Coral reefs are undergoing substantial change around the world as mass coral bleaching and other disturbance events disrupt ecological communities. Animal behaviour is thought to be a crucial mechanism underlying this disruption, which could shape the potential for species to cope with on-going environmental change, yet our understanding of these links is in its infancy. One particularly interesting aspect of behaviour is personality, whereby individuals display distinct, repeatable suites of behaviours. Certain personalities could provide a selective advantage under environmental change e.g., bold and explorative individuals might have increased potential to exploit novel conditions. This project aims to explore the relationship between personality traits of individual butterflyfishes (Chaetodon spp.), and their influence on population persistence under changing environmental conditions. Butterflyfishes are iconic reef fish that are particularly susceptible to environmental change because they depend directly on corals as food.
Impact of coral reef fish personalities on species persistence under environmental change
I am currently in my first year of a PhD studentship. The PhD is funded through the Envision Doctoral Training Programme (DTP) by NERC. Read on for an outline of the project and visit the envision website to learn more about the amazing opportunities the DTP offers!
My PhD will address the following questions:
How variable is personality amongst individuals, within and across reefs?;
How does this variation relate to habitat complexity?;
Do fish populations on reefs that have undergone recent mass coral mortality have a higher frequency of bold, explorative individuals?; and
How do these differences in personality frequency scale up to impact the potential for species to track changing climate?