A5046947479- Wildlife Ecology and Conservation
- Animal Behavior and Welfare Studies
- Species Distribution and Climate Change
- Wildlife-Road Interactions and Conservation
- Rangeland Management and Livestock Ecology
- Animal Behavior and Reproduction
- Animal Ecology and Behavior Studies
- Genetic and phenotypic traits in livestock
- Genetic diversity and population structure
- Primate Behavior and Ecology
- Ecology and Vegetation Dynamics Studies
- African Botany and Ecology Studies
- Human-Animal Interaction Studies
- Ecology and biodiversity studies
- Forest ecology and management
- Botany and Plant Ecology Studies
- Turtle Biology and Conservation
- Livestock Farming and Management
- Marine animal studies overview
- Avian ecology and behavior
- Soil erosion and sediment transport
- Plant and animal studies
- Agroforestry and silvopastoral systems
University of Cape Town
2006-2024
Panthera Corporation
2018-2024
Rhodes University
2014-2023
Ecological Society of America
2019
Abstract Although interspecific competition plays a principal role in shaping species behaviour and demography, little is known about the population‐level outcomes of between large carnivores, mechanisms that facilitate coexistence. We conducted multilandscape analysis two widely distributed, threatened carnivore competitors to offer insight into coexistence strategies assist with species‐level conservation. evaluated how interference affects occupancy, temporal activity population density...
Abstract Human impact is near pervasive across the planet and studies of wildlife populations free anthropogenic mortality are increasingly scarce. This particularly true for large carnivores that often compete with and, in turn, killed by humans. Accordingly, densities at which carnivore occur naturally, their role shaping and/or being shaped natural processes, frequently unknown. We undertook a camera‐trap survey Sabi Sand Game Reserve (SSGR), South Africa, to examine density, structure...
Abstract The global decline of large carnivores demands effective and efficient methods to monitor population status, particularly using non‐invasive methods. Density is among the most useful metrics status because it directly comparable across space time. Unfortunately, density difficult measure reliably, especially for mobile, cryptic species. Recently, efforts have turned approximating based on its relationship more readily estimable indices occurrence. However, between such contingent...
Apex predator reintroductions have proliferated across southern Africa, yet their ecological effects and proposed umbrella benefits of associated management lack empirical evaluations. Despite a rich theory on top-down ecosystem regulation via mesopredator suppression, knowledge gap exists relating to the influence lions ( Panthera leo ) over Africa's diverse mesocarnivore (less than 20 kg) communities. We investigate how geographical variation in community richness occupancy South African...
Abstract Effective conservation requires understanding the processes that determine population outcomes. Too often, we assume protected areas conserve wild populations despite evidence they frequently fail to do so. Without large‐scale studies, however, cannot what relationships are product of localized conditions versus general patterns inform more broadly. Leopards’ ( Panthera pardus ) basic ecology is well studied but little research has investigated anthropogenic effects on leopard...
Predator populations persisting in desert landscapes may be especially vulnerable to habitat fragmentation and changing climates, but many are chronically understudied at risk of extirpation. The Asiatic subspecies caracal, Caracal caracal schmitzi, inhabit the mountainous western southern Arabian Peninsula, they thought decline across region. In Saudi Arabia, a recent extensive study used camera traps face-to-face questionnaires survey leopards other medium- large-size mammals,...
Abstract With human influences driving populations of apex predators into decline, more information is required on how factors affect species at national and global scales. However, camera-trap studies are seldom executed a broad spatial scale. We demonstrate uniting fine-scale utilizing data non-target an effective approach for broadscale assessments through case study the brown hyaena Parahyaena brunnea . collated from 25 protected unprotected sites across South Africa largest...
Abstract The angulate tortoise Chersina angulata is unique among South African tortoises in having a single unpaired gular (extension of the ventral plastron) that used to ram and overturn rival conspecifics. This behaviour has earned it reputation ‘fighting tortoise’, this paper we test hypothesis morphology result intrasexual selection. Research was carried out on population Dassen Island September 2004. Tortoises were captured processed (body mass five morphological measurements) situ...
Abstract The size of the home range a mammal is affected by numerous factors. However, in normally solitary, but polygynous, Leopard (Panthera pardus), and maintenance complicated their transitory social grouping behavior, which dependent on life history stage and/or reproductive status. In addition, necessity to avoid competition with conspecifics other large predators (including humans) also impacts upon size. We used movement data from 31 sites across Africa, comprising 147 individuals...
Abstract The Arabian leopard Panthera pardus nimr is categorized as Critically Endangered, with < 200 individuals estimated to remain in the wild. Historically species ranged over an extensive area of western Saudi Arabia but, no confirmed sightings since 2014, investigating potential continued presence and distribution critical conservation importance. We present results a comprehensive survey designed detect any remaining populations Arabia. conducted 14 surveys, deploying 586...
Abstract Spatial patterns of and competition for resources by territorial carnivores are typically explained two hypotheses: 1) the defence hypothesis 2) searching efficiency hypothesis. According to hypothesis, when food abundant, carnivore densities will be high home ranges small. In addition, can maximise their necessary energy intake with minimal defence. At medium resource levels, larger needed, it become more economically beneficial defend against a lower density competitors. low...
Abstract Variation in home range size exists among and within wildlife populations. Home variation may be driven by both intrinsic extrinsic factors, including sex, food reproductive resources, density competition. In this study, we investigated the sex‐specific impacts of prey conspecific competition on leopard Panthera pardus at two spatio‐temporal scales Sabi Sand Game Reserve, South Africa. Male ranges were more than twice those females, line with expectations for a solitary, polygamous...
The transformation and fragmentation of natural land are considered to be major drivers biodiversity loss local extinctions. In this study we compare medium-to-large mammal diversity on rangeland, game farms within the Little Karoo, South Africa. Mammal was assessed using camera traps set up at 141 sites, compared across three land-use types. There were no significant differences in types, although rangelands typically supported fewer species. Game had similar species richness areas,...
Wildlife population density estimates provide information on the number of individuals in an area and influence conservation management decisions. Thus, accuracy is vital. A dominant feature many landscapes globally fencing, yet implications fence permeability estimation using spatial capture-recapture modelling are seldom considered. We used camera trap data from 15 fenced reserves across South Africa to examine brown hyaenas (Parahyaena brunnea). estimated modelled its relationship with a...
<i>African Journal of Wildlife Research</i> is a multidisciplinary journal that has been published since 1971 and covers the scientific, applied, managerial, methodological, sociological issues related to wildlife research.