Oliver Vivian Wasonga

Oliver Vivian Wasonga
University of Nairobi | UON · Department of Land Resource Management & Agricultural Technology

PhD Dryland Ecology and Pastoral Livelihoods (www.oliverwasonga.info)

About

84
Publications
53,023
Reads
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1,297
Citations
Citations since 2016
50 Research Items
1167 Citations
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2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
2016201720182019202020212022050100150200
Additional affiliations
January 2006 - April 2020
University of Nairobi
Position
  • Senior Lecturer
Description
  • Senior Lecture & Researcher, University of Nairobi. Over 19 years of experience.
January 2000 - July 2019
University of Nairobi
Position
  • Lecturer
Description
  • Dryland Ecology; Pastoralist Livelihoods; Climate Change Adaptation; Resilience; Wildlife Conservation; Ethnobotany; Fodder Value Chain; Food Security; Pastoral Livestock Marketing
Education
September 2005 - August 2009
University of Nairobi
Field of study
  • Range Management

Publications

Publications (84)
Article
Full-text available
Agroforestry is one of the key sustainable land management practices recommended for the drylands that are characterized by a myriad of problems among them land degradation that is exacerbated by climate change. Adoption of agroforestry practices has largely remained low and largely unexplained especially in drylands of Kenya. Socio-economic factor...
Article
Full-text available
Pastoralism is globally recognized as the backbone of the economy in the vast arid and semi-arid rangelands. Despite its enormous economic contribution, the system is facing a myriad of challenges, among them, land use and land tenure changes, resulting in diminished grazing land. Accompanying such changes is the conversion of traditional grazing l...
Article
Full-text available
Many activities from livestock husbandry contribute to emission and concentration of carbon dioxide (CO 2 ), nitrous oxide (N 2 O) and methane (CH 4 ) gases to the atmosphere; activities such as grazing, manure and urine deposited or stored on land as well as crop farming practices such as tilling, burning of biomass or crop residues. A better unde...
Conference Paper
Full-text available
Pastoralism is the main economic activity in the massive drylands of Kenya, consisting over 70% of the countries' livestock population. It employs 90% of communities living the arid and semi-arid parts of the country. Although few small-scale livestock markets exist in rural pastoral areas, most of the animals end up in the urban markets with peak...
Technical Report
Full-text available
COVID-19 is a defining moment for strengthening drought resilience of society and managing ecosystems more sustainably. Both recent and historical experiences indicate that disease outbreaks very often follow extreme weather events. Drought, combined with other ecosystem changes such as habitat degradation, preceded the COVID-19 outbreak and has be...
Article
Full-text available
Livestock production in arid and semi-arid areas is an important source of household food and income. Selling or buying of livestock and their products is important among pastoral communities who derive their source of livelihoods from livestock production. This study sought to determine factors that influence the initial decision of pastoral commu...
Article
Full-text available
This study assessed the perceptions and attitudes of the communities living in the fringes of the Falgore Game Reserve (FGR) in Kano, Nigeria towards the protected area conservation approach. Multistage sampling technique which comprises of purposive and random sampling technique were used for the study. The data were analysed using descriptive, ch...
Article
Full-text available
Abstract Livestock export from Somaliland to the Arabian Peninsula countries is an important economic activity and the main source of Somaliland’s foreign exchange earnings. We have employed multiple regression time series analysis of secondary data to understand factors that influence the monthly volumes of small ruminants (sheep and goats) and ca...
Article
Full-text available
Background The arid and semi-arid lands experience inherently unpredictable rainfall and frequent droughts, which are exacerbated by climate change. This consequently leads to deterioration of land resources, and eventually forage and water shortages that negatively impact livestock productivity. In Kenya, development and government agencies have b...
Article
Full-text available
The semi-arid Lokere and Lokok catchments in northeastern Uganda are experiencing land use andland cover (LULC) change driven by policies and actions aimed at pastoralist sedentarisation. Whilethese efforts present a trajectory of a landscape dominated by farming, livestock herding or grazingpersists. The objective of this study was to project medi...
Article
Full-text available
This article argues that brokers are key actors in the cross-border livestock trade between Kenya and Somalia, where formal regulations are weak or absent. We elucidate the economic and social rationales for livestock brokerage as well as a series of brokering practices taking place at the intersection of profit making, kinship and trust. Besides p...
Preprint
Full-text available
Background The arid and semi-arid lands are affected inherently by unpredictable rainfall and frequent droughts, which are exacerbated by climate change. This has resulted in deterioration of land resources, leading to forage and water shortages that negatively impact on livestock productivity. To cope with these climatic hazards that affect agricu...
Preprint
Full-text available
Background: The arid and semi-arid lands experience inherently unpredictable rainfall and frequent droughts, which are exacerbated by climate change. This consequently leads to deterioration of land resources, and eventually forage and water shortages that negatively impact livestock productivity. In Kenya, development and governments agencies have...
Preprint
Full-text available
Background: The arid and semi-arid lands experience inherently unpredictable rainfall and frequent droughts, which are exacerbated by climate change. This consequently leads to deterioration of land resources, and eventually forage and water shortages that negatively impact livestock productivity. In Kenya, development and government agencies have...
Article
Many community groups in rural Africa malfunction or collapse after external support has ended. The use of non-consultative and non-contextual approaches in the establishment and evaluation of community groups has been associated with limited understanding of group functionality. This paper uses the perspectives of group members to identify social...
Article
Full-text available
Context Stratified cattle production (SCP) systems, which involve buying lean animals from pastoral areas and fattening them in locations that have better production conditions, are re-emerging in Kenya’s drylands. Aims This study investigated how pastoralists in the drylands of Kenya endeavour to fulfil cattle marketing requirements under the SCP...
Article
Full-text available
In Africa’s pastoral production systems, the body condition of livestock declines during the dry season when grazing resources become scarce, resulting in lean animals that fail to meet terminal market requirements and therefore fetch low prices. In Kenya, stratified livestock production (SLP) systems in which cattle are purchased from pastoral are...
Article
Full-text available
Livestock production is the most important economic activity in Kenya. Land use practice in arid and semi-arid lands (ASALs) of Kenya is most affected by droughts, which lead to pasture scarcity. Fodder production has been adopted by communities in ASALs to enhance feed availability and generating alternative source of livelihood. However, the scal...
Article
Full-text available
The Lokere and Lokok Catchments, which form the mainwatershed in the semiarid Karamoja sub-region of Uganda, are experiencing land use and land cover (LULC) change from extensive livestock production to crop agriculture. This paper assessed the change in LULC in the Catchments during the period 1984-2013 through unsupervised and supervised classifi...
Article
Full-text available
The Kapir Catchment, which is the main watershed in the semiarid Karamoja sub-region of Uganda, is experiencing land use and land cover (LULC) change from extensive livestock production to crop agriculture. This paper assessed the change in LULC in the Catchment during the period 1984-2013 through unsupervised and supervised classification of satel...
Article
Full-text available
This study estimates the economic contribution of grazing management practices in pastoral systems by specifically undertaking an economic analysis of pastoralists’ preferences for grazing management practices and the economic value pastoralists place on them. The study applied the discrete choice experiment technique using a D-optimal design, a mu...
Article
Full-text available
Soil properties contribute to the widely recognised resilience of semiarid areas. However, limited attention has been given in providing a scientific basis of how semiarid soil properties in the various land covers occur and how they influence forage quantity. is study investigated the influence of different soil properties and land cover types on...
Article
Full-text available
Abstract: Long-term changes in rangeland ecosystems of the world have impacted on the livestock production, a key livelihood strategy in these areas. This paper presents perceptions of the pastoral community on the dynamics of pastoral livelihoods under three land-use types namely nomadic, semi-nomadic, and sedentary in Amboseli ecosystem located i...
Article
Full-text available
Fodder production has been regarded as one of the suitable strategies for increasing feed availability for enhanced livestock production among pastoral and agro-pastoral communities in the drylands of Kenya. Previous studies indicate that factors determining participation in these practices vary from time to time and from one location to another. T...
Conference Paper
Full-text available
Economic potential of cattle production in pastoral areas of Kenya is constrained by limited market outlet for lean animals especially during dry seasons. Since the year 1999/2000, when a severe drought was experienced, there has been an emergence of stratified forms of cattle production in which the lean animals are purchased from the pastoral are...
Article
Full-text available
Whereas there is abundance of information on community groups that engage in income generation in rural agricultural and peri-urban areas, information on community groups in pastoral areas still remains scarce. However, in the recent past, a growing trend of such groups has been observed in the pastoral areas in northern Kenya. This study therefore...
Article
Full-text available
Seasonal fluctuations in forage availability in African drylands significantly affect the body condition of pastoral livestock. The result is lean animals that, besides falling short of market requirements, often fetch low prices for producers. In Kenya's pastoral areas, stratified cattle production (SCP) systems in which animals are transferred fr...
Conference Paper
Full-text available
Fodder production has increasingly become important among pastoral and agro-pastoral communities in Kenya. A number of pasture production technologies have been introduced to these communities not only to enhance availability of livestock feeds in dry periods but also to boost their income from sale of hay and grass seed. Only scanty information ha...
Article
Full-text available
IntroductionMulti-temporal land-use and land-cover data provides a historical vehicle for determining and evaluating long-term trends in bio-physical landscapes. Land-use and land-cover assessment and mapping is one of the most useful applications of geographic information system (GIS) for planning, management, and development. This study analyses...
Article
Full-text available
Introduction: In the recent decades, there has been growing interest in the contribution of non-timber forest products (NTFPs) to livelihoods, development, and poverty alleviation among the rural populace. This has been prompted by the fact that communities living adjacent to forest reserves rely to a great extent on the NTFPs for their livelihoods...
Article
Full-text available
Background Grazing is an important management tool for maintaining healthy ecosystems and improving rangelands productivity. However, its effectiveness for this purpose is dependent on timing and frequency of grazing, as well as the type of animal. Understanding the effects of grazing management on rangeland ecosystems is critical in ensuring susta...
Article
Full-text available
Resource changes observed in rangeland ecosystems have triggered a myriad of ecological, social and economic dynamics, often with adverse implications on pastoral livelihoods. This study applied an integrated approach using local knowledge and spatial technologies to assess the long-term changes in pastoral resources and their implications to pasto...
Conference Paper
Full-text available
This study is an attempt to unpack the existing link between climate change and food security in the East Africa Community (EAC) region. Specifically, the paper elaborates the main issues in climate change discourse and its implication to the food security equation. A plethora of empirical literature exists in the area of climate change not only at...
Conference Paper
Full-text available
Climate change and variability is perhaps one of the major challenges facing the world today. There is an equivocal agreement that climate change is not only a threat to the economies of developing world, but also to those of the developed countries. One of the key drivers of global warming is the greenhouse gas (GHG) emissions. Even though several...
Article
Full-text available
A study was conducted to determine the association of climate variability, Prosopis juliflora spread, and other vegetation trends with livestock population dynamics in Kajiado County, Kenya. Monthly rainfall, mean monthly temperatures, cattle, sheep and goats populations from January 2000 to December 2014, were analyzed to determine time series tre...
Article
Full-text available
Pastoral households are increasingly practising fodder production in response to forage scarcity associated with land degradation, climate variability and change. Understanding the grass seed value chain is a prerequisite for developing sustainable fodder production and guiding appropriate out-scaling in the drylands. This study investigated the pr...
Technical Report
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The county government of Isiolo, Kenya, faces a significant challenge – to maximise the value of local services, including those already provided by the ecosystem under conditions of increasing climate variability and change. This report describes a research approach to support this endeavour, exploring the development of a generic profile of the c...
Article
Full-text available
There has been a tendency for pastoral households of northern Kenya to fall into and remain permanently trapped in poverty, while a few households have managed to escape poverty under certain circumstances. This study looks at how poverty levels among households in pastoral Counties of Turkana and Mandera have changed over the last twenty years. A...
Article
Full-text available
Low input pastoral production systems rely exclusively on natural forage resources in space and time. Information on the abundance and diversity of such pastures is vital in improving livestock production and managing the biodiversity of grazing landscapes. This study documented grass and browse forage species utilised in pastoral Karamoja, and det...
Article
Full-text available
The enclosure system is an increasingly popular approach for land rehabilitation among communities inhabiting the arid and semi-arid lands in Africa. However, the mixed results associated with its adoption by households call for an in-depth understanding of the management regimes. This study was conducted in Chepareria ward in West Pokot County to...
Article
Full-text available
Low-input pastoral production systems provide up to 90 % of livestock and livestock products consumed in Uganda. However, pastoral communities are increasingly faced with the challenge of meeting their livestock needs in terms of forage, a situation exacerbated by climatic variability. The study identified the patterns of forage availability and qu...
Article
Full-text available
The adoption and adaptation of enclosures in the arid and semi-arid rangelands of sub-Saharan Africa is driven and sustained by a combination of factors. However, reviews indicate that these factors cannot be generalized, as they tend to be case specific. A study was therefore conducted to explore the history and reasons for enclosure establishment...
Article
Full-text available
As competition for land and water resources intensifies, there is a growing need to re-evaluate the comparative social and environmental advantages of extensive pastoral production systems. Nine studies of hard-to-reach pastoral areas in Ethiopia and Kenya reaffirm that the true value of pastoral systems is largely overlooked. Camel milk, goat meat...
Article
Full-text available
This study highlights drought characteristics and the many responses to drought stresses employed by Turkana pastoralists of northwestern Kenya. Multiple data sources, including socioeconomic interviews with 302 households, focus group discussions, and informal interviews with pastoralists were used to capture various aspects of drought and drought...