Tata epse Ngome Precillia

Company: IRAD

Position: Senior Socio-economics researcher (maitre de recherche)

Expert Summary

With over 23 years of work experience, Precillia is a social science researcher working for the Institute of Agricultural Research for Development (IRAD) as a Senior Socio-economic researcher. Her work focuses on 1) Politics of (Nexus between) Agriculture and Natural Resources; 2) Food Security and Nutrition Sciences 3) Marketing and Value Chain Analysis; 4) Governance and Development; 5) Agricultural Innovations, Innovation Systems and Climate Change. In the field of natural resources, her work has focused on Non Timber Forest Products (NTFPs); natural resource management; fuelwood, forest, people and livelihoods; food security and nutrition; multi stakeholder processes and forest policy and governance. In agriculture, she worked on value chain analysis, marketing, seed system analysis, farmers-graziers conflict, farming and cropping systems, cocao/coffee intensification systems, climate smart agriculture etc. She has also carried out and led large scale studies on baseline and endline surveys and project evaluation studies. Since 2020, she started working more intensively on agricultural innovations and innovation systems and climate change in arid areas. She is verse with quantitative and qualitative research integrating Monitoring & Evaluation and impact evaluation approaches and has interest and experience in Monitoring, Evaluation and Learning (MEL) frameworks. She is a member of the CORAF MEL task force.

Although since 2002 she has been working for IRAD in Cameroon, before and in-between she has served as a consultant for organizations as CRS, AVRDC, IUCN, COMIFAC, The Worldbank, CIFOR, ICRAF, FAO, IITA, STCP etc. Presently, she has over 30 published papers, 2 book chapters, 1 book and more than 60 project completion, consultancy and workshop reports. She also held some post of responsibility in IRAD. From 2011 – 2013 she was head of the socio-economic program and during 2013-2020 she was head of the intensification and diversification programs. From 2016 - 2020, she was appointed as the Sub-Director incharge of the Communication and Documentation Unit of IRAD. Here, she managed the website, IT, telephone, library and internet facilities of the institution. She galvanized this unit and put in place an institutional newsletter called IRADnews.

Precillia has a multidisciplinary academic background and has benefitted from many scholarships. During her PhD in Environmental Science from Rhodes University, South Africa from 2013 – 2016, she was part of the 2014 round of the McNamara Fellowship program.  Between 2007-2008, she studied and obtained an MSc in Governance and Development in Sub-Sahara Africa from Antwerp University, Belgium through the VLIR scholarship program. Before, she studied in the University of Yaoundé II, Cameroon from 2001-2002 obtaining a Post graduate diploma in Economic Policy Management sponsored by a Worldbank through the Africa Capacity Building Foundation (ACBF) program. With brilliant performances from high school, she was privileged to enter the prestigious Faculty of Agronomy and Agricultural Sciences of the University of Dschang Cameroon from 1993-1999 where she obtained the ‘Diplôme D’Ingénieur Agronome’ (Post Graduate Diploma in Agronomy and Agricultural Sciences, specialized in Economics and Rural Sociology). Here, she benefited from the excellency scholarship from the Ministry of Higher Education in Cameroon.


Thesis (04)

1.       The contribution of fruit from trees to improve household nutritional security in the context of deforestation in Cameroon – PhD thesis Rhodes University South Africa (2013-2015);

2.       The Management and restoration of the Kivu Lake watershed: Win-win institutional arrangements for conservation and livelihoods? - Masters thesis Antwerpen University, Belgium (2007-2008);

3.       The formal and informal economy interface in the Non-Timber Forest Products (NTFP) sector: A commodity chain analysis of NTFP Post graduate diploma (DESS) thesis University of Yaounde II, Cameroon (2001-2002) -;

4.       Determinants of fuel wood selling prices in the rural and urban centres of the Far North Province of Cameroon - ‘Ingénieur Agronome’ thesis, University of Dschang, Cameroon (1993-1998).

Peer Reviewed Journal Papers (28)

1.       Kaldjob Mbeh Christian Bernard, Tata Ngome Precillia, Douya Emmanuel, Nso Ngang Andre, Bamou Tankoua Lydie, Simo Brice Herman (2022) Assessment of health hazards and risk perceptions of market garden producers towards the effects of pesticides in Western Region Cameroon. African Journal of Agricultural Research

2.       Simo B.H., Y. Nyingchia Y., C. D. Vaillam, M. Mveme, E-J. Nossi, F. Adama, S. N. Eyenga, U. T. Kiparah, V. P. Nchinda, G. Ntsomboh Ntsefong, P. Tata-Ngome (2021) Inventaire des produits transformés à base de pomme de terre et leur marketing dans la ville de Yaoundé, Cameroun. Journal d’Economie, de Management, d’Environnement et de Droit (JEMED) ISSN 2605-6461 Vol 4. N° 1

3.       Dury S., L. Temple, Tata Ngome P., Syndhia Mathe (2021) Comment la crise du Covid a fragilisé les systèmes alimentaires en Afrique subsaharienne. The Conversation

4.       Tumamo Djuidja, U. H., Nso Ngang, A., Kenfack Essougong, U. P., Kaldjob Mbeh, C. B., Fongang Fouepe, G., Jaza Folefack, A. J., Tata Ngome, P. I. (2021) Effect of Group Dynamics on Teamwork Technical Efficiency in Agriculture: Case of Cocoa Farmers Organization in Biwong-Bulu, South Region of Cameroon. JCCR | Journal of Community & Communication Research, 6(2), 263-272.

5.       Kenfack Essougong, U. P., Maja S., Syndhia M., Wouter V, Tata Ngome P.I., Philippe B.,  Ken E. Giller,  Lotte S. Woittiez and Cees Leeuwis (2020) Farmers’ Perceptions as a Driver of Agricultural Practices: Understanding Soil Fertility Management Practices in Cocoa Agroforestry Systems in Cameroon. Human Ecology. https://doi.org/10.1007/s10745-020-00190-0

6.       Mabah T. G. L., Nyingchia Y. Y., Nso Ngang A., Adama F., Tata-Ngome P. (2020) Ethnic Origin Influence on Urban Households Potato Purchase: Evidence from Yaoundé, Cameroon Journal of Humanities and Social Sciences Studies JHSSS 2(4):213-220

7.       Mafouasson, H.N.A., Kenga, R., Gracen, V. Ntsomboh-Ntsefong, G., Tandzi, L. N, Tata Ngome P. I. (2020) Production Constraints, Farmers’ Preferred Characteristics of Maize Varieties in the Bimodal Humid Forest Zone of Cameroon and Their Implications for Plant Breeding. Agric Res (2020). https://doi.org/10.1007/s40003-020-00463-6

8.       Tata Ngome P., C. Shackleton, A. Degrande (2019) Knowledge and knowledge sources on the importance of fruits for nutritional security are unaffected by deforestation status in Cameroon" Fruits, The International Journal of Tropical and Subtropical Horticulture 74 (6) 272-281 | DOI: 10.17660/th2019/74.6.2 ISSN 0248-1294 print and 1625-967X

9.       Nain C. W., Njoya M. A., Mahbou P. Y., Nde S. N., Imele H., Nambangia J. O., Lendzemo W. V., Tata Ngome P., Woin Noe (2019) Assessing the processing attributes of some potato (Solanum tuberosum L) varieties grown in the North West Region of Cameroon Journal of Food Science & Technology 4(9)p:946-955

10.   Tata Ngome P., C. Shackleton, A. Degrande, Eric Joel Nossi, Francis Ngome (2019) Assessing household food insecurity experience in the context of deforestation in Cameroon. Food Policy https://doi.org/10.1016/j.foodpol.2019.02.003

11.   Billa, S.F., Tsi, E.A., Tchamba, N.M., Ngome, A.F., Tata Ngome, P.I. (2018). Environmental and socio-economic feasibility of Biochar application for cassava production in the bimodal rainfall zone of Cameroon. International Journal of Rural Development, Environment and Health Research 2: 1-9.

12.   Tata Ngome P. I., Afari-Sefa Victor, Ntsomboh-Ntsefong Godswill, Okolle Justin, Billa Samuel Fru, Moma Crescence, Atemkeng Fonji Maureen, Ngome Ajebesone Francis (2018) Investigating strategies for implementing a sustainable vegetable food crop system in three agro ecological zones of the humid tropics area of Cameroon. African Study Monographs, 39 (1): 27 – 46.

13.   Tata Ngome P. I., Shackleton C., Degrande A. and Tieguhong J. C. (2017) Addressing constraints in promoting wild edible plants’ utilization in household nutrition: case of the Congo Basin forest area. Agriculture & Food Security, 6: 20 DOI: 10.1186/s40066-017-0097-5.

14.   Billa S. F., Ngome A. F., T. E. Angwafo and Tata Ngome P. (2017) Waterleaf (Talinum triangulare) response to biochar application in a humid-tropical forest soil Journal of Soil Science and Environmental Management 8(5):95-103.

15.   Nambangia J. Okolle, V. Afari-Sefa, J-C. Bidogeza, P. I. Tata and F. A. Ngome (2016) An evaluation of smallholder farmers' knowledge, perceptions, choices and gender perspectives in vegetable pests and diseases control practices in the humid tropics of Cameroon International Journal of Pest Management doi.org/10.1080/09670874.2016.1184772

16.   Ndo E.D.G., A. Ngatchou, P. I. Tata, C. Mfoumou Eyi and A. Nso Ngang (2016) Contraintes du cadre légal et performance socio-économique des produits forestiers non ligneux au Cameroun., Science et Technique, Spécial hors-série n°3 Lettres, Sciences sociales et humaines page 35-48.

17.   Tata P., C. Mfoumou Eyi, E.G. D. Ndo, A. Ngatchou and Y. Ndoua Zang (2016) Identifications et classification des produits forestiers non ligneux prioritaires selon les utilisations et l’écologie dans la région du sud-ouest Cameroun. Science et Technique Spécial hors-série n°3, Science Naturelle et Agronomie page 23-40.

18.   Batchep M., E. G. D. Ndo, P. I. Tata, A. Awono, C.  Mfoumou Eyi, A. Ngatchou, and J. KENGUE (2016) Opportunités et contraintes de l’exploitation de trois produits forestiers non ligneux prioritaires de la région du Centre- Cameroun. Science et Technique Spécial hors-série n°3 Science Naturelle et Agronomie page 57-70.

19.   Ajambang W. and Tata P. I. (2016) Fruit Crop theft and its impacts on the productivity of oil palm agro-industries in Cameroon. Developing Country Studies 6(5).                                                                                                                                                             

20.   Tata P.I., Afari-Sefa V., Ntsomboh-Ntsefong G., Billa S. F., Ngome A. F. and Okolle J. (2016) Policy and institutional frameworks impacting on vegetable seed production and distribution systems in Cameroon. Journal of Crop Improvement DOI 10.1080/15427528.2016.1141134.

21.   Ngome -Tata P. I., Mveme M., C. Ndikumagenge, Nso Ngang A. (2015) Interface between Local Actors, Livelihoods and Conservation around the Kivu Lake Watershed in the African Great Lakes Region. International Journal of World Policy and Development Studies 2 (2): 7-14.

22.   Ngome A.F., Mepiemfu-Lamare D., Tata P.I. and Suh C. (2015). Assessing biotic and abiotic constraints to upland rice cultivation in Cameroon. Journal of Agriculture and Ecology Research International 33: 33-40.

23.   Tata P.I. and Ndikumagenge C. (2013) Dependency on natural resources: Post-Conflict challenges for livelihoods security and environmental sustainability. Development in Practice 23 (3) 372–388.

24.   Ngome A.F., Amougou M.C.F., Tata-Ngome P.I., Mfopou C., Ndindeng S.A. and Njeudeng T.S. (2013) Effects of cassava cultivation on soil quality indicators in the humid forest zone of Cameroon. Greener Journal of Agricultural Science 3 (6):451- 457.

25.   Tata P. I., Ndikumagenge C., Ngome W. E., Chicaia A. and Tamar R. (2012) Transboundary dialogue and cooperation: First Lessons from igniting negotiations on joint management of the Mayombe forest in the Congo Basin. International Journal of Agriculture and Forestry 2(3): 121-131. http://article.sapub.org/10.5923.j.ijaf.20120203.08.html.

26.   Ngome A.F., Mtei M.K. and Tata P.I. (2012) Mucuna pruriens differentially affect maize yields in three soils of Kakamega District. International Journal of Biological and Chemical Sciences 6: 941-949.

27.   Ngueguim J. R., Dondjang J.P., Onana J., Tata P. I., Zapfack I., Noiha V.N., Kengne O. C. and Momo C.S. (2011) Moabi (Baillonella toxisperma Pierre): Arbre à usage multiple de forêt dense humide du Cameroun. International Journal of Chemical and Biological Science 5 : 2395-2406.

28.   Ngome-Tata P. I., Walter S.,   Ngueguim J. R. (2011) An overview of policy and institutional frameworks impacting the use of non timber forest products in Central Africa. International Journal of Social Forestry (IJSF) 4 (1):64-85.

29.   Ndikumagenge C. and Ngome-Tata P. I. (2009) Quantifying NTFPs: An ITTO-sponsored project helps address the lack of information on non-timber forest products in Central Africa. ITTO Tropical Forest Update 18(4): 3 - 5.


Books /Books chapters (04)

1.       Jeremie Mbairamadji, Gervais Itsoua Madzous, Jean-Claude Nguinguiri, Valérie Tchuente, Donald Djossi, Sédric Edmond Tiobo’o, Tata Ngome Precillia (2022) Intégration des objectifs de développement durable (ODD) à la gestion durable des forêts en Afrique centrale : état des lieux, défis et options d’amélioration chapter 6 dans Eba’a Atyi R, Hiol Hiol F, Lescuyer G, Mayaux P, Defourny P, Bayol N, Saracco F, Pokem D, Sufo Kankeu R et Nasi R. (2022). Les forêts du bassin du Congo : état des forêts 2021. Bogor, Indonésie : CIFOR.

2.       Woin N., Tata Ngome P., Waingeh N. C., Adjoudji O., Nossi E. J., Simo B., Yingchia Y., Nsongang A., Adama F., Mveme M., Dickmi V. C., Okolle J. (2019). Suitability of Different Processing Techniques and Sales Options for Irish Potato (Solanum Tuberusum) Cultivars in Cameroon. FARA Research Report. Volume 4(4): PP 83.

3.       Tata P. I. (2004) Fuelwood in the Maroua area of the Far North Province of Cameroon (Chapter 13) in Terry Sunderland and Ousseynou Ndoye, 2004. Forest Products, Livelihoods and Conservation: Case study of Non-Timber Forest Product systems. Vol. 2 - Africa. CIFOR Indonesia. pp 229-244 http://www.cifor.cgiar.org/publications/pdf_files/Books/NTFPAfrica/TOC-Chapter6.PDF

4.       Tata P. I. (2004) Fuelwood in Cameroon: An energy source from the forest in Citlallie Lopez and Patricia Shanley, 2004. Riches from the forest: For health, life and spirit in Africa. CIFOR Indonesia. pp 65-68. http://www.cifor.cgiar.org/publications/pdf_files/Books/Restution-Africa_case/NTFP-Africa-case-part1.pdf





Year of attendance

Certificate obtained

Field of study

Rhodes University

South Africa

2013 – 2015


Environmental Science

University of Antwerp




Governance and Development in Sub-Sahara Africa

University of Yaoundé II



Post graduate diploma

Economic Policy Management (Gestion des Politiques Economique)


University of Dschang



 ‘Diplôme d’ingénieur agronome’

Economics and Rural Sociology

GHS Mbengwi


1990 – 1992

GCE A/L certificate

Passed in 3 subjects Maths, Chemistry and Biology

GHS Mbengwi /GSS Njikwa



GCE O/L certificate

Passed in nine subjects

GBS Mbengwi


1979 – 1985

First School leaving certificate

Government Common Entrance and First School leaving certificate


Researcher profile

2002-2012 - Research Assistant 2012-2017 - Research Officer 2017 Onwards:  Senior Research Officer (Maître de Recherche)

Major Research outputs for 20 years

02 ongoing projects, 10 large scale surveys, training of enumerators/trainers, and farmers, 32 executed projects, 30 published papers, I book, 2 book chapters and more than 60 project completion, consultancy and workshop reports.

Other organizations in which I have worked

CRS, AIR – USA, ICRAF, Village Aid – UK, TRAFFIC, UNIDO, AVRDC, IUCN - regional, COMIFAC, The Worldbank, MBOSCUDA, CIFOR, FAO Cameroon and Libreville, IITA, STCP, HELPAGE - Rwanda, IFCAE - USA

Administrative profile



Chief of service (2011 – 2020)


Sub-Director (2016-2020)

Chief of Service 2011 – 2013: Head of the Socio-economic research program of IRAD

Chief of service 2013 – 2020: Head of the Intensification and Diversification Research Program.

-                          Supervised more than 30 researchers and technicians on different projects,

-  Main roles included training and mentoring, fund raising, project implementation, staff management, infrastructure and budget management, supervision of young researchers and students, report and publication writing and other administrative roles.

Sub-Director 2016 – 2020: Head of the Communication and Documentation Unit of IRAD. Working with very limited resources, I did the following:

-                          Managed 18 staff, a Cyber hall with atleast 20 visitors a day,

-                          Managed the head office internet supply infrastructure,

-                          Managed the library and other IRAD documentation,

-                          Managed the IRAD telephone network,

-                          Instituted an institutional mailing list with about 700 members,

-   Filtered and shared about 10 emails a week to all staff and other emails to specific groups,

-   Established a monthly newsletter with version 0 in July 2016 and now we have 47 editions,

-   Conceived, printed and distributed the 2017, 2018, 2019 and 2020 institutional calendar and best wishes card, and the 2017 labour day fabric,

-   Restored and face-lifted the IRAD website,

-   Negotiated and established the irad.cm webpage as per the Cameroon government recommendation,

-   Organized a series of events and trainings,

-   Covered most institutional events.

University Lecturer

-   I give lectures in CRESA, Dschang University.

Expertise and Research disciplines

Socio-Economist/Multidisciplinary Social Scientist with focus on:

1) Agriculture/Natural Resource - Policy Nexus;

2) Food Security and Nutrition Science;  

3) Marketing and value chain analysis;  

4) Rural development, Poverty, Livelihoods and Wellbeing Analysis;

5) Governance, Institutions, Coordination, Collaboration and Negotiation processes.