Biodiversity Conservation and Sustainable Livelihoods in Rangelands: Trends, Challenges and Opportunities

Rangelands cover about 54% of the earth’s surface and are essential for agricultural and livestock production, environmental protection and the in-situ conservation of genetic resources. Despite providing services that support life on earth, rangelands have been neglected to a large extent when compared to other types of ecosystems. This paper provides an overview of the importance of rangelands in conserving biodiversity and supporting the livelihoods of millions of people globally. Rangelands have lost ecological integrity due to unsustainable anthropogenic land-use changes and impacts. It is estimated that over 80% of Key Biodiversity Areas (KBAs) are either not adequately protected or not protected at all. The rangeland ecosystems constitute over 43% of KBAs covered by terrestrial protected areas globally. The biodiversity-agriculture nexus show that Agriculture is the leading driver of global land-use changes and biodiversity loss, accounting for up to 80 per cent of biodiversity loss, up to one-third of greenhouse gas emissions, and use up to 70 per cent of freshwater (UN 2021). Policy agents and investors should prioritise the sustainable utilisation of rangeland ecosystem goods and services to ensure that the issues of degradation, biodiversity loss and climate change are addressed globally. Investment in landscape restoration interventions to improve ecosystem services such as pollination, better water quality or soil fertility must become issues of high priority in rangelands

Rationalization and Harmonization of Seed Policies and Regulations in Eastern and Central Africa: Effecting Policy Change through Private Public Partnerships

Cereal grains are important staple foods in Africa but yields are still too low at 1.5 tons per ha for maize while compared with a global average of 4.5 tons per ha. This can be partly attributed to limited development of commercial seed markets, low use of improved seeds, small and highly fragmented seed markets. Many released varieties are not widely disseminated due to closed national markets dominated by a few international companies and parastatals, and restrictive laws, regulations and policies. Transactions costs within and across national boundaries are high because of differing arrangements across countries. Establishment of common regulatory structures is expected to reduce transactions costs and promote increased trade and hence use of improved seeds. This paper describes the process, results, experiences and lessons learned in developing and operationalizing a seed trade harmonization system in eastern and central Africa. It is clear that the public-private partnerships can play a pivotal role in catalyzing, facilitating and supporting the establishment, development and strengthening of national and regional seed trade. By building partnerships and wide participation, the project was able to apply lessons learned from older to newer countries. The technical, political and legislative processes in the policy-change-cycle are equally important and optimal outcomes must be based on trade-offs between technical issues and interests of the stakeholders.Seeds, harmonization, public-private partnerships, eastern Africa, Crop Production/Industries, Q18, Q19,

Striving for Higher Impacts in Agricultural Research and Development

Over the years, substantial investments in agricultural research have been made in sub-Saharan Africa. The few studies on research investments show impressive returns that are comparable to those achieved in developed countries. However, problems such as recurrent hunger, poverty, food insecurity and natural resource degradation continue to plague the region. Agricultural development arena is changing rapidly toward non-linear innovation systems of complex actor networks and multiple sources of innovations characterized by dynamic and iterative learning processes that constantly inform, renew and advance the state of the systems. Most actors and institutions are not linked effectively often from imaginary boundaries created by prescribed mandates and parochial interests. While more investments in research and development are required for the region, it is becoming increasingly difficult to justify them in the wake of competing needs in the face of shrinking national budgets. The few impact assessments that have been carried out in the region have been incidental and not linked to the research planning cycle implying that lessons from previous research efforts are not used when planning for subsequent research and development efforts. We are proposing impact orientation to track impact to the attainment of institutional and overall development goals. This calls in part for impact assessment to be made an integral part of planning, monitoring and evaluation along with appreciation of the impact chain and actors involved in the innovation process to demonstrate relevance to development goals and thus justify funding.Research and Development/Tech Change/Emerging Technologies,

Food price rises: global smiles, regional frowns?

COLLECTIVE ACTION NEWS is a periodical e-publication of the CGIAR’s Regional Collective Action in Eastern and Southern Afric

SPATIAL ANALYSIS OF SOIL FERTILITY MANAGEMENT USING INTEGRATED HOUSEHOLD AND GIS DATA FROM SMALLHOLDER KENYAN FARMS

Although soil fertility is recognized as a primary constraint to agricultural production in developing countries, use of fertilizer in Sub-Saharan Africa is declining. Smallholder farmers still rely heavily on livestock manure for soil fertility management. To explore the determinants of soil fertility management practices, including both the use of cattle manure and inorganic fertilizer, data are used from a sample of 3,330 geo-referenced farm households across Central and Western Kenya. A bivariate probit model is applied to jointly examine the use of the two technologies. Particular attention is given to measures of location related to market access and agroclimate, which in the adoption literature have typically been addressed using crude proxies. To avoid such proxies, GIS-derived variables are integrated into the household decision model. Their use also allows the spatial prediction of uptake based on parameter estimates. The results show clearly the derived-demand nature of soil fertility services, based on markets for farm outputs. They also illustrate that supply of manure for soil fertility amendments is conditioned by demand for livestock products, especially milk. The integration of GIS-derived variables is shown to better estimate the effects of location than the usual measures employed, and offers scope to wider use in technology adoption research.spatial analysis, soil fertility, market access, technology adoption., Farm Management, Land Economics/Use, Q12, Q16,

Factors influencing farmer-to-farmer extension of forage legume technology

Forage legumes have been introduced to farmers in Central Kenya between 1980 and 2002 through various Institutional and Projects’ efforts. The adoption rate of these forages among farmers has been found to be rather low, with the NDDP reporting only 1.9 % of farms surveyed and an ICRAF report indicating that the technology was only reaching 1 % of smallholder farms. An evaluation of adoption of Calliandra and Desmodium was conducted to identify farm characteristics affecting the likelihood of sharing of Desmodium and Calliandra technologies as well as to characterise the spread or diffusion of the technology from the original contact groups and the effect of distance from those groups. Three groups of farmers were approached. A first generation who received planting material from the distributors, a second generation who received planting materials from the former, and a randomly selected group of farmers at various distances from the first contacts. Informal discussions were held with the farmers and formal questionnaires filled. Out of the 133 first generation farmers contacted 64.7% still had Desmodium and 89.5% still had Calliandra. More farms in the contact sub-locations had the plants than the sub-locations further away. The small sample size of those with the forages could not allow effect of distance to be worked out. Tobit estimates of effects of farmer attributes influencing sharing of planting materials shows that the status of the household head in the community positively affected the likelihood of giving out planting material. The technology has a rather slow spread as indicated by percentages of farms with the forages. For better adoption and spread proponents of the technology should have the technology introduced to farmers who have substantial positions in farmer groups or have been bestowed community responsibility

Establishment of Adult Reference Values For Some Biochemical Analytes in A Rwandan Population

Objectives: To establish the reference values for some routinely performed biochemical analytes in CHUK.Design: Cross-sectional descriptive study.Settings: National Center for Blood Transfusion, Rwanda and Kigali University Teaching Hospital,  Laboratory Department. This study was conducted during the period between 15th September 2014 and 23rd February in 2015.Subjects: Blood donors donating blood at National Center for Blood Donation, and recruited by mobile teams across the country.Results: Median (Reference values:2.5th and 97.5th percentiles) for male and female respectively: Bilirubin Direct,3.9(2-6.9) and 3.9(2.6-6.5) μmol/L; Bilirubin Total,10.3(4.8-21.6) and 10.4(5.9-17.3) μmol/L; Aspartate Aminotransferase, 27.8(16.1-49.2) and 26.7(16.8-45.1) U/L;Urea,3.2(1.3-5.8) and 3.1(1.4-5.2)mmol/L; Glucose, 5.0(3.2-7.7) and 4.6(3.1-6.7) mmol/L; Total Proteins, 76.8(68.2-87.7) and 76.9(66.6-85.7)g/L; Albumin, 46.4(39.7-55.5) and 46.7(40-54.5) g/L; Alanine Aminotransferase,  17.1(7.2-36.2) and 16.0(7.3-33.9) U/L; Gamma Glutamyltransferase, 20.3(8-75.6) and 21.1(7.1-63.3) U/L; Alkaline Phosphatase, 74.3(43.8-145.7) and 73.5(50.3-135.4) U/L; Creatinine, 84.4(65.2- 107.1) and 81.1(62.5-98.6) μmol/L; Sodium, 139.0(134.5-145.5) and 141.0(134.5-146.5) mmol/L; Potassium, .4.4(3.7-5) and 4.3(3.5-5.0) mmol/L; Chloride, 95.7(89.9-104.2) and 99.3(90.6-103.1) mmol/L;  Magnesium, 0.9(0.7-1.0) and 0.9(0.7-1) mmol/L; Phosphate, 1.1(0.8-1.5) and 1.2(0.7-1.6) mmol/L.Conclusion: The results of our study on Clinical Chemistry parameters are similar to those published in other African countries, with variations due to the diet and geographical location. This study has shown that a strict adherence to reference ranges developed from industrialised countries could qualify many healthy Rwandans as pathological cases, and also exclude them from participating in clinical trials. Compared to other reference ranges established, reference values in our study presented remarkably low levels of urea which may be due to the diet low in proteins generally in Rwandan population