Resultados de búsqueda - "West Africa"

Q&A: Methods for estimating genetic gain in sub-Saharan Africa and achieving improved gains por Dieng, Ibnou, Gardunia, Brian, Covarrubias‐Pazaran, Giovanny, Gemenet, Dorcus C., Trognitz, Bodo, Ofodile, Sam, Fowobaje, Kayode, Ntukidem, Solomon, Shah, Trushar, Imoro, Simon, Tripathi, L., Mushoriwa, Hapson, Mbabazi, Ruth, Salvo, Stella, Derera, John

“…An illustrative example of estimating realized genetic gain was provided by analyzing historical data on fresh cassava (Manihot esculenta Crantz) yield in West Africa (https://github.com/Biometrics‐IITA/Estimating‐Realized‐Genetic‐Gain). …”
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The impact of climate change on African economies and opportunities for agrifood system transformation por Tankari, Mahamadou, Fofana, Ismael

“…For instance, the report on the State of the Climate in Africa in 2022 (WMO 2023) showed that precipitation anomalies were above the 1991–2020 average in northeastern Africa, large parts of West Africa, the eastern Sahel region, Sudan, and parts of South Africa. …”
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Genome-wide mapping uncovers significant quantitative trait loci associated with yam mosaic virus infection, yield and dry matter content in White Guinea yam (Dioscorea rotundata P... por Adjei, E.A., Odong, T.L., Esuma, W., Bhattacharjee, R., Agre, A.P., Adebola, P.O., Chamba, E.B., Asfaw, A., Dramadri, I.O., Mbabazi, S.T., Edema, R., Ozimati, A.A., Ochwo-Ssemakula, M., Alicai, T.

“…Introduction: Yam is an important crop for food security in East and West Africa due to its high market value and customer demand. …”
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Conflict, aspirations, and women’s empowerment: Household survey evidence from farmer-herder conflicts in Nigeria por Amare, Mulubrhan, Carrillo, Lucia, Kosec, Katrina, Kyle, Jordan

“…We analyze geo-coded data on violent clashes between ethnic groups that primarily herd livestock for their livelihood and those that primarily farm crops; these clashes are growing more frequent across West Africa with climate-induced land degradation, as herding populations are moving further south in search of grazing land. …”
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When school overlaps with farming: Measuring reduced educational advancement and simulating solutions in Africa por Allen IV, James

“…For example, many countries in West Africa start school in late September or early October, as did the French school calendar, though this is just before the harvest. …”
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Evaluating the impact of climate variability and water hazards on vector-borne disease patterns to develop early warning signals por Jampani, Mahesh, Amarnath, Giriraj

“…The current research highlights the impacts of climate change with case studies from Senegal in West Africa on malaria prevalence and Sri Lanka in South Asia on dengue prevalence. …”
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Spatial analysis and risk mapping of Crimean-Congo hemorrhagic fever (CCHF) in sub-Saharan Africa por Ilboudo, Abdoul K., Oloo, Stephen O., Sircely, Jason, Nijhof, A.M., Bett, Bernard K.

“…The risk map generated shows that CCHF occurrence risk is higher in arid and semi-arid land (ASAL) of West Africa, the Sahelian region, Central Africa, and the Eastern and Southern Africa region. …”
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Migration in rural Burkina Faso por Wouterse, Fleur Stephanie

“…Burkina Faso, whose conditions for agriculture are far from favorable, has a long history of migratory movement, and migration within West Africa has long taken place in response to drought and low agricultural productivity. …”
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Development and adaptation of RIICE tool for Cote d'Ivoire por Mathieu, Renaud, Dossou-Yoyo, Eliott, Holecz, Francisco, Murusegan, Deiveegan, Quicho, Emma, Satapathy, Sushree, Akpoffo, Marius, Gatti, Luca, Ouedraogo, Mathieu

“…Further upscaling and refinement of the tool will contribute to data-driven agricultural management and climate adaptation efforts in West Africa.…”
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The unequal effects of resettlement in Coastal Regions: An intersectional vulnerability analysis of resettled fisher communities in Saint Louis, Senegal por Renkamp, Theresa Marie, Reine, Hane Marie, Jaquet, Stéphanie, Medina, Leonardo, Bonatti, Michelle, Sieber, Stefan

“…The coast of West Africa is particularly affected by coastal erosion and inundation as a result of sea-level rise. …”
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Controlling banana bunchy top disease in Benin: Crop protection strategies with socio‐economic perspectives por Retkute, Renata, Zandjanakou‐Tachin, Martine, Omondi, Bonaventure Aman, Agoi, Ulrich Roland, Vodounou, Yaovi Marc, Akofodji, Hermine, Akpla, Evrard, Dossou, Laurence, Médénou, Emiline, Etchiha, Alban, Attadéou, Alphonse, Kumar, P. Lava, Thomas, John E., Gilligan, Christopher A.

“…Societal Impact Statement Banana and plantain are vital for food security and income in West Africa, yet banana bunchy top virus (BBTV) threatens production. …”
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L'analyse de cernes: applications aux études de croissance de quelques essences en peuplements naturels de forét dense africaine por Detienne, P., Oyono, F., Durrieu de Madron, L., Demarquez, B., Nasi, Robert

“…This report describes the methodology used for growth ring analysis, the application of such analysis for each tree species, as well as a synthesis of the results obtained for the main species exploited in Central and West Africa. The following species are included: Ayous/Samba (Triplochiton sideroxylon), Sapelli (Entandrophragma cylindricum), Limba/Fraké (Terminalia superba), Sipo (Entandrophragma utile), Tali (Erythrophleum ivorense), Tiama (Entandrophragma angolensis), Kosipo (Entandrophragma candollei), Okoumé (Aucoumea klaineana) and Moabi (Baillonella toxisperma). …”
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Predicting alpha diversity of African rain forests: models based on climate and satellite-derived data do not perform better than a purely spatial model por Parmentier, I., Harrigan, R.J., Buermann, W., Mitchard, E.T.A., Saatchi, S., Malhi, Y., Bongers, F., Hawthorne, W.D., Leal, M.E., Lewis, S.L., Nusbaumer, L., Sheil, Douglas, Sosef, M.S.M., Affum-Baffoe, K., Bakayoko, A., Chuyong, G.B., Chatelain, C., Comiskey, J.A., Dauby, G., Doucet, J.L., Fauset, S., Gautier, L., Gillet, J.F., Kenfack, D., Kouamé, F.N., Kouassi, E.K., Kouka, L.A., Parren, M.P.E., Peh, K.S.H., Reitsma, J.M., Senterre, B., Sonke, B., Sunderland, Terry C.H., Swaine, M.D., Tchouto, M.G.P., Thomas, D., Valkenburg, J.L.C.H. van, Hardy, Olivier J.

“…Our aim was to evaluate the extent to which we can predict and map tree alpha diversity across broad spatial scales either by using climate and remote sensing data or by exploiting spatial autocorrelation patterns in tropical rain forest, West Africa and Atlantic Central Africa.…”
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Sensitive and specific detection of Trypanosoma vivax using the polymerase chain reaction por Masake, R.A., Majiwa, Phelix A.O., Moloo, S.K., Makau, J.M., Njuguna, J., Maina, M., Kabata, J.M., Ole-MoiYoi, O.K., Nantulya, V.M.

“…Oligonucleotide primers were designed based on the nucleotide sequence of the 832-bp cDNA insert and used in amplifying DNA sequences from the blood of cattle infected with T. vivax isolates from West Africa, Kenya, and South America. The polymerase chain reaction (PCR) product of approximately 400 bp was obtained by amplification of DNA from all the isolates studied. …”
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Chemical composition, rumen degradation, and gas production characteristics of some multipurpose fodder trees and shrubs during wet and dry seasons in the humid tropics por Larbi, Asamoah, Smith, Jimmy W., Kurdi, I.O., Adekunle, I.O., Raji, A.M., Ladipo, D.O.

“…Seasonal variations in chemical composition, dry matter (DM) and nitrogen (N) degradation and gas production characteristics of 18 multipurpose trees and shrubs (MPTs) from the humid lowlands of West Africa were evaluated. The MPTs have potential for the development of integrated crop and livestock agroforestry technologies in the region. …”
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Groundnut (Arachis hypogaea) for food and fodder in crop-livestock systems: Forage and seed yields, chemical composition and rumen degradation of leaf and stem fractions of 38 cult... por Larbi, Asamoah, Dung, D.D., Olorunju, P.E., Smith, Jimmy W., Tanko, R.J., Muhammad, I.R., Adekunle, I.O.

“…Forage and seed yields of groundnut (Arachis hypogaea) are considered to be joint products by crop-livestock farmers, but forage yield and quality are not currently part of selection criteria in groundnut improvement programs in West Africa. Variations in forage and seed yields of 38 late-maturing groundnut cultivars were determined in 1995 and 1996 at Samaru, Zaria, northern Nigeria. …”
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Capacity building in EcoHealth: Experiences and evaluation of training using a "learning by doing" approach, within academic and non-academic contexts por Gilbert, Jeffrey

“…EcoHealth initiatives are active in Southeast Asia, West Africa and Latin America, - mostly supported by the Canadian International Development Research Centre. …”
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Identification, validation and high-throughput genotyping of transcribed gene SNPs in cassava por Ferguson, Morag E., Hearne, Sarah Jane, Close, T.J., Wanamaker, S., Moskal, W.A., Town, C.D., Young, J. de, Marri, P.R., Rabbi, Ismail Y., Villiers, Etienne P. de

“…A diversity assessment of 53 cassava varieties reveals some sub-structure based on the geographical origin, greater diversity in the Americas as opposed to Africa, and similar levels of diversity in West Africa and southern, eastern and central Africa. …”
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Grain legume impacts on soil biological processes in Sub-Saharan Africa por Lupwayi, N.Z., Kennedy, AC, Chirwa, Rowland

“…The major crops are cowpea (Vigna unguiculata L.), which is grown on about 11 million hectares mostly in West Africa, and common bean (Phaseolus vulgaris L.), grown on about 5 million hectares mostly in eastern and southern Africa. …”
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Origin and management of neotropical cassava arthropod pests por Bellotti, Anthony C., Braun, Ann R., Arias, B., Castillo Franco, J.A., Guerrero, J.M.

“…Cassava originated in the neotropics; it was introduced into West Africa from Brazil by slave traders in the 1500's, and taken to Asia during the 17th century. …”
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