A characterization of the drivers, pressures, ecosystem functions and services of Namatala wetland, Uganda

Namaalwa, S.; Dam, A. A. van; Funk, Andrea; Ajie, Guruh Satria; Kaggwa, R.

doi:10.1016/j.envsci.2013.01.002

Cited by 69 publications

(38 citation statements)

References 9 publications

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“…Local studies in Kenya (e.g. Owino and Ryan 2007) and Uganda (Namaalwa et al 2013) demonstrate irreversible conversion of papyrus wetlands into agricultural land.…”

Section: Introductionmentioning

confidence: 99%

A synthesis of past, current and future research for protection and management of papyrus (Cyperus papyrus L.) wetlands in Africa

Dam

Kipkemboi

Mazvimavi

et al. 2014

Wetlands Ecol Manage

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Van Dam, A.A. et al. (2014). A synthesis of past, current and future research for protection and management of papyrus (Cyperus papyrus L. Papers from the session, combined with additional contributions, were collected in a special issue of Wetlands Ecology and Management. The current paper reviews ecological and hydrological characteristics of papyrus wetlands, summarizes their ecosystem services and sustainable use, provides an overview of papyrus research to date, and looks at policy development for papyrus wetlands. Based on this review, the paper provides a synthesis of research and policy priorities for papyrus wetlands and introduces the contributions in the special issue. Main conclusions are that (1) there is a need for better estimates of the area covered by papyrus wetlands. Limited evidence suggests that the loss of papyrus wetlands is rapid in some areas; (2) there is a need for a better understanding and modelling of the regulating services of papyrus wetlands to support trade-off analysis and improve economic valuation; (3) research on papyrus wetlands should include assessment of all ecosystem services (provisioning, regulating, habitat, cultural) so that trade-offs can be determined as the basis for sustainable management strategies ('wise use'); (4) more research on the governance, institutional and socio-economic aspects of papyrus wet-lands is needed to assist African governments in dealing with the challenges of conserving wetlands in the face of growing food security needs and climate change. The papers in the special issue address a number of these issues.

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“…Local studies in Kenya (e.g. Owino and Ryan 2007) and Uganda (Namaalwa et al 2013) demonstrate irreversible conversion of papyrus wetlands into agricultural land.…”

Section: Introductionmentioning

confidence: 99%

A synthesis of past, current and future research for protection and management of papyrus (Cyperus papyrus L.) wetlands in Africa

Dam

Kipkemboi

Mazvimavi

et al. 2014

Wetlands Ecol Manage

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“…Table 3 lists the groups of criteria with the number of indicators used within each group assessed qualitatively using expert opinion or quantitatively using models or measurement. In the Lobau, where a long-term data collection program exists and a large research project has been executed, all indicators are numerical (see Funk et al, 2012;Baart et al, 2012). However, in developing countries this is not the case.…”

Section: Criteria and Indicatorsmentioning

confidence: 99%

“…For the Abras de Mantequilla, although little research was available before the start of the project, a multidisciplinary team of researchers was able to quantify up to 40% of the indicators, during the run time of the project (Arias-Hidalgo et al 2012;Alvarez-Mieles et al 2012). In Uganda, focus was on labourintensive field data collection by means of sampling and lab analysis, and only 10-20% of the indicators could be quantified (Namaalwa et al 2012). In case of the Gemenc, 7 model-based hydroecological indicators for vulnerability analysis , and 4 qualitative indicators for institutional analysis (Ostrovskaya et al, 2012) were applied.…”

Section: Criteria and Indicatorsmentioning

confidence: 99%

“…Liersch et al (2012) and Pataki et al (2012) focus on vulnerability assessment in the Inner Niger Delta (IND) and Gemenc wetlands respectively, while Cools et al 2012a extend the concepts of VA to analyse adaptive capacity in the IND, specifically in the context of human health. Namaalwa et al (2012) illustrate the process of characterizing the ecosystem services provided by the Namatala wetland in Uganda, and the current trends in land use and management that jeopardise those services. Other papers report on technical studies which underpin management approaches -for example, ecological niche models (Funk et al 2012) and floodplain restoration options (Baart et al 2012) for the Lobau wetlands in Austria; and a study of the impact of water quality on aquatic biota in Abras de Mantequilla (Alvarez-Mieles et al 2012).…”

Section: This Special Issue Of the Journal Environmental Science And mentioning

confidence: 99%

“…Namaalwa et al (2012) illustrate the process of characterizing the ecosystem services provided by the Namatala wetland in Uganda, and the current trends in land use and management that jeopardise those services. Other papers report on technical studies which underpin management approaches -for example, ecological niche models (Funk et al 2012) and floodplain restoration options (Baart et al 2012) for the Lobau wetlands in Austria; and a study of the impact of water quality on aquatic biota in Abras de Mantequilla (Alvarez-Mieles et al 2012). Two papers contrast experiences from the developed and developing worlds relating to integrating wetlands into broader catchment management (Rebelo et al 2012), and the impact of institutional capacity on wetland management in different contexts in Africa and Europe (Ostrovskaya et al 2012).…”

Section: This Special Issue Of the Journal Environmental Science And mentioning

confidence: 99%

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WETwin: A structured approach to evaluating wetland management options in data-poor contexts

Johnston

Cools

Liersch

et al. 2013

Environmental Science & Policy

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This special issue of Environmental Science and Policy presents the outcomes of the WETwin project (Enhancing the role of wetlands in integrated water resources management for twinned river basins in EU, Africa and South-America in support of EU Water Initiatives), an international research project funded by the FP7 programme of the European Commission. The project aimed to improve wetland management by maximizing benefits from wetland use while maintaining ecological health, using case studies from Europe, Africa and South America.In much of the less developed world, data on wetland functions, processes and values are scarce even while wetlands often provide a critical component of livelihoods. Management decisions on balancing competing demands for wetland use must often be made in the absence of comprehensive information. This paper introduces the approach developed and tested under WETwin to evaluate wetland management structures and solutions in data-poor contexts, summarizing a conceptual framework which has evolved from seven very diverse case studies. A structured, modular approach was devised which combined multi-criteria analysis, trade-off analysis and vulnerability analysis, drawing on best available information, including quantitative modelling, qualitative "expert opinion", and local stakeholders' knowledge and values. The approach used in WETwin has three important strengths: it involves stakeholders at all stages of the decision process, it combines qualitative and quantitative data (and therefore allows inclusion of poorly known and potentially important system components) and finally, it provides a relatively simple and structured approach to evaluate wetland management interventions and integrate impact, feasibility and institutional assessments, vulnerability analysis and trade-off analysis. The overall conceptual framework developed for WETwin was found to be robust and transferable to different contexts.Keywords: wetland management, ecosystem services, vulnerability, multi-criteria analysis, stakeholder participation Highlights WETwin project developed methods assessing wetland management in data-poor contexts  Structured approach to combining quantitative modelling and qualitative "expert opinion"  Multi-criteria and trade-off analyses used to rank management against stakeholder objectives  Impact of external factors (climate change, population growth) explored using scenario analysis

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Occurrence of Trace Metals in Food Crops Grown on the Mbale Dumpsite, Uganda, and Human Health Risks

Awino

Maher

Krikowa

et al. 2020

Integr Envir Assess & Manag

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Food crops can be used as biomonitors to assess potential public health food safety hazards from contaminated agricultural environments. Globally, more than 800 million people grow fruits, vegetables, and grains on urban garden soils with unknown health risks. This worldwide practice has exposed consumers to pathogenic and carcinogenic risks from locally grown and imported contaminated foodstuffs such as Amaranthus cruentus and Zea mays, traditional and widely consumed crops across the globe. This study used Z. mays and A. cruentus crops to investigate the occurrence and spatial variations of aluminum (Al), chromium (Cr), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), selenium (Se), cadmium (Cd), mercury (Hg), and lead (Pb) concentrations across the Mbale dumpsite, Uganda. Mean concentrations for Fe, Al, Zn, Mn, and Cu were high in both crops, whereas Pb, Cr, Co, Cd, As, Hg, Se, and Ni occurred in trace amounts. Using the 2 crops as biomonitors, significant variations for Al, Zn, Fe, Cr, and Co concentrations in individual crops were identified across the dump center, hill slope, and riverbank. The variations in Al, Zn, Fe, Cr, and Co concentrations were specific for crop types, crop parts, and location. The highest overall accumulation of metals was at the dump center and in crop leaves. Except Pb concentrations in Z. mays seeds, Cr, Pb, Zn, and Al concentrations in other crop parts were above World Health Organization/Food and Agricultural Organization consumer food safety limits. Therefore, Z. mays and A. cruentus consumption could pose health risks to consumers. Further health assessments and potential regulations are recommended to reduce potential health risks from metals in crops for human consumption. Integr Environ Assess Manag 2020;16:362-377.

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A characterization of the drivers, pressures, ecosystem functions and services of Namatala wetland, Uganda

Cited by 69 publications

References 9 publications

A synthesis of past, current and future research for protection and management of papyrus (Cyperus papyrus L.) wetlands in Africa

A synthesis of past, current and future research for protection and management of papyrus (Cyperus papyrus L.) wetlands in Africa

WETwin: A structured approach to evaluating wetland management options in data-poor contexts

Occurrence of Trace Metals in Food Crops Grown on the Mbale Dumpsite, Uganda, and Human Health Risks

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