A5067291183- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Species Distribution and Climate Change
- Animal Behavior and Reproduction
- Animal Ecology and Behavior Studies
- Wildlife Conservation and Criminology Analyses
- Animal Vocal Communication and Behavior
- Mercury impact and mitigation studies
- Ecology and Vegetation Dynamics Studies
- Heavy Metal Exposure and Toxicity
- Primate Behavior and Ecology
- Wildlife-Road Interactions and Conservation
- Bird parasitology and diseases
- Remote Sensing and LiDAR Applications
- Rangeland and Wildlife Management
- Radio Wave Propagation Studies
- Geographies of human-animal interactions
- Heavy metals in environment
Panthera Corporation
2024
University of Cape Town
2018-2024
BirdLife International
2019-2020
Botswana Predator Conservation Trust
2015-2020
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Abstract The conversion of natural habitats to farmland is a major cause biodiversity loss and poses the greatest extinction risk birds worldwide. Tropical raptors are particular concern, being relatively slow-breeding apex predators scavengers, whose disappearance can trigger extensive cascading effects. Many Africa’s at considerable from habitat conversion, prey-base depletion persecution, driven principally by human population expansion. Here we describe multiregional trends among 42...
Vulture declines are uniquely problematic for socio-ecological systems because they nature's most important scavengers. Intentional and unintentional poisoning, human-wildlife conflict, energy infrastructure, belief-based use, illegal hunting activities remain threats to vulture populations across Africa. Conservation stakeholders have identified evidence that a number of species in particular ecosystems being systematically targeted by poisoning with potentially significant effects on...
Tracking studies are often used to inform conservation plans and actions. However, species have frequently only been tracked in one or a few localities, whereas space use can be remarkably flexible, especially long‐lived with advanced learning abilities. We assessed variability the Critically Endangered Hooded Vulture Necrosyrtes monachus by pooling movement data from three populations across species’ sub‐Saharan range (in South Africa, Botswana, Ethiopia, Kenya, The Gambia Mozambique)....
Hooded Vulture Necrosyrtes monachus populations have declined dramatically in recent years, but we know little about their ecology. We radio-tagged four vultures northern Botswana to gather data on animal movement and home-range patterns. Vultures were primarily sedentary at night. moved similar distances speeds during the wet dry season, travelled over home ranges as measured using minimum convex polygons (MCP), used much smaller core areas (breeding) season. found significant differences...
Raptor research often requires identifying individuals. Researchers place patagial tags on raptors to facilitate such identification. in southern African use two main types of tags: hard plastic ear originally designed for cattle and soft vinyl tags. We deployed both vultures Botswana. Based our observations, we recommend using as they appear be more aerodynamic can read from below when a raptor is soaring, well the bird perched. Cattle sometimes flutter fly only dorsal surface wing visible.
Abstract Leopard ( Panthera pardus ) dispersal is poorly documented. An amalgamation of independent, mixed‐method camera trap data spanning six years provides evidence male leopard across the highly fragmented Overberg region, Western Cape, South Africa. Dispersal distances from four individuals ranged 35.3 to 112.0 km between origin and destination datapoints. modified landscape affirms their adaptability resilience reveals local functional connectivity. We caution against population status...
Abstract Given the current biodiversity crisis, understanding how animals move across a landscape dotted with different anthropogenic threats and consequences of those for is paramount to devising evidence‐based conservation interventions. Vultures roam large areas are highly exposed poisoning, which represents particularly damaging form wildlife crime. In this study, we introduce framework quantifying exposure illustrate an example poisoning risk as threat in endangered African vulture...
Abstract Animals need to adjust their diel activity patterns fulfil energy and social requirements whilst avoiding predation risk environmental constraints. The chacma baboon ( Papio ursinus ) is a highly adjustable primate occupying variety of habitats in southern Africa, yet little known about its different environments. We used camera trap data collected from 2016 2022 29 sites South Africa Zimbabwe characterise the pattern variations baboons biomes (savanna, nama-karoo, fynbos, forest,...