[en] We present tree community diversity, species composition, basal area and aboveground biomass of three forest types in the Dja Biosphere Reserve, in South-East Cameroon, part of the contiguous tropical forest of the Congo Basin. A total of fourteen, 1 ha, plots were established in heterogeneous terra firme forests (TFF), Gilbertiodendron dewevrei forests (GDF) and periodically flooded forests (PFF). A total of 281 tree species with diameter ‡10 cm were recorded. The Shannon diversity index was significantly higher in TFF (5.7 ± 0.28) and PFF (5.6 ± 0.23) than in GDF (2.29 ± 0.48) (ANOVA, F2,11 = 139.75, P < 0.001). While tree density did not differ between forest types (F2,11 = 3.50, P = 0.06), basal area differed significantly (F2,11 = 7.38, P = 0.009), as did aboveground biomass (F2,11 = 17.95, P < 0.001). Mean AGB values were respectively, 596.1 ± 62.24, 401.67 ± 58.06 and 383.14 ± 61.91 Mg ha)1 in GDF, TFF and PFF. Variation in the abundance of trees with large diameter was the main reason for these differences. Few dominant species made the greatest contribution to the AGB. G. dewevrei, accounted for 83% of AGB in GDF, Penthaclethra macrophylla for 9.9% in TFF and Uapaca heudolotii for 10.6% in PFF. The importance of preserving G. dewevrei forest in the context of ‘Reducing Emissions from Deforestation and forest Degradation’ (REDD) policies is discussed.
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Bibliography
Anonymous (1986) Atlas des Bois Tropicaux, tome I - Afrique.; Association Internationale Technique des Bois Tropicaux; 208 p.
Baker, T.R., Phillips, O., Malhi, Y., Almeida, S., Arroyo, L., Di Fiore, A., Erwin, T., Higuchi, N., Killeen, T., Laurence, S., Laurence, W., Lewis, S., Montegudo, A., Neill, D., Vargas, P., Piman, N., Silva, J. & Martinez, R. (2004a) Variation in wood density determines spatial patterns in Amazonian forest biomass. Glob. Chang. Biol. 14, 545-562.
Baker, T.R., Phillips, O., Malhi, Y., Almeida, S., Arroyo, L., Di Fiore, A., Erwin, T., Higuchi, N., Killeen, T., Laurence, S., Laurence, W., Lewis, S., Montegudo, A., Neill, D., Vargas, P., Piman, N., Silva, J. & Martinez, R. (2004b) Increasing biomass in Amazonian forest plots. Philos. Trans. R. Soc. Lond., B, Biol. Sci. 359, 353-365.
Brown, S. (1997) Estimating biomass and biomass change of tropical forests: a primer. UN-FAO Forestry paper, Rome, Italy, p. 134.
Brown, S., Gillespie, A.J.R. & Lugo, A.E. (1989) Biomass estimation methods of tropical forests with application to forest inventory data. Forest Science 35(4), 881-902.
Brown, S. & Lugo, A.E. (1984) Biomass of tropical forest: a new estimate based on forest volumes. Science 223, 1290-1293.
Brown, S. & Lugo, A.E. (1992) Above-ground biomass estimates for tropical moist forests of Brazilian Amazon. Interciencia 17, 8-18.
Brown, S. & Schroeder, P.E. (1999) Spatial patterns of aboveground production and mortality of woody biomass for eastern US forests. Ecol. Appl. 9, 968-980.
Canadell, J.G., Raupach, M.R. & Houghton, R.A. (2009) Anthropogenic CO2 emissions in Africa. Biogeosciences discussions 6, 463-468.
Chave, J., Riera, B. & Dubois, M.A. (2001) Estimation of biomass in a neotropical forest of French Guiana: spatial and temporal variability. J. Trop. Ecol. 17, 79-96.
Chave, J., Condit, R., Lao, S., Caspersen, J., Foster, R. & Hubbell, S. (2003) Spatial and temporal variation of biomass in a tropical biomass forest: results from a large census plot in Panama. J. Ecol. 91, 240-252.
Chave, J., Andalo, C., Brown, S., Cairns, M.A., Chambers, J.Q., Eamus, D., Fölster, H., Fromard, F., Higuchi, N., Kira, T., Lescure, J.-P., Nelson, B.W., Ogawa, H., Puig, H., Riera, B. & Yamakura, T. (2005) Tree allometry and improved estimation of carbon stocks and balance in tropical forests. Oecologia 145, 87-99.
Chave, J., Condit, R., Muller-Landau, H.C., Sean, C.T., Ashton, P.S., Bunyavejchewin, S., Co, L.L., Dattaraja, H.S., Davies, S.J., Esufali, S., Ewango, C.E.N., Feeley, K.J., Foster, R.B., Gunatilleke, N., Gunatilleke, S., Hall, P., Hart, T.B., Hernandez, C., Hubbell, S.P., Itoh, A., Kiratiprayoon, S., Lafrankie, J.V., Loo De Lao, S., Makana, J.-R., Noor Md, N.S., Kassim, A.R., Samper, C., Sukumar, R., Suresh, H.S., Tan, S., Thompson, J., Tongco, M.A.D.C., Valencia, R., Vallejo, M., Villa, G., Yamakura, T., Zimmerman, J.K. & Losos, E.C. (2008) Assessing evidence for a pervasive alteration of tropical tree communities. PLoS Biol. 6, e45.
Chave, J., Coomes, D., Jansen, S., Lewis, S.L., Swenson, N.G. & Amy, E. (2009) Towards a worldwide wood economics spectrum Ecology. Letters 12, 351-366.
Ciais, P., Piao, S.-L., Cadule, P., Friedlingstein, P. & Ch'Edin, A. (2009) Variability and recent trends in the African terrestrial carbon balance. Biogeosciences discussions 6, 1935-1948.
Clark, D.A. (2002) Are tropical forests an important global carbon sink?: revisiting the evidence from long-term inventory plots. Ecol. Appl. 12, 3-7.
Clark, D.B. & Clark, D.A. (2000) Landscape-scale variation in forest structure and biomass in tropical rain forest. For. Ecol. Manage. 137, 185-198.
Clark, D.A., Brown, S., Kicklighter, D., Chambers, J.Q., Thomlinson, J.R. & Ni, J. (2001) Net primary production in tropical forests: an evaluation and synthesis of existing field data. Ecol. Appl. 11, 371-384.
Connell, J.H. & Lowman, M.D. (1989) Low-diversity tropical rainforests: some possible mechanisms for their existence. Am. Nat. 134, 88-119.
Dallmeier, F., Kabel, M. & Rice, R. (1992) Methods for long-term biodiversity inventory plots in protected tropical forest. in Long term monitoring of biological diversity in tropical area: methods for establishment and inventory of permanent plots (ed. F. Dallmeier). MAB Digest 11, UNESCO, Paris, pp. 11-46.
De Wasseige, C., Devers, C., De Marcken, P., Eba'a Atyi, R., Nasi, R. & Mayaux, P. (2009) Les Forêts du Bassin du Congo. Etat des Forêts 2008. Office des publications de l'Union européenne, Luxembourg.
Denman, K.L., - G. Brasseur, A., Chidthaisong, P., Ciais, P.M., Cox, R.E., Dickinson, D., Hauglustaine, C., Heinze, E., Holland, D., Jacob, U., Lohmann, S., Ramachandran, P.L., Da Silva Dias, S.C., Wofsy, X. & Zhang, X.. (2007) The Physical Science Basis. IN Climate Change 2007 (Eds S. Solomon et al. .) Cambridge University Press, Cambridge, UK, pp. 663-745.
Dewalt, J.S. & Chave, J. (2004) Structure and biomass of four Lowland Neotropical Forests. Biotropica 36(1), 7-19.
Dixon, R.K., Brown, S., Houghton, R.A., Solomon, A.M., Trexler, M.C. & Wisniewski, J. (1994) Carbon Pools and Flux of Global Forest Ecosystems. Science 263, 185-190.
Fays, R. (2008) Des forêts...Des bois. Impribeau Sainte-Ode, Belgique, p. 1022.
Fearnside, P. (1997) Wood density for estimating forest biomass in Brazilian Amazonia. For. Ecol. Manage. 90, 59-87.
Gartlan, S. (1989) La conseqrvation des écosystèmes forestiers du Cameroun. Programme de l'UICN pour les forêts tropicales. Royaume-Uni, Suisse et Cambridge, p. 186.
Gibbs, H.K., Brown, S., Niles, O.J. & Foley, J.A. (2007) Monitoring and estimating tropical forest carbon stocks: making REDD a reality. Environ. Res. Lett. 2, 1-13.
Gross, N.D., Torti, S.D., Feener, D.H. & Coley, P.D. (2000) Monodominance in an African rainforest: is reduced herbivory important? Biotropica 32(3), 430-439.
Hart, T.B. (1995) Seed, seedling and sub-canopy survival in monodominant and mixed forests of the Ituri Forest, Africa. J. Trop. Ecol. 11, 443-459.
Hart, T.B., Hart, J.A. & Murphy, P.G. (1989) Monodominant and species-rich forests of the humid tropics: causes for their co-occurrence. American Naturalis 133(5), 613-633.
Houghton, R.A., Lawrence, K.L., Hackler, J.L. & Brown, S. (2001) The spatial distribution of forest biomass in the Brazilian Amazon: a comparison of estimates. Glob. Chang. Biol. 7, 731-746.
Kouob, S. (2009) Organisation de la diversité végétale dans les forêts matures de terre ferme du sud-est Cameroun. Thèse Ph.D, Université Libre de Bruxelles, P. 161.
Laurance, W.F., Fearnside, P.M., Laurance, S.G., Delamonica, P., Lovejoy, T.E., Rankin De Merona, J.M., Chambers, J.Q. & Gascon, C. (1999) Relationship between soils and Amazon forest biomass: a landscape-scale study. For. Ecol. Manage. 118, 127-138.
Le Quéré, C., Raupach, M.R., Canadell, J.G., Marland, G., Bopp, L., Ciais, P., Conway, T.J., Doney, S.C., Feely, R.A., Foster, P., Friedlingstein, P., Gurney, K., Houghton, R.A., House, J.I., Huntingford, C., Levy, P.E., Lomas, M.R., Majkut, J., Metzl, N., Ometto, J.P., Peters, G.P., Prentice, I.C., Randerson, J.T., Running, S.W., Sarmiento, J.L., Schuster, U., Stephen Sitch, S., Taro Takahashi, T., Nicolas Viovy, N., Guido R Van Der Werf, G.R. & Woodward, F.I. (2009) Trends in the sources and sinks of carbon dioxide. Nat Geosci 2, 831-836.
Lescuyer, G. & Locatelli, B. (1999). Rôle et valeur des forêts tropicales dans le changement climatique. Bois et Forêts des Tropiques N° 260 (2), 5-17.
Letouzey, R. (1985) Notice de la carte phytogéographique du Cameroun au 1:500 000. Institut de la Carte Internationale de la Végétation, Toulouse, France, p. 142.
Lewis, S.L. (2006) Tropical forests and the changing earth system. Philos. Trans. R. Soc. Lond., B, Biol. Sci. 361, 195-210.
Lewis, L.S., Lopez-Gonzalez, G., Sonké, B., Affum-Baffoe, K., Baker, T.R., Ojo, L.O., Phillips, O.L., Reitsma, J., White, L., Comiskey, J., Ewango, C., Feldpausch, T.R., Hamilton, A.C., Gloor, M., Hart, T., Hladik, A., Djuikouo Kamdem, M.N., Jon, L., Lovett, J., Makana, J.-R., Malhi, Y., Mbago, F.M., Ndangalasi, H.J., Peacock, J., Peh, K.S.-H., Sheil, D., Sunderland, T., Swaine, M.D., Taplin, J., Taylor, D., Sean, C.T., Votere, R. & Hannsjörg, W. (2009a) Increasing Carbon Storage in Intact African Tropical Forests. Nature 457, 1003-1006.
Lewis, S.L., Lloyd, J., Sitch, S., Mitchard, E.T.A. & Laurance, W.F. (2009b) Changing Ecology of Tropical Forests: Evidence and Drivers. Ann. Rev. Ecol. Evol. Syst. 40, 529-549.
McGinley, M. (2008) Dja Faunal Reserve. IN Encyclopedia of Earth. (ed. C.J. Cleveland). United Nations Environment Programme-World Conservation Monitoring Centre.
McGuire, K.L. (2007) Ectomyvorrhizal Networks May Maintain Monodominance In A Tropical Rain Forest. Ecology 88(3), 567-574.
Parmentier, I., Malhi, Y., Senterre, B., Whittaker, R.J., Atdn Alonso, A., Balinga, M.P.B., Bakayoko, A., Bongers, F., Chatelain, C., Comiskey, J.A., Cortay, R., Djuikouo Kamdem, M.N., Doucet, J.L., Gautier, L., Hawthorne, W.D., Isembe, Y.A., Kouame, F.N., Kouka, L.A., Leal, M.E., Lejoly, J., Lewis, S.L., Nusbaumer, L., Parren, M.P.E., Peh, K.S.H., Phililips, O.L., Sheil, D., Sonke, B., Sosef, M.S.M., Sunderland, T.C.H., Stropp, J., Steege, H.T., Swaine, M.D., Tchouto, M.G.P., Vangemerden, B.S., Valkenburg, J.L.C.H. & Woll, H. (2007) The odd man out? Might climate explain the lower tree alpha-diversity of Africain rain forests relative to Amazonian rain forests? J. Ecol. 95, 1058-1071.
Peh, K.S. (2009) The relationship between species diversity and ecosystem function in low- and high-diversity tropical African forests. Unpublished Ph.D thesis, University of Leeds, Leeds, UK.
Peters, C.M. (1997) Exploitation soutenue des produits forestiers autres que le bois en forêt tropicale humide: Manuel d'Initiation Ecologique. Série Générale du Programme d'Appui à la biodiversité, n°2, p. 49.
Phillips, O.L., Lewis, S.L., Baker, T.R., Chao, K.-J. & Higuchi, N. (2008) The Changing Amazon Forest. Philos. Trans. R. Soc. Lond., B, Biol. Sci. 363, 1819-1827.
Reyes, G.S., Brown, S. & Chapman, J. (1992) Wood densities of tree species. Report no S0-88, Southern Forest Experiment Station, New Orleans, USA.
Sonké, B. (2005) Forêts de la Réserve du Dja (Cameroun): Etudes floristiques et structurales. Scripta Bot. Belg. 32: 144. Leuven, Belgique.
Stegen, J.C., Swenson, N.G., Valentia, R., Enquist, B.J. & Thompson, J. (2009) Above-ground forest biomass is not consistently related to wood density in tropical forests. Glob. Ecol. Biogeogr. DOI:
Torti, S.D. & Coley, P.D. (1999) Tropical Monodominance a preliminary test of the ectomycorrhizal hypothesis. Biotropica 31(2), 220-228.
Torti, S.D., Coley, P.D. & Kursar, T.A. (2001) Causes and consequences of monodominance in tropical lowland forests. Am. Nat., 157, 141-153.
Van Der Werf, G.R., Morton, D.C., Defries, R.S., Olivier, J.G.J., Asibhatla, P.S., Jackson, R.B., Collatz, G.J. & Randerson, J.T. (2009) CO2 emissions from forest loss. Nat Geosci 2, 737-738.
White, L. & Edwards, A. (2001) Conservation en forêt pluviale africaine: Méthodes de recherches. Wildlife Conservation Society, New York, p. 444.
Williamson, L. & Usongo, L. (1995) I Recensement des populations de primates et inventaires des grands mammifères. II Recensement des éléphants, gorilles et chimpanzés dans la Réserve de Faune du Dja (Cameroun). Rapport technique Projet Ecofac-Agreco, Brussels, Belgium, p. 47.
Zheng, Z., Zhill, F., Min, C., Zhongfei, L. & Jianhou, Z. (2006) Forest structure and biomass of tropical seasonal Rain forest in Xishuangbanna, southwest China. Biotropica 38(3), 318-327.
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