- Agency
- University of Fribourg (Switzerland)
- Location
- Switzerland
- Job Category
- Faculty Appointments
- Website
- https://entojobs.tamu.edu/wp-content/uploads/sites/79/2019/01/PhD-position_Effects-of-pathogen-pressure-on-personal-and-social-immune-investment-in-ants-1.pdf
- Description
- A 4-year PhD position is available in the research group of Professor Nathalie Stroeymeyt in the Department of Biology, University of Fribourg, to study the effect of prolonged pathogen pressure on long-term investment in personal and social immunity in ants. Background Group living offers favourable conditions for the spread of infectious diseases, because high population densities and frequent social contacts facilitate pathogen transmission. To mitigate that risk, social animals have evolved a variety of defence mechanisms to prevent the entry and propagation of pathogens within the group, ranging from a raised investment in personal immunity to highly coordinated collective sanitary actions (‘social immunity’). Recent studies have shown that social groups can also adopt organizational features, such as the subdivision into well-separated subgroups, which reduce epidemic risk through transmission bottleneck effects. However, the importance of organizational immunity features in disease risk management by real animal groups is still poorly understood. Our research adopts an empirical approach based on the experimental manipulations of garden ant colonies (Lasius niger) to (i) quantify the effect of social organization on disease transmission and test key predictions from network epidemiology, and (ii) evaluate the relative of importance of personal immunity, collective sanitary actions and organizational features under different environmental conditions and at different stages of development (for more detail see https://stroeymeyt-lab.ch/research). The project The goal of this project will be to understand how ant colonies adjust different components of their disease defences (personal immunity, collective sanitary actions and transmission- inhibiting social organization) in response to repeated disease challenges. The candidate will use controlled pathogen inoculations, physiological assays and immune gene expression analysis, automated behavioural tracking, social network analysis and monitoring of the transmission of real agents to uncover the effect of prolonged pathogen pressure on long-term investment in personal and social immunity. The project will elucidate whether ants use changes in spatial and social organisation as an active strategy to decrease disease risk. The position will be part of an overall project team consisting of two PhD students and two post-doctoral researchers (https://stroeymeyt-lab.ch/open-positions/) and will be fully funded for four years by an ERC Starting Grant. The salary will be set according to the guidelines of the University of Fribourg (c. 47’000 CHF per year).
- Qualifications
- We are looking for candidates with experience in quantitative behavioural analysis and programming and/or molecular biology techniques, and a willingness to apply a variety of approaches (behavioural tracking, writing own code to analyse the data, and lab work). A good working knowledge in statistics and experimental design is also desirable. Experience with social insects and insect immunity would be a plus. Candidates must be creative, motivated and passionate about science, have excellent oral and written communication skills, and be at ease working both independently and as part of a team. A Master’s degree (or equivalent) will be required prior to taking up the position.
- Job Number
- 80
- Contact Person
- Nathalie Stroeymeyt
- Contact eMail
- Nathalie.Stroeymeyt@gmail.com