Publications

TitleAbstractYear
Filter
PMID
Filter
some protozoan parasites of wild birds from the vicinity of onderstepoort.the protozoan parasites of wild birds from the vicinity of onderstepoort are recorded. new host records for the republic of south africa are: haemoproteus in threskiornis aethiopicus, francolinus swainsonii, columba guinea and streptopelia senegalensis; leucocytozoon in anas erythrorhyncha, netta erythrophthalma, c. guinea and passer domesticus and plasmodium in numida meleagris.1975810756
avian tuberculosis in naturally infected captive water birds of the ardeideae and threskiornithidae families studied by serotyping, is901 rflp typing, and virulence for poultry.avian tuberculosis was detected in one flock of 38 water birds of the families ardeideae (n = 20) and threskiornithidae (n = 18). mycobacterium avium subsp. avium (maa, serotype 1, genotype is901+ and is1245+) was more often (p = 0.01) detected in tissue and/or faecal samples in 18 (90.0%) birds form the ardeideae family: little egret (egretta garzetta), buff-backed heron (bubulcus ibis), great white egret (egretta alba), and bittern (botaurus stellaris) in comparison to two (11.1%) birds from t ...200717056210
polybrominated diphenyl ethers and hbcd in bird eggs of south africa.in this paper, the first data on brominated flame retardants (bfrs), in particular polybrominated diphenyl ethers (pbdes) and hexabromocyclododecane (hbcd) in eggs of bird species from south africa are described (n=43). concentrations of pbdes were detected in all the studied species and in all the geographic areas. highest concentrations of pbdes were measured in bird eggs from the vaal river, which is situated downstream of the most industrialized area in south africa. sum-pbde concentrations ...200818466951
the accidental release of exotic species from breeding colonies and zoological collections.exotic species have often been introduced into a new country in zoological or botanical gardens or on game and fur farms. when accidentally or deliberately released, these alien species can become invasive and have negative impacts on native plant and animal communities and human activities. this article focuses on a selection of such invasive species: principally the american mink (neovison vison), but also the coypu (myocastor coypus), muskrat (ondatra zibethicus), raccoon dog (nyctereutes pro ...201020617652
alien invasive birds.a bird species is regarded as alien invasive if it has been introduced, intentionally or accidentally, to a location where it did not previously occur naturally, becomes capable of establishing a breeding population without further intervention by humans, spreads and becomes a pest affecting the environment, the local biodiversity, the economy and/or society, including human health. european starling (sturnus vulgaris), common myna (acridotheres tristis) and red-vented bulbul (pycnonotus cafer) ...201020919578
susceptibility and status of avian influenza in ostriches.the extensive nature of ostrich farming production systems bears the continual risk of point introductions of avian influenza virus (aiv) from wild birds, but immune status, management, population density, and other causes of stress in ostriches are the ultimate determinants of the severity of the disease in this species. from january 2012 to december 2014, more than 70 incidents of aiv in ostriches were reported in south africa. these included h5n2 and h7n1 low pathogenicity avian influenza (lp ...201627309069
organochlorine contaminants in cormorant, darter, egret, and ibis eggs from south africa.during the last 15 years, no research has been published on the levels of pesticides in bird eggs from south africa, despite the high levels found previously. we analysed eggs from african darter, cattle egret, reed cormorant, african sacred ibis, as well as single eggs from some other species, and found hcb, ddts, hchs, chlordanes and pcbs at detectable levels. the presence of mirex in all species was unexpected, since this compound was never registered in south africa. it also seemed as if ter ...200818001817
[the cases of teratology in mallophaga of south africa].the following types ofteratology were found in the collection of 1278 individuals of mallophaga coming from the birds of south africa origin: deformity clypeus in quadraceps kilimandjarensis (kell.) from stephanibyx coronatus (burch.), partial atrophy of one of the antennae of two males q. kilimandjarensis and abdomen plates deformity of two females q. kilimandjarensis, in male and female quadraceps chorleyi timm. from hoplopterus armatus (burch.), in female saemundssonia africana timm. from ste ...200116888959
mitogenomic diversity in sacred ibis mummies sheds light on early egyptian practices.the ancient catacombs of egypt harbor millions of well-preserved mummified sacred ibis (threskiornis aethiopicus) dating from ~600bc. although it is known that a very large number of these 'votive' mummies were sacrificed to the egyptian god thoth, how the ancient egyptians obtained millions of these birds for mummification remains unresolved. ancient egyptian textual evidences suggest they may have been raised in dedicated large-scale farms. to investigate the most likely method used by the pri ...201931721774
correction: the sacred ibis debate: the first test of evolution.[this corrects the article doi: 10.1371/journal.pbio.2005558.].201830352051
the sacred ibis debate: the first test of evolution.in 1798, napoleon bonaparte's army invaded egypt, returning with many treasures including large numbers of sacred ibis mummies. the ancient egyptians revered the ibis and mummified literally millions of them. the french naturalist georges cuvier used these mummies to challenge an emerging idea of the time, namely jean-baptiste lamarck's theory of evolution. cuvier detected no measurable differences between mummified sacred ibis and contemporary specimens of the same species. consequently, he arg ...201830260949
a healed femoral fracture of threskiornis aethiopicus (sacred ibis) from the animal cemetery at abydos, egypt.the bolton museum and archive service collection holds an ibis mummy from abydos, which was partially unwrapped at one time, extracting two femora. the left is anatomically complete, yet the right exhibits an oblique fracture that had healed at an angle of 90°. the radiographic examination shows that the fracture had completely united. the significant amount of bone remodelling suggests a period of months between the occurrence of the fracture and the death of the bird. there are two possible sc ...201229539353
trace element contamination in tissues of four bird species from the rift valley region, ethiopia.concentrations of ten trace elements (hg, as, cd, pb, co, cr, cu, ni, se and zn) were determined in different tissues (liver, kidney, muscle, heart and brain) of african sacred ibis (threskiornis aethiopicus), hamerkop (scopus umbretta), marabou stork (leptoptilos crumeniferus) and great white pelican (pelecanus onocrotalus) inhabiting the ethiopian rift valley region. there were differences in trace element patterns among the bird species. significantly (pā€‰<ā€‰0.05) higher concentrations of cd (5 ...201728035427
isolation of a new chlamydia species from the feral sacred ibis (threskiornis aethiopicus): chlamydia ibidis.investigations conducted on feral african sacred ibises (threskiornisaethiopicus) in western france led to the isolation of a strain with chlamydial genetic determinants. ultrastructural analysis, comparative sequence analysis of the 16s rrna gene, ompa, and of a concatenate of 31 highly conserved genes, as well as determination of the whole genome sequence confirmed the relatedness of the new isolate to members of the chlamydiaceae, while, at the same time demonstrating a unique position outsid ...201324073223
from adaptive management to adjustive management: a pragmatic account of biodiversity values.the conservation of biodiversity poses an exceptionally difficult problem in that it needs to be effective in a context of double uncertainty: scientific (i.e., how to conserve biodiversity) and normative (i.e., which biodiversity to conserve and why). although adaptive management offers a promising approach to overcome scientific uncertainty, normative uncertainty is seldom tackled by conservation science. we expanded on the approach proposed by adaptive-management theorists by devising an inte ...201020151986
is the sacred ibis a real threat to biodiversity? long-term study of its diet in non-native areas compared to native areas.this paper presents the results of a 14-year study about the diet of the sacred ibis in its main introduction area in france and its impact on native bird species, and compares the data to literature from its native area. during an initial period (1993-2004), the diet was essentially composed of invertebrates such as common aquatic insects (correlated with flooding) or eristalis larvae picked from the mud (a vacant food niche in france), while scraps of meat taken from rubbish dumps were minor. ...201323849724
circular external fixator placement for repair of an open distal tarsometatarsal fracture in an african sacred ibis (threskiornis aethiopicus).an adult male african sacred ibis (threskiornis aethiopicus) was diagnosed with an open right distal tarsometatarsal fracture on physical examination and radiographs. external coaptation in the form of an l splint failed to stabilize the fracture appropriately and additional fixation options were explored. the location of the fracture near the articulation between the tarsometatarsus and the hallux, the short distal fracture segment, and decreased viability of the foot precluded the use of previ ...201526667561
on a new cestode, paradilepis maleki sp. nov. (diplepididae), from a sacred ibis in the sudan. 196114455519
Displaying items 1 - 18 of 18