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  Self-funded MSc R- Understanding the consequences of unpredictable cold stress events on a beneficial insect and the implications for natural pest control in agricultural landscapes


   School of Biological Sciences

   Applications accepted all year round  Self-Funded PhD Students Only

About the Project

The earth is currently experiencing rapid changes in climate. As ectotherms, insects are highly susceptible to temperature change, with temperature impacting all aspects of their fitness. During winter months, insects are faced with challenging cold temperatures. To survive these conditions, some insects enter a cold-tolerant diapause state. However, warming winters in temperate regions have led to an increase in the winter activity of many insects during a time when food is scarce, along with other resources such as shelter and nesting sites. Furthermore, as a consequence of climate change, the frequency of unpredictable extreme cold events is increasing. This is placing additional stress on insects, including beneficial insects that perform vital ecosystems services within agricultural landscapes (e.g. biological control and pollination), acting to further undermine already fragile and destabilised agroecosystems.

Parasitoid wasps of the genus Aphidius are beneficial insects in agroecosystems and play an important role in the biological control of aphid pests. However, like many temperate insects, Aphidius wasps are no longer entering into a winter diapause and are instead remaining winter-active. This is rendering parasitoids increasingly susceptible to winter conditions and unpredictable frost events, with implications for the biological control function they perform, particularly during peak spring and summer aphid abundance the succeeding year.

Utilising Aphidius wasps as a study system, the proposed project will investigate how unpredictable cold stress events may impact a beneficial insect and the implications for the vital ecosystem service it provides. Understanding how beneficial insects will be impacted by unpredictable cold events will aid in predicting how beneficial insects will be impacted by climate change and what this means for the beneficial ecosystem services they provide and overall agroecosystem functioning. 

The successful candidate will gain experience in a range of laboratory techniques including measures of thermal physiology and thermotolerance (Critical Thermal Minima, Chill Coma Temperatures, Lethal Temperatures, Lethal Times), microdissection, and insect husbandry across multiple trophic levels.

MSc by Research 

MSc by Research (MSc R) is a 1-year research degree that provides an intensive lab-based training and a preparation for PhD study. You will carry out your studies as part of your research group – like a PhD student does. Towards the end of the year, you write up a thesis on your research and are examined on this. This degree suits students wanting to gain maximum research experience in preparation for PhD applications. 

We are keen to recruit a diverse range of students and to ensure our research is open to all. We particularly welcome applications from groups traditionally under-represented in life sciences research. Please check the University webpages for the current tuition fee information. Most MSc R projects also require a bench fee. This varies depending on the research and your project supervisor can tell you the bench fee for the project. 

How to apply 

Before applying, please read carefully the information on the prospectus Biological Sciences | Study at Bristol | University of Bristol and make sure you have all the documents listed in the Entry Requirements – Admissions Statement and English Language Requirements.  

To apply, follow the link Start your application | Study at Bristol | University of Bristol and select the programme “Biological Sciences (MSc by Research)”.

If you have questions about the project, please contact Dr Lucy Alford at

Dr Lucy Alford - Our People (bristol.ac.uk)

If you require assistance with your application, please email  

Agriculture (1) Biological Sciences (4)

Funding Notes

This MSc R project is available to UK and international students who wish to self-fund their studies or who have access to their own funding.

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