The distribution of selected woody invasive alien species in small towns in the Eastern Cape, South Africa

2021 ◽  
Vol 141 ◽  
pp. 290-295
Author(s):  
A. Mabusela ◽  
C.M. Shackleton ◽  
N. Gwedla
2020 ◽  
Vol 21 (4) ◽  
Author(s):  
LULEKA MDWESHU ◽  
A. Maroyi

Abstract. Mdweshu L, Maroyi A. 2020. Short Communication: Local perceptions about utilization of invasive alien species Opuntia ficus-indica in three Local Municipalities in the Eastern Cape Province, South Africa. Biodiversitas 21: 1653-1659.  Opuntia ficus-indica is a succulent plant species categorized as invasive in South Africa but has both commercial and non-market uses. This study evaluated local people’s perceptions about utilization of O. ficus-indica in three local Municipalities in the Eastern Cape province of South Africa. Data on the local perceptions on O. ficus-indica in the study area were documented through focus group discussions and semi-structured interviews via questionnaires with households between June 2018 and August 2019. A sample of 150 participants chosen using snowball-sampling method provided information on utilization of O. ficus-indica. The importance of O. ficus-indica as a useful plant species was ubiquitously perceived, with all participants reporting its contribution as an important component of their livelihood needs and more than three quarters (88.0%) were using the species on a regular basis. Close to half of the respondents (49.3%) regarded O. ficus-indica as an important source of cash income. The positive socio-economic contributions of O. ficus-indica need to be taken into account when evaluating the costs and benefits resulting from invasions caused by alien plant species.


Biology ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1322
Author(s):  
Nolwethu Jubase ◽  
Ross T. Shackleton ◽  
John Measey

Invasive alien species (IAS) are a growing threat globally and cause a variety of ecological, economic, and social impacts. People can introduce IAS and facilitate their spread, and can also implement, support, or oppose their management. Understanding local knowledge, awareness, and perceptions are therefore crucial if management and policy are to be effective. We administered questionnaires to members of the public in eight small towns along the Berg River Catchment in the biodiverse fynbos biome of South Africa. We aimed to assess: (1) awareness of IAS by the general public, (2) local perceptions of the impacts associated with IAS, (3) whether awareness of IAS is correlated with demographic covariates and IAS density, and (4) people’s willingness to detect, report, and support IAS management. Overall, 262 respondents participated in the survey. Most respondents (65%) did not know what IAS are, and 10% were unsure. Many respondents also perceived IAS as beneficial. Using a logistic regression, we found that IAS density, educational level, and gender influenced people’s knowledge and perceptions about IAS in the region. There were a small number (4%) of respondents currently detecting and reporting IAS, but many respondents were interested to learn more. We concluded that people living in small towns in the Western Cape of South Africa remain largely unaware of IAS and their impacts. It is crucial to increase awareness-raising initiatives, and build support and engagement in management of IAS in small towns.


2011 ◽  
Vol 92 (6) ◽  
pp. 1449-1460 ◽  
Author(s):  
N.A. Davenport ◽  
J. Gambiza ◽  
C.M. Shackleton

Human Ecology ◽  
2006 ◽  
Vol 35 (1) ◽  
pp. 113-127 ◽  
Author(s):  
C. M. Shackleton ◽  
D. McGarry ◽  
S. Fourie ◽  
J. Gambiza ◽  
S. E. Shackleton ◽  
...  

Koedoe ◽  
2015 ◽  
Vol 57 (1) ◽  
Author(s):  
Graham R.H. Grieve ◽  
Colleen T. Downs

Eastern mistbelt forests are naturally fragmented forests with grassland which occur from the Eastern Cape to KwaZulu-Natal, South Africa. These were heavily logged by colonial settlers and continue to be harvested despite being protected. Consequently we documented a checklist of the plants of the forests and grasslands in the Weza district (3029DA WEZA), southern KwaZulu-Natal, including Ngeli Forest and nearby indigenous forest patches to highlight their biodiversity status and need for conservation. We also reviewed their status in the Red Data List. Of the 1554 records included in this summary of plant species for the Weza district, there were 6 lichens (0.4%), 46 bryophytes (3.0%), 58 pteridophytes (3.7%), 6 gymnosperms (0.4%) and the remaining 1424 species angiosperms (92.5%). Of the angiosperms, 27.3% were monocotyledons and 72.7% were dicotyledons. The most species-rich family was Asteraceae (239 species) followed by Fabaceae (115 species), Liliaceae (used for purposes of comparison against older studies – 89 species), Orchidaceae (89 species), Iridaceae (59 species), Poaceae (58 species), Asclepidaceae (again used for purposes of comparison against older studies – 57 species), Scrophulariaceae (42 species), Euphorbiaceae (32 species), Lamiaceae (32 species) and Rubiaceae (27 species). These 10 families each comprised more than 2% of the species in the list. Together they contributed 55% of the angiosperm species and 34.1% of the angiosperm genera. The biodiversity and conservation value of the study area are conserved pockets of eastern mistbelt forest, Drakensberg foothill moist grassland and mistbelt grassland. More than 4% of the species are under some degree of threat, as was evidenced by the number of species regarded as endangered (5), vulnerable (18), near threatened (10), critically rare (1), rare (20) or declining (11) amongst the 1554 species covered in the list.Conservation implications: In terms of taxa under some degree of threat, number of endemic and near endemic species the biodiversity and conservation value of the Ngele (3029DA WEZA) area is reinforced. This necessitates that the area is appropriately protected from invasive alien species, and uncontrolled and illegal use by the neighbouring communities.


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