Research
I am incredibly lucky to still have one foot in academia, working within the Terrestrial Ecosystem Science and Sustainability (TESS) Laboratory at the University of Exeter. Being able to continue my research contributions alongside my work within industry is a privilege!
I am currently working on a number of projects, including:
- Monitoring the distribution and spread of the alien invasive plant species Prosopis in SW Botswana (Slade, et al., in prep)
- Estimating Canopy Height in Tropical Forests: Integrating Airborne LiDAR and Multi-Spectral Optical Data with Machine Learning (Pickstone, et al., 2025)
- Repeated drone photogrammetry surveys demonstrate that reconstructed canopy heights are sensitive to wind speed but relatively insensitive to illumination conditions (Slade, et al., 2024)
- Assessing the accuracy of GEDI for mapping resilience in the Amazon rainforest along a gradient of disturbance to recovery (Doyle, et al., 2025)
- Investigating the links between forest canopy structure and soil organic carbon (Thomas, et al., in prep)
- Exploring the application of synthetic controls for ex-post forest monitoring in conservation areas (Lomax, et al., in prep)
For a full list of my publications check out my Google Scholar page
References
Brazier, Richard E., M. E. Elliott, E Andison, R. E. Auster, S Bridgewater, P Burgess, J Chant, et al. 2020. “River Otter Beaver Trial: Science and Evidence Report. River Otter Beaver Trial, Devon.” https://www.exeter.ac.uk/creww/research/beavertrial/.
Brazier, Richard E., Alan Puttock, Hugh A. Graham, Roger E. Auster, Kye H. Davies, and Chryssa M. L. Brown. 2020. “Beaver: Nature’s Ecosystem Engineers.” WIREs Water. https://doi.org/https://doi.org/10.1002/wat2.1494.
Campbell-Palmer, R., A. K. Puttock, H. A. Graham, K Wilson, G. Schwab, M. J. Gaywood, and R. E. Brazier. 2018. “Survey of the Tayside Area Beaver Population 2017-2018.” https://www.nature.scot/naturescot-research-report-1013-survey-tayside-area-beaver-population-2017-2018.
Campbell‐Palmer, Róisín, Alan Puttock, Kelsey A. Wilson, Alicia Leow‐Dyke, Hugh A. Graham, Martin J. Gaywood, and Richard E. Brazier. 2020. “Using Field Sign Surveys to Estimate Spatial Distribution and Territory Dynamics Following Reintroduction of the Eurasian Beaver to British River Catchments.” River Research and Applications. https://doi.org/https://doi.org/10.1002/rra.3755.
Cunliffe, A, K Anderson, F Boschetti, R Brazier, H Graham, I Myers-Smith, T Astor, et al. 2021. “Global Application of an Unoccupied Aerial Vehicle Photogrammetry Protocol for Predicting Aboveground Biomass in Non-Forest Ecosystems.” Remote Sensing in Ecology and Conservation.
Doyle, Emily L, Hugh A Graham, Chris A Boulton, Timothy M Lenton, Ted R Feldpausch, and Andrew M Cunliffe. 2025. “Evaluating GEDI for Quantifying Forest Structure Across a Gradient of Degradation in Amazonian Rainforests.” Environmental Research Letters 20 (5): 054016. https://doi.org/10.1088/1748-9326/adc752.
Graham, Hugh. 2023. “Quantifying the Impact and Expansion of Eurasian Beaver in Great Britain.” Ph.{D}., University of Exeter. http://hdl.handle.net/10871/132143.
Graham, Hugh A., Alan K. Puttock, Mark Elliott, Karen Anderson, and Richard E. Brazier. 2022. “Exploring the Dynamics of Flow Attenuation at a Beaver Dam Sequence.” Hydrological Processes 36 (11): e14735. https://doi.org/10.1002/hyp.14735.
Graham, Hugh A., Alan Puttock, Jake Chant, Mark Elliott, Roisin Campbell-Palmer, Karen Anderson, and Richard E. Brazier. 2022. “Monitoring, Modelling and Managing Beaver (Castor Fiber) Populations in the River Otter Catchment, Great Britain.” Ecological Solutions and Evidence 3 (3): e12168. https://doi.org/10.1002/2688-8319.12168.
Graham, Hugh A., Alan Puttock, William W. Macfarlane, Joseph M. Wheaton, Jordan T. Gilbert, Róisín Campbell-Palmer, Mark Elliott, Martin J. Gaywood, Karen Anderson, and Richard E. Brazier. 2020. “Modelling Eurasian Beaver Foraging Habitat and Dam Suitability, for Predicting the Location and Number of Dams Throughout Catchments in Great Britain.” European Journal of Wildlife Research 66 (3): 42. https://doi.org/10.1007/s10344-020-01379-w.
Pickstone, Brianna J., Hugh A. Graham, and Andrew M. Cunliffe. 2025. “Estimating Canopy Height in Tropical Forests: Integrating Airborne LiDAR and Multi-Spectral Optical Data with Machine Learning.” Sustainable Environment 11 (1): 2469406. https://doi.org/10.1080/27658511.2025.2469406.
Puttock, Alan, Hugh A. Graham, Josie Ashe, David J. Luscombe, and Richard E. Brazier. 2021. “Beaver Dams Attenuate Flow: A Multi-Site Study.” Hydrological Processes 35 (2): e14017. https://doi.org/https://doi.org/10.1002/hyp.14017.
Puttock, Alan, Hugh A. Graham, Donna Carless, and Richard E. Brazier. 2018. “Sediment and Nutrient Storage in a Beaver Engineered Wetland.” Earth Surface Processes and Landforms 43 (11): 2358–70. https://doi.org/10.1002/esp.4398.
Puttock, Alan, Hugh A. Graham, Andrew M. Cunliffe, Mark Elliott, and Richard E. Brazier. 2017. “Eurasian Beaver Activity Increases Water Storage, Attenuates Flow and Mitigates Diffuse Pollution from Intensively-Managed Grasslands.” Science of The Total Environment 576 (January): 430–43. https://doi.org/10.1016/j.scitotenv.2016.10.122.
Puttock, Alan, Mervyn Newman, Hugh Graham, Mark Elliott, Jake Chant, Roger Auster, and Richard Brazier. 2023. “Positive Coexistence of Water Voles and Beaver: Water Vole Expansion in a Beaver Engineered Wetland.” Mammal Communications. https://doi.org/10.59922/GONL2514.
Slade, Glenn, Karen Anderson, Hugh A. Graham, and Andrew M. Cunliffe. 2024. “Repeated Drone Photogrammetry Surveys Demonstrate That Reconstructed Canopy Heights Are Sensitive to Wind Speed but Relatively Insensitive to Illumination Conditions.” International Journal of Remote Sensing 0 (0): 1–18. https://doi.org/10.1080/01431161.2024.2377832.