A5009964200- Coastal wetland ecosystem dynamics
- Conservation, Biodiversity, and Resource Management
- Aquatic Ecosystems and Biodiversity
- Oil Palm Production and Sustainability
- Coastal and Marine Dynamics
- Agricultural and Environmental Management
- Marine and coastal plant biology
- Coral and Marine Ecosystems Studies
- Plant and Fungal Species Descriptions
- Plant responses to water stress
- Coastal and Marine Management
- Land Rights and Reforms
- African Botany and Ecology Studies
- Marine and fisheries research
- Global Maritime and Colonial Histories
- Fish Biology and Ecology Studies
- Hydropower, Displacement, Environmental Impact
- Wood and Agarwood Research
- Plant Water Relations and Carbon Dynamics
- Peatlands and Wetlands Ecology
- Geological formations and processes
- Geology and Paleoclimatology Research
- Remote Sensing and LiDAR Applications
- Urban and Rural Development Challenges
- Forest Ecology and Biodiversity Studies
Kenya Marine and Fisheries Research Institute
2015-2024
Strathmore University
2024
University of Dar es Salaam
2002-2020
International Union for Conservation of Nature (United Kingdom)
2020
Vrije Universiteit Brussel
2000-2013
University of Nairobi
2002
Technical University of Mombasa
2002
The restoration of mangroves has received a lot attention world wide for several reasons. Firstly, the long ignored ecological and environmental values mangrove forests have been documented many areas in world. Secondly, there is high subsistence dependence on natural resources from forests. In addition, large losses occurred throughout leading to coastal erosion, decline fishery other consequences, some which need urgent attention. Finally, governments are showing commitments towards...
Abstract Citizen science is gaining increasing prominence as a tool for and engagement. However, despite being potentially valuable sustainable development, citizen has little visibility in many developing countries. We undertook collaborative prioritisation process with experts conservation the environment to assess potential of environmental East Africa, including its opportunities, benefits barriers. This provided principles that are applicable across countries, particularly large‐scale...
Abstract. Mangrove forests prominently occupy an intertidal boundary position where the effects of sea level rise will be fast and well visible. This study in East Africa (Gazi Bay, Kenya) addresses question whether mangroves can resilient to a by focusing on their potential migrate towards landward areas. The combinatory analysis between remote sensing, DGPS-based ground truth digital terrain models (DTM) unveils how real vegetation assemblages shift under different projected (minimum (+9...
The importance of mangrove forests in carbon sequestration and coastal protection has been widely acknowledged. Large-scale damage these forests, caused by hurricanes or clear felling, can enhance vulnerability to erosion, subsidence rapid losses. However, it is unclear how small-scale logging might impact on functions services. We experimentally investigated the tree removal surface elevation dynamics a forest at Gazi bay, Kenya. trees five plots Rhizophora mucronata (Lam.) were first...
While mangroves are increasingly described as social-ecological systems (SESs), performing SES research is so much more than merely documenting local resource utilisation patterns in case studies. The aim of this paper to review and show how ecological, human institutional resilience could be understood fostered an era uncertainty, through the adaptive cycle (AC) heuristic. Uncertainties come many forms shapes: climate change, social economic dynamics, natural disasters, political disruption...
Mangroves are intertidal ecosystems that particularly vulnerable to climate change. At the low tidal limits of their range, they face swamping by rising sea levels; at high limits, increasing stress from desiccation and salinity. Facilitation theory may help guide mangrove management restoration in these threats suggesting how when positive intra- interspecific effects occur: such predicted stressed environments as intertidal, but have yet be shown among mangroves. Here, we report results a...
This paper presents an automated method for mangrove stand recognition (delineation and labeling) species mapping based on fuzzy per‐pixel classification techniques of a QuickBird satellite image. The four dominant in Gazi Bay (Kenya) are mapped with overall accuracy 72 percent, where the two socio‐economically most important user accuracies above 85 percent. Mangrove maps were compared to visual delineations done by expert interpreter quality was quantity overlap one has other. An...
Seagrass habitats are important natural carbon sinks, with an average of ~14 kg C m−2 buried in their sediments. The fate this following seagrass removal or damage has major environmental implications but is poorly understood. Using a experiment lasting 18 months at Gazi Bay, Kenya, we investigated the impacts loss on sediment topography, hydrodynamics, faunal community structure and dynamics. Sediment pins were used to monitor surface elevation. effects water velocity was using Plaster...
• Background and Aims The mangrove Rhizophora mucronata has previously been reported to lack annual growth rings, thus barring it from dendrochronological studies. In this study the absence of rings was reconsidered periodic nature light dark brown layers visible on polished stem discs investigated. addition, formation these in relation prevailing environmental conditions, as well their potential for age determination trees, studied.
Vegetated marine habitats are globally important carbon sinks, making a significant contribution towards mitigating climate change, and they provide wide range of other ecosystem services. However, large gaps in knowledge remain, particularly for seagrass meadows Africa. The present study estimated biomass sediment organic (Corg) stocks four dominant species Gazi Bay, Kenya. It compared Corg between areas vegetated un-vegetated 'controls', using the naturally patchy occurence at this site to...