Presently, Senior Lecturer, Department of Land Resource Management and Agricultural Technology, University of Nairobi, and Consultant with International Centre for Tropical Agriculture (CIAT).

Interests: Agroecology, Soil biodiversity Conservation and associated Ecosystem Services, Conservation Agriculture, Soil Organic Matter Dynamics in Agroecosystems. Currently serving in GSBI Scientific Advisory Committee, and a Lead author with Intergovernmental Panel on Biodiversity and Ecosystem Services (IPBES).

Previous research involvement: FAO/TSBF/ICRAF (2011-2013), UNEP-GEF Project initiative on Below-ground Biodiversity (BGBD) (2003-2010), SIDA funded Lake Victoria Research Initiative (VicRes) Project (2004-2012), and GLIDE-IBOY Project (2002-2003).

Fellow: Swedish Institute (SI) Post Doc Visiting Researcher, SLU, Sweden (2014-2015), PhD WOTRO/NWO-Wageningen, the Netherlands (2006-2010) and NORMAN BORLAUG Fellow (2008).

He has published over 20 journal papers, book chapters and conference proceedings in diverse and multi-disciplinary topics.

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