scholarly journals Site selection for subtropical thicket restoration: mapping cold-air pooling in the South African sub-escarpment lowlands

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8980
Author(s):  
Robbert Duker ◽  
Richard M. Cowling ◽  
Marius L. van der Vyver ◽  
Alastair J. Potts

Restoration of subtropical thicket in South Africa using the plant Portulacaria afra (an ecosystem engineer) has been hampered, in part, by selecting sites that are frost prone—this species is intolerant of frost. Identifying parts of the landscape that are exposed to frost is often challenging. Our aim is to calibrate an existing cold-air pooling (CAP) model to predict where frost is likely to occur in the valleys along the sub-escarpment lowlands (of South Africa) where thicket is dominant. We calibrated this model using two valleys that have been monitored during frost events. To test the calibrated CAP model, model predictions of frost-occurrence for six additional valleys were assessed using a qualitative visual comparison of existing treelines in six valleys—we observe a strong visual match between the predicted frost and frost-free zones with the subtropical thicket (frost-intolerant) and Nama-Karoo shrubland (frost-tolerant) treelines. In addition, we tested the model output using previously established transplant experiments; ∼300 plots planted with P. afra (known as the Thicket-Wide Plots) were established across the landscape—without consideration of frost—to assess the potential factors influencing the survival and growth of P. afra. Here we use a filtered subset of these plots (n = 70), and find that net primary production of P. afra was significantly lower in plots that the model predicted to be within the frost zone. We suggest using this calibrated CAP model as part of the site selection process when restoring subtropical thicket in sites that lie within valleys—avoiding frost zones will greatly increase the likelihood of restoration success.

Author(s):  
Chris McConnachie

This essay is an analysis of the working and performance of the South African Judicial Service Commission (JSC). This essay describes how the JSC has been successful in enhancing transparency in the selection process and improving diversity in the judiciary. The essay remains categorical about the South African judiciary being independent and credible, even in the face of apprehensions by the JSC’s detractors of undue political interference in appointments. This essay makes an important point that the independence of the judiciary remains contingent on several variables, and the identity of those making the appointments is just one such factor. Thus, this essay critically analyses the JSC as an example of the commission model. Upon a concise assessment of the JSC’s functioning, this essay highlights some general trends which offer insights for the judicial appointments process in India.


2021 ◽  
Vol 2021 (2) ◽  
pp. 185-214
Author(s):  
Tina Kotzé

There has been a plethora of policy initiatives and academic debate focusing on how land should be acquired in South Africa for redistribution purposes and, if expropriation is to take place, at what value or for how much compensation. However, little attention has been paid to how land will be identified for acquisition in general, and expropriation specifically, for redistribution purposes. Therefore, the aim of this article is not to explore which approach is more suitable for specifically acquiring agricultural land, but rather how agricultural land should be identified prior to being acquired, specifically through expropriation, for redistribution purposes. To this end, the approach and criteria for identifying suitable agricultural land for expropriation as provided for in Namibia’s regulations to the Agricultural (Commercial) Land Reform Act 6 of 1995 may prove to be useful in formulating criteria for the South African context. The article concludes with the recommendation that for the sake of a transparent, procedurally fair and effective redistribution process in South Africa, objective, nonarbitrary criteria for identifying suitable agricultural land for redistribution purposes should be developed and provided for in regulations or policy. The development of criteria for identifying suitable agricultural land will provide the South African government with a useful tool in selecting agricultural land for acquisition and redistribution. The use of the criteria will not only contribute to a transparent, non-arbitrary and procedurally fair selection process, but will also assist landowners in determining the likelihood of their land being earmarked for redistribution.


2020 ◽  
Vol 17 (3) ◽  
pp. 433-444
Author(s):  
Amanuel Isak Tewolde

Many scholars and South African politicians characterize the widespread anti-foreigner sentiment and violence in South Africa as dislike against migrants and refugees of African origin which they named ‘Afro-phobia’. Drawing on online newspaper reports and academic sources, this paper rejects the Afro-phobia thesis and argues that other non-African migrants such as Asians (Pakistanis, Indians, Bangladeshis and Chinese) are also on the receiving end of xenophobia in post-apartheid South Africa. I contend that any ‘outsider’ (White, Asian or Black African) who lives and trades in South African townships and informal settlements is scapegoated and attacked. I term this phenomenon ‘colour-blind xenophobia’. By proposing this analytical framework and integrating two theoretical perspectives — proximity-based ‘Realistic Conflict Theory (RCT)’ and Neocosmos’ exclusivist citizenship model — I contend that xenophobia in South Africa targets those who are in close proximity to disadvantaged Black South Africans and who are deemed outsiders (e.g., Asian, African even White residents and traders) and reject arguments that describe xenophobia in South Africa as targeting Black African refugees and migrants.


2016 ◽  
Vol 13 (3) ◽  
pp. 359-376 ◽  
Author(s):  
Tiffany L Green ◽  
Amos C Peters

Much of the existing evidence for the healthy immigrant advantage comes from developed countries. We investigate whether an immigrant health advantage exists in South Africa, an important emerging economy.  Using the 2001 South African Census, this study examines differences in child mortality between native-born South African and immigrant blacks.  We find that accounting for region of origin is critical: immigrants from southern Africa are more likely to experience higher lifetime child mortality compared to the native-born population.  Further, immigrants from outside of southern Africa are less likely than both groups to experience child deaths.  Finally, in contrast to patterns observed in developed countries, we detect a strong relationship between schooling and child mortality among black immigrants.


2011 ◽  
Vol 1 (2) ◽  
Author(s):  
Andrea Hill ◽  
Sylvia Poss

The paper addresses the question of reparation in post-apartheid South Africa. The central hypothesis of the paper is that in South Africa current traumas or losses, such as the 2008 xenophobic attacks, may activate a ‘shared unconscious phantasy’ of irreparable damage inflicted by apartheid on the collective psyche of the South African nation which could block constructive engagement and healing. A brief couple therapy intervention by a white therapist with a black couple is used as a ‘microcosm’ to explore this question. The impact of an extreme current loss, when earlier losses have been sustained, is explored. Additionally, the impact of racial difference on the transference and countertransference between the therapist and the couple is explored to illustrate factors complicating the productive grieving and working through of the depressive position towards reparation.


Derrida Today ◽  
2010 ◽  
Vol 3 (1) ◽  
pp. 21-36
Author(s):  
Grant Farred

‘The Final “Thank You”’ uses the work of Jacques Derrida and Friedrich Nietzsche to think the occasion of the 1995 rugby World Cup, hosted by the newly democratic South Africa. This paper deploys Nietzsche's Zarathustra to critique how a figure such as Nelson Mandela is understood as a ‘Superman’ or an ‘Overhuman’ in the moment of political transition. The philosophical focus of the paper, however, turns on the ‘thank yous’ exchanged by the white South African rugby captain, François Pienaar, and the black president at the event of the Springbok victory. It is the value, and the proximity and negation, of the ‘thank yous’ – the relation of one to the other – that constitutes the core of the article. 1


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