According to data from the CiTIQUE programme, more than a quarter of tick bites occur in private gardens. However, little is known about the factors that influence the presence of ticks in these places, or whether this poses a risk to human health, given that ticks can transmit pathogens such as those responsible for Lyme disease. The TIQUoJARDIN project, led by INRAE, ANSES, the ARBRE Laboratory of Excellence, the University of Lorraine and the Permanent centre for initiatives on the environment (CPIE) in Nancy-Champenoux, aims to answer these questions.
A participatory project in and around Nancy
In order to collect the maximum amount of data and ticks from private gardens, TIQUoJARDIN relies on the general public's participation. From 1 May to 10 July 2022, local volunteers are therefore invited to hunt for ticks in their gardens. Equipped with a sampling kit provided by the project managers, they will follow a defined, easy-to-implement protocol to collect any ticks they find and send them to the scientific team. They will also be asked to answer a detailed questionnaire about the characteristics of their garden.
Conditions for participation
- Live within a 30 kilometre radius of Nancy, to ensure relatively uniform weather conditions in the study area
- Have a garden of at least 100 m2
- Register online on the project website (Fr)
The sampling kits can then be collected by appointment from one of the four pick-up points located in Champigneulles, the INRAE centre in Champenoux, ANSES in Malzéville and the Jean-Marie Pelt botanical gardens in Villers-lès-Nancy. For more details, visit the project website.
A target of 150 gardens in 2022
This is the second year of the tick collection campaign. "Last year, we covered 73 gardens," explained Laure Bournez, from the ANSES Laboratory for Rabies and Wildlife in Nancy. "For this year, we have set ourselves a target of 150 gardens. The bigger the number of participants, the more data we will have to determine the environmental factors that influence the presence of ticks in gardens."
In the first campaign, ticks were found in 40% of the gardens surveyed, with an average of four ticks per garden. The species Ixodes ricinus was the most common (246 out of 254 ticks collected), but three other tick species were also collected. The second year of collection will allow us to refine these initial results and determine the characteristics of the gardens most likely to harbour ticks.
The CiTIQUE programme
TIQUoJARDIN is part of the CiTIQUE participatory research programme. One objective of this programme, which began in 2017, is to collect data on the geographical distribution in France of tick bites and the pathogens they carry, depending on the environment, weather and seasons. This data collection relies on citizen participation.
Since the beginning of the project, more than 72,000 tick bites (on humans and animals) throughout France have been reported via the Signalement TIQUE app, more than 50,000 biting ticks have been sent in by members of the public and archived in the "tick library" of the Tous Chercheurs platform in Champenoux, and more than 2,000 ticks have been analysed to identify the pathogens they carry.
This programme won the 2021 edition of the participatory research award, presented by the Ministry of Higher Education, Research and Innovation.