2007. Pastoral sedentarization, natural resource management and livelihood diversification in Marsabit District, Northern Kenya: Surviving Pastoral Decline. The Edwin Mellen Press, Wales, UK, co-authored with Karen Witsenburg (2007: in press)

2007. The use and management of water sources in Kenya’s drylands: Is there a link between scarcity and violence conflicts. Oxford: James Currey, p.215-238; with Karen Witsenburg.

2005. Once nomads settle: Assessing process, motives and welfare changes on Marsabit Mountain. In: Fratkin, E. & Roth Eric A. (eds.), As Pastoralists Settle: Social, Health, and Economic consequence in Marsabit District Kenya (Kluwer Academic /Plenum Publishers), with Karen Witsenburg.

2005. Global forest management decisions and local use of forest resources in Kenya: Exploring the Link’, in 'Linking global conservation objectives and local use of forest and wildlife resources', eds. Mirjam Ros, Ton Dietz and Fred Zaal. The Edwin Mellen Press (with Karen Witsenburg, Chapter 7)

2005. Sustainable forests and livelihoods: Romantic illusion or environmental and social necessity? in 'Linking global conservation objectives and local use of forest and wildlife resources', eds. Mirjam Ros, Ton Dietz and Fred Zaal (with Mirjam Ros, Ton Dietz and James Njogu) (Chapter 15).

2003. Global forest management decisions and local use of forest resources in Kenya: Exploring the link. European Tropical Forest Research Network (ETFRN) News, Autumn/Winter 2003, No. 39-40: p.76-77, co-author Karen Witsenburg.

2001. Pastoral commercialisation: On caloric Terms of Trade and related issues. In: M.A. Salih, Ton Dietz and Abdel G. M. Ahmed (eds.) African Pastoralism: Conflict, Institutions and Government. Pluto press in association with OSSREA: p. 194-234, with  Ton, Dietz, A. Arale Nunow, and Fred, Zaal.

2000. Costs and benefits of protected areas: Marsabit Forest Reserve, Northern Kenya. In: Perrings, C. (ed.) Economics of Biodiversity Conservation in Sub-Saharan Africa: Mending the Ark. Edward Elgar, Cheltenham: p.115 -138.

Non-refereed articles

2004. Linking land-use and climatic changes to watershed functions of Marsabit Forest, north Kenya. Paper presented at a seminar session at the International Livestock Research Institute (ILRI), Nairobi-Kenya, 8 - 9 September 2004.

2003. Aligning the global forest management decisions and local use of forest resources in Kenya. Paper presented at “Globalisation, localisation and Tropical Forest Management in the 21st Century”, conference, 22-23 October 2003, Amsterdam, The Netherlands (contribution to a book chapter), jointly with Karen Witsenburg   

2002. Benefits of access and threats to protected areas: Paper prepared for Pugwash Netherlands Workshop held at Institute of Social Studies, The Hague, on 14 May 2002.

1997. Managing crisis and the water market in Northern Kenya. Report for the WOTRO-financed project, “Resource dynamics and Household economics among the pastoral communities of Marsabit District, Northern Kenya”: Eldoret/Amsterdam, Moi University/University of Amsterdam.

Conferences attended/papers presented

2007. Conservation areas, rural livelihoods and human-wildlife conflicts: In search of a compensation mechanism for wildlife damages in Kenya’s dry lands. Paper presented at a Conflict in Kenya’s dry lands meeting held at Silver Springs Hotel, 14-16th May 2007, Nairobi.

2007. The effects of land-use and climate changes on protected areas surrounding Mount Marsabit, Northern Kenya. Paper Abstract presented at Kenya Wildlife Service Conference, “Research Imperatives for Biodiversity Conservation and Management, 18th -20th April 2007, at Safari Park Hotel, Nairobi.

2005. Natural resources and conflicts: theoretical flaws and empirical evidence from Northern Kenya. Paper prepared for a keynote at the Moi University First Annual Conference held 14th - 16th February 2005, Eldoret, Kenya, with Ton Dietz and Karen Witsenburg.

2005. Effects of land cover and climate changes on ecosystems services of Montane Tropical Forest, Kenya. Paper presented at the First DIVERSITAS Open Science Conference: “Integrating biodiversity science for human well-being”, 9 –12 November, 2005, Oaxaca, Mexico.

2005. Pastoral sedentarisation and efforts of wealth accumulation in Marsabit Kenya. Paper presented at African Studies Association (ASA) meeting: “Knowledge, health and body politics”,16 – 21 November 2005, Washington, DC, USA..

2004. Symposium ‘Biodiversity in a Changing World’ organised by the Netherlands Global Change Committee held on 3 June 2004, The Trippenhuis, Amsterdam.

2003. Surviving Pastoral Decline in Marsabit District, Northern Kenya. Paper presented at the International Dryland conference in Narok, Kenya), August 2003. (with Karen Witsenburg). AGIDS/UvA  Working Paper.

2003. Ethnic violence, water scarcity and the governance of resources: A case study from Northern Kenya. A paper presented at CERES Summer-school on “Faces of Poverty” held at the Royal Tropical Institute, Amsterdam, 23 - 26 June 2003, with Karen Witsenburg

1997. Costs and benefits of Marsabit Forest Reserve, Northern Kenya: Preliminary findings. A paper presented at York Initiative7 African Economic Research Consortium (AERC) conference, Grand Regency Hotel, Nairobi, 17 October 1997.