Growth, Yield and Survivability

Habitat Distribution of Dipterocarp Species in the Leyte Cordillera: An Indicator for Species – Site Suitability in Local Reforestation Programs

Background

This article presents the results of a vegetation study in primary forest areas of the Leyte Cordillera in the Philippines, sampling populations of 18 species of Dipterocarp across topographic habitats and elevation classes. As a young volcanic cordillera, this tropical region is dominated by rugged topography, with slopes as steep as 30 to 60 degrees.

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Evaluation of Natural Regeneration and Tree species diversity in Miombo woodlands in Malawi

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This study seeks to determine the best management practices for the miombo woodland in Chongoni Forest Reserve, Malawi.

Research Goals & Methods

The authors used plots with four silvicultural practices-complete coppice, coppice with standard, selective thinning, and a control plot-to determine which method would have the best outcome for tree species diversity and natural regeneration of trees.

Open access copy available

Economic and Social Significance of Forests for Africa’s Sustainable Development

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This magazine issue covers topics related to Africa's forests and sustainable development.

Conclusions & Takeaways

Topics include sustainable mangrove management in Nigeria, plantation forests in South Africa, natural resource management in Zambia, land governance by local communities, etc.

 

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Quarry dust emission effects on tree species diversity in Chongoni forest Reserve and vegetation characteristics in adjacent villages, Dedza, Malawi

Background

Quarry dust is widely reported to have adverse effects on both human health and plant community structure, particularly resulting in decreased diversity and ecosystem functions. Therefore, it is critical to examine and monitor the interactions between these dust particles and vegetation.

Open access copy available

Ecological Study of Kirisia Forest Reserve

Background

In order to inform a 2009 Conservation Enterprise Development Program, a preliminary ecological survey was carried out at the Kirisia Forest Reserve in Samburu District, Kenya. The survey was in response to an aerial survey conducted by the Wilderness Foundation UK that examined potential drivers of forest destruction.

Open access copy available

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.

 

Open access copy available

Non-timber Forest Product Harvest does not Affect the Genetic Diversity of a Tropical Tree Despite Negative Effects on Population Fitness

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The authors investigated a relationship between exploitation of economically important mahogany in Benin and the species genetic diversity. The study is base on the theory that disturbances in forest habitats can lead to a decrease in diversity due to population fragmentation and increased inbreeding.

Open access copy available

Effet de la lumière des trouées de la canopée sur le potentiel et la dissémination de Gnetum africanum dans les écosystèmes forestiers congolais

This article examines Gnetum africanum, a species of commercial interest in Central African forests. The authors Iinvestigated the importance of light in Gnetum africanum dispersal and regeneration by analysing the effect of canopy gaps on Gnetum africanum in different forest types. Ther determined that Gnetum africanum is a shade tolerant species that needs shade to germinate and prefers low light levels as juveniles.

 

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Croissance et assimilation nette foliaire de jeunes plants de dix arbres de la forêt guyanaise, cultivés à cinq niveaux d'éclairement

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This study assesses the growth of ten species of tropical rainforest trees under 5 different light conditions.

Conclusions & Takeaways

The authors find that juveniles of most species did best in 25-45% sun light conditions and that the lowest light levels severely decrease growth across species.

 

Open access copy available

Les acacias: des plantes fixatrices d’azote prometteuses pour le développement durable des zones arides et semi-arides (Acacia: Promising Nitrogen fixing trees for sustainable development in arid and semi-arid areas)

The authors discuss the use of Acacia species for production purposes in arid and semi-arid zones.

 

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