| mhc class ii diversity of koala (phascolarctos cinereus) populations across their range. | major histocompatibility complex class ii (mhcii) genes code for proteins that bind and present antigenic peptides and trigger the adaptive immune response. we present a broad geographical study of mhcii da β1 (dab) and db β1 (dbb) variants of the koala (phascolarctos cinereus; n=191) from 12 populations across eastern australia, with a total of 13 dab and 7 dbb variants found. we identified greater mhcii variation and, possibly, additional gene copies in koala populations in the north (queensla ... | 2014 | 24690756 |
| pathology of the female reproductive tract in the koala, phascolarctos cinereus (goldfuss), from victoria, australia. | lesions occurred in the female genital tract of 10 of 16 (63%) koalas, phascolarctos cinereus, examined in victoria. inflammation of the uterine horns was seen in all 10 affected koalas; six of these had vaginitis and eight also had salpingitis. cystic dilation of the ovarian bursa, occasionally with hydrosalpinx, was seen in six koalas with concurrent inflammatory lesions of the lower tract. cystic lesions were considered to have developed as chronic sequelae to previous inflammation in the ova ... | 1981 | 7338982 |
| parasitic pneumonia in a koala (phascolarctos cinereus) from victoria, australia. | | 1982 | 7154224 |
| review of animal mycoses in australia. | this review covers the available literature on the mycoses of animals in australia since the last review published in 1967. of the cutaneous infections, dermatophytoses have been recorded in a wide range of animals: cattle, horses, goats, pigs, sheep, cats, dogs, mice, guinea-pigs, rabbits, a lion, kangaroos, a camel, koalas and wallabies. these infections were caused by several species and varieties of the genera, microsporum and trichophyton. eight agents of ringworms have been recorded in the ... | 1990 | 2233984 |
| comparison of the omp i gene of chlamydia psittaci between isolates in victorian koalas and other animal species. | the objective of this study is to compare the strain of chlamydia causing genital infection in koalas from victoria with isolates from other animal species. | 1997 | 9293340 |
| bartonella-like dna detected in ixodes tasmani ticks (acari: ixodida) infesting koalas (phascolarctos cinereus) in victoria, australia. | a total of 42 ticks comprising ixodes tasmani (n = 41) and ixodes trichosuri (n = 1) were collected from wild koalas (phascolarctos cinereus) at the koala convention centre, philip island, victoria, australia and screened for the presence of bartonella using the target gene glta. bartonella-like dna was detected in 4 of the 19 pooled tick samples (21%). all positive ticks were male. analysis of partial sequences for the glta gene indicated the presence of a bartonella-related species similar to ... | 2009 | 19271994 |
| koala retrovirus genotyping analyses reveal a low prevalence of korv-a in victorian koalas and an association with clinical disease. | koala retrovirus (korv) is undergoing endogenization into the genome of koalas in australia, providing an opportunity to assess the effect of retrovirus infection on the health of a population. the prevalence of korv in north-eastern australia (queensland and new south wales) is 100 %, whereas previous preliminary investigations in south-eastern australia (victoria) suggested korv is present at a lower prevalence, although the values have varied widely. here, we describe a large study of free-ra ... | 2017 | 28266284 |
| failure to respond to food resource decline has catastrophic consequences for koalas in a high-density population in southern australia. | understanding the ability of koalas to respond to changes in their environment is critical for conservation of the species and their habitat. we monitored the behavioural response of koalas to declining food resources in manna gum (eucalyptus viminalis) woodland at cape otway, victoria, australia, from september 2011 to november 2013. over this period, koala population density increased from 10.1 to 18.4 koalas.ha-1. as a result of the high browsing pressure of this population, manna gum canopy ... | 2016 | 26735846 |
| activity patterns of free-ranging koalas (phascolarctos cinereus) revealed by accelerometry. | an understanding of koala activity patterns is important for measuring the behavioral response of this species to environmental change, but to date has been limited by the logistical challenges of traditional field methodologies. we addressed this knowledge gap by using tri-axial accelerometer data loggers attached to vhf radio collars to examine activity patterns of adult male and female koalas in a high-density population at cape otway, victoria, australia. data were obtained from 27 adult koa ... | 2013 | 24224050 |
| koalas (phascolarctos cinereus) from queensland are genetically distinct from 2 populations in victoria. | the koala (phascolarctos cinereus) suffered population declines and local extirpation due to hunting in the early 20th century, especially in southern australia. koalas were subsequently reintroduced to the brisbane ranges (br) and stony rises (sr) by translocating individuals from a population on french island descended from a small number of founders. to examine genetic diversity and north-south differentiation, we genotyped 13 microsatellite markers in 46 wild koalas from the br and sr, and 2 ... | 2016 | 27515769 |
| mitochondrial genome sequencing reveals potential origins of the scabies mite sarcoptes scabiei infesting two iconic australian marsupials. | debilitating skin infestations caused by the mite, sarcoptes scabiei, have a profound impact on human and animal health globally. in australia, this impact is evident across different segments of australian society, with a growing recognition that it can contribute to rapid declines of native australian marsupials. cross-host transmission has been suggested to play a significant role in the epidemiology and origin of mite infestations in different species but a chronic lack of genetic resources ... | 2017 | 29183283 |
| outbreaks of sarcoptic mange in free-ranging koala populations in victoria and south australia: a case series. | to describe outbreaks of sarcoptic mange caused by sarcoptes scabiei in free-ranging koalas in victoria (december 2008 to november 2015) and south australia (october 2011 to september 2014). | 2017 | 28653387 |
| identification of unusual chlamydia pecorum genotypes in victorian koalas (phascolarctos cinereus) and clinical variables associated with infection. | chlamydia pecorum infection is a threat to the health of free-ranging koalas (phascolarctos cinereus) in australia. utilizing an extensive sample archive we determined the prevalence of c. pecorum in koalas within six regions of victoria, australia. the ompa genotypes of the detected c. pecorum were characterized to better understand the epidemiology of this pathogen in victorian koalas. despite many studies in northern australia (i.e. queensland and new south wales), prior chlamydia studies in ... | 2016 | 26932792 |
| chlamydia pecorum infection in free-ranging koalas ( phascolarctos cinereus ) on french island, victoria, australia. | we detected chlamydia pecorum in two koalas ( phascolarctos cinereus ) from a closed island population in victoria, australia, previously free of chlamydia infection. the ompa and multilocus sequence type were most closely related to published isolates of livestock rather than koala origin, suggesting potential cross-species transmission of c. pecorum . | 2016 | 26981690 |
| molecular detection of rickettsia, coxiella and rickettsiella dna in three native australian tick species. | three australian native animal species yielded 60 samples composed of three indigenous ticks. hosts included twelve koalas, two echidnas and one wombat from victoria, and ticks were of the species ixodes tasmani (n = 42), bothriocroton concolor (n = 8) and b. auruginans (n = 10), respectively. pcr screening and sequencing detected a species of coxiella, sharing closest sequence identity to c. burnetii (>98%), in all b. auruginans, as well as a species of rickettsia, matching closest to r. massil ... | 2009 | 19296229 |
| levels of trace elements in the liver and diet of free-living koalas, phascolarctos cinereus (goldfuss). | the mean liver concentrations of copper, manganese, zinc and cobalt were 0.25, 0.20, 2.97 mmol/kg and 2.81 mumol/kg respectively in free-living koalas in victoria, australia. the mean plasma copper concentration was 9.2 mmol/liter which was somewhat below the level in other hindgut fermenters. the mean concentrations of copper, manganese and zinc in their diet (eucalyptus spp.) were 0.08, 4.46 and 0.27 mmol/kg respectively. analysis of the data established a significant correlation between the a ... | 1984 | 6492324 |
| conservation genetics of the koala (phascolarctos cinereus): low mitochondrial dna variation amongst southern australian populations. | koala (phascolarctos cinereus) populations in southern australia have a history of bottlenecks-earlier this century the species became extinct in south australia, and almost so in victoria. subsequently large numbers of animals from island populations (founded from very few animals) have been translocated back to mainland sites and to other islands in the region. as part of a larger study of the genetic structure of koala populations in southern australia, we have undertaken a survey of mitochon ... | 1997 | 9164173 |
| causes of mortality and morbidity of wild koalas, phascolarctos cinereus (goldfuss), in victoria, australia. | between 1975 and 1980, necropsy investigations were conducted on 44 wild koalas (24 males, 20 females) from several localities in victoria, australia. an additional 11 (5 males, 6 females) were presented for clinical appraisal and treatment. traumatic injuries resulting from motor vehicle accidents and intra-specific conflict were the commonest reason for submission (19 of 55; 35%). keratoconjunctivitis (8 of 55; 15%), ascending urinary tract infections (6 of 20 females; 30%), ascending genital ... | 1983 | 6887434 |