
Oxford
Ecosystems

ECOSYSTEMS STAFF
Academic and Research Staff

Professor Yadvinder Malhi CBE FRS
Lead, Ecosystems Programme, ECI
Professor of Ecosystem Science, SoGE
Jackson Senior Research Fellow, Oriel College
The broad scope of Yadvinder’s research interests is the impact of global change processes such as atmospheric change and direct human modification on the ecology, structure and composition of terrestrial ecosystems, and in particular temperate and tropical forests. This research addresses fundamental questions about ecosystem function, diversity and dynamics, whilst at the same time providing outputs of direct relevance for conservation and adaptation to climate change. His group applies a range of techniques including field physiological studies, intensive and long-term ecological monitoring, quantitative and qualitative social science methodologies, satellite remote-sensing and GIS, ecosystem modelling, and micrometeorological techniques. He coordinates an extensive and expanding research programme in Asia, Africa and particularly across the Amazon and Andes region. He also runs an active research programme at Oxford University’s Wytham Woods research site. He was co-founder of the Amazon Forest Inventory Network (RAINFOR) which has resulted in over 50 publications. In recent years he has developed an international research network (GEM: gem.tropicalforests.ox.ac.uk) collecting data on ecosystem function in a number of research sites across the tropics.

Professor Nicola Stevens
Professor in Physical Geography (Biodiversity and Climate Change), SoGE
Biodiversity Cluster Coordinator, SoGE
Nikki’s research interests are centred around understanding vegetation dynamics in African savannas and how they are likely to change given increasing global change pressures like altered fire and herbivory regimes against a backdrop of changing CO2 concentrations. Along this vein I have become particularly interested in the phenomenon of woody encroachment where open ecosystems across the tropics are being invaded by native woody species. It has also driven me to improve our ability to predict future species ranges under global change by improving our mechanistic understanding of range edges in disturbance limited systems. She has ongoing projects in Southern Africa with the hopes to expand this research to other tropical savannas.

Dr Jesús Aguirre Gutiérrez
Associate Professor, SoGE
Lead, Functional Biodiversity & Remote Sensing Lab, ECI
Jesus leads the Functional Biodiversity & Remote Sensing Lab within the Ecosystems Programme in the Environmental Change Institute. The goal of his research is to disentangle how a changing climate has impacted, is currently driving and will modify in the near future our natural forest ecosystems. Much is still unknown about how tropical forests around the world are responding to an increasingly fast changing climate, and there may be regions that are or will experience stronger biodiversity shifts and may be in more need of protection or regulation. Having grown-up in Guadalajara, one of the biggest cities in Mexico where not much nature is around, Jesus decided to spend a year living with the indigenous "Raramuri" community in Northern Mexico to learn from their vision of nature. His research interests come from understanding the importance nature has on our livelihoods - something he learnt through his experiences with indigenous communities in Mexico and abroad. He was previously and NERC Independent Research Fellow at the School of Geography and the Environment and the Environmental Change Institute, and has recently been promoted to Associate Professor. In his work he tries to understand the role that plant functional characteristics play in the resilience of tropical forests and make use of field assessment and also lots of remote sensing data from drones and satellites. Currently he is working across several countries including Mexico, Brazil, Peru, Ghana, Gabon, Malaysia and Australia.

Dr Erika Berenguer
Senior Research Associate, ECI, Oxford and University of Lancaster
Erika Berenguer is a Senior Research Associate at both the University of Oxford and the Lancaster University. She works in the DIEBACK project, looking at the impacts of logging and understorey fires in ecosystem functions performed by Amazonian forests. Her interests lie in developing a better understanding of different ecosystem functions performed by human-modified tropical forests and in assessing the resilience of these forests in the face of climate change. In addition, she is passionate about finding ways of effectively communicating scientific results to relevant stakeholders and policy-makers.

Dr Diogo Veríssimo
Senior Research Associate, ECI, Oxford and University of Lancaster
Diogo's research focuses on the intersection of behavioral science, social marketing, and biodiversity conservation, exploring how human decision-making influences environmental outcomes. His work examines the psychological, social, and economic drivers of behaviors related to wildlife trade, natural resource use, and conservation policy compliance. He is particularly interested in the design and evaluation of behavior change interventions, applying approaches such as social marketing, nudging, and community engagement to promote sustainable behaviors. Diogo also has a strong interest in understanding the impact of different media formats on pro-environmental behavior. He has worked extensively on assessing the influence of digital games, nature documentaries, and photography in shaping conservation attitudes and actions. His research integrates innovative methodologies, including AI-driven media monitoring, culturomics, and impact evaluation techniques such as process tracing and synthetic controls. Through interdisciplinary collaboration, he aims to bridge the gap between conservation science and practice, ensuring that interventions are both evidence-based and scalable for real-world application. Beyond his professional work, Diogo enjoys traveling and learning about different cultures, particularly in regions where he has conducted conservation research. He has a keen interest in history, particularly how human societies have interacted with wildlife over time. When not working, he enjoys spending time outdoors with his family, exploring new hiking trails, and introducing his son to the natural world.

Dr Cecilia Dahlsjö
Senior Researcher, ECI, Oxford
Cecilia is a Senior Researcher with a passion for ecosystem functioning and a particular fondness for things that crawl and creep. She manages and coordinates the ecological work for the Leverhulme Centre for Nature Recovery (LCNR) around Oxfordshire where she is developing a gradient of grazing intensity for studies on the effectiveness of regenerative farming. Cecilia is involved with research coordination across the Wytham Green Estate where she in the process of establishing a network of baseline data that can be utilised by a wide range of research projects. She also runs a NERC funded project on the ecological and multitrophic impact of ash dieback in Wytham Woods as well as a master’s elective on Nature Recovery that aims to introduce students to the complexities of nature recovery and the ongoing work at the LCNR.

Dr Imma Oliveras
Senior Researcher, ECI
Research Director disturbance ecology, AMAP-IRD
Imma is an ecosystem ecologist that explores the vulnerability and resilience of ecosystems to global change. She is interested on how changes in the abiotic conditions – and particularly extreme drought events and modified fire regimes – affect plant form and function, and how this aggregates to diversity and ecosystem functioning. She is particularly passionate about mountainous and tropical environments. Imma is Research Director in disturbance ecology at AMAP-IRD, Senior Researcher at the Environmental Change Institute (ECI), University of Oxford, and Visiting Associate Professor at the Universidade do Estado de Mato Grosso (Brazil). She leads a research group in disturbance ecology and global change. She loves learning languages and learning from new cultures. She loves spending time outdoors, especially running, hiking and mountaineering, and when being outdoors is not an option. She practises yoga and mindfulness meditation and loves dancing, cooking and photography.

Dr Sruthi Krishna Moorthy Parvathi
Junior Research Fellow, Pembroke College
Sruthi's broad research interest is around understanding how climate change affects forest structure and function. Her primary focus has been on investigating the impact of lianas loads (climbing plants) on tree structures, particularly how they influence carbon storage estimates. Her work aims to unravel the intricate ways in which these climbing plants interact with their host trees and subsequently affect the broader forest ecosystem. Currently, as a Junior Research Fellow, her main objective is to map the global distribution of lianas. This map will serve as a critical tool in my research, enabling me to analyze the patterns and drivers behind the distribution of these climbing plants on a global scale. She hopes to contribute valuable insights into the field of forest ecology, specifically in understanding how these unique plant species adapt and thrive in changing climatic conditions, and their role in the global carbon cycle.

Alison Smith
Senior Research Associate, Leverhulme Centre for Nature Recovery
Alison is a Senior Research Associate with the Leverhulme Centre for Nature Recovery and the Nature-based Solutions Initiative. She works closely with a range of non-academic partners to develop and apply practical methods of mapping and modelling opportunities for nature recovery and nature-based solutions, and assessing the outcomes for people, climate and biodiversity. Her main interest is in the synergies and trade-offs between different approaches to tackling societal challenges, especially the potential for nature-based solutions and green infrastructure to deliver multiple benefits for climate adaptation, mitigation, biodiversity and human well-being.

Dr Manoela Machado
Postdoctoral Research Fellow, Ecosystems Lab, ECI
Manu is a postdoctoral researcher whose research interests revolve around investigating how anthropogenic pressures and their interactions with climate can alter fire regimes in tropical forests. She does so through studying both fine-scale flammability metrics and broad-scale drivers and patterns via spatial modelling. Currently, Manu is investigating the apparent atypical fire season of 2019 in the Amazon and unpicking the relative contribution of the main drivers. Her John Fell/GCRF project seeks to inform policies and prevent other severe fire seasons in the Amazon.

Dr Huanyuan Zhang-Zheng
Postdoctoral Research Fellow, Ecosystems Lab, ECI
Huanyuan is a Postdoctoral researcher with a profound interest in African forest ecology, carbon cycle modelling, and plant functional traits. Affiliated with both the University of Oxford and UC Berkeley, he is responsible for building the Global Ecosystem Monitoring (GEM) Forests carbon cycle database. Dr. Zhang-Zheng's primary research endeavours encompass the compilation of the GEM forests carbon cycle database, data-model comparisons of forests' gross primary productivity, and meta-analyses of forest productivity across a multitude of tropical sites. He is also the sole author of CRAN R package 'ARTofR' (https://cran.r-project.org/web/packages/ARTofR/index.html). Dr. Zhang-Zheng earned a BSc in Environmental Science from Sun Yat-sen University in China, and the University of Birmingham. He also holds an MRes in Ecosystem and Environmental Change (Distinction) from Imperial College London. In 2023, he was awarded DPhil in Geography and the Environment from the University of Oxford with a thesis entitled "Gross primary production of West African tropical forests". He has been the recipient of the Environmental Change Institute small grants from the University of Oxford, the Tang scholarships awarded by the China Oxford Scholarship Fund, and the Henfrey scholarship on Chinese studies from St Catherine’s College, Oxford. Additionally, his research was funded by Xishuangbanna Tropical Botanical Garden Open Funding, and African-Oxford Catalyst Grant, awarded by African-Oxford Initiative. Born on a tropical island (Nan'ao Island, China) and passionate about tropical ecosystems, he has travelled to and conducted research in Mexico, Colombia, Ghana, Malaysia and Yunan, China. He is also a PADI qualified Free Diver and Dive Master.

Dr Eleanor Thomson
Postdoctoral Research Fellow, Ecosystems Lab, ECI
Eleanor is a postdoctoral researcher in the Oxford Ecosystems and Oxford Seascape labs. Her background is in ecological remote sensing with a focus on tropical forest ecosystems. She is currently working on a Bertarelli Marine Science Project that seeks to quantify the importance of seabird-derived nutrients on tropical island ecosystems. This is a joint project between Oxford, Exeter and Lancaster University The project works with local partner organisations across the Chagos Archipelago, Seychelles and French Polynesia to support tropical island conservation and restoration in these regions. She is also a Senior Researcher at Gentian Ltd. Outside of work, you can see her cycling around Oxfordshire, flying her drone up at Wytham woods, or swimming in the river.

Dr Felipe Martello
Postdoctoral Researcher, Leverhulme Centre for Nature Recovery, ECI
Felipe is a community and spatial ecologist focusing on how spatial structure influences biodiversity and related ecological processes. In his research, he studies the effects of anthropogenic landscape structures on different facets of biodiversity, including taxonomic diversity, functional diversity and beta diversity. Currently, he also seeks to use the multidimensionality of biodiversity to gain insights into natural capital biological assets, both in pristine and recovering natural areas. Felipe has also developed computational spatial modelling tools for nature recovery, including the simulation of ecological corridors and the identification of priority areas for restoration and conservation. He is currently an ecological remote sensing postdoctoral researcher at the University of Oxford, funded by Leverhulme Centre for Nature Recovery, where he is working on the use of Earth Observation data to map aspects of ecosystem functionality and resilience, and to assess the temporal dynamics of land use and land cover change in areas dedicated to nature recovery.

Dr Ella Browning
Postdoctoral Researcher, Leverhulme Centre for Nature Recovery, ECI
As an interdisciplinary ecologist with a core background in zoology and conservation, Ella works on providing evidence for effective biodiversity restoration measures. Introduced to the fascinating hidden world of bats during her undergraduate Zoology degree, she was hooked, and has been studying bats ever since using them to understand impacts of anthropogenic environmental change on biodiversity. Bats’ use of echolocation led Ella to a deeper exploration of the use of passive acoustic monitoring techniques for gathering vital ecological data, and she co-wrote the first guidelines for conservation practitioners on using passive acoustics. Ella continues to work on developing and improving tools for collecting passive acoustic data and extracting ecologically information from audio using machine learning methods. Ella is more widely interested in combining conservation technologies, Internet of Things systems, and AI tools for enabling automation, to improve the efficiency of biodiversity data collection and assessment of biodiversity recovery measures.

Dr Laurence Cannings
Postdoctoral Researcher, Leverhulme Centre for Nature Recovery, ECI
Laurence is a postdoctoral researcher focusing on nature, human health and wellbeing, funded by the Leverhulme Centre for Nature Recovery and the Flourishing and Wellbeing Theme of the Oxford Health Biomedical Research Centre. He completed his PhD in Geography from the University of Southampton. This work explored the relationship between environmental conditions, including landscape characteristics and climate risks, upon different dimensions of both objective and subjective wellbeing – with a particular focus on the Volta Delta in Ghana. Laurence is a social scientist, with experience in using both qualitative and quantitative methods to detect human-environment relationships. He also undertook a consultancy role at the UN Food & Agriculture organisation (Regional Office for Asia Pacific) where he worked on incorporating broader dimensions of wellbeing within the nature-based solutions programme.

Dr Megha Ojha
Postdoctoral Researcher, Leverhulme Centre for Nature Recovery, ECI
Megha is a postdoctoral researcher at the Leverhulme Centre for Nature Recovery, where she is working on the development of a biodiversity intactness index for tropical savannas. Her research focuses on understanding the ecological health of savannas, particularly in relation to herbivory intensity and various management interventions. Megha explores a wide range of ecological factors, including taxonomic and functional diversity, as well as energy flows within these complex ecosystems. She completed her PhD in India, where her thesis investigated the impact of plant invasions on Asian tropical savannas. This work contributed novel insights into the shifts in functional composition of these understudied systems, advancing our understanding of biodiversity dynamics and ecosystem resilience.

Dr Isamar Cortés
Postdoctoral Researcher, Functional Biodiversity & Remote Sensing Lab, ECI
Isamar Marie Cortés, Ph.D., is a Postdoctoral Researcher in the Environmental Change Institute at the University of Oxford, where she works on understanding biodiversity on forest resilience through a combination of field work and remote sensing analysis. She is a physical geographer by training, with emphasis on coupling remote sensing analysis with numerical models to quantify Earth surface processes. Throughout her career, Isamar has led numerous collaborative projects, including those with NASA, where she analysed changes in mangrove vegetation and tree structure, as well as using Google Earth Engine and other tools for geospatial analysis. She has also received several research grants, including funding from NASA and the National Science Foundation, to advance her studies in climate impacts and ecosystem modelling. As a leader in the scientific community, Isamar founded the GeoLatinas Coding Group to empower underrepresented groups in Earth sciences, providing a space for learning open-source programming. She has also contributed to science communication initiatives, co-directing the Code to Communicate program, which provides bilingual coding and geoscience training. In her career, Isamar hopes to continue to understand how climate change will alter tropical forest dynamics and bring this research to local stakeholders.

Dr Kendall Jefferys
Postdoctoral Researcher, Leverhulme Centre for Nature Recovery, ECI
Broadly, Kendall’s research interests are in remote sensing applications to pollinator ecology, exploring how we can scale monitoring of pollinator communities and their interactions with plants across various environmental gradients. Kendall will be applying these questions as a post-doctoral researcher at the LCNR, working on remote sensing approaches to characterise pollinator diversity and plant-pollinator interactions in nature recovery landscapes of Eastern Ghana. She is also a stipendiary lecturer in ecology at Worcester College.

Bhavya Palugudi
Research assistant, Ecosystems Lab
Bhavya is a research assistant at the Ecosystems Lab, where she is working on applying the ecosystem energetics methodology across different ecosystems. Her research focuses on testing metrics to quantify ecosystem vibrancy and the diversity of energetic pathways in a community to explore how an energetics lens adds to our understanding of ecosystem health in addition to traditional metrics such as taxonomic and functional diversity. She completed her MSc in Biodiversity, Conservation and Management at SOGE where she explored biogeographic variation in energy flows in bird and mammal communities in Peruvian and Bornean lowland tropical rainforests. She has a background in marine biology and has previously worked on the intersections between gender and fisheries management, and with the Wildlife Conservation Society to quantify trends in illegal wildlife trade.
Support Staff

Delaney Demaret
Ecosystems Programme Assistant
Delaney joined the Ecosystems Lab in 2026 as a Project Assistant for the Ecosystems and Biodiversity Programme. She previously completed her MSc in Nature, Society and Environmental Governance at the School of Geography and the Environment, where she examined how different forms of environmental knowledge shape forest governance in the Amazon. Alongside her academic work, Delaney has collaborated with Indigenous-led organisations and research teams across the Peru–Brazil borderlands. Her experience includes research coordination, mapping and GIS, and facilitating partnerships between academic, NGO, and community actors. She is particularly interested in how interdisciplinary research can contribute to more just and effective conservation strategies.

Jane Applegarth
PA to Professor Yadvinder Malhi (part time)
Jane provides administrative support to Professor Yadvinder Malhi and organises the termly Nature seminar series. Hosted by the Leverhulme Centre for Nature Recovery and the Oxford Biodiversity Network, the weekly Nature seminars feature guest speakers presenting on a broad range of topics covering any aspect of nature. To find out more about these talks or to be added to our mailing list, please email biodiversity@ouce.ox.ac.uk. Jane has a BSc in Environmental Studies from the Open University and is particularly interested in biodiversity and conservation.

Stephen Thomas
Centre manager for the Leverhulme Centre for Nature Recovery
Stephen joined in 2023 as the centre manager for the Leverhulme Centre for Nature Recovery. He is responsible for day-to-day operations of the centre; managing the communication and program management processes across the multiple workstreams and assisting the directors in delivering against the strategic plan to meet the centre’s core aims. Stephen has over a decade’s worth of experience in project and program management and has been a keynote speaker at international project management conferences. After a career delivering digital and tech projects for multi-national companies, he moved to working in international development. He was responsible delivering the technology component for one of DfID’s SPHEIR programs (Strategic Partnerships for Higher Education Innovation and Reform) which used online tools to mentor and train junior doctors, nurses and midwifes in Somaliland. More recently he studied forestry at Bangor University and has been working on environmental regeneration projects on Prosopis-affected farmlands in East Africa; as well working on forestry related projects in the UK through the Royal Forestry Society.

Polly Nuttgens
Administrator, Energy Programme and Leverhulme Centre for Nature Recovery
Polly’s role is to manage the administrative office of the Leverhulme Centre for Nature Recovery, and support its day-to-day administration and processes including recruitment, finance and liaison with the Leverhulme Trust. As Administrator for the ECI Energy programme she supports the research and engagement activities of the energy team and is responsible for internal and external processes related to programme activities. Prior to joining the SOGE she worked as Alumni Relations Officer for the Blavatnik School of Government, Executive Coordinator at the Saïd Business School, for the Development Department of the Ashmolean Museum as well as Arts Council England and Modern Art Oxford. Polly is a graduate in Fine Art from Liverpool John Moores University.

Carlyn Samuel
Communications and Events Manager, Leverhulme Centre for Nature Recovery
Carlyn joined in 2023 as the Communications and Events manager for the Leverhulme Centre for Nature Recovery. She is looking forward to promoting the incredible work being done in the Centre to both internal and external audiences. She will be managing the website for the Centre as well as the social media, press relations and publicity. She will also be arranging events such as workshops, public outreach activities and a series of ‘Nature Seminars’. Previously, Carlyn worked as a Research Facilitator in the ICCS lab in the Biology department, but prior to that she worked in the printing industry as an Account Director in a marketing and communications agency, she left that role after 15 years to carry out a Masters in Conservation Science at Imperial College, which led to a huge career change, and has never looked back.
