Effects of Solanum mauritianum Scopoli (bugweed) invasion on soil and vegetation in Vhembe Biosphere Reserve, South Africa

2021 ◽  
Author(s):  
Sheunesu Ruwanza
2020 ◽  
Vol 116 (9/10) ◽  
Author(s):  
Sheunesua Ruwanza ◽  
Edward S. Mhlongo

Roads and rivers act as conduits of alien plant invasion; however, little is known regarding the abundance and invasion extent of Lantana camara, an invasive shrub, along road–river interchanges and roadsides in South Africa. We assessed the effects of road–river interchanges and roadsides as invasion corridors that facilitate L. camara invasion. A road survey method was used to measure the invasion extent of L. camara along road–river interchanges and roadsides from national and regional roads covering 446 km in Soutpansberg, Vhembe Biosphere Reserve, South Africa. L. camara occurred along 21 of the 48 surveyed road–river interchanges and its abundance and cover were similar between road–river interchanges and roadsides, although height and diameter of L. camara were greater along road–river interchanges than roadsides. Other alien species that dominated road–river interchanges were Solanum mauritianum, Caesalpinia decapetala and Rubus rigidus. Our results indicate that L. camara dominates both road–river interchanges and roadsides, therefore roads and bridges should be considered important targets for L. camara control.


Bothalia ◽  
2019 ◽  
Vol 49 (1) ◽  
Author(s):  
Norbert Hahn

Background: The first checklist for the Soutpansberg was published in 1946, and the second list was compiled by the author in 2006 as part of his doctoral thesis. Currently, there is a need for an updated account of the biodiversity of the Soutpansberg Centre of Endemism and Diversity for conservation planning in the Vhembe Biosphere Reserve, within which the Soutpansberg is the principle geomorphological feature.Objectives: To present an updated list of vascular plants recorded for the Soutpansberg.Method: The list was compiled from various sources including literature reviews, herbarium specimens, herbarium databases and personal observations.Results: This article presents the most geographically accurate and taxonomically updated list of the indigenous vascular flora of the Soutpansberg, the northernmost mountain range of South Africa. Altogether 2443 taxa are recorded belonging to 922 genera in 187 families and 64 orders.Conclusion: The list presented in this article confirms the status of the Soutpansberg as a centre of floristic diversity in southern Africa. Notable is the higher-order diversity of the flora. It is likely that both future surveys and reviews of herbarium collections will add new taxa to the current total.


Bothalia ◽  
2000 ◽  
Vol 30 (2) ◽  
pp. 147-153 ◽  
Author(s):  
E. G. H. Oliver ◽  
I. M. Oliver

Three new species of  Erica L. from the mountains of Western Cape, South Africa, are described. E. rustieula E.G.H.Oliv. with an indehiscent fruit, is confined to sandy places in the eastern Cold Bokkeveld. E humidicola E.G.H.Oliv. is a highly localized endemic in seepages in the Kogelberg Biosphere Reserve and E rimarum E.G.H.Oliv. is restricted to rock faces at high altitudes in the Hex River Mountains.


2021 ◽  
Vol 13 (8) ◽  
pp. 4252
Author(s):  
Mwazvita T. B. Dalu ◽  
Ashley W. Gunter ◽  
Mulweli Makatu ◽  
Gregory M. Dowo ◽  
Farai Dondofema ◽  
...  

With ~70% of the sub-Saharan population living in rural areas, more than 90% of rural African households depend on natural forest products. Although several studies in other parts of South Africa have looked into the use of natural forest products in poverty alleviation, little is known on the roles and relative contribution of natural forest products as daily and safety nets specifically within the Vhembe Biosphere Reserve, South Africa. This study assessed the different roles played by natural forest products in households and the patterns of their relative contribution to households both as sources of income and direct consumption within differing household compositions as well as socio-economic factors. These included employment and income diversification role and the monetised value of natural resources in the rural livelihoods of households in Sambandou and Mavunde, Vhembe Biosphere Reserve, Limpopo Province, South Africa. The study inter alia compared a wide use of natural resources by two villages and determined on which forest products they most relied for their economic welfare. Their relative contributions to livelihoods were assessed by identifying factors that affected their contributions. Findings of the study showed that Sambandou had a high number of people with formal jobs and females, and fewer old-age pensioners. Differences in employment and education between villages were observed. In all villages, the most frequently used or harvested resource was fuelwood, wild edible fruits, herbs, grass/shrub hand sweepers, insects for food, thatch grass/reeds and poles for fencing and housing. Overall, Mavunde village households were found to be more dependent on natural resource harvesting both for income and subsistence substitution. Findings suggest that this may have been a consequence of socio-economic factors such as income and employment, as well as general underdevelopment in the village. This study’s findings could contribute to further studies into how these results compare to other parts of the country and region, as well as their respective developmental implications.


Sign in / Sign up

Export Citation Format

Share Document