The natural history and conservation of Indian Ocean Humpback Dolphins (Sousa plumbea) in South African waters
- Authors: Plön, Stephanie , Cockcroft, Victor G , Froneman, P William
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/68207 , vital:29219 , https://doi.org/10.1016/bs.amb.2015.08.005
- Description: Publisher version , Although most knowledge on the biology of Sousa plumbea has primarily come from South African waters, a number of research gaps remain on the natural history and status of the species in the region. Research on two populations in South African waters for which some historical data exist may aid in highlighting long-term changes in the biology and natural history of this little known coastal delphinid. Recent studies on the age, growth and reproduction of animals incidentally caught in shark nets in Richards Bay, KwaZulu-Natal, yielded a lower maximum age estimate of 24 (previously 46) growth-layer-groups (GLGs), sexual maturity of 7.5 and 8 GLGs in males and females (previously 12–13 and 10 GLGs, respectively), an ovulation rate of 0.2 and a 5-year calving interval (previously 0.3 and 3-year calving interval) than previously reported. These differences may be due to a difference in the interpretation of GLGs between observers or a predominance of young males being caught in the shark nets. Stomach content analysis revealed a change in the relative proportions of the main prey items over the past 25 years, but no difference in species richness or diversity was found between the sexes. No change in trophic level was recorded between 1972 and 2009. Field studies in Algoa Bay, Eastern Cape, conducted 16 years apart indicated a decline in the mean group size (from 7 to 3 animals), a decline in the maximum group size (from 24 to 13 animals), an increase in solitary individuals (15.4–36%), and a change in behaviour from predominantly foraging (64–18%) to mainly travelling (24–49%). The observed changes are suggestive of a change in food availability, resulting in a range shift or a potential decline in numbers. These studies indicate the importance of long-term studies to monitor population changes and their possible causes. A number of threats, such as shark nets, pollution (noise and chemical), and coastal development and disturbance, to the humpback dolphin populations in South Africa have been identified. Urgent action is required to ensure continued existence of the species in South African waters.
- Full Text: false
- Date Issued: 2015
The Personal Wellbeing Index in the South African isiXhosa translation: a qualitative focus group study
- Authors: Moller, Valerie , Roberts, Benjamin J , Zani, Dalindyebo
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67125 , vital:29034 , https://doi.org/10.1007/s11205-014-0820-6
- Description: publisher version , International scholars who rely on the Personal Wellbeing Index (PWI) to compare cross-cultural quality of life have often been confronted with the problems of nuances getting ‘lost in translation’. This qualitative study explored the meaning of the isiXhosa version of the PWI in focus group discussions with native speakers. Participants in the study discussed how they understood and rated their lives on each item in the index. The discourse conveyed the different shades of meaning associated with the PWI items of life satisfaction and eight domains of life. The study found that PWI items related to material well-being, living standards, achievements in life and future (financial) security were best understood. The PWI items referring to personal relationships and community connectedness were seen as nearly identical in meaning. Both translation and cultural factors may be responsible for the conflation of these two items. Noteworthy is that the PWI item on religion and spirituality was seen to embrace both Christian and traditional African beliefs and practice, without prejudice. A new item on daily activities was piloted with good results. The focus group study also showcased the manner in which discussants worked with the rating scale and drew on social comparisons when evaluating global and domain satisfactions. It is concluded that cognitive testing of PWI items in different translations will serve not only to appraise the validity of PWI ratings across cultures, but importantly also opens a window on what makes for a life of quality in a particular social setting.
- Full Text: false
- Date Issued: 2015
Towards shaping the field: theorising the knowledge in a formal course for academic developers
- Authors: Vorster, Jo-Anne , Quinn, Lynn
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66578 , vital:28966 , https://doi.org/10.1080/07294360.2015.1070126
- Description: publisher version , In recent years there have been calls both for building the knowledge base of academic development (AD) and for systematic induction of newcomers to the field if AD is to advance as a professional and an academic field. Despite the importance and complexity of AD, induction of novice academic developers remains mostly informal and predominantly focuses on the practices of the field. We argue that more-experienced academic developers have an obligation to provide formal and systematic routes into the field and its knowledge base than is currently the case. One way of doing this is through offering a formal course for growing the next generation of academic developers. Such a course could equip newcomers with a more solid and shared knowledge base, thus contributing to shaping the epistemic spine of AD. In this paper, using Maton's Legitimation Code Theory, we offer an analysis of an existing course aimed at equipping novices with the theoretical and practical knowledge to enable them to solve some of the problems in higher education. From this analysis have emerged general principles that could inform the selection, sequencing and pacing of knowledge in a formal course for academic developers.
- Full Text: false
- Date Issued: 2015
Unfulfilled promises: the implementation of the Recognition of Customary Marriages Act in South Africa
- Authors: Mwambene, Lea , Kruuse, Helen
- Date: 2015
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/129175 , vital:36227 , DOI:10.1093/lawfam/ebv009
- Description: The Recognition of Customary Marriages Act 1998 (the Act) regulates all matters in relation to customary marriages in South Africa. The Act was specifically enacted to recognize customary marriages as valid, but was also passed to address gender inequality by regulating various customary marriage aspects, the most important being registration and proprietary consequences. This article reflects on the findings of a qualitative study on the registration and proprietary consequences of customary marriages conducted in two rural sites in the Eastern Cape (the former Ciskei and Transkei) and one urban site in the Western Cape (Khayelitsha). These findings show two important issues. First, that access to resources upon death of a spouse or divorce is often premised on successful registration of the marriage, which seldom occurs. Secondly, that the continued patriarchal nature of customary marriages stands in the way of realizing gender equality, particularly in relation to the proprietary consequences of a marriage. As a result, we make possible recommendations of how the Act’s objectives can be met.
- Full Text: false
- Date Issued: 2015