Milicia excelsa

Identité et écologie des espèces forestières commerciales d'Afrique Centrale: le cas de Milicia spp. (Identity and ecology of Central African timber tree species: the case of Milicia spp.)

The authors explore the literature on two native tree species of commercial value in central Africa:Milicia excelsa and Milicia regia. Known locally as iroko, the authors note that exploitation of the trees have led to a decrease in its abundance. Finally, the authors argue that because the species are recognized as having economic importance, more research is needed on the species' ecologies in order to sustainably manage them.

 

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L’abattage sélectif: une pratique agricole ancestrale au service de la régénération forestière (Selective clearing: Forest regeneration through an ancestral agricultural practice)

The author describes selective clearing of forests in crop fields. She notes the benefits of selective clearing such as increased speed of forest regeneration. Finally, the author contrasts the traditional agricultural practices of the Ntumu people to more destructive and widespread methods.

 

Open access copy available

The Restoration of Degraded Forests in Ghana: A Case Study in the Offinso Forest District

background

This study investigates how density and diversity of key native tree saplings differ in different plantation stand types in plantations adjacent to a degraded forest reserve in the Ashanti Region of Ghana. The influence of overstory species composition on natural regeneration of single exotic (Cedrella odorata and Tectona grandis) and mixed stands (Khaya grandifoliola, Antiaris toxicaria, Ceiba pentandra, Triplochiton scleroxylon, Terminalia superb, Terminalia ivorensis and Anopyxis klaineana) of native species was assessed.

Open access copy available

Responses of Tree Seedlings to the Removal of Chromolaena odorata Linn. in a Degraded Forest in Ghana

background

This study assesses the effects of Chromolaena odorata, a dense grass removal on native trees seedlings in a degraded dry semi-deciduous forest in Ghana.

Research Goals & Methods

Chromolaena odorata was removed from 50% of the plots and the other half left intact. Seedling height, the number of leaves per seedling, and seedling mortality were investigated in both released and unreleased plots immediately after the release treatment in June 1998 and again 3 months later September 1998.

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Changes in Plant Species Composition Within a Planted Forest in a Deciduous Agroecosystem in Ghana

Background

Early-successional tree plantations can promote regeneration of second-growth mixed-species forests. While non-native species have been studied for their role in enabling second-growth regeneration, this study surveys understories of plantations of trees native to Ghana in a post-maize site to explore the suitability of native trees for promoting second-growth regeneration.

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