Project background
Scientific Background
This project will investigate how evolutionary history shapes variation in the leaf economics spectrum (LES), a central framework in plant ecology describing trade-offs between resource acquisition and conservation strategies.
The successful REP student will work within a unique experimental system at Beth Chatto Gardens (Elmstead Market, UK), which houses thousands of plant species arranged according to ecological principles. From this diverse system, the project will focus on a subset of 200+ phylogenetically diverse species, providing an opportunity to explore how key functional traits such as photosynthetic capacity, respiration, and leaf structural properties vary within and across species in a semi-natural, curated environment.
Research Methodology
The primary aim is to characterise intra-specific variation in LES traits and determine the extent to which this variation is structured by phylogenetic relationships. The student will gain hands-on experience with advanced plant physiological and analytical techniques, including infra-red gas exchange to quantify photosynthesis and respiration, and spectral reflectance measurements to estimate leaf chemical composition. Additional work will include measurement of structural traits such as specific leaf area, alongside molecular approaches including DNA extraction and preparation for sequencing.
A key strength of this placement is the opportunity to work with specialist research equipment and facilities not typically accessible at undergraduate level. The University of Essex hosts advanced plant physiology platforms, enabling detailed measurement of plant function using approaches central to modern plant ecophysiology.
The student will also engage directly with the lead horticulturist and plant ecologists associated with Beth Chatto Gardens, gaining insight into how ecological theory informs planting design and management. In addition, the student will contribute to the design of a public-facing exhibition at the biannual Beth Chatto Symposium, an international event attended by researchers and practitioners. This exhibition will introduce delegates to ecological strategy theory.
This placement provides a highly interdisciplinary experience, combining plant physiology, evolutionary ecology, and public engagement. The student will gain technical expertise, research experience, and skills in communicating science to a broad audience.
