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Review Article 

Colophospermum Mopane Leaf Production and Phenology in Southern Africa's Savanna Ecosystem - A Review

Rudzani A Makhado, Martin J Potgieter and Wilmien J Luus-Powell

Abstract

colophospermum mopane, commonly known as mopane, is a dominant tree or shrub in the mopane woodland. It is widely distributed in the low-lying areas of southern Africa's savanna. Despite its wide distribution, ability to survive water stress conditions, and value as a source of browse for herbivores, especially during the dry season, there is limited knowledge on mopane leaf production and phenology as well as its implications to browsers. This knowledge gap is making it difficult for game ranchers and conservationists to fully understand the availability and quality of mopane browse in different seasons.

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Review Article 

Soils at the Altitudinal and Northern Treeline: European Alps, Northern Europe, Rocky Mountains - A Review

Friedrich-Karl Holtmeier and Gabriele Broll

Abstract

No treeline-specific soil types exist. The treeline ecotone is usually characterized by a mosaic of soil types closely related to the locally varying conditions. Microtopography and the patchiness of the plant cover play an important role in this respect. Most soils in the treeline are shallow, and rich in skeletal material. Freeze-thaw processes are important agents for pedogenesis. Natural disturbances such as landslides, avalanches and fire affect soil development in the treeline ecotone.

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Research Article 

Long-Term Vegetation Changes in the Pietersburg Plateau Bushveld of the Limpopo Province, South Africa: A New Floristic Assessment of the Turfloop Nature Reserve

MJ Potgieter, MM Mashatole, and JJ Jordaan

Abstract

A floristic assessment of the Turfloop Nature Reserve was undertaken, with specific reference to the vegetation structure, species of conservation importance (i.e. Red Data species, protected, endemic species, species of medicinal value and biotic and a biotic environment).

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Research Article 

Impact of Ethnobotanical Utilization on the Population Structure of Androstachys johnsonii P rain. in the Vhembe Area of the Limpopo Province, South Africa

Bakali M, Ligavha-Mbelengwa MH, Potgieter MJ and Tshisikhawe MP

Abstract

Due to high levels of impoverishment, rural communities in southern African are highly dependent on their surroundings to sustain their livelihood. However, the rampant harvesting of Androstachys johnsonii Prain.

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Research Article 

The Effect of Root and Shoot Extracts of Seriphium Plumosum as Allelopathic Agents

Baltimore M Mokou, Jorrie J Jordaan, Tieho P Mafeo and Martin J Potgieter

Abstract

Seriphium plumosum is a declared indicator of bush encroachment and poses a serious threat to the management of sustainable utilization in all grasslands.

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Research Article 

Comparisons Infloristic Composition and Plant Species Diversity Amongst Granite Outcrops of the Mamabolo Mountain Bushveld, South Africa

Tlou S Masehela, Martin J Potgieter and Ruan Veldtman

Abstract

The geographical landscapes together with environmental conditions are well recognised drivers in determining a suitable habitat for plants and animals on rocky as well as granite outcrops.

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Research Article 

Elephant Management Plan Outputs

MQ Seloana, MJ Potgieter, JW Kruger and JJ Jordaan

Abstract

The African elephant is listed as a Protected Species in the list of Threatened or Protected Species. The interaction between elephants and trees in African savannas has become an active debate between scientists and managers as a result of ecosystem regulation.

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Research Article 

Spatial and Temporal Patterns of CO2, CH4, and N2O Fluxes at the Soil-Atmosphere Interface in a Northern Temperate Forested Watershed

Joshua Gomez, Philippe Vidon, Jordan Gross, Colin Beier and Myron Mitchell

Abstract

Forest soils are recognized as sources and sinks of greenhouse gases (GHG) (CO2, CH4, N2O), but there are limited data quantifying the magnitude of GHG fluxes at the soil-atmosphere interface across a range of landscape hydrogeomorphic conditions.

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