Acknowledgements

Thanks to project collaborators and co-authors, John Samuel, Clemens Fehr and Mark Brewer, to project coordinator Melissa Harvey, and Sammy Carsan, Simon Choge, George Muthike, Andrew Muita and Samuel Nabea for their work in Kenya. This publication is an output from a research project funded by the United Kingdom Department for International Development (DFID) for the benefit of developing countries. The views expressed are not necessarily those of DFID. R8510 Forestry Research Programme.