Senior Research Scientist KMFRI – Oceanography & Hydrography Mangrove Eco-Physiology Stress-driven Dynamics • Restoration Ecology • Community Awareness Email: jokello@kmfri.go.ke Email: Judith_okello2003@yahoo.com Current Roles Senior Research Scientist – KMFRI Mombasa
KMFRI Representative – National Mangrove Management Committee
Collaborator – Wetland International (CBEMR Champion) Academic Qualifications PhD – Bio-engineering Sciences
MSc – Ecological Marine Management (ECOMAMA) – Marine Pollution & Risk Management
BSc – Forestry Research Location KMFRI Mombasa
Department: Oceanography and Hydrography
Specialization: Eco-physiology | Leadership Focus: Advancing mangrove ecosystem resilience through stress-response research, community-based restoration, and policy integration for sustainable coastal resource management. Dr. Judith A. Okello has worked along the coast of Kenya in different organizations and in varying capacities for well over 10 years, a period during which she has gained a wide range of experience in ecological management of coastal resources. At KMFRI, she is currently serving as a Senior Research Scientist, mainly working in the mangrove ecosystem with special interests in stress-driven physico-chemical dynamics and the associated physio-anatomical response of mangrove trees. Dr. Okello has played a pivotal role in the development of a number of key documents instrumental in the management of coastal ecosystems, including the National Mangrove Ecosystem Management Plan (launched in 2017) and the Second Edition of the State of Coast Report (2018), among others. She represents KMFRI in the National Mangrove Management Committee, which plays a technical advisory role to the Chief Conservator of Forests (CCF) in matters pertaining to Kenya Forest Service implementation of management plans in the mangrove ecosystem. Dr. Okello has also demonstrated excellent skills in interacting with local communities while creating awareness on conservation of forest resources. She is currently collaborating with Wetland International in championing the concept of Community Based Ecosystem Restoration (CBEMR) along the Coast. Governance & Policy Contributions National Mangrove Ecosystem Management Plan (2017) State of Coast Report – 2nd Edition (2018) KMFRI Rep – National Mangrove Management Committee Community Based Ecosystem Restoration (CBEMR) Research Interests & Specializations - Ecosystems' response to disturbance – Understanding how mangrove systems react to natural and anthropogenic stressors
- Restoration ecology – Developing and implementing effective mangrove restoration strategies
- Community awareness – Engaging local communities in conservation and sustainable resource use
- Population dynamics – Analyzing mangrove population structure and regeneration patterns
- Stress-driven physico-chemical dynamics – Investigating sedimentation, burial, and environmental stressors on mangrove health
- Physio-anatomical responses – Examining root development, xylem structure, and hydraulic conductivity under stress
Key Research Findings & Scholarly Contributions Mangrove Resilience to Sedimentation: Pioneering research on how mangroves survive partial burial by developing new roots and adapting root and stem anatomy (Trees 2019). Investigated hydraulic conductivity and xylem structure of partially buried mangrove trees (Plant and Soil 2017). Community Perceptions & Participatory Management: Led studies on the status of Mtwapa Creek mangroves as perceived by local communities (WIO Journal of Marine Science 2019), demonstrating excellence in community engagement and awareness creation. Mangrove Structure & Harvesting Impacts: Published research on the structure of mangrove forests in Kiunga-Pate Island conservancies, demonstrating how selective harvesting and natural mortalities shape forest composition (Estuarine, Coastal and Shelf Science 2022). Experimental Sedimentation Studies: Examined effects of experimental sedimentation on phenological dynamics and leaf traits of replanted mangroves at Gazi Bay, Kenya (Ecology and Evolution 2014). Dr. Judith Okello's leadership as a Senior Research Scientist at KMFRI brings exceptional expertise in mangrove eco-physiology, restoration ecology, and community engagement – strengthening the Institute's capacity to deliver evidence-based management plans, advance climate-resilient restoration techniques, and foster collaborative governance of Kenya's critical mangrove ecosystems. | 
