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![]() | Orou GaouéVavilov-Frankel Fellowship Country: Benin | Year: 2004 Research Title: Impact of bark and foliage harvesting by indigenous people on genetic diversity of Khaya spp. in Benin, West Africa
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Dr. Orou Gaoué is a plant population ecologist with a strong interest in conservation and natural resource management. His research focuses on the ecological and evolutionary consequences of human activities on plants and forest ecosystems, particularly those affiliated with the traditions and cultures of indigenous people. He is highly knowledgeable and well-published on African Mahogany (Khaya senegalensis) and is active in the conservation of endangered tree species, demonstrated by his conservation project on Voacanga Africana through the Rufford Small Grants Foundation. Originally from Benin, Orou has studied and worked for many years in the United States, including in Hawaii, Florida and Tennessee.
Orou’s fellowship with Bioversity focused on the effects of local harvesting practices on African Mahogany (Khaya spp.) in Benin, West Africa. The population fitness of tree species often relies on a certain level of genetic diversity and resilience to change. However, adaptation to human activities such as bark and foliage harvesting, has been proven to cause significant consequences on reproductive performance and overall population health. Orou’s research focused on investigating whether such activities could also cause a loss of genetic diversity in populations due to inbreeding or other genetic alterations. Working with the Brazil Institute of Amazon Research (INPA) which has conducted similar research on Amazonian mahogany, Orou adopted their methodology on 12 wild populations of Khaya senegalensis in West Africa, but found it difficult to measure any genetic diversity loss. More detailed findings of his research can be found in the American Journal of Botany.
Orou is currently a Postdoctoral Fellow at the National Institute for Mathematical and Biological Synthesis (NIMBioS) at the University of Tennessee.
Publications
He has numerous publications on African Mahogany and more:
- Lemes, M. R., Esashika, T., and Gaoue, O.G. 2011. Microsatellites for mahoganies: Twelve new loci for Swietenia macrophylla and its high transferability to Khaya senegalensis. American Journal of Botany 98(8):207-209.
- Gaoue, O.G., Sack, L. and Ticktin, T. 2011.Human impacts on leaf economics in heterogeneous landscapes: the effect of harvesting non-timber forest products from African mahogany across habitats and climates. Journal of Applied Ecology 48:844-852.
- Gaoue. O.G., Horvitz, C. C. and Ticktin, T. 2011. Non-timber forest product harvest in variable environments: modeling the effect of harvesting as a stochastic sequence. Ecological Applications 21(5):1604–1616.
- Gaoue, O. G. and Ticktin, T. 2009. Fulani Knowledge of the Ecological Impacts of Khaya senegalensis (Meliaceae) Foliage Harvest in Benin and its Implications for Sustainable Harvest. Economic Botany 63(3):256–270.
- Gaoue, O.G. and Ticktin, T. 2009. Effects of Harvest of Nontimber Forest Products and Ecological Differences between Sites on the Demography of African Mahogany. Conservation Biology 24(2):605–614.
- Gaoue, O.G. and Ticktin, T. 2008.Impacts of bark and foliage harvest on Khaya senegalensis (Meliaceae) reproductive performance in Benin. Journal of Applied Ecology 45:34-40.
- Gaoue, O.G., Ticktin, T. 2007. Patterns of harvesting non-timber forest product from the multipurpose tree Khaya senegalensis in Benin: variation across climatic regions and its impacts on population structure. Biological Conservation 137:424-436.





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