Dr. Till Stellmacher

Research themes
  • Land use and food security
  • Institutions
  • Sustainable use of natural resources
  • Agriculture, land use, climate change
  • Governance and conflict
Research countries
  • Chile
  • Egypt
  • Ethiopia
  • India
  • Kenya
  • Uganda
Professional experience
Bread for the World; Church Development Service (EED)

Master in Geography;

PhD in Agriculture at the Institute for Food and Resource Economics, Bonn


Abdalla, A., M. Becker, T. Stellmacher.  2023.  The Contribution of Agronomic Management to Sustainably Intensify Egypt’s Wheat Production.  Agriculture, 13(5), 978; MDPI, Basel   . (Open Access)   Further Information
Abdalla, A., T. Stellmacher, M. Becker.  2023.  Trends and Prospects of Change in Wheat Self-Sufficiency in Egypt.  Agriculture, 13(1): 7; MDPI, Basel   . (Open Access)   Further Information
Abdalla,A., T. Stellmacher, M. Becker.  2023.  Wheat farmers’ perception of constraints and their adaptive capacity to changing demands in Egypt.  Sustainability, 13(8), 1554; MDPI, Basel   . (Open Access)   Further Information
Habert, G. P., Mora-Motta, A., Stellmacher, T., F. Ther-Ríos.  2023.  Participation and forest protected areas in Chile: Insights from Mapuche and peasant communities. 30, ZEF Working Paper 226, Bonn.  Further Information
Mora-Motta, A., T. Stellmacher, G.P. Habert, and C.H. Zúñiga.  2023.  Zwischen Extraktivismus und Naturschutz: Baumplantagen, Waldreservate und kleinbäuerliche Territorialität in Los Ríos, Chile.  In: Fuders, F., Donoso, P.J. (eds.): Ökologisch-ökonomische und sozio-ökologische Strategien zur Erhaltung der Wälder. Springer, Cham.  


Birungi, D., T. Stellmacher, C. Borgemeister, J. C. J. Groot.  2022.  A Typology and Preferences for Pigeon Pea in Smallholder Mixed Farming Systems in Uganda.  Agriculture, 12(8), 1186; MDPI, Basel   . (Open Access)   Further Information
Jena, P. R., Lippe, R. and T. Stellmacher.  2022.  Sustainable Certification Standards: A Synthesis on the Determinants of Adoption and Socio-economic Impacts.  Frontiers in Sustainable Food Systems, 6:922672, Lausanne, . (Open Access)   Further Information
Mora-Motta, A., T. Stellmacher, M. del Valle Barrera.  2022.  Fundamental Human Needs and socio-ecological transformation: A reflection on participatory action research in a context of tree plantations in Chile.  Special Issue of the International Journal of Sustainable Development (IJSD), No. 1-2, Inderscience Enterprises, Geneva, 25, 1-2   : 53-77   . Further Information


Kamau, J.W., C. Schader, L. Biber-Freudenberger, T. Stellmacher, D. M. Amudavi, J. Landert, J. Blockeel, C. Whitney and C. Borgemeister.  2021.  A holistic sustainability assessment of organic (certified and non-certified) and non-organic smallholder farms in Kenya.  Environment, Development and Sustainability, 24   : 6984–7021   . (Open Access)   Further Information
Seifu, S. and T. Stellmacher.  2021.  Accessibility of public recreational parks in Addis Ababa, Ethiopia: a GIS based analysis at sub-city level.  Urban Forestry & Urban Greening, Volume 67   . Further Information


Diriba, D., Stellmacher, T., Azad, H., Kelboro, G., Lebailly, P.. and M. Ghorban.  2020.  The Impact of Industrial Investments on Land Use and Smallholder Farmers’ Livelihoods in Ethiopia.  Land Use Policy, 99   .
Mora-Motta, A. and T. Stellmacher.  2020.  Tree plantations at the last resource frontiers: Extractivism and territorialisation in southern Chile.  In: Laube, W. and Pereira, A. B. (eds.): 'Civilizing' resource investments and extractivism: Societal negotiations and the rule of law. Lit Verlag.   115-155. 
Mora-Motta, A., Stellmacher, T., Habert, G. P., and C. Henríquez.  2020.  Between extractivism and conservation: Tree plantations, forest reserves, and peasant territorialities in Los Ríos, Chile.  In: Felix Fuders & Pablo J. Donoso (eds.): Ecological economic and socio ecological strategies for forest conservation. A Transdisciplinary Approach Focused on Chile and Brazil. Springer.  


Desta, H., B. Lemma, T. Stellmacher, and E. Gebremariam.  2019.  Water use and management of Lake Ziway and its watershed, Ethiopia: The perception of experts vis-à-vis the latest state of research.  Environment, Development and Sustainability, Springer, : 1-20   .
Kamau, J. W., L. Biber-Freudenberger, J.P.A. Lamers, T. Stellmacher, and C. Borgemeister.  2019.  Soil fertility and biodiversity on organic and conventional smallholder farms in Kenya.  Applied Soil Ecology, 134   : 85-97   .
Kelboro, G., and T. Stellmacher.  2019.  Global Changes in Local Governance of the Commons: The Case of the African Parks Foundation Engagement in Nech Sar National Park, Ethiopia.  In: Haller, T., T. Breu, T. De Moor, C. Rohr, and H. Znoj (eds.): The Commons in a Global World: Global Connections and Local Responses. Abingdon: Routledge.  
Leta, G., Kelboro, G., Van Assche, K., Stellmacher, T., Hornidge, A.-K..  2019.  Rhetorics and realities of participation: The Ethiopian agricultural extension system and its participatory turns.  Critical Policy Studies. Taylor & Francis, .
Stellmacher, T. and G. Kelboro.  2019.  Family Farms, Agricultural Productivity and the Terrain of Food (In)security in Ethiopia.  Sustainability. MDPI, 11(18) 4981   : 165-174   . Review


Anteneh, Y., T. Stellmacher, G. Zeleke, W. Mekuria, E. Gebremariam.  2018.  Dynamics of land change: insights from a three-level intensity analysis of the Legedadie-Dire catchments, Ethiopia.  Environmental Monitoring and Assessment. Springer, 190   : 308-330   .
Basu, A.K., U. Grote, R. Hicks, and T. Stellmacher.  2018.  Multiple Certifications and Consumer Purchase Decisions: a Case Study of Willingness to Pay for Coffee in Germany.  In: Priyanka Parvathi, Ulrike Grote, Hermann Waibel (eds.): Fair Trade and Organic Agriculture: A Winning Combination?. CAB International, Wallingford, UK.   61-67. 
Capote-Fuentes, R.T., U. Grote, L. Byer, and T. Stellmacher.  2018.  Evolution of Producer Organizations in Fair Trade Coffee Certification.  In: Parvathi, P., U. Grote, H. Waibel (eds.): Fair Trade and Organic Agriculture: A Winning Combination?. CAB International, Wallingford, UK.   30-43. 
Jena, P.R., U. Grote, and T. Stellmacher.  2018.  Certifying Coffee Cooperatives in Ethiopia, India and Nicaragua: How Far Do Small-scale Coffee Producers Benefit?.  In: Parvathi, P., Grote, U. and Waibel, H. (eds.): Fair Trade and Organic Agriculture: A Winning Combination?. CAB International, Wallingford, UK.   157-173. 
Kamau, J.W., T. Stellmacher, L. Biber-Freudenberger, and C. Borgemeister.  2018.  Organic and conventional agriculture in Kenya: A typology of smallholder farms in Kajiado and Murang’a counties.  Journal for Rural Studies. Elsevier, 57   : 171-185   .
Legese, G., K. Van Assche, T. Stellmacher, H. Tekleworld, and G. Kelboro.  2018.  Land for food or power? Risk governance of dams and family farms in Southwest Ethiopia.  Land Use Policy. Elsevier, 75   : 50-59   .
Leta, G. G. Kelboro, T. Stellmacher, K. Van Assche, and A.-K. Hornidge.  2018.  Nikinake - the mobilization of labour and skill development in rural Ethiopia.  Natural Resources Forum, United Nations Sustainable Development Journal. Wiley, 42:2   : 93-107   .
Leta, G., T. Stellmacher, G. Kelboro, K. Van Assche, A.-K. Hornidge.  2018.  Social learning in smallholder agriculture: the struggle against systemic inequalities.  Journal of Workplace Learning. Emerald Publishing, 6(30)   : 469-487   . Further Information
Matias, D. M. S., J. A. Tambo, T. Stellmacher, C. Borgemeister, and H. von Wehrden.  2018.  Commercializing traditional non-timber forest products: An integrated value chain analysis of honey from giant honey bees in Palawan, Philippines.  Forest Policy and Economics, 97   : 223-231   .


Diriba, D., T. Stellmacher, F. Senbeta, S. van Passel, and H. Azadi.  2017.  Environmental and health impacts of effluents from textile industries in Ethiopia: the case of Gelan and Dukem, Oromia Regional State.  Environmental Monitoring and Assessment. Springer Publishing, 189   : 11   .
Hayal, D., B. Lemma, and T. Stellmacher.  2017.  Farmers’ awareness and perception of Lake Ziway (Ethiopia) and its watershed management.  Limnologica - Ecology and Management of Inland Waters. Elsevier., 65   : 61-75   .
Leta, G., G. Kelboro, T. Stellmacher, and A.-K. Hornidge.  2017.  The agricultural extension system in Ethiopia: operational setup, challenges and opportunities. ZEF Working Paper 158, Bonn. 
Matias, D.M.S., T. Stellmacher, C. Borgemeister, J. G. Cayron, and H. von Wehrden.  2017.  Mapping giant honey bee nests in Palawan, Philippines through a transdisciplinary approach.  Development in Practice. Taylor Francis. London, 27:7   : 903-912   .


Basu, A., U. Grote, R. Hicks, and T. Stellmacher.  2016.  Multiple Certifications and Consumer Purchase Decisions: A Case Study of Willingness to Pay for Coffee in Germany.The Cornell Working Paper Series 16-17. Charles H. Dyson School of Applied Economics and Management. Cornell University, Ithaca, New York. 
Diriba, D., H. Azadi, F. Senbeta, K. Abebe, F. Taheri, T. Stellmacher.  2016.  Urban sprawl and its impacts on land use change in Central Ethiopia.  Journal of Urban Forestry & Urban Greening. Elsevier, 16   : 132-141   .


Hayal, D., B. Lemma, G. Albert and T. Stellmacher.  2015.  Degradation of Lake Ziway, Ethiopia: A Study on the Environmental Perceptions of School Students.  Lakes and Reservoirs: Research and Management. John Wiley and Sons Publishing, 20   : 243-255   .
Jena, P. R., T. Stellmacher and U. Grote.  2015.  Can coffee certification schemes increase incomes of smallholder farmers? Evidence from Jinotega, Nicaragua.  Environment, Development and Sustainability. Springer, : DOI: 10.1007/s10668-015-9732-0   .
Kelboro, G., and T. Stellmacher.  2015.  Protected areas as contested spaces: Nech Sar National Park, Ethiopia, between ‘local people’, the state, and NGO engagement.  Environmental Development. Elsevier, 16   : 63–75   .
Stellmacher T. (ed).  2015.  Socio-economic Change in Rural Ethiopia. Understanding Local Dynamics in Environmental Planning and Natural Resource Management.  Peter Lang. Frankfurt. Further Information


Stellmacher, T..  2014.  Community-initiated institutions and forest use in Ethiopia. The role of collective working groups, iddir and the elders. Special issue of German Ethiopian Association papers. Issue June 2014. 


Kelboro, G., T. Stellmacher and V. Hoffmann.  2013.  Conservationists’ and ‘Local People’ in Biodiversity Conservation: the Case of Nech Sar National Park, Ethiopia.  Ethiopian Journal of Social Sciences and Humanities, Vol 9, No 1   : 29-55   .
Stellmacher, T. and U. Grote.  2013.  Fairtrade and organic coffee certification: from niche to mainstream.  Coffee: a global success story. BGBM Press, Berlin.   61-63. 
Stellmacher, T. and Z. Tulu.  2013.  From quantity to quality? The socio-economic characteristics of Ethiopian coffee production and export.  Coffee: a global success story. BGBM Press, Berlin.   37-39. 
Stellmacher, T., A. Fasse, J. Garcia-Yi and U. Grote.  2013.  Conserving agrobiodiversity on small-scale farms in developing countries through innovative market-based instruments.  In: A. Christinck and M. Padmanabhan (eds.) (eds.): Cultivate Diversity: A Handbook of Transdisciplinary Approaches to Agrobiodiversity Research. Margraf Publishers.   185-200. 


Aklilu, D. and T. Stellmacher.  2012.  Faith-based Organizations in Ethiopia. The Contribution of the Kale Heywet Church to Rural Schooling, Ecological Balance and Food Security.  Vandenhoek & Ruprecht Unipress. Göttingen.
Collings, L., S. Cook and T. Stellmacher.  2012.  Understanding growing environments for coffee quality.  In: Oberthür, T., Läderach, P., Pohlan J. and J. Cock (eds.): Specialty Coffee – Managing Quality. IPNI SEAP.   78. 
Jena, P.R., B. Beyene, T. Stellmacher and U. Grote.  2012.  The impact of coffee certification on small-scale producers’ livelihoods: a case study from the Jimma Zone, Ethiopia.  Agricultural Economics , 43   : 427-438   .
Stellmacher, T., E. Winter and U. Grote.  2012.  Protected areas in Tanzania: from ineffective management to PA certificates? Proceedings of the Conference on the Human Dimensions of Global Environmental Change. October 5-6, 2012. Berlin. 
Winter, E., D. Roettgers, B. Deutsch and T. Stellmacher.  2012.  An overview of market-based PES aproaches. Carius, F. (ed): Payments for Ecosystem Services. Towards an Implementation Strategy. BfN Skripten 326. Federal Agency for Nature Conservation. Bonn. 
Wissel, S., A. Berghöfer, R. Jordan, S. Oldfield, T. Stellmacher and J. Förster.  2012.  Certification and Labeling.  In: H. Wittmer and H. Gundimeda (eds.): The Economics of Ecosystems and Biodiversity in Local and Regional Policy and Management. Earthscan from Routledge, Abingdon and New York.   273-288. 


Hedden-Dunkhorst, B., M. Lehmann, U. Pascual, T. Stellmacher, E. Winter, A. Berghöfer, J. Blignaut, J. Kronenberg, M. Masiga, M. Todorova, S. Schomers, S. Domptail, S. Mumbunan, F. Carius and H. Gundimeda.  2011.  Payments for Ecosystem Services: Towards their Development and Implementation.  Policy Brief of German Federal Agency for Nature Conservation, 2011   : 1-8   . Further Information


Stellmacher, T. and R. Nolten.  2010.  Institutional change from below: conserving forest by strenthening community-initiated use rights? The case of Bale mountains coffee forests, Ethiopia.  In: Eguavoen I. and W. Laube (eds.): Negotiating Local Governance. Natural Resources Management at the Interface of Communities and the State. Lit Publishing, Berlin.  
Stellmacher, T., P. Jena, B. Nayak and U. Grote.  2010.  The local payoffs of coffee certification. Evidences from smallholder cooperative farmers in Jinotega, Nicaragua. Proceedings to the Conference: Berlin Conference on the Human Dimensions of Global Environmental Change. Berlin, October 8-9, 2010. 
Stellmacher, T., U. Grote and J. Volkmann.  2010.  Protection of biodiversity through certification? Forest coffee in Kaffa and Bench Maji Zone, Ethiopia.  TEEB - The Economics of Ecosystems and Biodiversity for Local and Regional Policy Makers. United Nations Environment Programme.   170. 
Wissel, S., A. Berghöfer, R. Jordan, S. Oldfield and T. Stellmacher.  2010.  Certification and Labelling.  TEEB - The Economics of Ecosystems and Biodiversity for Local and Regional Policy Makers. United National Environment Programme.   161-171. 


Grote, U. and T. Stellmacher.  2009.  Coffee Certification in the International Trade.  Aroma Coffee, 1   : 6-11   .
Stellmacher, T. and P. Mollinga.  2009.  The institutional spere of coffe forest management in Ethiopia. Local level findings from Koma forest in Kaffa zone.  International Journal of Social Forestry, 2 (1)   : 43-66   .


Stellmacher, T.  2008.  Zertifizierung als Instrument zum Schutz von Biodiversität?.  ZEF News No. 20. Special Issue on Biodiversity and Change, ZEF, Bonn, .
Stellmacher, T.  2008.  Prospects and challenges of forest coffee certification in Ethiopia: the need to effectively link economic benefits to biodiversity conservation. Proceedings of the Conference Human Dimensions of Global Environmental Change, Berlin.  Further Information


Stellmacher, T.  2007.  The historical development of local forest governance in Ethiopia. From imperial times to the military regime of the derg.  Afrika Spectrum, GIGA Institute of African Affairs, Hamburg, 42 (3)   : xx-xx   .
Stellmacher, T.  2007.  Das interventionistische Dilemma. Grundprobleme sozialwissenschaftlicher Feldforschung im ländlichen Afrika.  In: Proceedings of the conference: Researching Africa, Bonn, 23-24 June 2007


Stellmacher, T.  2006.  Informal Institutions on Local and Community Level: Property Rights Participatory Forest Management Project.  University of Bonn. Germany.
Stellmacher, T.  2006.  Governing the Ethiopian Coffee forests: a local level institutional analysis in Kaffa and Bale mountains.  Doctoral thesis at  Faculty of Agriculture, University of Bonn. 


Stellmacher, T.  2005.  Institutional factors shaping coffee forest management in Ethiopia. The case of Bonga Forest/Kaffa Zone. Proceedings of the Conference International Trade and the Protection of Natural Resources in Ethiopia. March 5-6, 2005. Berlin.  Further Information

Additionals, Curriculum Vitae
and Downloads

Senior Researcher


Cultural and Political Change


Diese Webseite verwendet Cookies

Diese Website verwendet Cookies – nähere Informationen dazu und zu Ihren Rechten als Benutzer finden Sie in unserer Datenschutzerklärung am Ende der Seite. Klicken Sie auf „Ich stimme zu“, um Cookies zu akzeptieren und direkt unsere Website besuchen zu können.
Read more