A5031624710- Marine animal studies overview
- Wildlife Ecology and Conservation
- Marine and coastal plant biology
- Underwater Acoustics Research
- Primate Behavior and Ecology
- Arctic and Antarctic ice dynamics
- Fish Ecology and Management Studies
- Avian ecology and behavior
- Isotope Analysis in Ecology
- Marine and fisheries research
- Identification and Quantification in Food
- Animal Behavior and Welfare Studies
- Animal Vocal Communication and Behavior
- Cephalopods and Marine Biology
- Occupational Therapy Practice and Research
- Pressure Ulcer Prevention and Management
- melanin and skin pigmentation
- Polar Research and Ecology
- Human-Animal Interaction Studies
- Pelvic floor disorders treatments
- Stoma care and complications
University of Pretoria
1999-2024
Mammal Research Institute
2017-2019
Killer whales are apex predators with temporally and spatially varying distributions throughout the world's oceans. Their ecology behaviour poorly understood in most regions due to limited research, often because of logistical challenges. Here, we used a passive acoustic monitoring device investigate seasonal occurrence diel vocalizing killer around remote sub-Antarctic Prince Edward Islands (PEIs), Southern Ocean. showed patterns that varied seasonally relation their prey abundance social...
Most marine apex predators are keystone species that fundamentally influence their ecosystems through cascading top-down processes. Reductions in worldwide predator abundances, attributed to environmental- and anthropogenic-induced changes prey availability negative interactions with fisheries, can have far-reaching ecosystem impacts. We tested whether the survival of killer whales (
We studied the diet of Cape clawless otters (Aonyx capensis) at three sites along eastern and southern coast South Africa to assess possible spatial variation a community species richness biomass gradient associated with rocky shores. A total 309 spraints representing two seasons (summer 2013/2014 winter 2014) were collected subsequently analysed. The percentage occurrence dry mass numerous prey categories compared between seasons. Variation in importance items was found sites, whilst no...
Human-wildlife conflict is likely to increase as urbanisation increases. African clawless otters, Aonyx capensis, and spotted-necked Hydrictis maculicollis, are illegally persecuted for their perceived role in reducing trout artificially stocked habitats South Africa. The diet of otters has been investigated, but little known about the these habitats. Using stable isotope techniques, we investigated occupying with trout. Stable analyses revealed that included equal proportions crab followed...
Killer whales, Orcinus orca , are a cosmopolitan species with large ecological and demographic variation across populations. Population‐specific studies are, therefore, crucial in accurately assessing the status trends of local killer whale Such require long‐term datasets remain scarce, particularly Southern Ocean where detailed population specific have only been conducted at single archipelago – Îles Crozet. Here, we analysed 12 years capture–recapture data (comprising nearly 90 000...
Latrine use and behaviour at latrines have been studied in numerous otter species, but not African clawless otters, Aonyx capensis . We set up trail cameras two near Dullstroom, South Africa. On several occasions, we observed performing scent marking behaviours that included body rubbing on a bare patch of ground deposition anal secretions while jiggle dancing. Although has documented this it associated with marking, dancing during reported. Given the context of these observations, speculate...
Abstract We report on an occurrence of ocular albinism in sub-Antarctic fur seal ( Arctocephalus tropicalis ) pups born Marion Island, Prince Edward Archipelago. While previous observations have documented with atypical lanugo pelage colorations, this is the first case involving hypopigmentation both and other tissues, including eyes nails. During austral summer 2021/22, we encountered four displaying anomalous pigmentation. These individuals were found along two beaches island’s western...
Abstract Understanding the diving behavior of semiaquatic mammals, particularly in relation to estimated aerobic dive limits and diet, is important understand their adaptability potential vulnerability changes prey type distribution. The African clawless otters, Aonyx capensis, spotted-necked Hydrictis maculicollis, poorly known, no estimates performance targeted calculated have been reported previously for freshwater environments. We investigated both these otter species environments within...
The field trip during which our observation was made was supported through a Research Development Programme funding grant from the University of Pretoria.
All physiotherapists have a responsibility not only to their patients but also colleagues and health care funding sources provide interventions that are sound in theory supported by well-controlled experimental studies. The principles of evidence-based practice should be implemented an undergraduate curriculum order assist students acquire skills obtain use relevant information. aim this paper is present model integrate the activities patient assessment information processing, critical...
Problems involving the urinary tract, particularly incontinence, tend to become more common with age. Urinary incontinence is a prevalent problem in elderly and its medical, social economic costs are significant. Patients often too embarrassed or unwilling seek treatment, as it seen an inevitable corollary of old age, not considered life-threatening ailment also because they assume that untreatable. The physiotherapist can play very important role both prevention management but sadly, few...