin: territoire d’expérimentation et d’innovation par la mise en place d’un programme d’éradication de la Grenouille taureau (Lithobates catesbeianus) associé à un programme de recherche sur les maladies émergentes des amphibiens. [The Regional Natural Park Périgord-Limousin: territory of experimentation and innovation by the implementation of an eradication program of the bullfrog (Lithobates catesbeianus ) associated with a research program]. EPOPS, 79, 15-24

Actions

This study is summarised as evidence for the following.

Action Category

American bullfrog control: Direct removal of juveniles

Action Link
Control of Freshwater Invasive Species

American bullfrog control: Direct removal of adults

Action Link
Control of Freshwater Invasive Species
  1. American bullfrog control: Direct removal of juveniles

    A before-and-after study from 2006 to 2009 on Natural Park Périgord-Limousin sites in France (Guibert et al. 2010) found a significant reduction in the number of recorded adults and juveniles following the removal of juveniles by trapping, along with other removal methods.  The number of trapped tadpoles decreased from approximately 1,600 in 2006 to fewer than 200 in 2009.  Trapping was carried out as part of a combination treatment which also involved shooting of adults and collection of egg clutches.  Unbaited single and double entry traps were installed equidistant from each other in the water, and were checked daily until the catch rate became negligible compared to the work effort.

  2. American bullfrog control: Direct removal of adults

    One before-and-after study from 2006 to 2009 on Natural Park Périgord-Limousin sites, France (Guibert et al. 2010) reported a significant reduction in the number of recorded adults and juveniles following the shooting of metamorphosed individuals before reproduction, along with trapping of juveniles and collection of egg clutches.  The number of sighted and destroyed bullfrogs decreased from 130-140 in 2006 and 2007, to approximately 80 in 2008, and fewer than 40 in 2009.  It was reported that most of the bullfrogs eradicated by shooting were males due to ease of location relative to the silent females. Shooting with airguns was carried out at night using two person teams. One person was responsible for tracking and identification, and the other was responsible for eradication.

Output references

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