Bio

Prof. Dickson Nyariki Bio

Professor Department  of  Land Resources Management and Agricultural Technologies, University of Nairobi and  the Ag. Deputy Vice Chancellor, Administration and HRM, South Eastern Kenya University (SEKU).  Completed Bachelor of  Range Mana

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Publications


2013

Mogotsi, K, Nyangito MM, Nyariki DM.  2013.  The role of drought among agro-pastoral communities in a semi-arid environment: The case of Botswana. Abstract

Agro-pastoral livelihoods in semi-arid Botswana have evolved and adapted to recurrent droughts endemic to the region. Droughts, more than any other phenomena, have shaped and influenced rural communities' interaction with their environment on which they eke a living. The physical aspect of droughts and their effects are well known, but the often subtle and complex dynamics emanating from drought outbreaks are less understood among communities. A study was conducted during the 2009/2010 season to investigate how communities in Kgalagadi North and Bobonong Sub-districts perceive droughts, anticipate droughts and which sections of the respective communities were most vulnerable to drought shocks. An extensive agro-ecological knowledge base, in form of environmental indicators, was used by communities to predict imminent droughts. Preparations included storing excess crop harvests during good years, storing crop residues for livestock, buying commercial feed to supplement livestock and seeking alternative sources of income outside the agricultural sector. In spite of these efforts, drought still affected the communities negatively mainly through increased livestock mortalities and crop failure-especially among poorer households. Subsequently, it is recommended that any effective aid interventions ought to understand and appreciate these dynamics to enhance resilience to future droughts and ensure sustainable rural development.

2012

Mogotsi, K; Nyangito, MM; NDM.  2012.  Vulnerability of rural agro-pastoral households to drought in semi-arid Botswana. Abstract

A survey was carried out during the 2009/10 season to examine the vulnerability of agro-pastoral communities to drought shocks in Bobonong and Kgalagadi North Sub-districts. The key drivers of vulnerability of households included: gender of the household head, livestock sales, advance preparations before drought, size of arable land under cultivation, the number of drought-tolerant crops planted, as well as, the overall yield of such crops. Although the main determinants of household vulnerability differed between the two study areas, Bobonong nonetheless had a higher percentage of highly vulnerable households. However, the two study areas still had a substantial number of vulnerable households – further underlining the seriousness of drought risk among agro-pastoralists in Botswana. Thus, timing and form of intervention, including from the government, is critical and a one-size-fits-all approach to alleviating adverse impacts of drought may not always be appropriate.

2011

Tasokwa, K;, Nyariki D;, Mkwambisi D;, Kogi-Makau W.  2011.  Gender vulnerability to climate variability and household food insecurity. Abstract

Climate variability presents different challenges for men and for women in their efforts to ensure household food security. However, despite their central role, gender issues have received only cursory attention in adaptation studies. This article looks at causes of gender vulnerability to climate variability and household food insecurity in one sub-Saharan African country: Malawi. Data were collected through a household questionnaire survey, focus group discussions and key informants' interviews in Chikhwawa and Ntcheu districts, located in the southern and central areas of Malawi. Results revealed that exposure and sensitivity to climate risks vary between men and women; therefore, each gender responds differently to climate risks, with men having more opportunities than women. The results highlight the need for policies and interventions to empower women in the access to resources that can strengthen households' resilience to climate variability.

Kabo, M, Nyangito MM.  2011.  Vulnerability to drought, adaptation and coping strategies among agro-pastoral communities in Botswana. AbstractWebsite

With the increased threat of climate change effects on the African continent, this study was carried out to document the coping mechanisms against the rampant droughts by the agropastoral communities in Botswana. The study was carried out in Kgalagadi North and Bobonong. Effects of drought in these areas included livestock death, reduced crop yields, low pasture production and increased distances to water livestock. Coping measures included enrolling into government’s labour intensive Public Works Programme, harvesting larvae of Imbrasia belina with food or turning to other sources of income, and storage of crops during good harvests. Other means were planting drought resistant crops, supplemental livestock feeding, transferring livestock to better areas, and selling off animals. These methods however did not ameliorate farmers’ problems. There is therefore need to have more holistic research efforts to tackle the effects of drought in Botswana and elsewhere in Africa.

Esilaba, AO;, Okoti M;, Keya GA;, Miriti JM;, Kigomo JN;, Olukoye G;, Wekesa L;, Ego W;, Muturi GM.  2011.  The Desert Margins Programme Approaches in Upscaling Best-Bet Technologies in Arid and Semi-arid Lands in Kenya. AbstractWebsite

Kenya’s land surface is primarily arid and semi-arid lands (ASALs) which account for 84% of the total land area. The Desert Margins Programme (DMP) in Kenya has made some contribution to understanding which technology options have potential in reducing land degradation in marginal areas and conserving biodiversity through demonstrations, testing of the most promising natural resource management options, developing sustainable alternative livelihoods and policy guidelines, and replicating successful models. In extension of sustainable natural resource management, two types of strategies were used: (i) strategies for the promotion of readily available technologies and (ii) approaches for participatory learning and action research. Thus DMP-Kenya initiated upscaling of four ‘best-bet’ technologies. Under the rangeland/livestock management options, scaling-up activities include improvement of rangeland productivity, rangeland resource management through community-based range resources monitoring/assessment, and fodder conservation for home-based herds. Restoration of degraded lands included rehabilitation of rangelands using the red paint approach in conservation of Acacia tortilis, control of Prosopis, planting of Acacia senegal trees in micro-catchments, and rehabilitation of degraded areas through community enclosures. Improved land, nutrient, and water management involved upscaling water harvesting and integrated nutrient management (INM) technologies. Activities under tree-crop/livestock interactions included upscaling of Melia volkensii and fruit trees (mangoes) and enhancing biodiversity conservation through support of beekeeping as a viable alternative livelihood. Participatory learning and action research (PLAR) was used for technology development and dissemination. Capacity building and training was a major component of upscaling of these best-bet technologies

2009

Nyariki, DM.  2009.  Price response of herd off-take under market liberalization in a developing cattle sector: panel analysis applied to Kenya's ranching. Abstract

The influence of price, in view of macro-economic policy change and a set of other factors, on herd off-take rates from ranches in Kenya over a period of 17 years was assessed. An AR(1) equation, based on Nerlove's classical dynamic supply model, was derived and fitted to panel data using the Cochrane–Orcutt procedure. Pooling of data was done to circumvent data insufficiency, thereby improving the statistical power of the analysis. Results indicate that price change has had a significant effect on ranch herd off-take, and climatic factors also account for long-run off-take levels.

2005

Boniface; Makau, F; Wellington, N; Ekaya J;, Gathuma M.  2005.  Guidelines For Emergency Livestock Off -take Handbook. AbstractWebsite

Kenya’s agricultural sector accounts for 20–30% of the gross domestic product (GDP). Of this, the livestock sector alone makes a contribution of about 50%. Thus, livestock contributes heavily to the GDP and food security of its population. It also provides the necessary thrust for other forms of development in the country. Recent statistics indicate that currently over 50% of the country’s livestock population is based in the arid and semi-arid lands (ASALs), which form about 80% of the country’s land area. However, comparative international statistics show that livestock contributes 88% of the total agricultural output in Botswana even though the country has half Kenya’s livestock population and is of less agricultural potential. Thus, there is a huge potential contribution that livestock can make to the Kenyan national economy. Unfortunately, this sector receives only 10% of the government’s agricultural expenditure and less than one per cent of total spending, yet it is estimated that Kenya’s potential to export livestock products if adequately exploited would earn more than the earnings from tea and coffee combined. This then calls for new thinking about livestock development strategies to harness the arid landsThe livestock sector accounts for 90% of employment and more than 95% of household incomes in the ASALs. Most of the livestock slaughtered in major urban centres originates in these areas, with an annual slaughter of about 1.6 million Tropical Livestock Units. Kenya’s livestock from the ASALs is worth Kshs 60 billion (US$800 million). The internal livestock trade in trade in thepastoral areas alone nets in about 6 billion shillings (US$80 million )a yearIn the arid areas of the ASALs, arable crop production is not possible without some form of irrigation; while in semi-arid areas rainfall may be sufficient for certain types of crops, requiring special management techniques. Therefore, except for the areaunder cropping, the rest of the arid areas is used for livestock.......

2004

M, PROFNYARIKIDICKSON.  2004.  Farah, K.O., Nyariki, D.M., Ngugi, R.K., Noor, I.M. & Guliye, A.Y. (2004). The Somali and the camel: Ecology, management and economics. The Anthropologist, 6(1), 45-55. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2004.  Nashon K.R. Musimba, Dickson M. Nyakiri, Charles K. Ikutwa and Tegegne Teka; (2004). . Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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R., PROFMUSIMBANASHONK, M PROFNYARIKIDICKSON.  2004.  Bariagabre, S.A. R.K, Ngugi, N.R. Musimba and D.M Nyakiri (2004). Chemical composition and feed value of spiny and spineless Cacti (opuntia) to livestock. Bull Anim. Health production in Africa, 198-202. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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2003

M, PROFNYARIKIDICKSON.  2003.  Nyariki, D.M. & Kironchi, G. (2003). . Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Wasonga, V.O., Ngugi, R.K., Nyariki, D.M., Kironchi, G. and Njoka, T.J. (2003). Effect of Balanites glabra canopy cover on grass production, organic matter and soil moisture a southern Kenyan rangeland. African Journal of Range & Forage Science, 20(2). Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Araya M.R., Ngugi, R.K., Musimba, N.K.R. and Nyariki, D.M. (2003). Feeding value of Acacia tortilis pods in goats. Indian Journal of Animal Sciences, 73(7), 826-828. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Araya M.R., Ngugi, R.K., Musimba, N.K.R. and Nyariki, D.M. (2003). Effect of Acacia tortilis pods on intake, digestibility and nutritive quality of goat diets in south-western Eritrea. African Journal of Range & Forage Science, 20(1), 59-62. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Farah, K.O., Nyariki, D.M., Noor, A.A., Ngugi, R.K. & Musimba, N.K. (2003). The socio-economic and ecological impacts of small-scale irrigation schemes on pastoralists and drylands in northern Kenya. Journal of Social Sciences, 7(4), 267-274. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Musimba, N.K.R. & Nyariki, D.M. (2003). Development of and policy on the range and pastoral industry: with special reference to Kenya. The Anthropologist, 5(4), 261-267. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Njoka, T.J., Muriuki, G.W., Reid, R.S. & Nyariki, D.M. (2003). The use of sociological methods to assess land-use change: A case study of Lambwe Valley, Kenya. Journal of Social Sciences, 7(3), 181-185. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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R., PROFMUSIMBANASHONK, M PROFNYARIKIDICKSON.  2003.  Araya,MR Ngugi,RK Musimba NKR and Nyariki DM(2003). Effect of acacia. Acacia tortilis pods on intake, digestibility and nutritive quality of goat diets in south-western Eritrea. African Journal of Range forage science 20 (i), 59-62. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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R., PROFMUSIMBANASHONK, M PROFNYARIKIDICKSON.  2003.  Araya, MR Ngugi, RK, Musimba, NKR and Nyariki, DM (2003). Feeding value of Acacia tortilis pods in goats. Indian Journal of Animal Sciences, 73(7), 826-828. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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R., PROFMUSIMBANASHONK, M PROFNYARIKIDICKSON.  2003.  Farah, KO, Nyariki, DM Norr, AA, Ngugi, RK & Musimba, NKR (2003). The Socio- Economic and ecological impacts of small-scale irrigation schemes on Pastoralists and drylands in northern Kenya. Journal of soil Sciences, 7(4), 27-274. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2003.  Musimba, NKR & Nyariki, D.M.(2003). Development of any policy on the range and pastoral industry: with special reference to Kenya. The Anthropologist, 5(4), 261-267. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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R., PROFMUSIMBANASHONK, M PROFNYARIKIDICKSON.  2003.  Musimba, NKR & Nyariki, D.M. (2003). Development of and policy on the range and pastoral industry: with special reference to Kenya. The Anthropologist, 5(4),261-267. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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2002

M, PROFNYARIKIDICKSON.  2002.  Gebremichael, M., Kironchi, G., Nyariki, D. & Biamah, E. (2002). . Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2002.  Haagsma, B., Nyariki, D. and Kironchi, G. (2002). . Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2002.  Nyariki, D.M. & Ngugi, R.K. (2002). A review of African pastoral production systems: Approaches to their understanding and development. Journal of Human Ecology, 13(6), 237-250. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2002.  Nyariki, D. & others, E. (2002). Managing dryland resources: An extension manual for Eastern and Southern Africa. IIRR, Nairobi, ISBN 9966-9705-2-5. 214pp. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2002.  Nyariki, D.M., Wiggins, S.L. & Imungi, J.K. (2002). Levels and causes of household food and nutrition insecurity in dryland Kenya. Ecology of Food and Nutrition, 41(2), 155-176. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2002.  Nyariki, D.M. & Musimba, N.K. (eds.) (2002). . Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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2001

Nyariki, DM;, Kironchi G, Ogara WO;.  2001.  Food Security In Rural Development. Website
M, PROFNYARIKIDICKSON.  2001.  Nyariki, D.M. (2001). . Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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M, PROFNYARIKIDICKSON.  2001.  Musimba, N.K.R., Nyariki, D.M. & Mutungi, E.M. (2001). The socio-economics, culture and ecology of bee keeping among the Akamba community of southern Kenya. Journal of Human Ecology, 12(4), 207-216. Geology, Geochemistry and Economic Mineral Potential. Ph.D. Thesis, McGill University, Montreal, 147 pp.. : Philosophical Issues Invoked by Shona People Abstract
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