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Registros recuperados: 51
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Coping with Multiple Stresses in Rural South Africa Ecology and Society
Quinn, Claire H.; Leeds University; c.h.quinn@leeds.ac.uk; Ziervogel, Gina; Department of Environmental and Geographical Science, University of Cape Town; gina@csag.uct.ac.za; Taylor, Anna; Stockholm Environment Institute ;; Takama, Takeshi; Stockholm Environment Institute;; Thomalla, Frank; Department of Environment and Geography, Macquarie University ;.
Tipo: Peer-Reviewed Reports Palavras-chave: Climate change; Food security; Multiple stressors; Sub-Saharan Africa; Vulnerability.
Ano: 2011
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Making Investments in Dryland Development Work: Participatory Scenario Planning in the Makanya Catchment, Tanzania Ecology and Society
Enfors, Elin I; Natural Resources Management, Department of Systems Ecology, Stockholm University, Sweden; elin@ecology.su.se; Gordon, Line J; Stockholm Resilience Center, Stockholm University, Sweden; Natural Resources Management, Department of Systems Ecology, Stockholm University, Sweden; line@stockholmresilience.su.se; Peterson, Garry D; Department of Geography and McGill School of Environment, McGill University, Canada; Stockholm Resilience Center, Stockholm University, Sweden; garry.peterson@mcgill.ca; Bossio, Deborah; International Water Management Institute (IWMI), Sri Lanka; d.bossio@iwmi.cgiar.org.
The agro-ecosystems of semi-arid and dry sub-humid SSA are inherently dynamic. At this point in time they are also experiencing a series of complex social–ecological changes that make their future even more uncertain. To ensure that development investments made today in the small-scale farming systems that dominate these regions make sense also in a long-term perspective they should benefit the local communities over a range of potential futures. We applied a participatory scenario planning approach to a smallholder farming community in semi-arid Tanzania, exploring four alternative development trajectories for the area, to increase the robustness of current investments in small-scale water system technologies. We found that water system...
Tipo: Peer-Reviewed Reports Palavras-chave: Dryland regions; Future; Investments; Participatory scenario planning; Small-scale farming; Sub-Saharan Africa; Uncertainty; Water system technologies.
Ano: 2008
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Small Reservoirs, Landscape Changes and Water Quality in Sub-SaharanWest Africa ArchiMer
Cecchi, Philippe; Forkuor, Gerald; Cofie, Olufunke; Lalanne, Franck; Poussin, Jean-christophe; Jamin, Jean-yves.
Small reservoirs (SRs) are essential water storage infrastructures for rural populations of Sub-SaharanWest Africa. In recent years, rapid population increase has resulted in unprecedented land use and land cover (LULC) changes. Our study documents the impacts of such changes on the water quality of SRs in Burkina Faso. Multi-temporal Landsat images were analyzed to determine LULC evolutions at various scales between 2002 and 2014. Population densities were calculated from downloaded 2014 population data. In situ water samples collected in 2004/5 and 2014 from selected SRs were analyzed for Suspended Particulate Matter (SPM) loads, an integrative proxy for water quality. The expansion of crop and artificial areas at the expense of natural covers controlled...
Tipo: Text Palavras-chave: Small reservoirs; Sub-Saharan Africa; Anthropogenic pressures; Water quality.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00641/75272/75536.pdf
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Ethnomedicinal plants used for snakebite treatments in Ethiopia: a comprehensive overview J. Venom. Anim. Toxins incl. Trop. Dis.
Yirgu,Abraham; Chippaux,Jean-Philippe.
Abstract Traditional medicine plays an important role in the daily lives of people living in rural parts of Ethiopia. Despite the fact that Ethiopia has a long history of using traditional medicinal plants as an alternative medicine source, there is no checklist compiling these plants used for snakebite treatment. This review collected and compiled available knowledge on and practical usage of such plants in the country. A literature review on medicinal plants used to treat snakebites was conducted from 67 journal articles, PhD dissertation and MSc theses available online. Data that summarize scientific and folk names, administration methods, plant portion used for treatment and method of preparation of recipes were organized and analyzed based on citation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ethnobotany; Medicinal plant; Traditional treatment; Snakebite; Envenomation; Sub-Saharan Africa; Ethiopia.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992019000100205
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Snakebite in Bobo-Dioulasso, Burkina Faso: illustration of realities and challenges for care based on a clinical case J. Venom. Anim. Toxins incl. Trop. Dis.
Kyelem,CG; Yaméogo,TM; Ouédraogo,SM; Zoungrana,J; Poda,GEA; Rouamba,MM; Ouangré,A; Kissou,SA; Rouamba,A.
We report herein the case of 19-year-old female farmer who suffered a double snakebite on the right foot. After an unsuccessful traditional treatment, she consulted a health center, 48 hours after the bite. Upon arrival at the hospital, she showed signs of severe damage, including hemorrhagic syndrome, extensive gangrene of the bitten limb and severe acute renal failure. Due to financial constraints, neither antivenom nor the scheduled amputation was performed. After 35 days of hospitalization, she returned home, against the advice of medical personnel. Our case summarizes the daily challenges of patients and practitioners that suffer snakebite envenomation in Bobo-Dioulasso, western Burkina Faso.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Envenomation; Snakebite; Management; Burkina Faso; Sub-Saharan Africa.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992012000400021
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The WHO strategy for prevention and control of snakebite envenoming: a sub-Saharan Africa plan J. Venom. Anim. Toxins incl. Trop. Dis.
Chippaux,Jean-Philippe; Massougbodji,Achille; Habib,Abdulrazaq G..
Abstract Snakebite is a critical public health issue in tropical countries, particularly in Africa, where 20% of snakebites globally occur. In 2017, the WHO added snakebite envenoming to the category A of neglected tropical diseases. In 2019, thanks to broad institutional and international NGO support, including strong mobilization of African experts and governments, WHO launched a strategy for prevention and control of snakebite envenoming with more ambitious goals. In sub-Saharan Africa, accessibility of antivenoms and symptomatic, adjuvant or replacement therapy is a priority. Several antivenoms are available but their evaluation has not been properly carried out and they remain expensive. To date, there are no manufacturers of antivenom in sub-Saharan...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Snakebite; Envenomation; Antivenom; Sub-Saharan Africa; Neglected tropical diseases; Control.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992019000100101
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The Pentatomoidea (Hemiptera: Heteroptera) of Sub-Saharan Africa : a database Naturalis
Robertson, I.A.D..
Introduction The purpose of this database is to list all the taxonomic publications on this Superfamily in Sub-Saharan Africa until the year 2000. It is also intended to give an indication of the kind of information contained in each paper. No attempt has been made to change or criticise what authors have written. Instead the intent has been to record accurately the published material. This database does not deal with higher classification, except when the terms are, for clarity, used as part of a recent revision, such as Kumar 1974 on Acanthosomidae. There are eleven groupings within the superfamily and all have been given family status. The treatment of each family varies, depending on the present level of knowledge and whether recent revisions or...
Tipo: Book (monograph) Palavras-chave: Pentatomoidea; Hemiptera; Heteroptera; Sub-Saharan Africa; 42.75.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/391284
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Catalogue of the sub-Saharan species of the genus Seladonia Robertson, 1918, with description of two new species (Hymenoptera: Apoidea: Halictidae) Naturalis
Pauly, A..
This paper is a synonymic catalogue of the 18 species of the genus Seladonia Robertson, 1918 (Apoidea: Halictidae) from sub-Saharan Africa. Two new species are described: S. cyanella spec. nov., a small blue endemic species of the Yemeno-Erythrean area^S. kuhlmanni spec. nov., an endemic species of the species rich South African Karoo. Lectotypes are designated for Halictus atroviridis Cameron, 1906, H. capensis Friese, 1909, H. jucundus Smith, 1853 and H. chalybaeus Friese, 1925.
Tipo: Article / Letter to the editor Palavras-chave: Seladonia; Halictidae; Sub-Saharan Africa; Lectotype designation; New species; 42.75.
Ano: 2008 URL: http://www.repository.naturalis.nl/record/273957
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African Aquaculture: A Regional Summary with Emphasis on Sub-Saharan Africa OceanDocs
Moehl, J.; Machena, C..
The African Region consists of 48 countries and five island nations, most of which are practising some form of aquaculture, often at a very low level. Over half the countries report producing less than 100 mt annually. The largest producer is Nigeria (17 700 mt) followed by Madagascar (5 100 mt) and Zambia (4 700 mt). The 1997 combined aquaculture production of the region was 40 300 mt. Aquaculture is estimated to be 95 percent small scale, with fish ponds integrated into the mosaic of agricultural activities. Mean yield is approximated as 500 kg/ha/yr, although the range is wide, from less than a hundred to more than 10 000 kg/ha/yr. A typical scenario would be a 300 m2 pond producing 15 kg a year relying on family labour and on-farm inputs. There is...
Tipo: Proceedings Paper Palavras-chave: Fish Farming; Aquaculture; Sub-Saharan Africa; Development; Africa; Aquaculture.
Ano: 2000 URL: http://hdl.handle.net/1834/371
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Leveraging regional growth dynamics in African agriculture AgEcon
Abdulai, Awudu; Johnson, Michael; Diao, Xinshen.
This study focuses on public investments and policy reforms for leveraging growth spillovers at the Africa regional level. It reviews first the theory and evidence of knowledge and growth spillovers generally and second the evidence in the African context. Given the limited and scattered evidence of actual past spillovers, it reviews recent ex ante simulations using partial and general equilibrium models to stress the potential for spillovers from greater cooperation in agricultural research, and from trade liberalization, policy harmonization and investments in infrastructure. The results show that permitting greater crossborder transfers and adopting improved technologies could have large spillover multiplier effects on overall economic welfare in the...
Tipo: Journal Article Palavras-chave: Sub-Saharan Africa; Regional cooperation; Spillovers; Agricultural development; International Development.
Ano: 2006 URL: http://purl.umn.edu/57021
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Maize Revolutions in Sub-Saharan Africa AgEcon
Smale, Melinda; Byerlee, Derek R.; Jayne, Thomas S..
There have been numerous episodes of widespread adoption of improved seed and long-term achievements in the development of the maize seed industry in Sub-Saharan Africa. This summary takes a circumspect view of technical change in maize production. Adoption of improved seed has continued to rise gradually, now representing an estimated 44 percent of maize area in Eastern and Southern Africa (outside South Africa), and 60 percent of maize area in West and Central Africa. Use of fertilizer and restorative crop management practices remains relatively low and inefficient. An array of extension models has been tested and a combination of approaches will be needed to reach maize producers in heterogeneous agricultural environments. Yield growth overall has been...
Tipo: Working or Discussion Paper Palavras-chave: Sub-Saharan Africa; Maize; Seed; Agricultural and Food Policy; Production Economics.
Ano: 2011 URL: http://purl.umn.edu/113651
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The role of rural off-farm employment in agricultural development among farm households in low-income countries: Evidence from Zimbabwe AgEcon
Chikwama, Cornilius.
This study examines the widely held view that earnings from rural wage employment can help farm households overcome constraints on farm investments. It uses a panel dataset of 359 randomly selected farm households from three resettlement areas in Zimbabwe over the period 1996/97 to 1998/99. It finds no evidence to support the hypothesis that income from rural wage employment contributes towards increasing farm investment for the sampled households, and it attributes this to very low savings rates on rural wage employment income. Further, it finds that levels of farm investment increase with the amount of labor and land used in farm production in the previous year, and for households with male and/or older household heads. It also finds an inverse relation...
Tipo: Journal Article Palavras-chave: Rural off-farm wage employment; Farm investment; Agricultural development; Sub-Saharan Africa; Zimbabwe; International Development; Labor and Human Capital; O12; O18; J40; R20.
Ano: 2010 URL: http://purl.umn.edu/93874
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Incentives for Fertilizer Use in Sub-Saharan Africa: A Review of Empirical Evidence on Fertilizer Response and Profitability AgEcon
Yanggen, David; Kelly, Valerie A.; Reardon, Thomas; Naseem, Anwar.
This research addresses two questions: Why is fertilizer not yet fulfilling its potential as a major stimulus to agricultural productivity in SSA? What can be done to improve the situation? Our answers are based on an extensive review of fertilizer response, profitability, and policy literature as well as some analysis of crop budgets and aggregate national statistics on fertilizer consumption. Much of the debate about fertilizer use in SSA focuses on two issues: whether the profit incentive is adequate and, if so, whether farmers have the capacity to access and use it.
Tipo: Report Palavras-chave: Food security; Food policy; Fertilizer use; Sub-Saharan Africa; Crop Production/Industries; Downloads May 2008-July 2009: 153; Q18.
Ano: 1998 URL: http://purl.umn.edu/54677
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Dairy development in Ethiopia AgEcon
Ahmed, Mohamed A. M.; Ehui, Simeon K.; Assefa, Yemesrach.
Ethiopia holds large potential for dairy development due to its large livestock population, the favorable climate for improved, high-yielding animal breeds, and the relatively disease-free environment for livestock. Given the considerable potential for smallholder income and employment generation from high-value dairy products, development of the dairy sector in Ethiopia can contribute significantly to poverty alleviation and nutrition in the country. Like other sectors of the economy, the dairy sector in Ethiopia has passed through three phases or turning points, following the economic and political policy in the country. In the most recent phase, characterized by the transition towards market-oriented economy, the dairy sector appears to be moving...
Tipo: Working or Discussion Paper Palavras-chave: Ethiopia; Dairy; Livestock; Dairy products industry; Livestock productivity; Africa; Sub-Saharan Africa; East Africa; Livestock Production/Industries.
Ano: 2004 URL: http://purl.umn.edu/60321
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What are the Enduring Effects of Fertilizer Subsidy Programs on Recipient Farm Households? Evidence from Malawi AgEcon
Ricker-Gilbert, Jacob; Jayne, Thomas S..
Replaced with revised version of paper 08/23/11.
Tipo: Working or Discussion Paper Palavras-chave: Fertilizer subsidies; Malawi; Sub-Saharan Africa; Endogeneity; Panel data; International Development; Political Economy; C23; C26; Q12; Q13; Q18.
Ano: 2011 URL: http://purl.umn.edu/109593
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The impact of Access to Credit and Training on Technological Adoption: A Case of the Rice Sector in Tanzania AgEcon
Nakano, Yuko; Kajisa, Kei.
Using an extensive household-level data set collected in Tanzania, this paper investigates the determinants of the technological adoption of rice cultivation and of paddy yield. We especially focus on the impact of credit and training on the adoption of modern technologies. Based on empirical results, we argue that modern inputs and improved practices of rice cultivation enhance the increase in paddy yield. We also argue that the impact of credit and training on the adoption of modern technologies can differ for different technologies. If the adoption of a specific technology does not require a large amount of cash, knowledge given by training is sufficient to enhance adoption. On the other hand, those who can access credit or self-finance can adopt...
Tipo: Conference Paper or Presentation Palavras-chave: Technological Adoption; Green Revolution; Sub-Saharan Africa; Crop Production/Industries; International Development; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies; O12; O13; Q16; Q18.
Ano: 2011 URL: http://purl.umn.edu/103763
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Boosting smallholder production for food security: some approaches and evidence from studies in sub-Saharan Africa AgEcon
Matshe, Innocent.
This paper uses the sustainable livelihoods framework to explore the contribution of smallholder production to food security in some sub-Saharan African countries and relates it to the South African case. Noting that many of the world’s hungry are smallholder farmers, it is clear that food insecurity is closely linked to the livelihood strategies of these farm households. As previous studies have shown, food insecurity is linked to livelihood assets, strong institutional support and a favourable external environment. In particular, the paper finds that food security depends on cereal output, budgetary support to agriculture, agricultural value added and poverty – all variables strongly linked to the sustainable livelihoods framework. Since most poor rural...
Tipo: Journal Article Palavras-chave: Food security; Livelihoods; Smallholder agriculture; Sub-Saharan Africa; Consumer/Household Economics.
Ano: 2009 URL: http://purl.umn.edu/58217
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A Cross-Country Analysis of Household Responses to Adult Mortality in Rural Sub-Saharan Africa: Implications For HIV/AIDS Mitigation And Rural Development Policies. AgEcon
Mather, David; Donovan, Cynthia; Jayne, Thomas S.; Weber, Michael T.; Chapoto, Antony; Mazhangara, Edward; Bailey, Linda; Yoo, Kyeongwon; Yamano, Takashi; Mghenyi, Elliot W..
This paper summarizes and synthesizes across the results of a set of country studies on the effects of prime-age adult mortality on rural households in Kenya, Malawi, Mozambique, Rwanda, and Zambia. Each study is based on large representative rural household surveys. These findings have implications for the design of efforts to mitigate some of the most important effects of rural adult mortality, and for key development policies and priorities.
Tipo: Report Palavras-chave: HIV/AIDS; Sub-Saharan Africa; Mortality; Community/Rural/Urban Development; Health Economics and Policy; Downloads July 2008 - July 2009: 21; I11.
Ano: 2004 URL: http://purl.umn.edu/54571
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Sectoral and welfare effects of the global economic crisis on Uganda: a recursive dynamic CGE analysis AgEcon
Twimukye, Evarist P.; Matovu, John Mary; Levine, Sebastian; Birungi, Patrick.
This paper analyses the impact of the global economic and financial crisis on Uganda notably on macro-economic aggregates, sectoral output and household welfare, and the potential role of fiscal policy and reform in mitigating the impacts. We find that second round effects from a reduction in financial inflows such as remittances, foreign direct investments and overseas development assistance, as well as reduction in international demand from cash crops such as cotton, tea and coffee, could lead to a reduction in economic growth by 0.6 percentage points on average annually over the period 2008- 2010 compared to a baseline reflecting pre-crisis conditions. A surge in regional exports and early counter-cyclical policies in particular are found to dampen the...
Tipo: Report Palavras-chave: Sub-Saharan Africa; Uganda; Global economic and financial crisis; Computable general equilibrium (CGE); Consumer/Household Economics; Financial Economics; Industrial Organization; International Development; Production Economics; Public Economics; C68; D58; E62; F15; H62; I32.
Ano: 2010 URL: http://purl.umn.edu/113619
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Poverty, AIDS, Orphanhood, Gender, and Child Schooling in Sub-Saharan Africa: A Review of the Evidence AgEcon
Mather, David.
There is growing concern that the HIV/AIDS epidemic may reduce long-term human capital development through reductions in child schooling in SSA, thus severely limiting the longterm ability of orphans and their extended families to escape poverty. In response, some have called for targeted schooling subsidies for orphans and other children made vulnerable by HIV/AIDS, on the assumption that such children are under-enrolled. This paper provides an overview of the data sources used by existing empirical studies that test for orphan schooling deficits and the methodological challenges that they face. It then reviews the empirical evidence on the effects of orphan status or adult mortality on child schooling, as well as the prevalence of orphans in SSA and...
Tipo: Working Paper Palavras-chave: HIV/AIDS; Child schooling; Poverty; Sub-Saharan Africa; Food Security and Poverty.
Ano: 2011 URL: http://purl.umn.edu/119319
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