Skip to main content
Log in

Planning tree species diversification in Kenya based on differences in tree species composition between farms. I. Analysis of tree uses

  • Published:
Agroforestry Systems Aims and scope Submit manuscript

Abstract

Concerns exist about the limited diversity of tree species in agricultural landscapes. Complete tree inventories were carried out on 201 farms from four villages in western Kenya to establish whether significant differences in tree species composition existed between farms, and if so their magnitude and implications for new introductions and plantings. Tree species composition was interpreted to encompass elements of both tree identity and abundance. Tree identity was viewed from both taxonomic and function (e.g. fruit, timber, medicine) perspectives. Novel types of ordination using the Hellinger ecological distance and polynomial Redundancy Analysis indicated wide heterogeneity between farms with respect to tree species composition. For the 12 most prevalent functions of trees, the analyses showed significant differences (p<0.05). Partitioning of variance identified that village location explained much of the differences between farms suggesting that farmers share tree species within villages more than between villages. Differences between farms were assessed on two-dimensional ordination graphs. For five important tree functions, including beverage, charcoal, construction, fodder and medicine, two species dominated the compositional differences. For these functions, diversification can be achieved by village-to-village sharing even in the absence of any new species introductions. A general process to determine the degree of tree diversity at farm and landscape levels and steps to increase it are discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • W.M. Adams R. Aveling D. Brockington B. Dickson J. Elliott J. Hutton D. Roe B. Vira W. Wolmer (2004) ArticleTitleBiodiversity eradication and the eradication of poverty Science 306 1146–1149 Occurrence Handle15539593 Occurrence Handle1:CAS:528:DC%2BD2cXpsF2ktLg%3D Occurrence Handle10.1126/science.1097920

    Article  PubMed  CAS  Google Scholar 

  • M.J. Anderson P. Legendre (1999) ArticleTitleAn empirical comparison of permutation methods for tests of partial regression coefficients in a linear model J. Stat. Comput. Simul. 62 271–303

    Google Scholar 

  • K. Atta-Krah R. Kindt J.N. Skilton W. Amaral (2004) ArticleTitleManaging biological and genetic diversity in tropical agroforestry Agroforest. Syst. 61 183–194 Occurrence Handle10.1023/B:AGFO.0000028998.32732.65

    Article  Google Scholar 

  • H.J. Beentje (1994) Kenya Trees, Shrubs and Lianas National Museums of Kenya Nairobi 722

    Google Scholar 

  • D. Borcard P. Legendre P. Drapeau (1992) ArticleTitlePartialling out the spatial component of ecological variation Ecology 73 1045–1055 Occurrence Handle10.2307/1940179

    Article  Google Scholar 

  • P.N. Bradley N. Chavangi A. Gelder ParticleVan (1985) ArticleTitleDevelopment research and energy planning in Kenya Ambio 14 228–236

    Google Scholar 

  • J.M. Bouvet C. Fontaine H. Sanou C. Cardi (2004) ArticleTitleAn analysis of the pattern of genetic variation in Vitellaria paradoxa using RAPD markers Agroforest. Syst. 60 61–69 Occurrence Handle10.1023/B:AGFO.0000009405.74331.74

    Article  Google Scholar 

  • S. Di Falco C. Perrings (2003) ArticleTitleCrop genetic diversity, productivity and stability of agroecosystems. A theoretical and empirical investigation Scott. J. Polit. Econ. 50 207–216 Occurrence Handle10.1111/1467-9485.5002006

    Article  Google Scholar 

  • A. Dorward N. Poole J. Morrison J. Kydd I. Urey (2003) ArticleTitleMarkets, institutions and technology: missing links in livelihoods analysis Dev. Policy Rev. 21 319–332 Occurrence Handle10.1111/1467-7679.00213

    Article  Google Scholar 

  • D.P. Garrity (2004) ArticleTitleAgroforestry and the achievement of the Millennium Development Goals Agroforest. Syst. 61 5–17 Occurrence Handle10.1023/B:AGFO.0000028986.37502.7c

    Article  Google Scholar 

  • J.E. Gordon W.D. Hawthorne G. Sandoval A.J. Barrance (2003) ArticleTitleTrees and farming in the dry zone of southern Honduras II: the potential for tree diversity conservation Agroforest. Syst. 59 107–117 Occurrence Handle10.1023/A:1026360205113

    Article  Google Scholar 

  • D.I. Jarvis L. Myer H. Klemick L. Guarino M. Smale A.H.D. Brown M. Sadiki B. Sthapit T. Hodgkin (2000) A training guide for in situ conservation on farm. Version 1 International Plant Genetic Resources Institute Rome 161

    Google Scholar 

  • Jongman R.H., Braak C.J.F.t. and Van Tongeren O.F.R. 1995. Data Analysis in Community and Landscape Ecology. Cambridge University Press, Cambridgepp. 299xxi+

  • Kindt R. and Lengkeek A.G. 1999. Tree diversity on farm – use it or lose it. In: National workshop on agricultural biodiversity conservation, 27–29 January 1999, Nairobipp. 75–85. Intermediate Technology Development Group (ITDG).

  • R. Kindt A.J. Simons P. Damme ParticleVan (2004) ArticleTitleDo farm characteristics explain differences in tree species diversity among western Kenyan farms? Agroforest. Syst. 63 63–74

    Google Scholar 

  • M. Kristensen H. Balslev (2003) ArticleTitlePerceptions, use and availability of woody plants among the Gourounsi in Burkina Faso Biodivers. Conserv. 12 1715–1739 Occurrence Handle10.1023/A:1023614816878

    Article  Google Scholar 

  • R.R.B. Leakey A.J. Simons (1998) ArticleTitleThe domestication and commercialization of indigenous trees in agroforestry for the alleviation of poverty Agroforest. Syst. 38 165–176 Occurrence Handle10.1023/A:1005912729225

    Article  Google Scholar 

  • P. Legendre E.D. Gallagher (2001) ArticleTitleEcologically meaningful transformations for ordination of species data Oecologia 129 271–280 Occurrence Handle10.1007/s004420100716

    Article  Google Scholar 

  • P. Legendre L. Legendre (1998) Numerical Ecology Elsevier Science BV Amsterdam 853

    Google Scholar 

  • J. Long E. Cromwell K. Gold (2000) On-farm Management of Crop Diversity: An Introductory Bibliography Overseas Development Institute for ITDG London 42

    Google Scholar 

  • M. Loreau S. Naeem P. Inchausti J. Bengtsson J.P. Grime A. Hector D.U. Hooper M.A. Huston D. Raffaelli B. Schmid D. Tilman D.A. Wardle (2001) ArticleTitleBiodiversity and ecosystem functioning: current knowledge and future challenges Science 294 804–807 Occurrence Handle11679658 Occurrence Handle1:CAS:528:DC%2BD3MXotVCitLw%3D Occurrence Handle10.1126/science.1064088

    Article  PubMed  CAS  Google Scholar 

  • J.A. McNeely (2004) ArticleTitleNature vs. nurture: managing relationships between forests, agroforestry and wild biodiversity Agroforest. Syst. 61 155–165 Occurrence Handle10.1023/B:AGFO.0000028996.92553.ea

    Article  Google Scholar 

  • V. Makarenkov P. Legendre (2002) ArticleTitleNonlinear redundancy analysis and canonical correspondence analysis based on polynomial regression Ecology 83 1146–1161 Occurrence Handle10.1890/0012-9658(2002)083[1146:NRAACC]2.0.CO;2

    Article  Google Scholar 

  • I. Mathsoft (1999) S-Plus 2000 User’s Guide MathSoft Inc Seattle 558xii

    Google Scholar 

  • J. Norberg D.P. Swaney J. Dushoff J. Lin R. Casagrandi S.A. Levin (2001) ArticleTitlePhenotypic diversity and ecosystem functioning in changing environments: a theoretical framework Proc. Natl. Acad. Sci. 98 11376–11381 Occurrence Handle11535803 Occurrence Handle1:CAS:528:DC%2BD3MXnt1yqtbk%3D Occurrence Handle10.1073/pnas.171315998

    Article  PubMed  CAS  Google Scholar 

  • G.A. O’ Neill I.K. Dawson C. Sotelo-Montes L. Guarino D. Current M. Guariguata J.C. Weber (2001) ArticleTitleStrategies for genetic conservation of trees in the Peruvian Amazon basin Biodivers. Conserv. 10 837–850 Occurrence Handle10.1023/A:1016644706237

    Article  Google Scholar 

  • R.H. Økland (1996) ArticleTitleAre ordination and constrained ordination alternative or complementary strategies in general ecological studies? J. Veg. Sci. 7 289–292 Occurrence Handle10.2307/3236330

    Article  Google Scholar 

  • R.H. Økland (1999) ArticleTitleOn the variation explained by ordination and constrained ordination axes J. Veg. Sci. 10 131–136 Occurrence Handle10.2307/3237168

    Article  Google Scholar 

  • G. Quinn M. Keough (2002) Experimental Design and Data Analysis for Biologists Cambridge University Press Cambridge 520

    Google Scholar 

  • A.J. Simons R.R.B. Leakey (2004) ArticleTitleTree domestication in tropical agroforestry Agroforest. Syst. 61 167–181 Occurrence Handle10.1023/B:AGFO.0000028997.74147.f9

    Article  Google Scholar 

  • C.J.F. ter Braak P. Smilauer (1998) CANOCO reference manual and user’s guide to Canoco for windows: software for canonical community ordination (version 4) Microcomputer Power Ithaca 352

    Google Scholar 

  • D. Tilman P.B. Reich J. Knops D. Wedin T. Mielke C. Lehman (2001) ArticleTitleDiversity and productivity in a long-term grassland experiment Science 294 843–845 Occurrence Handle11679667 Occurrence Handle1:CAS:528:DC%2BD3MXotVChsb0%3D Occurrence Handle10.1126/science.1060391

    Article  PubMed  CAS  Google Scholar 

  • M. Noordwijk ParticleVan T.P. Tomich H. Foresta ParticleDe G. Michon (1997) ArticleTitleTo segregate or to integrate? The question of balance between production and biodiversity conservation in complex agroforestry systems Agroforestry Today 9 6–9

    Google Scholar 

  • R.J. Whittaker K.J. Willis R. Field (2001) ArticleTitleScale and species richness: towards a general, hierarchical theory of species diversity J. Biogeogr. 28 453–470 Occurrence Handle10.1046/j.1365-2699.2001.00563.x

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to R. Kindt.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kindt, R., Van Damme, P., Simons, A.J. et al. Planning tree species diversification in Kenya based on differences in tree species composition between farms. I. Analysis of tree uses. Agroforest Syst 67, 215–228 (2006). https://doi.org/10.1007/s10457-005-1703-2

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10457-005-1703-2

Keywords

Navigation