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Dieudonne Alemagi
World Agroforestry (ICRAF), West and Central Africa Regional Office, Yaoundé P. O. Box 16317, Cameroon

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Journal article
Published: 29 July 2021 in Sustainability
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Cocoa agroforests sustain ecosystem services (ESs) to varying degrees. These services are otherwise mostly provided by other non-cocoa shade or companion trees. However, the density of shade trees is associated with services and/or disservices that drive farm-specific tree management successions. Considering the growing impacts of climate crisis on farm productivity and the need for adaptation strategies, the ESs are increasingly provisional and contingent on the prevailing vegetation, land tenure, and management successions, amongst others social and ecological factors. To assess the temporal changes in shade management, we surveyed an age gradient of “family farms” in cocoa agroforests created from forest (fCAFS) and savannah (sCAFS) land cover. We evaluated the temporal changes in farm structure, relative tree abundance, and live aboveground biomass of the major canopy strata. We used a spatial point process and linear mixed effect analysis to assess the contributions of associated perennial trees (AsT) on farm rejuvenation patterns. The density of cocoa trees was inconsistent with farm age; this was significantly high on farms in sCAFS (1544 trees ha1) with spatially random configuration across farm age. On farms in fCAFS, we observed a transition of the cocoa tree configuration in the order regular, random, and clustering from young (with highest density of 1114 trees ha1) to old farms. On a temporal scale, there is no clear distinction of farm structure and biomass between fCAFS and sCAFS. However, the cycle of tree species and structural composition of the canopy strata are dissimilar; the live biomass allocation for the considered use groups of tree species was different with farm age. The observed dynamics in canopy tree structure and live biomass provide insights into farmers’ temporal allocation of uses and prioritization of different tree species with farm age. We recommend the consideration of such landscape-specific, tree management dynamics in proposing on-farm tree conservation incentives. Our results are also conducive to reliable estimates of the ecosystem services from CAFS in the national implementation of conservation mechanisms such as REDD+.

ACS Style

Frederick Numbisi; Dieudonne Alemagi; Ann Degrande; Frieke Van Coillie. Farm Rejuvenation-Induced Changes in Tree Spatial Pattern and Live Biomass Species of Cocoa Agroforests in Central Cameroon: Insights for Tree Conservation Incentives in Cocoa Landscapes. Sustainability 2021, 13, 8483 .

AMA Style

Frederick Numbisi, Dieudonne Alemagi, Ann Degrande, Frieke Van Coillie. Farm Rejuvenation-Induced Changes in Tree Spatial Pattern and Live Biomass Species of Cocoa Agroforests in Central Cameroon: Insights for Tree Conservation Incentives in Cocoa Landscapes. Sustainability. 2021; 13 (15):8483.

Chicago/Turabian Style

Frederick Numbisi; Dieudonne Alemagi; Ann Degrande; Frieke Van Coillie. 2021. "Farm Rejuvenation-Induced Changes in Tree Spatial Pattern and Live Biomass Species of Cocoa Agroforests in Central Cameroon: Insights for Tree Conservation Incentives in Cocoa Landscapes." Sustainability 13, no. 15: 8483.

Journal article
Published: 01 January 2018 in Ecology and Society
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Duguma, L. A., J. Atela, A. Negassa Ayana, D. Alemagi, M. Mpanda, M. Nyago, P. Minang, J. Nzyoka, D. Foundjem-Tita, and C. Ndjebet. 2018. Community forestry frameworks in sub-Saharan Africa and the impact on sustainable development. Ecology and Society 23(4):21. https://doi.org/10.5751/ES-10514-230421

ACS Style

Lalisa A. Duguma; Joanes Atela; Alemayehu N. Ayana; Dieudonne Alemagi; Mathew Mpanda; Moses Nyago; Peter A. Minang; Judith M. Nzyoka; Divine Foundjem-Tita; Cécile Ngo Ntamag-Ndjebet. Community forestry frameworks in sub-Saharan Africa and the impact on sustainable development. Ecology and Society 2018, 23, 1 .

AMA Style

Lalisa A. Duguma, Joanes Atela, Alemayehu N. Ayana, Dieudonne Alemagi, Mathew Mpanda, Moses Nyago, Peter A. Minang, Judith M. Nzyoka, Divine Foundjem-Tita, Cécile Ngo Ntamag-Ndjebet. Community forestry frameworks in sub-Saharan Africa and the impact on sustainable development. Ecology and Society. 2018; 23 (4):1.

Chicago/Turabian Style

Lalisa A. Duguma; Joanes Atela; Alemayehu N. Ayana; Dieudonne Alemagi; Mathew Mpanda; Moses Nyago; Peter A. Minang; Judith M. Nzyoka; Divine Foundjem-Tita; Cécile Ngo Ntamag-Ndjebet. 2018. "Community forestry frameworks in sub-Saharan Africa and the impact on sustainable development." Ecology and Society 23, no. 4: 1.

Journal article
Published: 03 July 2014 in International Journal of Agricultural Sustainability
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ACS Style

Dieudonne Alemagi; Lalisa Duguma; Peter A. Minang; Fredrick Nkeumoe; Mireille Feudjio; Zac Tchoundjeu. Intensification of cocoa agroforestry systems as a REDD+ strategy in Cameroon: hurdles, motivations, and challenges. International Journal of Agricultural Sustainability 2014, 13, 187 -203.

AMA Style

Dieudonne Alemagi, Lalisa Duguma, Peter A. Minang, Fredrick Nkeumoe, Mireille Feudjio, Zac Tchoundjeu. Intensification of cocoa agroforestry systems as a REDD+ strategy in Cameroon: hurdles, motivations, and challenges. International Journal of Agricultural Sustainability. 2014; 13 (3):187-203.

Chicago/Turabian Style

Dieudonne Alemagi; Lalisa Duguma; Peter A. Minang; Fredrick Nkeumoe; Mireille Feudjio; Zac Tchoundjeu. 2014. "Intensification of cocoa agroforestry systems as a REDD+ strategy in Cameroon: hurdles, motivations, and challenges." International Journal of Agricultural Sustainability 13, no. 3: 187-203.

Journal article
Published: 11 September 2013 in Journal of Sustainable Development
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This paper examines the degree to which public participation in concession-based forestry decision-making - as outlined by the Environmental Impact Assessment (EIA) Decree (No. 2005/0577/PM)-is taking place in eight forest-dependent communities of Cameroon. Of the total respondents that took part in the survey, only 39 per cent stated that they were involved in decisions concerning concession-based forestry. Furthermore, there seems to be a generally negative perception on the part of local communities towards the government’s implementation of public participation legislation in concession-based forestry decision-making. Obstacles to public decision-making process are identified and recommendations are proffered for more effective public participation.

ACS Style

Dieudonne Alemagi; Reem Hajjar; Zac Tchoundjeu; Robert Kozak. Cameroon’s Environmental Impact Assessment Decree and Public Participation in Concession-Based Forestry: An Exploratory Assessment of Eight Forest-Dependent Communities. Journal of Sustainable Development 2013, 6, p8 .

AMA Style

Dieudonne Alemagi, Reem Hajjar, Zac Tchoundjeu, Robert Kozak. Cameroon’s Environmental Impact Assessment Decree and Public Participation in Concession-Based Forestry: An Exploratory Assessment of Eight Forest-Dependent Communities. Journal of Sustainable Development. 2013; 6 (10):p8.

Chicago/Turabian Style

Dieudonne Alemagi; Reem Hajjar; Zac Tchoundjeu; Robert Kozak. 2013. "Cameroon’s Environmental Impact Assessment Decree and Public Participation in Concession-Based Forestry: An Exploratory Assessment of Eight Forest-Dependent Communities." Journal of Sustainable Development 6, no. 10: p8.

Journal article
Published: 01 December 2011 in Small-scale Forestry
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Community-based Forest Operations (CFOs) have played a notable role in promoting sustainability within Cameroon’s indigenous forest-dependent communities, but they are fraught with a range of socio-economic and ecological hurdles. As a means of achieving more sustainable forest practices, one possible solution would be for CFOs to adopt forest certification, though various barriers would have to be overcome. Using a number of examples at the regional level, this paper examines the potential benefits and barriers to community forest certification in Cameroon. Specifically, the paper identifies these barriers as legislative and political, economic, and informational in nature. While adoption of forest certification hinges upon what initiatives are employed by CFOs, it is argued that there is also a need for the government of Cameroon to play a leadership role in removing hurdles and promoting the uptake of certification.

ACS Style

Dieudonne Alemagi; Reem Hajjar; Serena David; Robert A. Kozak. Benefits and Barriers to Certification of Community-Based Forest Operations in Cameroon: An Exploratory Assessment. Small-scale Forestry 2011, 11, 417 -433.

AMA Style

Dieudonne Alemagi, Reem Hajjar, Serena David, Robert A. Kozak. Benefits and Barriers to Certification of Community-Based Forest Operations in Cameroon: An Exploratory Assessment. Small-scale Forestry. 2011; 11 (4):417-433.

Chicago/Turabian Style

Dieudonne Alemagi; Reem Hajjar; Serena David; Robert A. Kozak. 2011. "Benefits and Barriers to Certification of Community-Based Forest Operations in Cameroon: An Exploratory Assessment." Small-scale Forestry 11, no. 4: 417-433.

Journal article
Published: 30 September 2007 in Resources Policy
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While the oil industry along the Atlantic coast of Cameroon has made important contributions to the national economy, this has been accompanied with adverse environmental impacts. There has been significant pollution from oil drilling, refinery waste, oil spillage, gas and flaring. After discussing these impacts, this paper argues that prevailing regulations are inadequate and need overhauling. It proposes that cleaner production requires:

ACS Style

Dieudonne Alemagi. The oil industry along the Atlantic coast of Cameroon: Assessing impacts and possible solutions. Resources Policy 2007, 32, 135 -145.

AMA Style

Dieudonne Alemagi. The oil industry along the Atlantic coast of Cameroon: Assessing impacts and possible solutions. Resources Policy. 2007; 32 (3):135-145.

Chicago/Turabian Style

Dieudonne Alemagi. 2007. "The oil industry along the Atlantic coast of Cameroon: Assessing impacts and possible solutions." Resources Policy 32, no. 3: 135-145.

Article
Published: 01 September 2006 in Corporate Social Responsibility and Environmental Management
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The deleterious impact of industrial activities on safety health and environmental quality has motivated industries to adopt environmental management systems (EMSs). This paper examines the implementation of EMSs in industries that interact with the Atlantic coast of Cameroon, which has been plagued with effluents emanating from industrial activities. Through a questionnaire based survey that was conducted from January 2005 to June 2005 with all the industries along the Atlantic coast of Cameroon, this paper seeks to address the motivating factors, implementation hurdles and benefits accrued by these industries as a result of implementing EMSs. Although enormous benefits have been accrued as a result of EMS implementation, a plethora of hurdles still persist in the realm of EMS implementation in these industries. Against this background, this paper concludes by prescribing a number of recommendations that could be used to promote the implementation of EMSs in industries that interact with the Atlantic coast of Cameroon. Copyright © 2006 John Wiley & Sons, Ltd and ERP Environment.

ACS Style

Dieudonne Alemagi; Pius M. Oben; Jürgen Ertel. Implementing environmental management systems in industries along the Atlantic coast of Cameroon: drivers, benefits and barriers. Corporate Social Responsibility and Environmental Management 2006, 13, 221 -232.

AMA Style

Dieudonne Alemagi, Pius M. Oben, Jürgen Ertel. Implementing environmental management systems in industries along the Atlantic coast of Cameroon: drivers, benefits and barriers. Corporate Social Responsibility and Environmental Management. 2006; 13 (4):221-232.

Chicago/Turabian Style

Dieudonne Alemagi; Pius M. Oben; Jürgen Ertel. 2006. "Implementing environmental management systems in industries along the Atlantic coast of Cameroon: drivers, benefits and barriers." Corporate Social Responsibility and Environmental Management 13, no. 4: 221-232.