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Forest cover has deteriorated less in Central Africa than in West Africa. The cocoa cultivation practised in West Africa, after felling of the forest, has contributed to the destruction of that cover. Unlike West Africa, cocoa cultivation in Southern Cameroon (Centaral Africa) is done by smallhol...


Sonwa, D.J.Weise, S.F.Ndoye, O.Janssens, M.J.J.[Initiatives endogenes d'intensification et de diversification a l'interieur des agroforets-cacao au Sud-Cameroun: lecons pour une foresterie participative dans les systemes a base de cultures perennes en Afrique centrale et de l'Ouest]Initiatives endogenes d'intensification et de diversification a l'interieur des agroforets-cacao au Sud-Cameroun: lecons pour une foresterie participative dans les systemes a base de cultures perennes en Afrique centrale et de l'Ouest

Cocoa-producing countries of West and Central Africa experienced a serious economic crisis in the early 1980s, when the cocoa sector was liberalized and the macroeconomic policies of the sector changed. These institutional changes created new difficulties and challenges for sustainable cocoa farm...


Sonwa, D.J.Weise, S.F.Adesina, A.A.Nkongmeneck, B.A.Tchatat, M.Ndoye, O.[Production constraints on cocoa agroforetry systems in West and Central Africa: the need for integrated pest management and multi-institutional approaches]Production constraints on cocoa agroforetry systems in West and Central Africa: the need for integrated pest management and multi-institutional approaches

This study determined the structure of cocoa plantations along a continuous gradient of market access, population density and resource use intensity in the humid forest zone of southern Cameroon. The study area comprises the sub-regions of Yaoundé, Mbalmayo, and Ebolowa. Market access, population...


Sonwa, D.J.Weise, S.F.Nkongmeneck, B.A.Tchatat, M.Janssens, M.J.J.[Structure of cocoa agroforest of Southern Cameroon]Structure of cocoa agroforest of Southern Cameroon
Agboka, K.Ayodele, M.Bandyopadhyay, RanajitBeed, Fen D.Boons, P.Chikoye, D.Coulibaly, O.Coyne, D.L.Dubois, T.Emechebe, A.Gnanvossou, D.Goergen, Georg E.Gold, C.S.Hanna, R.Hauser, S.Hell, K.Herron, C.M.Hughes, Jacqueline d'ArrosJames, B.Kooyman, C.Lema, A.K.Legg, J.P.Mwangi, M.Nankinga, C.Neuenschwander, P.Nolte, C.Norgrove, L.Offei, S.Okech, S.Onzo, A.Ragama, P.E.Tamo, M.Tindo, M.Toko, M.Tripathi, L.Vayssières, Jean-FrançoisWeise, S.F.Wendt, J.Zannou, I.[Project B: developing plant health management options]Project B: developing plant health management options

In low-input land-use systems combining timber trees with shade-tolerant understorey crops, it is essential to establish the effects of tree density upon weeds and the contribution of weeds to competition and nutrient cycling. Adjusting tree density may alter weed competition for light, water and...


Norgrove, L.Hauser, S.Weise, S.F.[Response of Chromolaena odorata to different tree densities in a tropical agrisilvicultural system. Aboveground biomass production, partitioning, decomposition and nutrient release]Response of Chromolaena odorata to different tree densities in a tropical agrisilvicultural system. Aboveground biomass production, partitioning, decomposition and nutrient release

Understanding how novel microbes enter into the human population is perhaps the fundamental goal of the study of emerging infectious diseases (EID). The frequency at which microbes will emerge is determined by the diversity of microbes present in the environment, the level of contact between a po...


Wolfe, N.Eitel, M.Gockowski, J.Muchal, P.Nolte, C.Prosser, A.Torimiro, J.Weise, S.F.Durke, D.[Deforestation, hunting and the ecology of microbial emergence]Deforestation, hunting and the ecology of microbial emergence

Weekly captures from January 2000 to January 2002 enabled us to study the abundance and life cycle of the variegated grasshopper, Zonocerus variegatus (Orthoptera: Pyrgomorphidae), in the humid forest zone of Southern Cameroon. We found that Z. variegatus was present throughout the year in the fo...


Messi, J.Kekeunou, S.Weise, S.F.[Abundance and life cycle of Zonocerus variegatus (Orthoptera: Pyrgomorphidae) in the humid forest zone of southern Cameroon]Abundance and life cycle of Zonocerus variegatus (Orthoptera: Pyrgomorphidae) in the humid forest zone of southern Cameroon

The influence of weeds community composition and dynamics on groundnuts intercropped with cassava was assessed in three different short fallow management systems, in the Forest Margins Benchmark Area of southern Cameroon (Central Africa). Fallow management intensities, indicated through differi...


Ngobo, M.Weise, S.F.Mc Donald, M.[Influence of fallow landuse intensity on weed dynamics and crop yield in southern Cameroon]Influence of fallow landuse intensity on weed dynamics and crop yield in southern Cameroon
Akoroda, M.O.Amegbeto, K.Asiedu, RobertAttey, A.N.Baah, F.Bakam, I.Bandyopadhyay, RanajitBoivin, M.Boons, P.Cornet, D.Coyne, D.L.David, S.Dixon, A.Dumet, D.Ezedinma, C.Gockowski, J.Goergen, Georg E.Gyamfi, I.Hanna, R.Halos-Kim, L.Hauser, S.Hughes, J.Kikuno, H.Kolesnikova-Allen, M.Legg, C.Legg, J.P.Lema, A.Lemchi, J.Lokko, Y.Makinde, K.Mahungu, N.M.Maroya, N.G.Maziya-Dixon, B.B.Mkumbira, J.Mva Mva, J.Mwangi, M.Nguimgo, B.Nielsen, O.Nkamleu, G.B.Nolte, C.Norgrove, L.Ogbe, F.Okafor, C.Okechukwu, R.Okoro, E.Patino, M.Sanni, L.O.Shiwachi, H.Ssemakula, G.N.Tarawali, G.Tenkouno, A.Tindo, M.Toko, M.Weise, S.F.Wendt, J.Yapo Assamoi, A.[Program E: Enhancing livelihoods in the humid and subhumid zones of West and Central Africa through profitable and sustainable intensification of diverse agricultural systems]Program E: Enhancing livelihoods in the humid and subhumid zones of West and Central Africa through profitable and sustainable intensification of diverse agricultural systems

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