| the koala fear questionnaire: a standardized self-report scale for assessing fears and fearfulness in pre-school and primary school children. | the koala fear questionnaire (kfq) is a standardized self-report scale for assessing fears and fearfulness in children aged between 4 and 12 years. the current article presents six studies which examined the reliability and validity of the kfq. study 1 (n=108) demonstrated that the visual fear scales of koala bears as employed in the kfq are highly comparable to the standard 3-point scales that are used in other childhood fear measures. study 2 (n=163) provided support for the convergent validit ... | 2003 | 12711267 |
| molecular phylogenetics of the diprotodontia (kangaroos, wombats, koala, possums, and allies). | mitochondrial nd2 sequences were used to investigate the phylogenetic relationships amongst 31 diprotodontid marsupials (kangaroos, wombats, koala, possums, and allies). nd2 sequences were analyzed separately and in conjunction with available 12s rdna sequences for 22 diprotodontid taxa. phylogenetic analyses consistently identified monophyly for the burramyoidea, phalangeroidea, petauroidea, tarsipedoidea, macropodoidea, and the vombatiformes. like previous molecular and morphological studies, ... | 2002 | 12414305 |
| bony orbital anatomy of the koala (phascolarctos cinereus). | this is the first documented study of the anatomical details of the normal koala orbit. baseline data are established which are necessary for understanding and treating ocular disease in the koala (phascolarctos cinereus). the bony anatomy of the orbit of the koala was examined and described from animals that presented dead or had been euthanized for humane reasons. dissections of the orbital cavity were performed under magnification, and descriptions of the orbital bones were from macerated sku ... | 2002 | 12124906 |
| intraorbital anatomy of the koala (phascolarctos cinereus). | this is the first documented study of the anatomical details of the contents of the normal koala orbit, excluding the bulbus oculi. baseline data were established which are necessary for understanding and treating ocular disease in the koala (phascolarctos cinereus). the anatomy of the orbital contents of the koala were examined and described from animals that presented dead or were euthanized for humane reasons. dissections of the orbital cavity were performed under magnification. polymethyl me ... | 2002 | 12124905 |
| gestational length in the koala, phascolarctos cinereus. | we report a possible case of extended gestation in the koala, phascolarctos cinereus. birth of a pouch young was first observed 127 days after the removal of the male from a multi-female colony at taronga zoo. no other males were present at that time or had access to the facility. head measurements and other growth data collected at the time of detection and over the period of pouch life indicates the time from removal of the male and the date of birth to be between 50 and 77 days. dna fingerpri ... | 2002 | 11943495 |
| the connection between cognitive development and specific fears and worries in normal children and children with below-average intellectual abilities: a preliminary study. | the present study explored the relationship between cognitive development and anxiety phenomena in 4-12-year-old children. fears and worries of normal children (n=176) were compared to those of children with below-average intellectual abilities (children with baia; n=105). we evaluated to what extent level of cognitive development as indexed by a piagetian conservation task was associated with the presence of fears and worries. while normal children and children with baia did not differ with reg ... | 2002 | 11762426 |
| metabolites of dietary 1,8-cineole in the male koala (phascolarctos cinereus). | the in vivo metabolic fate of 1,8-cineole was investigated in six male koalas. koalas were fed ad lib a diet of eucalyptus cephalocarpa leaf with a 1,8-cineole concentration of 2.53+/-0.70% dry mass of leaf, corresponding to a 1,8-cineole intake of 2.4+/-1.1 mmol/kg (3.1+/-1.3 g). urine and faeces were collected for 24 h and metabolites identified by gc-ms and lc-ms. metabolites were quantified before and after hydrolysis with beta-glucuronidase to give free and total levels, respectively. fract ... | 2001 | 11489436 |
| anatomy and development of the koala, phascolarctos cinereus: an evolutionary perspective on the superfamily vombatoidea. | fifteen koalas (phascolarctos cinereus)--5 pouched young from 4 to 6.5 months and 10 adults from 5 to 16.5 years--were analyzed for functional parameters (body composition, limb segment and muscle mass, post-cranial skeletal characters) and developmental expressions (growth of body, brain, musculature). these data were compared with a convergent eutherian, the three-toed sloth, bradypus infuscatus, and with the koala's distant (macropodid; wallabies) and proximate (vombatid; wombats) marsupial r ... | 2001 | 11303907 |
| the structural organisation of sperm head components of the wombat and koala (suborder: vombatiformes): an enigma amongst marsupials. | the sperm head structural organisation of the koala and hairy-nosed wombat, and the effects of varying concentrations of the ionic detergent, triton x-100, on its component parts, were determined by electron microscopy. although alike in form between the 2 species, the sperm nucleus of the former, but not the latter, had nuclear vacuoles and appeared to be more easily dispersed by the triton x-100. the structure of the acrosome of the spermatozoon was similar between the 2 species and, in both, ... | 2001 | 11215768 |
| natural and artificial methods for inducing the luteal phase in the koala (phascolarctos cinereus). | an experiment was conducted in which female koalas were mated for different durations of intromission and ejaculation to confirm that the luteal phase of the oestrous cycle in koalas is induced by the physical act of mating. results showed that induction of a luteal phase in the koala usually required a complete duration of penile thrusting behaviour from the male. it is proposed that induction of a luteal phase in koalas may involve a copuloceptive reflex, triggered by the thrusting of the male ... | 2000 | 11006146 |
| studies of the oestrous cycle, oestrus and pregnancy in the koala (phascolarctos cinereus). | as an integral part of the development of an artificial insemination programme in the captive koala, female reproductive physiology and behaviour were studied. the oestrous cycle in non-mated and mated koalas was characterized by means of behavioural oestrus, morphology of external genitalia and changes in the peripheral plasma concentrations of oestradiol and progestogen. the mean (+/- sem) duration of the non-mated oestrous cycle and duration of oestrus in 12 koalas was 32.9 +/- 1.1 (n = 22) a ... | 2000 | 11006145 |
| the frequency of extramembranous placement of intrauterine pressure catheters. | objective: to determine, and confirm, the frequency of extramembranous placement of intrauterine pressure catheters.methods: it is estimated that 15% of all deliveries in the united states (600,000 deliveries/year) receive intrauterine pressure catheters (iupcs). this study quantifies the frequency of inadvertently placing iupcs between the chorioamnionic membranes and the myometrium. an attempt was made to aspirate amniotic fluid during placement. if amniotic fluid was obtained, the catheter wa ... | 1998 | 10838348 |
| an internet-based learning portfolio in resident education: the koala multicentre programme. | to describe the computerized obstetrics and gynecology automated learning anaalysis (koalatrade mark), a multicentre, internet-based learning portfolio and to determine its effects on residents' perception of their self-directed learning abilities. | 2000 | 10792690 |
| genetic diversity and gene flow among southeastern queensland koalas (phascolarctos cinereus). | habitat fragmentation and destruction associated with the rapid urban and rural development of southeast queensland presents an immediate threat to the survival of koala populations within this region. a sensitive method combining heteroduplex analysis (hda) with temperature gradient gel electrophoresis (tgge) was optimized to detect within-species variation in a mitochondrial dna (mtdna) control-region fragment, approximately 670 bp in length, from the koala. eight different haplotypes were cha ... | 2000 | 10672159 |
| phylogeographic differentiation in the mitochondrial control region in the koala, phascolarctos cinereus (goldfuss 1817). | the koala, phascolarctos cinereus, is a geographically widespread species endemic to australia, with three currently recognized subspecies: p.c. adustus, p.c. cinereus, and p.c. victor. intraspecific variation in the mitochondrial dna (mtdna) control region was examined in over 200 animals from 16 representative populations throughout the species' range. eighteen different haplotypes were defined in the approximately 860 bp mtdna control region, as determined by heteroduplex analysis/temperature ... | 1999 | 10434420 |
| genetic variation of mitochondrial cytochrome b genes among the subspecies of koala, phascolarctos cinereus. | a conserved dna region among the subspecies of koala, of mitochondrial cytochrome b gene, was employed to analyze the genetic variation among 3 available subspecies of koala. this conserved sequence, 307 bp dna, was sequenced using polymerase chain reaction and direct dna sequencing technique. substitutions in the nucleotide sequences were observed, with which koalas can be divided into 3 dna haplotypes subspecies, but the molecular data provided inconsistency with current classification of the ... | 1998 | 9819775 |
| genetic variation in captive koalas (phascolarctos cinereus): parentage determination and individual identification. | highly repeatable randomly amplified polymorphic dna (rapd) markers were developed for parentage studies in the koala (phascolarctos cinereus). of the 25 rapd primers screened, 5 (20.0%) produced 32 repeatable polymorphic rapd bands (average/primer = 6.4 +/- 4.2). a high level of polymorphism was observed for each group of koalas (featherdale, 71.9%; lone pine, 84.4%). all 25 koalas could be uniquely identified using either rapd or microsatellite markers. of the 32 rapd markers generated in koal ... | 1998 | 9775351 |
| production of milk and nutrition of the dependent young of free-ranging koalas (phascolarctos cinereus). | the production of milk by lactating females, and energy expenditure and foliage intake of their dependent young, were investigated in free-ranging koalas. koalas had the lowest mass-specific daily milk-energy production at peak lactation so far recorded in a mammal, but the duration of reproduction was 58% longer than the combined marsupial and eutherian average. as a consequence, the total energy input to reproduction in koalas was similar to that in other mammals. we propose that the prolonged ... | 2017 | 9472812 |
| evaluating a new intrauterine pressure catheter. | to evaluate the performance and verify the safety of the koala intrauterine pressure catheter (iupc) in clinical use. | 1997 | 9284013 |
| energy budget in free-living animals: a novel approach based on the doubly labeled water method. | we provide a theoretical and practical model for the calculation of energy balance of free-living animals using the doubly labeled water method. energy expenditure, metabolizable energy intake, and body energy balance (energy retention, negative or positive) of animals are estimated using co2 production, water influx, and dietary habits. this model accounts for co2 produced from the 1) oxidation of dietary substrates, 2) catabolism of body tissue, and 3) deposition of body energy. we examined th ... | 1997 | 9140038 |
| characteristics of koala (phascolarctos cinereus adustus) semen collected by artificial vagina. | collection of semen using a modified ovine artificial vagina was attempted on 90 occasions from 25 queensland koalas (phascolarctos cinereus adustus). complete ejaculates consisting of a copulatory plug and sperm fraction were collected on 36 occasions (40%) from 19 animals. seventeen of the males produced a complete ejaculate on their first or second service. failure to collect semen (38%) and the collection of partial ejaculates (14.5%) was attributed to lack of sexual interest, aggressive beh ... | 1997 | 9155742 |
| apicoectomy on an incisor tooth of a victorian koala (phascolarctos cinereus victor). | an eight-year-old victorian koala was presented with a discharging mandibular sinus of at least one month duration. on examination, a dental abscess of the right mandibular incisor tooth was found. during the course of endodontic treatment, a size 2 gates glidden bur separated from the shank and was lodged in the canal. due to the anatomy of the tooth the bur could not be removed and an apicoectomy was performed. following the apicoectomy (follow-up period two years), the periapical pathology re ... | 1996 | 9520792 |
| perioperative nursing--a course for the future. | australia is home to a number of endangered species--the koala perhaps being the most well known. i will discuss another familiar species which is nonetheless in danger of extinction--the perioperative registered nurse. my paper will propose a strategy to increase their numbers within their normal habitat of the operating suite. | 1996 | 8974520 |
| histological and immunohistological study of the developing and involuting superficial cervical thymus in the koala (phascolarctos cinereus). | the thymuses of 44 koalas, ranging from less than 30 d to more than 14 y of age, were examined histologically and immunohistologically. the thymuses from 17 of these koalas dying acutely through trauma were regarded as not being significantly affected by disease and formed the basis for study of the normal thymus. most other koalas had chronic illness and, consequently, disease affected (involuted) thymuses. histologically, thymuses showed obvious corticomedullary differentiation with small hass ... | 1996 | 8771407 |
| paternity exclusion in koalas using hypervariable microsatellites. | koala microsatellite loci containing the dinucleotide motif (ca)n were isolated from a size-fractionated (250-500 bp) koala genomic library and sequenced. six locus-specific primer pairs were designed and synthesized for dna amplification using the polymerase chain reaction (pcr). microsatellite genotyping of 12 individuals generated unique "fingerprints" for each koala. all six microsatellite loci were polymorphic, with a mean of 6.5 +/- 0.6 alleles/locus. this level of allelic diversity is cap ... | 2006 | 8830092 |
| the use of isoflurane to anaesthetise koalas (phascolarctus cinereus). | | 1995 | 8825317 |
| the arrangement of gut-associated lymphoid tissues and lymph pathways in the koala (phascolarctos cinereus). | gut-associated lymphoid tissues are poorly developed in koalas. they comprise paired caecocolic lymphoid patches, and a few small mesenteric lymph nodes. the patches lie opposite one another in the lateral gut wall at the junction of the ileum, caecum and proximal colon. the lymphoid parenchyma of the patches consists of a layer of nodules and internodular parenchyma in the submucosa. apoptosis is common in the nodules. the mucosa and lymphoid tissue of each patch is continuous over a caecocolic ... | 1994 | 7559107 |
| seminal characteristics and spermatozoal morphology of captive queensland koalas (phascolarctos cinereus adustus). | viable koala spermatozoa were successfully collected from 8 of 11 captive queensland koalas on 52 of 76 attempts using electroejaculation under general anesthesia. semen characteristics, including sperm concentration, percent progressive sperm motility and nuclear heterogeneity appeared to be similar to those of free-ranging victoria koalas (p.c . victor). two new head morphotypes (type xi and teratoid) were identified, and the incidence of midpiece and principal piece spermatozoal abnormalities ... | 1994 | 16727557 |
| variation in reproductive parameters in the captive male koala (phascolarctos cinereus). | plasma androgen concentration was measured in six mature male koalas over 23 months. during this time, four animals were housed isolated from females. androgen concentration showed a seasonal change, with a nadir about the middle of the year, and began to increase sometime before the start of the breeding season. the concentration was greater when males were housed with females, even when the females were not yet cycling themselves. changes in androgen concentration were not associated with chan ... | 1994 | 7624512 |
| preliminary investigations into the feasibility of freezing koala (phascolarctos cinereus) semen. | | 1993 | 8280027 |
| secondary degenerative arthropathy (osteoarthrosis) of the hip joints in ageing, free-living koalas. | | 1993 | 8257324 |
| renal complications of cystitis in koalas. | | 1993 | 8216100 |
| renal failure in a koala. | | 1993 | 8216099 |
| kangaroo care. | kangaroo care is the practice of holding a small, premature infant, naked except for a diaper and hat, against a parent's chest. this skin-to-skin contact resembles how marsupials such as kangaroos and koalas care for their young. initially established in overcrowded nurseries in developing countries as a substitute for incubators and monitors, kangaroo care is now practised in the neonatal intensive care units of developed countries. | 1993 | 8508434 |
| total body water and the estimation of fat in the koala (phascolarctos cinereus). | | 1992 | 1449462 |
| effects of capture on hematological values and plasma cortisol levels of free-range koalas (phascolarctos cinereus). | eight free-range koalas (phascolarctos cinereus) were captured on kangaroo island (south australia) and later transported to the adelaide zoological gardens. blood samples were collected at the time of capture and at 6 hr, 24 hr and 7 days later. routine hematological analyses were performed and plasma cortisol levels determined. significant differences were observed between sampling times for erythrocyte numbers, hemoglobin concentrations, packed cell volumes, mean cell volumes, mean cell hemog ... | 1992 | 1512893 |
| isolation of koala lymphoid cells and their in vitro responses to mitogens. | baseline parameters have been established for the successful in vitro culture of mononuclear cells from the peripheral blood (pmc) of koalas. to minimise stress-related influences and allow repeated testing of cells from the same animals, most studies were performed using blood samples from captive koalas which had become accustomed to regular handling. ficoll-paque density gradient fractionation of whole blood was required to prepare cell suspensions which responded well to the t-lymphocyte mit ... | 1992 | 1570681 |
| a survey of koala road kills in new south wales. | between 1984 and 1990, 75 koalas (phascolarctos cinereus) from the central northern coast of new south wales (australia) were presented for necropsy due to motor vehicle accidents. the koalas consisted of 44 males and 31 females. fifty one of these were between 2 and 7 yr (39 males and 12 females). the greater proportion of koalas, especially males, were struck by vehicles between june and december. the main injuries detected were head injuries (44), hemoperitoneum (16), limb injuries (16), hemo ... | 1991 | 1758032 |
| topography of the major superficial lymph nodes and their efferent lymph pathways in the koala (phascolarctos cinereus). | the koala has an inguinoaxillary lymph trunk on either side of the ventral midline, and this carries efferent lymph from the superficial inguinal lymph node directly to the deep axillary lymph node. the superficial lymph nodes are large and soft compared with those of the domestic species, and each lymph centre usually contains only one or two large lymph nodes. koalas have a rostral mandibular lymph node which has not been described in other species, but lack popliteal and subiliac lymph nodes. ... | 1991 | 1769900 |
| conservation genetics of the koala (phascolarctos cinereus). ii. limited variability in minisatellite dna sequences. | we have examined variability in taqi and ecori restriction fragment sizes of dna from the koala (phascolarctos cinereus) using six hvr (hypervariable region) probes which reveal complex, individual-specific restriction patterns in humans and other species. frequency of band-sharing among unrelated koalas was extremely high. this result is likely to be a consequence of the history of near-extinction and artificial recolonization of the populations we have studied, rather than a general marsupial ... | 1991 | 1747097 |
| semen characteristics in free-living koalas (phascolarctos cinereus). | spermic electroejaculates (range in motile sperm/ejaculate, 0.50-122.9 x 10(6); mean +/- s.e.m., 38.6 +/- 4.9) were recovered from 47 of 48 adult koalas captured from 3 wild populations in australia. semen was characterized by (i) a high density of globular bodies, which prevented the estimation of sperm motility without dilution; (ii) a brownish colour; and (iii) an acidic ph. spermatozoa were categorized on the basis of 10 head forms, most cells being a curved or hooked shape. the koala popula ... | 1991 | 2056498 |
| dissociative anaesthesia in free-ranging male koalas and selected marsupials in captivity. | forty seven free-ranging, adult, male koalas were captured and administered an intramuscular injection of the dissociative anaesthetic, telazol (tiletamine hcl plus zolazepam hcl), at dose rates of 5.0 to 7.7 mg/kg body weight. anaesthesia induction was rapid and smooth and resulted in a surgical plane of anaesthesia lasting 30 to 45 min. there was no depression of heart rate or respiration. mild salivation occurred in most animals, but was not a problem because the swallowing reflex was retaine ... | 1990 | 2076068 |
| serosal proliferations in koalas. | | 1990 | 2264813 |
| spontaneous proliferations in australian marsupials--a survey and review. 1. macropods, koalas, wombats, possums and gliders. | this report catalogues all spontaneous proliferations in macropods, koalas, wombats, and possums and gliders held by the comparative pathology registry at taronga zoo. proliferative lesions were present in 14 macropods, 26 koalas, two wombats and 22 possums and gliders. most neoplasms recorded in macropods were singular and many were found incidentally. lymphoid neoplasia, cranio-facial tumours and apparent mesotheliomas were common in koalas. hyperplastic or benign neoplastic masses in adrenals ... | 1990 | 2246389 |
| cardiac failure in a koala secondary to an atrial septal defect. | | 1990 | 2144110 |
| an ultrastructural study on gastric endocrine cells in the stomach gland patch of the koala phascolarctos cinereus. | the endocrine cells in the stomach gland patch of the koala (phascolarctos cinereus) were studied ultrastructurally. they were classified into 3 types based on the ultrastructural profiles of their endocrine granules and tentatively categorized as type i, ii, and iii endocrine cells. type i cells contained round granules that were for the most part larger than those observed in the other 2 cell types. the granules ranged from moderate to relatively high in electron density. type ii cells were an ... | 1990 | 2220027 |
| diabetes mellitus in a koala (phascolarctos cinereus). | | 1989 | 2690450 |
| urinalysis in captive koalas. | | 1989 | 2619655 |
| haematological and biochemical reference values for the koala (phascolarctos cinereus). | haematological and biochemical reference values were established from 45 clinically healthy koalas. statistical analysis revealed no significant differences for sex and season of sampling. immature koalas had significantly higher alkaline phosphatase and inorganic phosphate values, and significantly lower total protein concentrations due to low globulins values. enzyme reference values tended to be wide and could limit their usefulness in detecting disease. in the reference values for leukocytes ... | 1989 | 2818360 |
| the health of australia's koalas: more research is needed urgently. | | 2008 | 3200191 |
| fair dinkum koala kuisine--eucalyptus oil poisoning. | | 1988 | 2904658 |
| virus particles associated with leukaemia in a koala. | | 1988 | 3196252 |
| tooth enamel structure in the koala, phascolarctos cinereus: some functional interpretations. | the purpose of this study is to determine whether the structural organization of pattern 2 marsupial enamel in the koala is disposed to resist wear on the sectorial crests of the molar teeth. the orientation of wear on the crests is uniformly delineated by parallel scratches on their polished surfaces. twin blades, a leading and a trailing edge of enamel are formed on each crest by wear into dentine on which the differential wear at enamel to dentine interfaces indicates that the direction of we ... | 1987 | 3433071 |
| membranous glomerulonephritis in a koala. | | 1987 | 3447581 |
| a mortality survey of free range koalas from the north coast of new south wales. | in the period 1980 to 1986, 127 free range koalas from the north coast of new south wales were presented for necropsy. thirty-three koalas had urogenital disease alone, 8 had respiratory disease alone, 2 had digestive tract disease alone, 12 had multiorgan disease, 48 had traumatic injuries, 6 had neoplasia, 3 had miscellaneous conditions, while 15 had no significant lesions. common naturally occurring disease entities included cystitis, conjunctivitis, paraovarian cysts, metritis and pneumonia. ... | 1987 | 3447574 |
| retinogeniculate patterns in diprotodont marsupials. | the pattern of retinogeniculate connections has been examined in a range of diprotodont marsupials, including wallabies, possums, forest wombat and koala. the lateral geniculate nucleus (lgd) in most species has alternating bands of ipsilateral and contralateral retinal terminal fields, with considerable interspecific variability. the number of terminal bands of retinogeniculate input varies from eight to eleven in most species, with little binocular overlap. by contrast in one species, the feat ... | 1987 | 3620896 |
| ultrastructure and possible function of giant crystalloids in the sertoli cell of the juvenile and adult koala (phascolarctos cinereus). | sertoli cells of the juvenile and adult koala testis exhibit a unique morphology due to their large nuclei and in particular, a remarkable abundance of large cytoplasmic crystalloid inclusions. numerous crystalloid subunits in immature sertoli cells are aggregated into distinct clusters where by assembly and union, they form large slender crystalloids consisting of an ordered substructure of filaments and tubules. adult sertoli cells contain large numbers of basally-positioned crystalloids up to ... | 1987 | 3619073 |
| cranio-facial tumours of mixed cartilage and bone in koalas (phascolarctos cinereus). | cranio-facial tumours of mixed cartilage and bone are discussed in 4 koalas. the tumours were well circumscribed and distorted the faces of the koalas. grossly, the tumours were firm, white and nodular. histologically, they consisted of compartments separated by connective tissue septa. the compartments were lined by cells resembling chondroblasts, and had varying amounts of bone and hypertrophied chondrocytes in their centres. the neoplasms were considered benign. | 1987 | 3593132 |
| hepatic inclusion bodies in the liver of a koala (phascolarctos cinereus). | | 1986 | 3030254 |
| the electrocardiogram of the koala (phascolarctos cinereus). | | 1986 | 3790016 |
| craniofacial tumors of the koala (phascolarctos cinereus). | | 1986 | 3458931 |
| positional distribution of acyl and alk-1-enyl groups in grey and white matter ethanolamine and choline phosphoglycerides of a marsupial, the koala (phascolarctos cinereus). | the major phosphoglycerides in grey and white matter from the brain of the koala have been separated and examined. the major polyunsaturated fatty acids present in both the diacyl- and alk-1-enyl acylglycerophosphorylethanolamines from grey matter were 22:6 omega 3, 20:4 omega 6, and 22:4 omega 6. in both grey and white matter, 22:6 omega 3 and 20:4 omega 6 were concentrated in the 2-position of diacylglycerophosphorylethanolamines and 22:4 omega 6 in the 2-position of alk-1-enylacylglycerophosp ... | 1984 | 6693898 |
| the anatomy and histology of the nasal cavity of the koala (phascolarctos cinereus). | the anatomy of the nose of the koala was studied from fixed 0.5 cm thick sections of a whole head. right and left nasal cavities are separated by a slender septum which does not exhibit 'swell bodies'. dorsal and ventral conchae are simple curved plates without elaborate scrolls; the ventral concha is recurved to form a bulla. the nasal cavity communicates with confluent rostral maxillary and frontal air sinuses. a ventrocaudal maxillary sinus opens from the ventral meatus close to the choanae. ... | 1984 | 6706839 |
| oxalate poisoning in a koala (phascolarctos cinereus). | a case of suspected acute oxalate poisoning is reported in an aged male koala. the animal had extensive renal oxalosis and a haemorrhagic bladder wall when autopsied. the source of the oxalate was not detected. | 1982 | 7181780 |
| the use of amitraz in the control of an outbreak of sarcoptic mange in a colony of koalas. | | 1982 | 7082235 |
| crystalloid inclusions in the sertoli cell of the koala, phascolarctos cinereus (marsupialia). | crystalloid inclusions are a common feature in the basal region of sertoli cells in the koala, phascolarctos cinereus. generally located near the nucleus, they are non membrane-bounded, slender rectangular structures composed to tubules which are orientated at right angles to the long axis of the crystalloid and regularly arranged in rows parallel to this long axis. the tubules in adjacent rows are offset from one another at definite angles and extensively interconnected by filaments. neither th ... | 1982 | 6276004 |
| the physiology of the koala. | | 1980 | 7455663 |
| the koala (phascolarctos cinereus)! past, present and future. | the koala (phascolarctos cinereus) (from the greek phascolarctos meaning leather pouch and bear, cinereus ashen grey in colour) is australia's most admired native animal but very little scientific reference material is available on this unique animal. the demands of the fur trade during the latter half of the last century and up to the 1920's almost exterminated the koala and this tragic episode from the past is briefly recounted. koalas are nocturnal and arboreal. details of appearance, distrib ... | 1975 | 1239267 |
| adrenal steroid secretion in the koala (phascolarctos cinereus). | | 1970 | 4319572 |
| the organization of a contractile system in glands. i. the contractile system in the palmar apocrine glands of the koala phascolarctos cinereus. | | 1968 | 5689039 |
| antidiuretic activity in the pituitary gland of the koala bear. | | 1967 | 6074966 |
| serous cystadenomata of the ovary in the koala. | | 1963 | 13945213 |
| the prevalence of cryptococcosis in the koala (phascolarctos cinereus). | | 1962 | 13870820 |
| acute leukemia in a new south wales koala (phascolarctos c. cinereus). | | 1961 | 13907056 |
| the adrenals of the koala (phascolarctos cinereus) and their alleged relationship to eucalyptus leaf diet. | | 1953 | 13070933 |
| note on the thymus gland in the koala (phascolarctus cinereus). | | 1900 | 17232422 |
| the muscular anatomy of the koala (phascolarctos cinereus): with additional notes. | | 1882 | 17231427 |
| anatomy of the koala (phascolarctos cinereus). | | 1881 | 17231400 |
| the male generative organs of the koala (phascolarctos cinereus). | | 1879 | 17231260 |
| characterization of shifts of koala (phascolarctos cinereus)intestinal microbial communities associated with antibiotic treatment. | koalas (phascolarctos cinereus) are arboreal marsupials native to australia that eat a specialized diet of almost exclusively eucalyptus leaves. microbes in koala intestines are known to break down otherwise toxic compounds, such as tannins, in eucalyptus leaves. infections bychlamydia, obligate intracellular bacterial pathogens, are highly prevalent in koala populations. if animals withchlamydiainfections are received by wildlife hospitals, a range of antibiotics can be used to treat them. howe ... | 2018 | 29576947 |
| in this issue - may 2019: west nile virus in horses · treating horses with dexamethasone via nebulisation · animal hoarding in nsw · dangers of powdered washing soda for emesis in dogs · pneumocystis in a dog following toceranib phosphate · oxalate nephrosis in koalas. | | 2019 | 31025324 |
| skin structure in newborn marsupials with focus on cutaneous gas exchange. | a morphological and morphometric study of the skin of a variety of newborn marsupials (dasyurus viverrinus, monodelphis domestica, trichosurus vulpecula, isoodon obesulus, perameles nasuta, phascolarctos cinereus, potorous tridactylus, petrogale penicillata, thylogale thetidi, macropus dorsalis) and of a monotreme hatchling (ornithorhynchus anatinus) was undertaken to assess the possibility of cutaneous gas exchange. additionally, the lungs of some of these species were investigated to assess it ... | 2018 | 29947022 |
| challenges associated with the development and transfer of assisted breeding technology in marsupials and monotremes: lessons from the koala, wombat and short-beaked echidna. | this reflective review describes how a research model, which was originally established for the successful ai of the koala (phascolarctos cinereus), is currently being developed and extended to the wombat (lasiorhinus latifrons and vombatus ursinus) and short-beaked echidna (tachyglossus aculeatus). the research model centres around the establishment of an ai program and involves: (1) semen collection, evaluation and preservation, requiring an understanding of male reproductive physiology and ga ... | 2019 | 30991015 |
| the gaits of marsupials and the evolution of diagonal-sequence walking in primates. | documenting the variety of quadrupedal walking gaits in a variety of marsupials (arboreal vs. terrestrial, with and without grasping hind feet), to aid in developing and refining a general theory of gait evolution in primates. | 2020 | 31762016 |
| characterizing the complexity of australian marsupial insulin-like growth factor 1 genes. | insulin-like growth factor 1 (igf1) actions are essential for somatic growth and tissue repair. igf1 gene regulation is controlled by many inputs, with growth hormone playing a major role. in most mammals, the 6-exon igf1/igf1 gene produces multiple transcripts via independent activity of its promoters plus alternative rna splicing and differential polyadenylation. here, by analyzing public genomic and rna-sequencing repositories, i have characterized three australian marsupial igf1 genes. koala ... | 2019 | 30871962 |
| in vitro binding of cefovecin to plasma proteins in australian marsupials and plasma concentrations of cefovecin following single subcutaneous administration to koalas (phascolarctos cinereus). | cefovecin has a long duration of antibiotic activity in cats and dogs, somewhat attributable to its high plasma protein binding. | 2019 | 30809814 |
| shifting faunal baselines through the quaternary revealed by cave fossils of eastern australia. | fossils from caves in the manning karst region, new south wales, australia have long been known, but until now have never been assessed for their palaeontological significance. here, we report on late quaternary faunal records from eight caves in the region. extinct pleistocene megafaunal taxa are recognised in two systems and include giant echidnas (tachyglossidae gen. et sp. indet.), devils (sarcophilus laniarius), koalas (phascolarctos stirtoni), marsupial 'lions' (thylacoleo carnifex), and k ... | 2019 | 30697475 |
| molecular evolution of dnmt1 in vertebrates: duplications in marsupials followed by positive selection. | dna methylation is mediated by a conserved family of dna methyltransferases (dnmts). the human genome encodes three active dnmts (dnmt1, dnmt3a and dnmt3b), the trna methyltransferase dnmt2, and the regulatory protein dnmt3l. despite their high degree of conservation among different species, genes encoding dnmts have been duplicated and/or lost in multiple lineages throughout evolution, indicating that the dna methylation machinery has some potential to undergo evolutionary change. however, litt ... | 2018 | 29621315 |
| effects of climate on dental mesowear of extant koalas and two broadly distributed kangaroos throughout their geographic range. | dental mesowear analysis can classify the diets of extant herbivores into general categories such as grazers, mixed-feeders, and browsers by using the gross wear patterns found on individual teeth. this wear presumably results from both abrasion (food-on-tooth wear) and attrition (tooth-on-tooth wear) of individual teeth. mesowear analyses on extinct ungulates have helped generate hypotheses regarding the dietary ecology of mammals across space and time, and recent developments have expanded the ... | 2018 | 30133503 |
| chronic excess fluoride uptake contributes to degenerative joint disease (djd): evidence from six marsupial species. | one of the manifestations of chronic fluoride toxicosis in mammals is skeletal fluorosis, which can include lesions of degenerative joint disease (djd). although djd lesions have been less commonly studied than bone or dental lesions in relation to the pathology and epidemiology of fluoride toxicosis, there have been multiple independent studies in various species that have concluded that there appears to be an effect. the mechanisms by which fluoride affects the joints are not clear, but our da ... | 2018 | 30015183 |
| a pilot study for estimating the cardiopulmonary signals of diverse exotic animals using a digital camera. | monitoring the cardiopulmonary signal of animals is a challenge for veterinarians in conditions when contact with a conscious animal is inconvenient, difficult, damaging, distressing or dangerous to personnel or the animal subject. in this pilot study, we demonstrate a computer vision-based system and use examples of exotic, untamed species to demonstrate this means to extract the cardiopulmonary signal. subject animals included the following species: giant panda (ailuropoda melanoleuca), africa ... | 2019 | 31835550 |
| meta-transcriptomic identification of trypanosoma spp. in native wildlife species from australia. | wildlife species carry a remarkable diversity of trypanosomes. the detection of trypanosome infection in native australian fauna is central to understanding their diversity and host-parasite associations. the implementation of total rna sequencing (meta-transcriptomics) in trypanosome surveillance and diagnosis provides a powerful methodological approach to better understand the host species distribution of this important group of parasites. | 2020 | 32891158 |
| infectious korv-related retroviruses circulating in australian bats. | bats are reservoirs of emerging viruses that are highly pathogenic to other mammals, including humans. despite the diversity and abundance of bat viruses, to date they have not been shown to harbor exogenous retroviruses. here we report the discovery and characterization of a group of koala retrovirus-related (korv-related) gammaretroviruses in australian and asian bats. these include the hervey pteropid gammaretrovirus (hpg), identified in the scat of the australian black flying fox (pteropus a ... | 2020 | 32284399 |
| a novel australian flying-fox retrovirus shares an evolutionary ancestor with koala, gibbon and melomys gamma-retroviruses. | a novel gamma-retroviral sequence (7912 bp), inclusive of both partial 5' and 3' long terminal repeat regions, was identified from the brain of a black flying-fox (pteropus alecto), queensland, australia. the sequence was distinct from other retroviral sequences identified in bats and showed greater identity to koala, gibbon ape leukaemia, melomys burtoni and woolly monkey retroviruses, forming their own phylogenetic clade. this finding suggests that these retroviruses may have an unknown common ... | 2019 | 30877415 |
| koala retrovirus diversity, transmissibility, and disease associations. | koalas are infected with the koala retrovirus (korv) that exists as exogenous or endogenous viruses. korv is genetically diverse with co-infection with up to ten envelope subtypes (a-j) possible; korv-a is the prototype endogenous form. korv-b, first found in a small number of koalas with an increased leukemia prevalence at one us zoo, has been associated with other cancers and increased chlamydial disease. to better understand the molecular epidemiology of korv variants and the effect of increa ... | 2020 | 33008414 |
| bone biomarkers in koalas: validation of assays and preliminary analyses. | traumatic injury, including bone fracture, is, to date, one of the leading causes of koala mortality in the south east queensland region of australia. further, the specialist diet of koalas, which is restricted to certain eucalyptus spp., may impact their normal bone physiology. considering the dramatic koala population decline and high incidence of trauma, a greater understanding of koala bone physiology may support conservation. we retrieved from genbank the protein sequences of parathyroid ho ... | 2020 | 32917121 |
| a micro-prnt for the detection of ross river virus antibodies in mosquito blood meals: a useful tool for inferring transmission pathways. | many arboviruses of public health significance are maintained in zoonotic cycles with complex transmission pathways. the presence of serum antibody against arboviruses in vertebrates provides evidence of their historical exposure but reveals nothing about the vector-reservoir relationship. moreover, collecting blood or tissue samples from vertebrate hosts is ethically and logistically challenging. we developed a novel approach for screening the immune status of vertebrates against ross river vir ... | 2020 | 32706777 |
| systemic mastocytosis and probable mast cell leukaemia in a koala (phascolarctos cinereus). | to the authors' knowledge, this is the first report of mast cell neoplasia in a koala (phascolarctos cinereus). | 2020 | 31919836 |
| chlamydiae from down under: the curious cases of chlamydial infections in australia. | in australia, the most researched and perhaps the most successful chlamydial species are the human pathogen chlamydia trachomatis, animal pathogens chlamydia pecorum and chlamydia psittaci. c. trachomatis remains the leading cause of sexually transmitted infections in australians and trachoma in australian indigenous populations. c. pecorum is globally recognised as the infamous koala and widespread livestock pathogen, whilst the avian c. psittaci is emerging as a horse pathogen posing zoonotic ... | 2019 | 31766703 |
| comparing immunochromatography with latex antigen agglutination testing for the diagnosis of cryptococcosis in cats, dogs and koalas. | although the point-of-care cryptococcal antigen lateral flow assay (lfa) has revolutionized the diagnosis of cryptococcosis in human patients, to date there has been no large-scale examination of this test in animals. we therefore assessed the lfa in cats, dogs and koalas suspected of having cryptococcosis. in sum, 528 serum specimens (129 from cats, 108 from dogs, 291 from koalas) were tested using the lfa and one of two commercially available latex cryptococcal antigen agglutination test (lcat ... | 2020 | 31220311 |