Social animals are at greater risk of contracting infectious diseases than those that live alone. But why do so many animal species form groups if this is so costly for individual health? One intriguing possibility is that social animals can share components of their immune system with their group mates as a means of bolstering group defences against parasites. As part of an exciting new project designed to test this idea for the first time in wild birds, we are looking for an enthusiastic and adventurous PhD student to join our team and perform research on social immunity in wild-living African birds.As PhD candidate, you will work in a team focussing on immunity-sharing traits in birds. Your primary focus will be on immune sharing between family and group members during breeding. Our study species, the speckled mousebird has a highly complex social life, and it is your task to contribute to understanding how parasite exposure influences its evolution. You’ll find out what immune components are shared between members of breeding groups and test whether mousebirds adjust immune-sharing strategies according to the identity and infection status of their group members, as well as the environmental conditions at the time of breeding. The project involves field- and lab work, video-analyses and data analyses.
Data collection in the field for this project involves performing fieldwork under challenging field conditions, with stays of 3+ months at a field research centre in Mbuluzi Game Reserve, Eswatini, between October and January each year. Candidates must be able to commit to doing fieldwork in this period to be eligible for the position.
Your duties and responsibilities include: -
Fieldwork: perform nest searches, monitor reproductive attempts, record reproductive and social behaviours at the nest using video cameras, collect biological samples from eggs and nestlings. Fieldwork is conducted as part of a team involving Masters students and fieldwork assistants from the universities of Wageningen, Eswatini and Pretoria. As PhD student, you will (after appropriate training and experience) lead the field team and assist in the supervision of Masters students;
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Lab work: perform immune assays on egg and faecal samples;
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Extract data on social group composition and immune sharing behaviours from video recordings of mousebird nests;
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Analyse and pool data and findings to test hypotheses about how immune sharing relates to sociality, group composition and environmental conditions;
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Publish research findings in peer-reviewed journals and present them at national and international conferences.
You will work hereThe research is embedded within the chair
Wildlife Ecology and Conservation, which is led by
Prof. Frank van Langevelde. You will work within the research team of Dr. Kat Bebbington, who will also provide the daily supervision. This project forms part of the Social Savanna Project, a collaborative long-term study into the ecology, physiology and behaviour of a community of savanna-breeding birds in Mbuluzi Game Reserve, Eswatini (see below). You will be co-supervised by Dr. Kevin Matson (Wildlife Ecology and Conservation group, WUR) and Dr. Sjouke A. Kingma (Behavioural Ecology group, WUR).
About the Social Savanna ProjectThe Social Savanna Project was established in 2019 by Dr. Bebbington and Dr. Kingma as a broadscale ornithological project, with the overall aim of filling the substantial knowledge gap regarding the reproduction, ecology and behaviour of savanna birds in southern Africa. In close collaboration with
Prof. Ara Monadjem at the University of Pretoria and
Zamekile Bhembe at the University of Eswatini, we run various research projects – some species-specific, some at the community level – aimed at understanding the social and environmental factors that shape behaviour, physiology and fitness of wild birds. At the heart of the project is a commitment to facilitating knowledge transfer between academics and students of different backgrounds in order to conduct excellent science. You can read all about the Social Savanna Project here:
www.socialsavannaproject.com.