Reference : Ecological characterization of Lophira alata (Ekki), a vulnerable timber tree species...
Scientific congresses and symposiums : Poster
Life sciences : Agriculture & agronomy
Life sciences : Phytobiology (plant sciences, forestry, mycology...)
Ecological characterization of Lophira alata (Ekki), a vulnerable timber tree species, in order to develop silvicultural effective strategies
[en] Caractérisation écologique de Lophira alata (azobé), une essence commerciale jugée vulnérable, en vue de développer des stratégies sylvicoles efficaces
Biwole, Achille mailto [Université de Liège - ULiège > > > Form. doct. sc. agro. & ingé. biol.]
Doucet, Jean-Louis [Université de Liège - ULiège > Forêts, Nature et Paysage > Laboratoire de Foresterie des régions trop. et subtropicales >]
Young botanist day 2011 "Forest Biodiversity"
2 décembre 2011
Université catholique de Louvain, département de biologie, Laboratoire d'écologie végétale
Royal Botanical Society Belgium
[en] Lophira alata (Ekki) ; Ecological characterization ; Silviculture
[fr] Lophira alata (azobé) ; Caractérisation écologique ; Sylviculture
[en] Ekki, Lophira alata Banks ex C.F.Gaertn., is an African timber species occurring in tropical rainforests. Of important commercial value, this species is logged for its excellent timber properties and has been classified by the IUCN as «vulnerable" species. As for many other tropical tree species, the commercial exploitation of Ekki is confronted to an insufficient knowledge about the species’ ecological profile. With a distribution range limited to the Guinea-Congolian region, Ekki often displays insufficient natural regeneration, but the biotic and abiotic factors explaining this deficiency have been hardly characterized. This lack of knowledge makes it difficult to model the population dynamics on the long term. The reproductive biology of Ekki and the genetic variability of its population remains poorly studied too. To address this situation, a fundamental and applied research is being undertaken in the forest concessions managed by Wijma Cameroun SA., covering over 250,000 hectares of rainforest in Southern Cameroon. This study aims to answer four essential questions: (1) what is the phylogenetic relationship between L. alata and L. lanceolata, (2) how paleoclimate and human disturbances impact its distribution and abundance, (3) how to these populations respond to logging over several rotation periods, (4) does logging promote or inhibit the natural regeneration of the species. Several study devices have thus been installed to collect the data needed to improve the characterization of Ekki’s ecology and to conceive silvicultural strategies.
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