Introduction

2017 ◽  
Author(s):  
M.G.L. Mills ◽  
M.E.J. Mills
Keyword(s):  
South Africa ◽  
Arid Region ◽  
Statistical Tests ◽  
Distribution Range ◽  
Individual Identification ◽  
Behavioural Ecology ◽  
Main Study ◽  
Doubly Labelled Water ◽  
Data Loggers ◽  
Prime Objective

Most cheetah studies have been confined to mesic savannahs, yet much of its distribution range covers arid systems. The prime objective in this study was to examine the species’ adaptations to an arid region, to compare the results with those from other cheetah studies, especially from the Serengeti, and to analyse the data within the framework of carnivore population and behavioural ecology. The study was conducted in the Kgalagadi Transfrontier Park South Africa/Botswana, an area receiving 180–250 mm rainfall per year. Tracking spoor with the help of Bushmen trackers and continuous follows of 21 VHF radio-collared cheetahs were the main study methods used. These were supported by photographic records for individual identification, DNA studies for genetic aspects including paternity, and the use of doubly labelled water and the fitting of miniature data loggers for energetic studies. The statistical tests used to analyse the data are described.

scholarly journals Photography of Trichoptera in flight

Zoosymposia ◽  
2011 ◽  
Vol 5 (1) ◽  
pp. 297-318
Author(s):  
W. Geoff McIlleron ◽  
Ferdinand C. De Moor
Keyword(s):  
South Africa ◽  
Beat Frequency ◽  
Behavioural Ecology ◽  
Wing Beat ◽  
Paper Briefly ◽  
High Quality ◽  
Flying Insects ◽  
Single Lens ◽  
A Site ◽  
Selection Of

Whereas photography of insects at rest is used for a wide variety of purposes, including illustrating publications and aiding their identification, photography of insects in flight is more challenging and little practiced. This paper describes a system that uses a digital single-lens-reflex camera combined with commercial-level flashes (with electronic power settings to give very short exposures) and simple electronics in a rig that can be used to capture high quality images of night-flying insects. With such a rig, hundreds of images of free flying Trichoptera have been obtained. Preliminary observations of night-flying Athripsodes bergensis (Leptoceridae) indicate that this system could be used for studying the mechanics of flight, wing beat frequency, aerodynamics, flying speed, aerial activity, and behavioural ecology of night-flying insects in their natural environment.      This paper briefly describes the technique as applied at a site on the banks of the Groot River in the southern Cape region of South Africa between October 2008 and April 2009 and presents a selection of the images obtained.

scholarly journals Households’ Adaptation to Climate Change Hazards in Semi-Arid Region of Mopani, South Africa

2021 ◽  
Author(s):  
Musa Yusuf Jimoh ◽  
Peter Bikam ◽  
Hector Chikoore ◽  
James Chakwizira ◽  
Emaculate Ingwani
Keyword(s):  
Climate Change ◽  
South Africa ◽  
Climate Change Adaptation ◽  
Urban Areas ◽  
Arid Region ◽  
Adaptive Systems ◽  
Adaptation To Climate Change ◽  
Temperature And Precipitation ◽  
Semi Arid Region ◽  
Semi Arid

New climate change realities are no longer a doubtful phenomenon, but realities to adapt and live with. Its cogent impacts and implications’ dispositions pervade all sectors and geographic scales, making no sector or geographic area immune, nor any human endeavor spared from the associated adversities. The consequences of this emerging climate order are already manifesting, with narratives written beyond the alterations in temperature and precipitation, particularly in urban areas of semi-arid region of South Africa. The need to better understand and respond to the new climate change realities is particularly acute in this region. Thus, this chapter highlights the concept of adaptation as a fundamental component of managing climate change vulnerability, through identifying and providing insight in respect of some available climate change adaptation models and how these models fit within the premises and programmes of sustainable adaptation in semi-arid region with gaps identification. The efforts of governments within the global context are examined with households’ individual adaptation strategies to climate change hazards in Mopani District. The factors hindering the success of sustainable urban climate change adaptation strategic framework and urban households’ adaptive systems are also subjects of debate and constitute the concluding remarks to the chapter.

The status of the races of the graceful crag lizard, Pseudocordylus capensis, from South Africa

1992 ◽  
Vol 13 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Y.M. Herselman ◽  
J.H. Van Wyk ◽  
P. le F.N. Mouton
Keyword(s):  
South Africa ◽  
Geographical Variation ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
Distribution Range ◽  
The Status ◽  
Formal Taxonomy ◽  
New Distribution

AbstractTo evaluate the taxonomic status of the races of the graceful crag lizard, Pseudocordylus capensis, geographical variation in 44 external morphological characters was determined, using 97 specimens from 31 localities. Two different epiphenotypes predominate in the northern and southwestern parts of the distribution range. These epiphenotypes are, however, connected by a continuum of variation. It is therefore suggested that the recognition of races be abandoned in the formal taxonomy. Several new distribution records for the species are provided.

scholarly journals Trends in behavioural ecology: Putting South African research in a global perspective

2018 ◽  
Vol 114 (5/6) ◽  
Author(s):  
Aliza le Roux
Keyword(s):  
South Africa ◽  
South African ◽  
Animal Cognition ◽  
Leading Edge ◽  
Global Perspective ◽  
Behavioural Ecology ◽  
Global Trends ◽  
Publication Patterns ◽  
Global Priority ◽  
Local Research

South Africa remains at the leading edge of scientific publishing on the African continent, yet few analyses of publication patterns exist outside the biomedical field. Considering the large number of protected areas and mammalian guilds within the country, I examined trends in South African ecological research as it pertains to the behaviour of mammals. I assessed the topics and taxonomic focus of mammalogists at South African institutes over the span of 15 years (2001–2015), and contrasted local research with the shifting focus of international behavioural research. This review of more than 1000 publications indicates that South African based researchers exhibit a strong tendency towards field-based research, as opposed to laboratory-centred experiments. In terms of topical focus, local ecologists place significant weight on the behavioural categories of mating, social and foraging behaviour – reflecting a global priority for these topics. This finding contrasts with an increased emphasis on animal cognition and communication research in the international research arena, including field-based studies on these themes. I make suggestions on how behavioural ecologists in South Africa can align themselves with global trends while also continuing to distinguish those facets that make South African behavioural ecology unique.

scholarly journals Are smallholder farmers’ perceptions of climate variability supported by climatological evidence? Case study of a semi-arid region in South Africa

2020 ◽  
Vol 12 (5) ◽  
pp. 571-585 ◽  
Author(s):  
Maropene Tebello Rapholo ◽  
Lawrence Diko Makia
Keyword(s):  
South Africa ◽  
Climate Variability ◽  
Arid Region ◽  
Smallholder Farmers ◽  
Linear Trend ◽  
Meteorological Data ◽  
Sub Saharan Africa ◽  
Content Type ◽  
Semi Arid Region ◽  
Semi Arid

Purpose Literature contends that not much is known about smallholder farmers’ perceptions of climate variability and the impacts thereof on agricultural practices in Sub-Saharan Africa and South Africa in particular. The purpose of this study is to examine the perceptions of smallholder farmers from Botlokwa (a semi-arid region in South Africa) on climate variability in relation to climatological evidence. Design/methodology/approach The study area is in proximity to a meteorological station and comprises mainly rural farmers, involved in rain-fed subsistence agriculture. Focus group discussions and closed-ended questionnaires covering demographics and perceptions were administered to 125 purposely sampled farmers. To assess farmers’ perceptions of climate variability, their responses were compared with linear trend and variability of historical temperature and rainfall data (1985-2015). Descriptive statistics were used to provide insights into respondents’ perceptions. Findings About 64% of the farmers perceived climate variability that was consistent with the meteorological data, whereas 36% either held contrary observations or were unable to discern. Age, level of education, farming experience and accessibility to information influenced the likelihood of farmers to correctly perceive climate variability. No significant differences in perception based on gender were observed. This study concludes that coping and adaption strategies of over one-third of the farmers could be negatively impacted by wrong perceptions of climate variability. Originality/value This study highlights discrepancies in perceptions among farmers with similar demographic characteristics. To guarantee sustainability of the sector, intervention by government and other key stakeholders to address underlying factors responsible for observed discrepancies is recommended.

Seasonal Field Energetics of the Rufous Rat-Kangaroo (Aepyprymnus-Rufescens)

1992 ◽  
Vol 40 (3) ◽  
pp. 279 ◽  
Author(s):  
IR Wallis ◽  
B Green
Keyword(s):  
New South ◽  
Water Flux ◽  
Behavioural Ecology ◽  
Free Living ◽  
Doubly Labelled Water ◽  
South Wales ◽  
Poor Understanding ◽  
Males And Females ◽  
The Mean ◽  
The Difference

Water flux and field metabolic rate (FMR) were measured by the doubly labelled water (DLW) method in free-living male and female rufous rat-kangaroos Aepyprymnus rufescens near Drake in northern New South Wales. The mean FMR of 499 kJ kg-1 day-1 was similar in winter and summer even though the difference in mean minimum temperatures between the two seasons was 20-degrees-C. Furthermore, we did not find any differences in FMR between males and females even though several females carried large pouch young or had young-at-foot. A poor understanding of the diet and the behavioural ecology of A. rufescens makes ft difficult to explain the similarities between sexes and seasons.

scholarly journals Measuring the effectiveness of the women entrepreneurship programme on potential, start-up and established women entrepreneurs in South Africa

2013 ◽  
Vol 10 (2) ◽  
pp. 160-183 ◽  
Author(s):  
Melodi Botha ◽  
Gideon Niemann ◽  
Jurie Van Vuuren
Keyword(s):  
South Africa ◽  
Women Entrepreneurs ◽  
Statistical Tests ◽  
Management Training ◽  
Training Intervention ◽  
Control Group ◽  
Women Entrepreneurship ◽  
Entrepreneurial Skills ◽  
Start Up ◽  
Experimental Group

The Women Entrepreneurship Programme (WEP) was developed after a need had been identifiedfor such a training intervention. The WEP provides entrepreneurial and business management training to women entrepreneurs. This empirical paper measures the effectiveness of the WEP after the respondents had been through the training intervention. The sample consists of 180 women entrepreneurs, where 116 respondents form the experimental group and 64 respondents the control group. Factor analysis is presented and several statistical tests executed to present the statistically significant differences between the two groups in the sample. The findings highlight the WEP delegates’ acquisition of new entrepreneurial skills and knowledge. Furthermore, the respondents reported an increase in the number of employees, turnover, productivity and profit. It was statistically proven that the WEP is effective in training potential, start-up and established women entrepreneurs in South Africa.

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