| characterization of pigeon paramyxoviruses (newcastle disease virus) isolated in south africa from 2001 to 2006. | pigeon paramyxovirus type 1 (ppmv-1), a variant of newcastle disease virus that primarily affects doves and pigeons has been isolated in south africa since the mid-1980s. phylogenetic evidence indicates that pigeon paramyxovirus type 1 viruses were introduced into south africa on multiple occasions, based on the presence of two separate lineages, 4bi and 4bii, that have been circulating in europe and the far east since the early 1990s. during 2006, a ppmv-1 virus was isolated from an african gro ... | 2008 | 18788208 |
| permanent genetic resources added to molecular ecology resources database 1 august 2010-30 september 2010. | this article documents the addition of 229 microsatellite marker loci to the molecular ecology resources database. loci were developed for the following species: acacia auriculiformis × acacia mangium hybrid, alabama argillacea, anoplopoma fimbria, aplochiton zebra, brevicoryne brassicae, bruguiera gymnorhiza, bucorvus leadbeateri, delphacodes detecta, tumidagena minuta, dictyostelium giganteum, echinogammarus berilloni, epimedium sagittatum, fraxinus excelsior, labeo chrysophekadion, oncorhynch ... | 2011 | 21429127 |
| sex determination in 58 bird species and evaluation of chd gene as a universal molecular marker in bird sexing. | the aim of this research was to test the chd gene (chromo helicase dna-binding gene) as a universal molecular marker for sexing birds of relatively distant species. the chd gene corresponds to the aim because of its high degree of conservation and different lengths in z and w chromosomes due to different intron sizes. dna was isolated from feathers and the amplification of the chd gene was performed with the following sets of polymerase chain reaction (pcr) primers: 2550f/2718r and p2/p8. sex de ... | 2015 | 22553188 |
| lead toxicosis in a southern ground hornbill bucorvus leadbeateri in south africa. | the southern ground hornbill (bucorvus leadbeateri) has been classified as globally vulnerable and, in south africa, regionally endangered, with a negative population trend. factors contributing to the population decline in south africa are poisoning, electrocution, and illegal capture for trade, coupled with slow reproductive rates and extensive habitat requirements. lead toxicosis is a previously undescribed threat for the population. an adult southern ground hornbill presented with acute lead ... | 2015 | 26771324 |
| mercury concentrations in eggshells of the southern ground-hornbill (bucorvus leadbeateri) and wattled crane (bugeranus carunculatus) in south africa. | in this study, wild hatched eggshells were collected from the nests of threatened wattled crane and south ground-hornbill in an attempt to determine their total hg concentrations. a total of fourteen eggshell samples from both bird species were collected from different study areas in the mpumlanga and kwazulu-natal provinces of south africa. the eggshells were acid digested under reflux and their total hg concentrations were determined using cold-vapour atomic absorption spectrophotometry (cv-aa ... | 2015 | 25600716 |
| polybrominated diphenyl ethers (pbdes) in eggshells of the southern ground-hornbill (bucorvus leadbeateri) and wattled crane (bugeranus carunculatus) in south africa. | this study was undertaken to assess the levels of eight pbde congeners, namely: pbde-17, 47, 100, 99, 154, 153, 183 and 209 in eggshells of southern ground-hornbill (sgh) bucorvus leadbeateri and wattled crane (wc) bugeranus carunculatus obtained from different nesting sites within the eastern savanna of limpopo province and the midlands of kwazulu-natal, respectively. analyses were performed using gas chromatography–mass spectrometry employing the electron impact ionization technique. the resul ... | 2015 | 25463252 |
| spatial occupancy models applied to atlas data show southern ground hornbills strongly depend on protected areas. | determining the range of a species and exploring species--habitat associations are central questions in ecology and can be answered by analyzing presence--absence data. often, both the sampling of sites and the desired area of inference involve neighboring sites; thus, positive spatial autocorrelation between these sites is expected. using survey data for the southern ground hornbill (bucorvus leadbeateri) from the southern african bird atlas project, we compared advantages and disadvantages of ... | 2014 | 24689147 |
| an exploration of cultural beliefs and practices across the southern ground-hornbill's range in africa. | this article explores cultural beliefs and practices related to the southern ground-hornbill (sgh) (bucorvus leadbeateri) in nine southern and east-african countries. | 2014 | 24670253 |
| nest temperature fluctuations in a cavity nester, the southern ground-hornbill. | southern ground-hornbills bucorvus leadbeateri inhabit savanna and bushveld regions of south africa. they nest in the austral summer, which coincides with the wet season and hottest daytime temperatures in the region. they are secondary cavity nesters and typically nest in large cavities in trees, cliffs and earth banks, but readily use artificial nest boxes. southern ground-hornbills are listed as endangered in south africa, with reintroductions into suitable areas highlighted as a viable conse ... | 2017 | 28477906 |
| immunogenicity of newcastle disease vaccine in southern ground-hornbill (bucorvus leadbeateri). | the southern ground-hornbill (bucorvus leadbeateri; hereafter sgh) is endangered in south africa, namibia, and swaziland. through a conservation program established in south africa by the mabula ground hornbill project, wild populations are being re-established by the reintroduction of captive-reared birds. the sgh is susceptible to infection with avian avulavirus 1, which causes newcastle disease (nd). four different vaccines to protect against nd were administered through various vaccination s ... | 2020 | 33099975 |
| habitat preferences of southern ground-hornbills in the kruger national park: implications for future conservation measures. | understanding how a species utilises its habitat, and the processes that give rise to its movements and patterns of space use, is critical for its conservation. southern ground-hornbills bucorvus leadbeateri are listed as endangered in south africa, as a result of habitat loss and persecution. the national species recovery plan lists reintroductions as a suitable conservation action, but highlights "understanding the exact habitat requirements of southern ground-hornbills" as a knowledge gap. in ... | 2020 | 33004900 |
| endocrine correlates of gender and throat coloration in the southern ground-hornbill (bucorvus leadbeateri). | the southern ground-hornbill (sgh) is a cooperatively breeding bird endemic to eastern and southern africa, but is endangered in its southern distributional range. the national conservation restoration program harvests redundant chicks for captive breeding and reintroduction; with sexing and social grouping of the species evaluated by throat-skin coloration, with adult males displaying a completely red color compared to dark blue within the red observed in adult females. however, recent findings ... | 2020 | 32761760 |