Early growth stages structure and distribution of Pericopsis elata (Harms) van Meeuven in a logging concession of South – East Cameroon
Paper Details
Early growth stages structure and distribution of Pericopsis elata (Harms) van Meeuven in a logging concession of South – East Cameroon
Abstract
Pericopsis elata (Harms) van Meeuwen is a tropical Africa’s timber of high economic value. In many countries its low natural regeneration rate does not favor the replacement of harvested populations, thus CITES and IUCN recommended a total protection of the species. This survey aimed to characterize the early growth stages and natural regeneration of P. elata through the determination of seedlings distribution and structure. Squared plots of 2500 m² were installed around stumps and seed-bearing trees respectively in the logged and unlogged forest concessions at Ouesso, near Yokadouma, South-East Cameroon. Stumps, seed-bearing trees and seedlings were counted and their structural parameters (diameter and height) were recorded. A total of 56 plots corresponding to 14 ha were surveyed and 1069 seedlings were recorded. The rate of regeneration was 56% around stumps and 24.13% around seed-bearing trees. The spatial distribution of seedlings appears to be aggregated. Germination and seedling growth have shown that early growth stages of Pericopsis elata are not representing a relevant limiting factor for the evolution of population. However, the limited number of saplings and the lack of poles suggest that light could play and important role in the evolution of the early stages.
Baraloto C, Fourget PM. 2004. Effects of post-logging microhabitats on regeneration from seed: implications for sustainable forest management. In: Gourlet-Fleury S, Gueehl JM, Laroussinie O. eds. Ecology and Management of Neotropical Rainforest. Elsevier, Paris, 181- 183.
Bariteau M. 1992. Régénération naturelle de la forêt tropicale humide de Guyane : étude de la répartition spatiale de Qualea rosea Aublet, Eperua falcata Aublet et Symphonia globufera Linnaeus f. Annales des Sciences Forestières 49, 359- 382.
Beckage B, Lavine M, Clark JS. 2005. Survival of tree seedlings across space and time: estimates from long-term count data. Journal of Ecology 93, 1177-1184.
Bourland N, Kouadio YL, Lejeune P, Sonke B, Philippart J, Daïnou K, Fétéké FR, Doucet JL. 2012. Ecology of Pericopsis elata (Fabaceae), a Timber Species Considered as Endangered, in Southeastern Cameroon. Biotropica 44(6), 840- 847.
Boyemba FB. 2011. Ecologie de Pericopsis elata (Harms) van Meeuwen (Fabaceae), arbre de forêt tropicale africaine à répartition agrégée. Thèse de Doctorat, Université Libre de Bruxelles, Belgique, 15 – 16.
CITES. 2003. Etude du Commerce important de Pericopsis elata. RP-PC14. Doc. 9.2.2. Annexe 3, 77-91 P.
De Wachter P, Malonga R, Moussavou MBL, Nishihara T, Nzooh Z, Usongo L. 2009. Dja-Odzala- Minkebe (Tridom). In: De Wasseige C, Devers D, De Marcken P, Eba’a Atyi R, Nasi R, Mayaux P, eds. Les Forêts du Bassin du Congo: Etat des Forêts 2008. Office des publications de l’Union européenne, 277- 292.
Din N, Priso RJ, Kenne M, Ngollo DE, Blasco F. 2002. Early growth stages and natural regeneration of Avicennia germinans (L.) Stearn in the Wouri estuarine mangroves (Douala-Cameroon). Wetlands, Ecology and Management 10(6), 461- 472.
Dupuy B. 1998. Bases pour une sylviculture en forêt dense tropicale humide. CIRAD-Forêt/CIFOR, Série FORAFRI, Document 4.
Frontier S, Pichod-Viale D. 1993. Ecosystèmes: Structure, Fonctionnement, Evolution. Edition MASSON, collection d’Ecologie 21 (deuxième édition).
Hosaka T, Niino M, Kon M, Ochi T, Yamada T, Fletcher, Okuda T. 2014. Effects of logging road networks on the ecological functions of dung beetles in Peninsular Malaysia. Forest Ecology and Management 326, 18-24.
Jesel S. 2005. Ecologie et dynamique de la régénération de Dicorynia guianensis (Caesalpiniaceae) dans une forêt de Guyane. Thèse de doctorat ès Sciences, Institut National Agronomique, Paris-Grignon (France).
ITTO. 2009. Guidelines for the conservation and sustainable use of biodiversity in tropical timber production forests. ITTO Policy Development Series, N° 17 Yokohama, Japan.
Judd WS, Campbell CS, Kellogg EA, Stevens PF. 1999. Plant Systematics: A phylogenetic approach. Sinauer Associates, Inc. Publishers, Sunderland, Massachusetts USA, 48- 52.
Karsten RJ, Jovanovic M, Meiby H, Perales E, Reynel C. 2013. Regeneration in canopy gaps of tierra-firme forest in the Peruvian Amazon: Comparing reduced impact logging and natural unmanaged forests. Forest Ecology and Management 310, 663- 671.
Letouzey R. 1985. Notice de la carte phytogéographique du Cameroun au 1:500.000: domaine de la forêt dense humide toujours verte. ICIV, Toulouse (France), 95- 142.
Montes-Hernández B, López-Barrera F. 2013. Seedling establishment of Quercus insignis: a critical endangered oak tree species in southern Mexico. Forest Ecology and Management 310, 927- 934.
Spracklen BD, Lane JV, Spracklen DV, Williams N, Kunin WE. 2013. Regeneration of native broadleaved species on clearfelled conifer plantations in upland Britain. Forest Ecology and Management 310, 204–212.
St-Denis A, Messier C, Kneeshaw. 2013. Seed size, the only factor positively affecting direct seedling success in an abandoned field in Quebec, Canada. Forests 4, 500- 516.
Tiscar PA, Linares JC. 2011. Structure and regeneration patterns of Pinus nigra subsp. Salzmannii natural forests: a basic knowledge for adaptive management in a changing climate. Forests 2, 1013- 1030.
Toledo-Aceves T, Purata-Velarde S, Peters CM. 2009. Regeneration of commercial tree species in a logged forest in the Selva Maya, Mexico. Forest Ecology and Management 258, 2481- 2489.
Vàsquez-Yanes C, Orozco-Segovia A. 1993. Patterns of seeds longevity and germination in the Tropical rainforests. Annual Review of Ecology and Systematics 24, 69- 87.
White LJT. 1994. Effects of commercial mechanized selective logging on a transect in lowland rainforest in the Lope Reserve, Gabon. Journal of Tropical Ecology 10(3),313- 322.
Wilhelm N, Miesch R. 1998. Botanique générale, traduction de la 10e édition allemande par Roger Miesch et Yves Sell. De Boeck Université (Thieme Verlag).
Nnanga M. Ruth Laure, Mala Armand William, Ndongo Din (2014), Early growth stages structure and distribution of Pericopsis elata (Harms) van Meeuven in a logging concession of South – East Cameroon; JBES, V5, N3, September, P354-363
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