• Publications
  • Influence
Legal Trade of Africa's Rhino Horns
TLDR
If poaching continues to accelerate, Africa's remaining rhino populations may become extinct in the wild within 20 years, according to the IUCN. Expand
The costs of keeping cool in a warming world: implications of high temperatures for foraging, thermoregulation and body condition of an arid-zone bird.
TLDR
The value of investigations of temperature-dependent behaviour in the context of impacts on body condition is demonstrated, and it is suggested that increasingly high temperatures will have negative implications for the fitness of these arid-zone birds. Expand
Temperatures in Excess of Critical Thresholds Threaten Nestling Growth and Survival in A Rapidly-Warming Arid Savanna: A Study of Common Fiscals
TLDR
The link between daily maximum air temperature (tmax) and breeding success of Kalahari common fiscals (Lanius collaris) is investigated in terms of the daily effect on nestling body-mass gain, and the cumulative effect on size and age of fledglings. Expand
Beak and feather disease virus in wild and captive parrots: an analysis of geographic and taxonomic distribution and methodological trends
TLDR
The evaluation highlights the need for standardised diagnostic tests and more emphasis on studies of wild populations, particularly in view of the intrinsic connection between global trade in companion birds and the spread of novel BFDV strains into wild populations. Expand
Phenological shifts assist colonisation of a novel environment in a range‐expanding raptor
In a rapidly changing world understanding the capacity of populations to adapt to novel environments is increasingly urgent. Timing of breeding can be a highly flexible trait and adjustments in thisExpand
Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities
TLDR
This review of developments since the production of the IUCN Parrot Action Plan published in 2000, identifies areas where critical knowledge is lacking and highlight opportunities to address them. Expand
Trade and conservation implications of new beak and feather disease virus detection in native and introduced parrots
TLDR
The presence of BFDV in wild populations of P. krameri within its native range in Asia and Africa is documented and a high degree of phylogenetic relatedness between viral variants from geographically distant populations suggests recent introductions, likely driven by global trade. Expand
Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community
TLDR
Investigation of patterns of tree use by birds in the southern Kalahari across different times of day and days of varying maximum air temperature found increased preference for trees that provided the greatest density of shade (Boscia albitrunca) on ‘hot’ days. Expand
Beak and feather disease viruses circulating in Cape parrots (Poicepahlus robustus) in South Africa
TLDR
Phylogenetic analysis of BFDV isolates from wild and captive Cape parrots indicated two separate infection events in different populations, which highlights the potential risk of introducing new strains of the virus into the wild population. Expand
Can behaviour buffer the impacts of climate change on an arid-zone bird?
Behavioural thermoregulation, particularly the use of cool microclimates, is one method by which organisms could avoid the worst effects of climate warming. However, retreat into cool microsites,Expand
...
1
2
3
4
...