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Ayman Asiri

Mr Ayman Asiri

Graduate Demonstrator

School of Biosciences

Overview

My interests lie in all things entomology, but I'm particularly interested in how insects respond to and are impacted by disease. 

I graduated from the University of Plymouth with BSc (Hons) Biological Sciences in 2020. During which I undertook a placement year where I worked as a curatorial assistant in an entomology laboratory, and lived in the Appenine mountains of Italy working on a bear conservation project. After graduating from my undergraduate I went on to do an MSc by Research in Entomology at Reading University.

My current research focuses on disease in honeybees, but during my degrees I had the opportunity to work on research projects involving a wide range of invertebrates, including isopod immunity, ladybird disease and colour forms, and spider biodiversity. 

Research

Research interests

  • Insect disease and parasitism 
  • Arthropod ecology
  • Insect behaviour
  • Invertebrate immunity
  • Insect husbandry

Current research

NERC GW4+: The smell of infection – detecting infectious disease and determining mechanisms underlying the spread of disease in social networks. 

Ayman Asiri, Dr S Perkins, Dr C Muller

Social animals have evolved behavioural mechanisms to mitigate the risks of infection. One such mechanism could be based on changes in 'smell' between infected and uninfected individuals. Both non-infectious and infectious diseases are known to change volatile organic compound (VOC) profiles in livestock, wildlife, and humans. In insects, VOCs serve as the chemical language of communication. However, parasites may also have evolved to exploit and/or manipulate host behaviour to improve transmission. As such, smell may be a mechanism underlying the transmission of disease in social insect systems.

Apiculture worldwide is under threat by the emergence and persistence of infectious diseases such as European and American foulbrood, Nosemosis, and Varroa mite, with effects ranging from reduction in honey production to full colony collapse. Honey bees main disease resistance mechanism is social immunity – the collective defence against parasites and pathogens within the hive. Disease avoidance behaviours, such as modulation of social networks and social segregation, alongside their pheromonal communication have been widely researched. This make honey bees an excellent model system to investigate the effects of pathogen load and 'smell' as a mechanism that alters how epidemics progress in social networks. 

We are using detailed behavioural observations paired with VOC analysis to determine if odour of infection is a mechanism driving infectious disease dynamics. Furthermore, VOC monitoring is an emerging non-invasive method of managed insect disease surviellance. The findings of this research will elucidate key mechanisms in disease transmission and deliver a novel approach to monitoring infections in apiculture and potentially infections in general.