| enterotoxaemia in a juvenile eastern grey kangaroo (macropus giganteus). | | 1978 | 644816 |
| bacteriophages from the forestomachs of australian marsupials. | bacteriophages were observed in forestomach contents from three species of australian macropodoid marsupials possessing a foregut fermentative digestion: the eastern grey kangaroo (macropus giganteus), the eastern wallaroo (macropus robustus robustus), and the rufous bettong (aepyprymnus rufescens). forty-six morphologically distinct phage types, representing the families myoviridae, siphoviridae, and podoviridae, were identified. the range of forms varied between host species. the greatest dive ... | 1991 | 1785938 |
| sites of attachment in amblyomma triguttatum triguttatum koch (acari: ixodidae) on natural hosts. | the sites of attachment of amblyomma triguttatum truguttatum were studied from june to september 1981 on 146 feral pigs (sus scrofa) and from march to august 1982 and january 1983 on 68 grey kangaroos (macropus giganteus), naturally infested. two hundred fifty hour (81%) of 314 nymphs were detected on the ears of the pigs; neither adults nor larvae of a. t. triguttatum were found on s. scrofa. six hundred ninety four (97%) of 715 larvae; 283 (96%) of 295 nymphs and 11 (79%) of 14 adults of a. t. ... | 1990 | 2080832 |
| serodiagnosis of acute toxoplasmosis in macropods. | the sera of 34 australian macropods, the brains of which had been bioassayed for toxoplasma gondii, were used to establish that a titre greater than 1/32 was significant for a direct agglutination test against toxoplasmosis. in addition, the concentration of 2-mercaptoethanol required to destroy the igm fraction of macropod serum was confirmed in a modified direct agglutination test. to further validate the tests, the serological responses of three eastern grey kangaroos (macropus giganteus) dos ... | 1989 | 2588468 |
| purification of a marsupial insulin: amino-acid sequence of insulin from the eastern grey kangaroo macropus giganteus. | insulin has been purified from kangaroo pancreas by acidic ethanol extraction, diethyl ether precipitation and gel filtration. the amino-acid sequence of this, the first marsupial insulin to be studied, is reported. it differs from human insulin by only four amino-acid substitutions, all in regions of the molecule previously known to be variable. however, it should be noted that one of these, asparagine for threonine at a8, has not been reported before. computer comparisons of all 43 insulin seq ... | 1989 | 2647150 |
| a partial amino acid sequence of -lactalbumin-i of the grey kangaroo (macropus giganteus). | | 1973 | 4718741 |
| comparison of carbonic anhydrase activity and other haematological values of two eutherian and three australian marsupial mammals. | 1. carbonic anhydrase activity and 2,3-diphosphoglycerate (2,3-dpg) concentration were determined in whole blood from humans (homo sapiens), rabbits (oryctolagus cuniculus), eastern grey kangaroos (macropus giganteus), pademelons (thylogale billardierii) and brush-tailed possums (trichosurus vulpecula). 2. marsupial blood carbonic anhydrase activity increased as species body size decreased. 3. t. billardierii haemoglobin was found to have a polymorphism which may be the same (beta 2 = histidine ... | 1982 | 6125313 |
| marsupial neurohypophysial hormones: identification of mesotocin, lysine vasopressin, and phenypressin in the quokka wallaby (setonix brachyurus). | the neurohypophysial hormones of the quokka wallaby (setonix brachyurus) have been isolated through preparative high pressure liquid chromatography (hplc). one oxytocin-like and two vasopressin-like peptides have been found. these peptides have been characterized by their amino acid composition and by their retention time in hplc. mesotocin ([i1e8]-oxytocin) has been identified by amino acid composition, polar partition chromatography, high pressure liquid chromatography with a reversed phase co ... | 1983 | 6618161 |
| candidiasis in young hand-reared kangaroos. | necropsies conducted on four young eastern grey kangaroos (macropus giganteus) revealed white encrustations adherent to the mucosa of the lips, gums, tongue and oesophagus. the non-glandular stomach was impacted with similar white curd-like material, much of which was ahderent to the mucosa. histopathology revealed fungal mycelia and blastospores invading the stratified squamous epithelium resulting in focal erosion, ulceration and venous thrombosis. a predominantly neutrophilic leucocytic infil ... | 1980 | 6990020 |
| durikainema macropi gen. et sp. nov. (muspiceoidea: robertdollfusidae). a remarkable nematode from macropodidae (marsupialia). | durikainema macropi gen. et sp. nov. (muspiceoidea: robertdollfusidae) is described from the mesenteric and hepatic portal veins of macropus giganteus shaw 1790, m. agilis (gould 1842) and m. rufogriseus (desmarest 1817) (marsupialia: macropodidae) from queensland, australia. it is also known from histological sections of hepatic portal veins of m. robustus gould 1841, m. fuliginosus (desmarest 1817) and lagorchestes conspicillatus gould 1842. the new genus resembles the enoplina in cephalic and ... | 1982 | 7081889 |
| the prevalence of anti-leptospiral agglutinins in sera of wildlife in southeastern australia. | anti-leptospiral agglutinins were found in the serum from 18 (7 species) of 419 (25 species) animals sampled from various areas of southeastern australia. positive serologic reactions were observed in 5 of 25 (20%) brush-tailed possum (trichosurus vulpecula), 1 of 26 (3.8%) tammar wallaby (macropus eugenii), 2 of 12 (16.7%) swamp wallaby (wallabia bicolor), 1 of 3 (33.3%) koala (phascolarctos cinereus), 3 of 41 (7.3%) common wombat (vombatus ursinus), 2 of 100 (2%) bush rat (rattus fuscipes) and ... | 1981 | 7241704 |
| eastern grey kangaroo muscle creatine kinase. | creatine kinase has been purified to homogeneity from skeletal muscle of the eastern grey kangaroo, macropus giganteus. the procedure included ethanol fractionation followed by chromatography on deae-cellulose. the enzyme had a molecular weight of approximately 86 000 with two subunits of 43 500. two sulfhydryl groups were determined for the intact molecule and a further four on unfolding. under standardized conditions, the metal ion specificity was determined as mgadp- greater than mnadp- great ... | 1981 | 7295209 |
| electron-microscope study of the dentine-enamel junction of kangaroo (macropus giganteus) teeth using selected-area argon-ion-beam thinning. | transmission electron microscopy of selected-area argon-ion-beam thinned kangaroo (macropus giganteus) enamel revealed a complex ultrastructure in the region of the dentine-enamel junction (dej). characteristic features were multiple branching of dentinal tubules, rejoining of enamel tubules, elongated defects, extended protrusions of dentine into enamel, two types (a and b) of hypomineralized enamel and a continuity between dentinal and enamel tubules. in the intertubular regions of the dej a c ... | 1981 | 7307062 |
| prevalence of fasciola hepatica infection in native mammals in southeastern australia. | fasciola hepatica infection was found in 5 of 12 marsupial and 1 of 3 eutherian species examined in southeastern australia. prevalence of infection in native mammals was as follows: macropus giganteus, 59%; m. rufogriseus banksianus, 15%; wallabia bicolor, 5%; vombatus ursinus, 30%; trichosurus vulpecula, 5%; and rattus fuscipes, 4%. collection sites were assigned to one of two categories. prevalence was higher in macropodids collected on agricultural pastures grazed by sheep and cattle (categor ... | 1981 | 7340772 |
| comparative studies of alpha-lactalbumin and lysozyme: the proteins of kangaroo (megaleia rufa and macropus giganteus) and horse (equus caballus). | as part of a study of the 'whey' proteins of various mammals, a comparison is made of the alpha-lactalbumins and lysozymes of the kangaroo and horse. in the milk of the red kangaroo (megaleia rufa) there is only one alpha-lactalbumin and it occurs throughout lactation, but no lysozyme has been detected. there are two alpha-lactalbumins in the milk of the grey kangaroo (macropus giganteus), one, designated alpha-lactalbumin zone b, is present throughout lactation; the second, designated alpha-lac ... | 1980 | 7366582 |
| gastrin and cholecystokinin in the eastern grey kangaroo, macropus giganteus giganteus. | gastrin and cck are believed to have a common ancestor. the gastrin structure has probably evolved from cck-like peptides at a stage later than the amphibians. to trace the evolution of gastrin and cck we have determined their structures in an australian marsupial, the eastern grey kangaroo. the brain cck was identical to cck-8 of most mammals. the larger form of kangaroo gastrin was a 33mer with the sequence pelhpqdlphlmtdlskkkgpwqeedaay(so3)gwmdf-nh2. the 11 italic residues indicate difference ... | 1993 | 8134294 |
| innervation of the levator scapulae, the serratus anterior, the rhomboideus and the scapular muscles in the gray kangaroo (macropus giganteus). comparisons are drawn to the crab-eating macaque and man. | the origin, course and distribution of the nerves to the levator scapulae, rhomboideus, serratus anterior, supraspinatus, infraspinatus, subscapularis, teres minor, deltoid, teres major and latissimus dorsi muscles were examined in 7 kangaroo body-halves. the levator scapulae and the serratus anterior formed a continuous muscle sheet arising from the transverse processes of the lower 5 cervical vertebrae and the upper 6 ribs. the rhomboideus arose from the occipital bone in addition to the cervi ... | 1993 | 8465970 |
| sibling species within macropostrongyloides baylisi (nematoda: strongyloidea) from macropodid marsupials. | macropostrongyloides baylisi from four different species or subspecies of host were analysed electrophoretically at 27 enzyme loci. the results revealed the existence of two species, one in macropus giganteus and the other in m. robustus robustus, m.r. erubescens and m.r. parryi, that had fixed genetic differences at 33% of loci. populations of nematodes from two subspecies of m. robustus, m.r. robustus from queensland and m.r. erubescens from south australia, had fixed genetic differences at tw ... | 1993 | 8468133 |
| diffusional water permeability of mammalian red blood cells. | an extensive programme of comparative nuclear magnetic resonance measurements of the membrane diffusional permeability for water (pd) and of the activation energy (ea,d) of this process in red blood cells (rbcs) from 21 mammalian species was carried out. on the basis of pd, these species could be divided into three groups. first, the rbc's from humans, cow, sheep and "large" kangaroos (macropus giganteus and macropus rufus) had pd values approximately 5 x 10(-3) cm/s at 25 degrees and 7 x 10(-3) ... | 1995 | 8590380 |
| phospholipid composition of erythrocyte membranes and plasma of mammalian blood including australian marsupials; quantitative 31p nmr analysis using detergent. | the phospholipid classes of erythrocyte membranes and plasma from several domestic animals and marsupials were quantified by 31p nmr using detergents. washed erythrocyte samples were thoroughly haemolysed by tip-sonication and dissolved in sodium cholate; plasma samples were dissolved in triton x-100. the species studied were: common wombat (vombatus ursinus), black-striped wallaby (macropus dorsalis), bandicoot (isoodon macrocarpus), eastern grey kangaroo (macropus giganteus), tammar wallaby (m ... | 1996 | 8653579 |
| a nested pcr for the ssrrna gene detects trypanosoma binneyi in the platypus and trypanosoma sp. in wombats and kangaroos in australia. | trypanosome infections in their natural hosts are frequently difficult to detect by microscopy, and culture methods are unreliable and not suitable for all species of trypanosoma. a nested pcr strategy for detecting and identifying trypanosoma species, suitable for detecting both known and unknown trypanosomes, is presented. thirty-two blood samples from 23 species of australian birds and mammals were screened by a nested pcr for the presence of trypanosoma sp. ssrrna. three infections were dete ... | 1999 | 10221634 |
| reactivation of a macropodid herpesvirus from the eastern grey kangaroo (macropus giganteus) following corticosteroid treatment. | the family herpesviridae is a large group of viruses which contain double stranded dna genomes. biological characteristics, such as host signs, site of replication and site of latency have been used to describe three major subfamilies, alphaherpesvirinae, betaherpesvirinae and gammaherpesvirinae within the family herpesviridae. macropodid herpesviruses (mahv) have been implicated in fatal outbreaks amongst the captive marsupial populations of australia. these outbreaks have resulted in the isola ... | 1999 | 10501162 |
| novel isotrichid ciliates endosymbiotic in australian macropodid marsupials. | samples of foregut content were collected from 86 macropodid marsupials and examined for the presence of endosymbiotic ciliates. four host species were examined: macropus giganteus (eastern grey kangaroo), m. fuliginosus (western grey kangaroo), m. robustus (common wallaroo) and thylogale billardierii (tasmanian pademelon). ciliate morphology was determined by microscopical examination of live and silver-impregnated specimens. isotrichid ciliates were detected in 51 (59%) of the 86 animals exami ... | 2000 | 10803435 |
| marsupial, insectivore, and chiropteran anesthesia. | this article covers the manual restraint and anesthesia of marsupials, insectivores, and chiroptera. marsupials commonly kept as pets in the u.s. [e.g., eastern gray kangaroos (macropus giganteus), bennett's wallabies (macropus rufogriseus), and sugar gliders (petaurus breviceps)] are covered in detail. marsupial species kept in zoological parks [e.g., tasmanian devils, koalas (phascolarctos cinereus), and common wombats (vombatus ursinus)] are covered in less detail. of the insectivores, only t ... | 2001 | 11217462 |
| erythrocyte osmotic fragility of red (macropus rufus) and grey (macropus fuliginosus and macropus giganteus) kangaroos and free-ranging sheep of the arid regions of australia. | the mean corpuscular fragility (mcf) of erythrocytes may reflect phylogenetic characteristics as well as an animal's ability to respond to the osmotic challenges associated with cyclic dehydration and rehydration. this type of ecophysiological stress is commonly encountered by animals living in arid regions and low mcf may contribute to their ability to survive and thrive in these xeric habitats. the eastern grey kangaroo has only in recent times extended its range into the arid zone, and is con ... | 2001 | 11263725 |
| a combined analysis of the cystic fibrosis transmembrane conductance regulator: implications for structure and disease models. | over the past decade, nearly 1,000 variants have been identified in the cystic fibrosis transmembrane conductance regulator (cftr) gene in classic and atypical cystic fibrosis (cf) patients worldwide, and an enormous wealth of information concerning the structure and function of the protein has also been accumulated. these data, if evaluated together in a sequence comparison of all currently available cftr homologs, are likely to refine the global structure-function relationship of the protein, ... | 2001 | 11504857 |
| long-term fertility control in the kangaroo and the wallaby using levonorgestrel implants. | non-lethal management techniques are needed for overabundant captive and wild populations of macropodid marsupials for which lethal techniques are considered inappropriate and may be hazardous. the tammar wallaby, macropus eugenii, was used as a model species to investigate the effect of s.c. levonorgestrel implants on reproduction during breeding and non-breeding seasons. implants were tested on captive and wild populations of eastern grey kangaroos, macropus giganteus. in both species, levonor ... | 2002 | 12220166 |
| evaluation of a combined immunomagnetic separation/flow cytometry technique for epidemiological investigations of cryptosporidium in domestic and australian native animals. | a combined immunomagnetic separation (ims) and flow cytometry (fc) technique was developed for the sensitive detection of cryptosporidium in faecal samples. the ims/fc technique was found to be approximately 50-fold more sensitive than formol-ether concentration, which is commonly used for cryptosporidium epidemiological investigations. of 31 faecal samples from captive animals 16 were found to contain cryptosporidium oocysts when analysed using the ims/fc compared to four when using formol-ethe ... | 2003 | 12581582 |
| detection of toxoplasma gondii igg antibodies in juvenile great grey kangaroos, macropus giganteus giganteus. | serial igg antibody titers to toxoplasma gondii from three juvenile great grey kangaroos (macropus giganteus giganteus) with clinical signs consistent with toxoplasmosis were compared with titers from three clinically normal juveniles of similar age. the modified agglutination test was used to measure antibodies to t. gondii. results demonstrated declining antibody titers to t. gondii in five of six animals. antibody titers were similar in animals with and without clinical signs. this was interp ... | 2003 | 12885138 |
| intraspecific variation, sex-biased dispersal and phylogeography of the eastern grey kangaroo (macropus giganteus). | genetic information has played an important role in the development of management units by focusing attention on the evolutionary properties and genetics of populations. wildlife authorities cannot hope to manage species effectively without knowledge of geographical boundaries and demic structure. the present investigation provides an analysis of mitochondrial dna and microsatellite data, which is used to infer both historical and contemporary patterns of population structuring and dispersal in ... | 2003 | 12886282 |
| sperm membrane fatty acid composition in the eastern grey kangaroo (macropus giganteus), koala (phascolarctos cinereus), and common wombat (vombatus ursinus) and its relationship to cold shock injury and cryopreservation success. | marsupial spermatozoa tolerate cold shock well, but differ in cryopreservation tolerance. in an attempt to explain these phenomena, the fatty acid composition of the sperm membrane from caput and cauda epididymides of the eastern grey kangaroo, koala, and common wombat was measured and membrane sterol levels were measured in cauda epididymidal spermatozoa. while species-related differences in the levels of linolenic acid (18:3, n-6) and arachidonic acid (20:4, n-6) were observed in caput epididy ... | 2004 | 15351685 |
| characterization of culturable anaerobic bacteria from the forestomach of an eastern grey kangaroo, macropus giganteus. | to determine the culturable biodiversity of anaerobic bacteria isolated from the forestomach contents of an eastern grey kangaroo, macropus giganteus, using phenotypic characterization and 16s rdna sequence analysis. | 2005 | 16162139 |
| water use and the thermoregulatory behaviour of kangaroos in arid regions: insights into the colonisation of arid rangelands in australia by the eastern grey kangaroo (macropus giganteus). | the eastern grey kangaroo (macropus giganteus) occurs mostly in the wetter regions of eastern australia. however, in the past 30-40 years it has moved into more arid regions (rainfall < 250 mm), thus increasing its overlap zone with the xeric adapted red kangaroo (macropus rufus). an increased access to water (supplied for domestic stock) may explain this range extension, but changes in the availability of preferred feed could also be involved. the water use, drinking patterns and thermoregulato ... | 2006 | 16208512 |
| putative sporidesmin toxicity in an eastern grey kangaroo (macropus giganteus). | a 2-year-old, captive, male eastern grey kangaroo (macropus giganteus) died after progressive weight loss over a 4 week period. biochemical analysis suggested hepatobiliary injury. at necropsy the liver was small, pale and firm. there were no abnormalities detected in other organs. histopathological examination revealed a severe, diffuse, obliterative cholangiohepatopathy with advanced periportal fibrosis. this chronic hepatotoxicity was consistent with exposure to sporidesmin, the toxic metabol ... | 2005 | 16315666 |
| echinococcus granulosus in northern queensland. 2. ecological determinants of infection in beef cattle. | to provide information on possible ecological determinants of infection with echinococcus granulosus in a beef pastoral area of northern queensland. | 2006 | 16958625 |
| identification and isolation of a novel herpesvirus in a captive mob of eastern grey kangaroos (macropus giganteus). | a novel herpesvirus was detected in a captive mob of eastern grey kangaroos (macropus giganteus) during diagnostic workup for individuals with ulcerative cloacitis. virus was initially detected in tissues using a consensus herpesvirus pcr. no viral inclusions or particles had been evident in routine histologic or transmission electron microscopic sections of cloacal lesions. virus was isolated from samples and transmission electron microscopy of the resulting isolates confirmed that the virus wa ... | 2008 | 18191922 |
| unilateral failure of development of mandibular premolars and molars in an eastern grey kangaroo (macropus giganteus) and its effects on molar progression. | an adult male eastern grey kangaroo from a wildlife reserve near melbourne was submitted for necropsy examination and was discovered to have abnormal dentition. there was no evidence that any premolars or molars had ever been present on the right mandible, whilst the incisors were normal. the age of the kangaroo was estimated to be 1 year 9 months using the right maxillary molars and 2 years 4 months old using the contralateral side, presumably due to the asymmetry of the dental arcades. 'lumpy ... | 2008 | 18271832 |
| australia's savanna herbivores: bioclimatic distributions and an assessment of the potential impact of regional climate change. | the future impacts of climate change are predicted to significantly affect the survival of many species. recent studies indicate that even species that are relatively mobile and/or have large geographic ranges may be at risk of range contractions or extinction. an ecologically and evolutionary significant group of mammals that has been largely overlooked in this research is australia's large marsupial herbivores, the macropodids (kangaroos). the aims of our investigation were to define and compa ... | 2008 | 18937565 |
| development and evaluation of immunoblot-based serodiagnostic tests for hydatid infection in macropodids. | this study examined the suitability of immunoblot assays using antigen b from hydatid cyst fluid (hcf) and the recombinant protein epc1 to estimate the prevalence of hydatid infection in threatened small macropodid populations. when hcf antigen b was used on sera from 29 wild eastern grey kangaroos (macropus giganteus) examined for the presence of hydatid cysts at necropsy (17 positive and 12 negative), and from five captive-bred macropodids, the sensitivity and specificity were 88% and 41%, res ... | 2008 | 18957664 |
| separating the influences of environment and species interactions on patterns of distribution and abundance: competition between large herbivores. | 1. much recent research has focused on the use of species distribution models to explore the influence(s) of environment (predominantly climate) on species' distributions. a weakness of this approach is that it typically does not consider effects of biotic interactions, including competition, on species' distributions. 2. here we identify and quantify the contribution of environmental factors relative to biotic factors (interspecific competition) to the distribution and abundance of three large, ... | 2009 | 19175695 |
| immunocontraception of eastern grey kangaroos (macropus giganteus) with recombinant brushtail possum (trichosurus vulpecula) zp3 protein. | this study examined the potential of a recombinant marsupial zona pellucida 3 protein as a contraceptive vaccine for the eastern grey kangaroo, a marsupial that is locally overabundant in several regions of eastern australia. first, a pilot study using porcine zona pellucidae (pzp) demonstrated that zp proteins, primarily the zp3 component of pzp, are highly immunogenic in the grey kangaroo and produce a long-lasting humoral response to a single immunisation, as found in other marsupials. immuni ... | 2009 | 19215986 |
| toxoplasmosis and genotyping of toxoplasma gondii in macropus rufus and macropus giganteus in argentina. | toxoplasma gondii infection is frequently asymptomatic; however, it can be severe or even fatal to some hosts. in this study, diagnosis of disseminated toxoplasmosis in one red kangaroo (macropus rufus) and one great grey kangaroo (macropus giganteus) from the la plata zoo, argentina and the isolation and molecular characterization of t. gondii are reported. both male kangaroos showed depression and sudden death. toxoplasma gondii infection was diagnosed by fresh examination, histopathology, imm ... | 2010 | 20045255 |
| serologic-based investigation of leptospirosis in a population of free-ranging eastern grey kangaroos (macropus giganteus) indicating the presence of leptospira weilii serovar topaz. | eastern grey kangaroos (macropus giganteus) are one of the most abundant large macropodids sharing the landscape with humans. despite this, little is known about the prevalence of leptospira carriage within this species and the role that they may partake in the transmission of this disease in australia. the sera of 87 free-ranging eastern grey kangaroos, captured in the warragamba catchment area, sydney, australia, from june 2004 to november 2006, were screened against a reference panel of 22 le ... | 2010 | 20688651 |
| candidatus bartonella antechini: a novel bartonella species detected in fleas and ticks from the yellow-footed antechinus (antechinus flavipes), an australian marsupial. | bartonella are fastidious, gram-negative, aerobic bacilli belonging to the alphaproteobacteria group. in the last ten years, the discovery of new bartonella species from a variety of mammalian hosts, arthropod vectors and geographical areas has increased. more than 20 species of bartonella have been identified, of which approximately thirteen are associated with disease in humans and animals. recently, four novel species of bartonella were isolated from mammalian hosts in australia: bartonella a ... | 2010 | 21215534 |
| differential resistance of mammalian sperm chromatin to oxidative stress as assessed by a two-tailed comet assay. | protamines of eutherian species are cysteine-rich molecules that become cross-linked by disulfide bonds during epididymal transit, whereas the protamines of most marsupial species lack cysteine residuals. the present study made use of the differences in protamine structure between eutherian and metatherian mammal spermatozoa to examine the comparative resistance of sperm dna to oxidative damage in three eutherian species (mus musculus, homo sapiens, sus domesticus) and three metatherian species ... | 2011 | 21635811 |
| hopping down the main street: eastern grey kangaroos at home in an urban matrix. | most urban mammals are small. however, one of the largest marsupials, the eastern grey kangaroo macropus giganteus, occurs in some urban areas. in 2007, we embarked on a longitudinal study of this species in the seaside town of anglesea in southern victoria, australia. we have captured and tagged 360 individuals to date, fitting each adult with a collar displaying its name. we have monitored survival, reproduction and movements by resighting, recapture and radio-tracking, augmented by citizen sc ... | 2014 | 26480041 |
| observation of a novel babesia spp. in eastern grey kangaroos (macropus giganteus) in australia. | the roles and epidemiological features of tick-borne protozoans are not well elicited in wildlife. babesia spp. are documented in many domestic animals, including cattle, horses, pigs, dogs and cats. three cases affecting eastern grey kangaroos are described. the kangaroos exhibited neurological signs, depression and marked anaemia, and microscopic examination of blood smears revealed intraerythrocytic piroplasms. one to seven intraerythrocytic spherical, oval, pyriform and irregularly-shaped pa ... | 2012 | 24533316 |
| mother-offspring distances reflect sex differences in fine-scale genetic structure of eastern grey kangaroos. | natal dispersal affects life history and population biology and causes gene flow. in mammals, dispersal is usually male-biased so that females tend to be philopatric and surrounded by matrilineal kin, which may lead to preferential associations among female kin. here we combine genetic analyses and behavioral observations to investigate spatial genetic structure and sex-biased dispersal patterns in a high-density population of mammals showing fission-fusion group dynamics. we studied eastern gre ... | 2015 | 26045958 |
| experimental manipulation reveals few subclinical impacts of a parasite community in juvenile kangaroos. | large mammalian herbivores are commonly infected with gastrointestinal helminths. in many host species, these helminths cause clinical disease and may trigger conspicuous mortality events. however, they may also have subclinical impacts, reducing fitness as well as causing complex changes to host growth patterns and body condition. theoretically, juveniles should experience significantly greater costs from parasites, being immunologically naive and undergoing a significant growth phase. the aims ... | 2014 | 25161906 |
| anthelmintic treatment does not change foraging strategies of female eastern grey kangaroos, macropus giganteus. | large mammalian herbivores are commonly infected with gastrointestinal helminths. heavily parasitised hosts are likely to have increased nutritional requirements and would be predicted to increase their food intake to compensate for costs of being parasitised, but experimental tests of the impacts of these parasites on the foraging efficiency of hosts are lacking, particularly in free-ranging wildlife. we conducted a field experiment on a population of free-ranging eastern grey kangaroos (macrop ... | 2016 | 26784582 |
| prevalence and clinical significance of herpesvirus infection in populations of australian marsupials. | herpesviruses have been reported in several marsupial species, but molecular classification has been limited to four herpesviruses in macropodids, a gammaherpesvirus in two antechinus species (antechinus flavipes and antechinus agilis), a gammaherpesvirus in a potoroid, the eastern bettong (bettongia gaimardi) and two gammaherpesviruses in koalas (phascolarctos cinereus). in this study we examined a range of australian marsupials for the presence of herpesviruses using molecular and serological ... | 2015 | 26222660 |
| cryptosporidium cuniculus--new records in human and kangaroo in australia. | to date, cryptosporidium cuniculus has been found exclusively in rabbits and humans. the present study provides the first published molecular evidence for c. cuniculus in an australian human patient as well as a kangaroo. | 2014 | 25359081 |
| clinicopathologic correlates of fascioliasis in two eastern grey kangaroos (macropus giganteus). | infection with the introduced trematode fasciola hepatica was associated with anemia, mild to moderate azotemia, hypoalbuminemia, and elevated liver enzymes and creatine kinase values in two free-ranging eastern grey kangaroos (macropus giganteus). both kangaroos were euthanized because of the severity of clinical signs associated with infection. histopathologic changes included severe cholangiohepatitis, biliary hyperplasia, and fibrosis. hepatic, splenic, and intestinal amyloidosis was present ... | 2015 | 26667560 |
| seroprevalence of toxoplasma gondii infection in zoo and domestic animals in jiangxi province, china. | toxoplasma gondii is a zoonotic protozoan parasite that infects a wide range of warm-blooded animals throughout the world. in the present study, antibodies to t. gondii were determined using a commercial indirect hemagglutination (iha) test in wild animals in a zoo. three of 11 giraffes (giraffa camelopardalis) (27%), 1 of 5 wolves (canis lupus laniger) (20%), 1 of 6 hippopotamuses (hippopotamus amphibious) (17%), and 2 of 9 tundra swans (cygnus columbianus) (22%) were found to be positive. no a ... | 2017 | 28224883 |
| shedding light on the microbial community of the macropod foregut using 454-amplicon pyrosequencing. | twenty macropods from five locations in queensland, australia, grazing on a variety of native pastures were surveyed and the bacterial community of the foregut was examined using 454-amplicon pyrosequencing. specifically, the v3/v4 region of 16s rrna gene was examined. a total of 5040 otus were identified in the data set (post filtering). thirty-two otus were identified as 'shared' otus (i.e. present in all samples) belonging to either firmicutes or bacteroidetes (clostridiales/bacteroidales). t ... | 2013 | 23626688 |
| cytochrome p450 cyp3a in marsupials: cloning and identification of the first cyp3a subfamily member, isoform 3a70 from eastern gray kangaroo (macropus giganteus). | australian marsupials are unique fauna that have evolved and adapted to unique environments and thus it is likely that their detoxification systems differ considerably from those of well-studied eutherian mammals. knowledge of these processes in marsupials is therefore vital to understanding the consequences of exposure to xenobiotics. cytochromes p450 (cyps) are critically important in the oxidative metabolism of a diverse array of both xenobiotics and endogenous substrates. in this study we ha ... | 2012 | 22759518 |
| molecular evolution of the mitochondrial 12s rrna in ungulata (mammalia). | the complete 12s rrna gene has been sequenced in 4 ungulata (hoofed eutherians) and 1 marsupial and compared to 38 available mammalian sequences in order to investigate the molecular evolution of the mitochondrial small-subunit ribosomal rna molecule. ungulata were represented by one artiodactyl (the collared peccary, tayassu tajacu, suborder suiformes), two perissodactyls (the grevy's zebra, equus grevyi, suborder hippomorpha; the white rhinoceros, ceratotherium simum, suborder ceratomorpha), a ... | 1995 | 7490777 |
| a retrospective study of babesia macropus associated with morbidity and mortality in eastern grey kangaroos (macropus giganteus) and agile wallabies (macropus agilis). | this is a retrospective study of 38 cases of infection by babesia macropus, associated with a syndrome of anaemia and debility in hand-reared or free-ranging juvenile eastern grey kangaroos (macropus giganteus) from coastal new south wales and south-eastern queensland between 1995 and 2013. infection with b. macropus is recorded for the first time in agile wallabies (macropus agilis) from far north queensland. animals in which b. macropus infection was considered to be the primary cause of morbi ... | 2015 | 26106576 |
| a new species of cryptosporidium (apicomplexa: cryptosporidiidae) from eastern grey kangaroos (macropus giganteus). | cryptosporidium macropodum n. sp is described. oocysts of c. macropodum from the feces of kangaroos (macropus spp.) are morphologically indistinguishable from other mammalian cryptosporidium species, including c. parvum, c. hominis, c. suis, and c. canis. the oocysts are fully sporulated on excretion, lack sporocysts, and have an average width of 4.9 microm (4.5-6.0), a length of 5.4 microm (5.0-6.0), and a length:width ratio of 1.1. phylogenetic analyses of the 18s ribosomal rna, actin, and hea ... | 2008 | 18973420 |
| the cutaneous cervical plexus nerves of the crab-eating macaque (macaca fascicularis), eastern grey kangaroo (macropus giganteus), and koala (phascolarctos cinereus). | the origin, course and distribution of the cutaneous nerves of the cervical plexus were examined in the crab-eating macaque (4 body-halves), the grey kangaroo (5 body-halves) and koala (3 body-halves). the cutaneous nerves, n. auricularis magnus, nn. supraclaviculares, n. transversus colli, and n. transversus cervicis, were recognized. cranial and caudal branches were identified in the latter 2 nerves. some intermediate, relatively small branches were recognized between these main nerves. the n. ... | 1990 | 2093157 |
| livestock guardian dogs as surrogate top predators? how maremma sheepdogs affect a wildlife community. | use of livestock guardian dogs (lgds) to reduce predation on livestock is increasing. however, how these dogs influence the activity of wildlife, including predators, is not well understood. we used pellet counts and remote cameras to investigate the effects of free ranging lgds on four large herbivores (eastern gray kangaroo, common wombat, swamp wallaby, and sambar deer) and one mesopredator (red fox) in victoria, australia. generalized mixed models and one- and two-species detection models we ... | 2016 | 27777741 |
| follow your nose: leaf odour as an important foraging cue for mammalian herbivores. | studies of odour-driven foraging by mammals focus on attractant cues emitted by flowers, fruits, and fungi. yet, the leaves of many plant species worldwide produce odour, which could act as a cue for foraging mammalian herbivores. leaf odour may thus improve foraging efficiency for such herbivores in many ecosystems by reducing search time, particularly but not only, for plants that are visually obscured. we tested the use of leaf odour by a free-ranging mammalian browser, the swamp wallaby (wal ... | 0 | 27368609 |
| a simple framework for a complex problem? predicting wildlife-vehicle collisions. | collisions of vehicles with wildlife kill and injure animals and are also a risk to vehicle occupants, but preventing these collisions is challenging. surveys to identify problem areas are expensive and logistically difficult. computer modeling has identified correlates of collisions, yet these can be difficult for managers to interpret in a way that will help them reduce collision risk. we introduce a novel method to predict collision risk by modeling hazard (presence and movement of vehicles) ... | 2016 | 27648252 |
| functional morphology of the hindleg in two kangaroos macropus giganteus and aepyprymnus rufescens. | in this study the structures in the hindleg of the kangaroo which are potentially available for jumping were examined. specimens of two species, macropus giganteus and aepyprymnus rufescens, were examined and are described and compared. the basic pattern of the jump of the two species is similar. this is reflected anatomically by the fact that in both species the extensors of the hip, knee and ankle as a percentage of the total weight of the hindleg are greater than the flexors of the same joint ... | 1991 | 2059557 |
| lysine and glutamate transport in the erythrocytes of common brushtail possum, tammar wallaby and eastern grey, kangaroo. | it was recently coincidentally discovered, using 1h nmr spectroscopy, that the erythrocytes of two species of australian marsupials, tammar wallaby (macropus eugenii) and bettong (bettongia penicillata), contain relatively high concentrations of the essential amino acid lysine (agar ns, rae cd, chapman be, kuchel pw. comp biochem physiol 1991;99b:575-97). hence, in the present work the rates of transport of lysine into the erythrocytes from the common brushtail possum (dactylopsilia trivirgata) ... | 1998 | 9773487 |
| seroprevalence of retrovirus in north american captive macropodidae. | laboratory records of serology results from captive macropodidae sampled between 1997 and 2005 were reviewed to assess the seroprevalence of retrovirus exposure. serum samples from 269 individuals (136 males, 133 females) representing 10 species of macropods housed in 31 north american captive collections were analyzed for retrovirus antibody using an indirect immunofluorescent assay. the prevalence of positive antibody titers comparing male versus female, between species, between age groups, an ... | 2008 | 18816994 |
| sry and karyotypic status of one abnormal and two intersexual marsupials. | an intersexual agile wallaby (macropus agilis) with a penis, a pouch and four teats had a sex-chromosome constitution of xxy in lymphocytes and cultured fibroblasts; the sex-determining region y (sry) gene was present, consistent with the presence of a testis. an intersexual eastern grey kangaroo (macropus giganteus) with a small empty scrotum and no penis, and an abnormal red kangaroo (macropus rufus) with no penis, pouch or teats, both had xx sex-chromosome complements; the sry gene was not pr ... | 1997 | 9208434 |
| actin localisation and the effect of cytochalasin d on the osmotic tolerance of cauda epididymidal kangaroo spermatozoa. | this study examined the hypothesis that filamentous actin associated with the complex cytoskeleton of the kangaroo sperm head and tail may be contributing to lack of plasma membrane plasticity and a consequent loss of membrane integrity during cryopreservation. in the first study, the distribution of g and f actin within eastern grey kangaroo (egk, macropus giganteus) cauda epididymidal spermatozoa was successfully detected using dnase-fitc and a monoclonal f-actin antibody (ab205, abcam), respe ... | 2006 | 16990953 |
| characterisation of antisera to recombinant iga of the common brushtail possum (trichosurus vulpecula). | one of the limiting factors in understanding immune responses in marsupials is the scarcity of marsupial specific immunological reagents. this paper describes the characterisation of an antiserum raised against a recombinant protein of the constant region of the heavy chain of iga (c(alpha)) of the common brushtail possum (trichosurus vulpecula). the availability of a marsupial specific anti-iga provides a useful tool for the characterisation of mucosal immune responses in possums. anti-c(alpha) ... | 2002 | 12088648 |
| identification of mesotocin, lysine vasopressin, and phenypressin in the eastern gray kangaroo (macropus giganteus). | the neurohypophysial hormones of the eastern gray kangaroo (macropus giganteus) have been isolated through molecular sieving and paper chromatoelectrophoresis. one oxytocin-like and two vasopressin-like peptides have been found. these peptides have been characterized by amino acid analysis. mesotocin ([ile8]-oxytocin), has been identified both by amino acid composition and by behavior in partition chromatography. lysine vasopressin has been characterized by amino acid composition and by partial ... | 1983 | 6826050 |
| complete genomic characterisation of two novel poxviruses (wkpv and ekpv) from western and eastern grey kangaroos. | poxviruses have previously been detected in macropods with cutaneous papillomatous lesions, however to date, no comprehensive analysis of a poxvirus from kangaroos has been performed. here we report the genome sequences of a western grey kangaroo poxvirus (wkpv) and an eastern grey kangaroo poxvirus (ekpv), named for the host species from which they were isolated, western grey (macropus fuliginosus) and eastern grey (macropus giganteus) kangaroos. poxvirus dna from wkpv and ekpv was isolated and ... | 2017 | 28958947 |
| molecular detection of hybridization between sympatric kangaroo species in south-eastern australia. | introgressive hybridization has traditionally been regarded as rare in many vertebrate groups, including mammals. despite a propensity to hybridize in captivity, introgression has rarely been reported between wild sympatric macropodid marsupials. here we investigate sympatric populations of western (macropus fuliginosus) and eastern (macropus giganteus) grey kangaroos through 12 autosomal microsatellite loci and 626 bp of the hypervariable mitochondrial dna (mtdna) control region. m. fuliginosus ... | 2010 | 19812615 |
| evidence for hybridisation between paramacropostrongylus iugalis and p. typicus (nematoda:strongyloidea) in grey kangaroos, macropus fuliginosus and m. giganteus, in a zone of sympatry in eastern australia. | specimens of paramacropostrongylus iugalis and p. typicus, collected from eastern (macropus giganteus) and western (m. fuliginosus) grey kangaroos in new south wales and queensland, were examined morphologically and electrophoretically at 4 enzyme loci previously demonstrated to be diagnostic between the 2 species. collections of p. iugalis from m. giganteus from outside the zone of sympatry of the 2 kangaroo species conformed electrophoretically and morphologically with previous studies. within ... | 1997 | 9193941 |
| the effects of bromocriptine on lactation and subsequent reproduction in grey kangaroos, macropus fuliginosus and macropus giganteus. | both species of grey kangaroo were tested to determine whether a single exposure to bromocriptine in mid winter will terminate lactation, and whether females that cease to lactate will return to oestrus immediately and give birth early, or at the next summer breeding season. in experiment 1, 11 lactating western grey kangaroos (macropus fuliginosus) received injections either of saline (n = 2) or of bromocriptine at dose rates of 0.2, 1.0 or 5.0 mg kg-1 bodyweight (n = 3 per dose). pouch young o ... | 1994 | 7624511 |
| factors affecting the occurrence of enteritis in 10- to 12-month-old eastern grey kangaroos (macropus giganteus). | eastern grey kangaroos (macropus giganteus) younger than 19 months at kanazawa zoological gardens, japan, frequently died of enteritis. the main cause of death was coccidiosis. this study aimed to reveal retrospectively the clinical features of enteritis and factors contributing to its high occurrence. in addition, haematological and serum biochemical parameters in kangaroos younger than 24 months were analyzed. the findings suggested that enteritis occurrence was higher in 10- to 12-month-old k ... | 2018 | 29450906 |
| molar eruption and identification of the eastern grey kangaroo (macropus giganteus) at different ages. | to treat dental disorders and estimate age, it is important that veterinarians understand teeth eruption sequence for the animal in question. few dental images of the eastern grey kangaroo have been published. in the present study, radiographic imagings of 29 kangaroos, ranging in age from 12 months to 10 years 9 months, was used to surveil the replacement of premolars and the eruption of molars. these images revealed eruption patterns in five stages, while the second and third deciduous premola ... | 2018 | 29445072 |
| tall young females get ahead: size-specific fecundity in wild kangaroos suggests a steep trade-off with growth. | when resources are limited, organisms face allocation conflicts. indeterminate growth creates a persistent conflict with reproduction, as growth may enhance future reproduction, but diverts resources from current reproduction. little is known about allocation trade-offs in mammals with indeterminate growth. we studied growth and reproduction in adult female eastern grey kangaroos (macropus giganteus), an iteroparous mammal with indeterminate growth. allocation trajectories varied with age and si ... | 2018 | 29127479 |
| plasma endotoxin activity in eastern grey kangaroos (macropus giganteus) with lumpy jaw disease. | progressive pyogranulomatous osteomyelitis involving the mandible or maxilla of captive macropods, referred to as "lumpy jaw disease (ljd)", is one of the most significant causes of illness and death in captive macropods. the aim of the present study was to evaluate the relationship between the severity of ljd and plasma endotoxin activity in kangaroos. plasma samples obtained from moderate (n=24) and severe ljd (n=12), and healthy kangaroos (n=46), were diluted 1:20 in endotoxin-free water and ... | 2017 | 28484148 |
| early expression of manual lateralization in bipedal marsupials. | robust lateralization in forelimb use has recently been found in bipedal, but not quadrupedal, marsupial mammals. the link between bipedality and handedness, occurring in both marsupials and primates, remains to be investigated. to shed light on the developmental origins of marsupial manual lateralization, infants of macropod marsupials were examined before and shortly after the acquisition of habitual bipedal posture and locomotion. forelimb preferences were assessed in natural, not artificiall ... | 2017 | 28287756 |
| skeletal fluorosis in marsupials: a comparison of bone lesions in six species from an australian industrial site. | in this study we explored the prevalence, type, location and severity of skeletal lesions in six species of australian marsupial (macropus giganteus, notamacropus rufogriseus, wallabia bicolor, phascolarctos cinereus, trichosurus vulpecula and pseudocheirus peregrinus) from high and low-fluoride environments. lesions occurred to varying extents in all species, and lesion distribution varied with biomechanical differences in gait and mastication. bone fluoride levels increased with severity of pe ... | 2017 | 28185728 |
| developmental and post-eruptive defects in molar enamel of free-ranging eastern grey kangaroos (macropus giganteus) exposed to high environmental levels of fluoride. | dental fluorosis has recently been diagnosed in wild marsupials inhabiting a high-fluoride area in victoria, australia. information on the histopathology of fluorotic marsupial enamel has thus far not been available. this study analyzed the developmental and post-eruptive defects in fluorotic molar enamel of eastern grey kangaroos (macropus giganteus) from the same high-fluoride area using light microscopy and backscattered electron imaging in the scanning electron microscope. the fluorotic enam ... | 2016 | 26895178 |
| interspecific variation in the diets of herbivores in an industrial environment: implications for exposure to fluoride emissions. | atmospheric fluorides (gaseous and particulate) are deposited on, and absorbed by, vegetation. ingested fluoride accumulates in calcified tissues of vertebrates, and if it is excessive, it may lead to dental and skeletal fluorosis. the prevalence, form and severity of the effects vary greatly between species. foraging strategy can be an important determinant of fluoride exposure in herbivores, because foliar fluoride concentrations vary between plant species, for example, according to vertical a ... | 2016 | 26873827 |
| reconstructing temporal variation of fluoride uptake in eastern grey kangaroos (macropus giganteus) from a high-fluoride area by analysis of fluoride distribution in dentine. | trace element profiling in the incrementally formed dentine of mammalian teeth can be applied to reconstruct temporal variation of incorporation of these elements into the tissue. using an electron microprobe, this study analysed fluoride distribution in dentine of first and third mandibular molars of free-ranging eastern grey kangaroos inhabiting a high-fluoride area, to assess temporal variation in fluoride uptake of the animals. fluoride content in the early-formed dentine of first molars was ... | 2016 | 26736058 |
| individual heterogeneity and offspring sex affect the growth-reproduction trade-off in a mammal with indeterminate growth. | reproduction can lead to a trade-off with growth, particularly when individuals reproduce before completing body growth. kangaroos have indeterminate growth and may always face this trade-off. we combined an experimental manipulation of reproductive effort and multi-year monitoring of a large sample size of marked individuals in two populations of eastern grey kangaroos to test the predictions (1) that reproduction decreases skeletal growth and mass gain and (2) that mass loss leads to reproduct ... | 2016 | 26714827 |
| dental fluorosis and skeletal fluoride content as biomarkers of excess fluoride exposure in marsupials. | particulate and gaseous fluoride emissions contaminate vegetation near fluoride-emitting industries, potentially impacting herbivorous wildlife in neighboring areas. dental fluorosis has been associated with consumption of fluoride-contaminated foliage by juvenile livestock and wildlife in europe and north america. for the first time, we explored the epidemiology and comparative pathology of dental fluorosis in australian marsupials residing near an aluminium smelter. six species (macropus gigan ... | 2015 | 26188404 |
| skeletal pathology of eastern grey kangaroos (macropus giganteus) exposed to high environmental fluoride levels in south-eastern australia. | significantly elevated bone fluoride concentrations have been reported in a population of eastern grey kangaroos (macropus giganteus) resident near a fluoride-emitting aluminum smelter in southeastern australia. this paper describes the skeletal and synovial joint lesions observed post mortem in the same sample of kangaroos (n = 76). the prevalence and severity of skeletal lesions, specifically the formation of multiple, large, smooth exostoses over the diaphysis of long bones (especially, but n ... | 2015 | 26186808 |
| phylogeography of eastern grey kangaroos, macropus giganteus, suggests a mesic refugium in eastern australia. | phylogeographic studies around the world have identified refugia where fauna were able to persist during unsuitable climatic periods, particularly during times of glaciation. in australia the effects of pleistocene climate oscillations on rainforest taxa have been well studied but less is known about the effects on mesic-habitat fauna, such as the eastern grey kangaroo (macropus giganteus). the eastern grey kangaroo is a large mammal that is common and widespread throughout eastern australia, pr ... | 2015 | 26024370 |
| adoption in eastern grey kangaroos: a consequence of misdirected care? | adoption is rare in animals and is usually attributed to kin selection. in a 6-year study of eastern grey kangaroos (macropus giganteus), 11 of 326 juveniles were adopted. we detected eight adoptions by observing behavioural associations and nursing between marked mothers and young and three more by analysing the relatedness of mothers and young using microsatellite dna. four adoptions involved reciprocal switches and three were by mothers whose own pouch young were known to subsequently disappe ... | 2015 | 25970624 |
| eaten out of house and home: impacts of grazing on ground-dwelling reptiles in australian grasslands and grassy woodlands. | large mammalian grazers can alter the biotic and abiotic features of their environment through their impacts on vegetation. grazing at moderate intensity has been recommended for biodiversity conservation. few studies, however, have empirically tested the benefits of moderate grazing intensity in systems dominated by native grazers. here we investigated the relationship between (1) density of native eastern grey kangaroos, macropus giganteus, and grass structure, and (2) grass structure and rept ... | 2014 | 25501680 |
| chronic phalaris toxicity in eastern grey kangaroos (macropus giganteus). | seven eastern grey kangaroos (macropus giganteus) grazing pastures including phalaris spp. in victoria showed neurological deficits characterised by ataxia, head tremors and collapse. gross examination of the brains and spinal cords of affected kangaroos showed a greenish discolouration in several regions of the grey matter. histologically, intracytoplasmic accumulation of pigment granules was detected in the neurons, most prominently in the thalamus, brainstem and ventral horns of the spinal co ... | 2014 | 25424766 |
| the complete mitochondrial genome of the eastern grey kangaroo (macropus giganteus). | we present the complete mitochondrial genome (accession number: lk995454) of an iconic australian species, the eastern grey kangaroo (macropus giganteus). the mitogenomic organization is consistent with other marsupials, encoding 13 protein-coding genes, 22 trna genes, 2 ribosomal rna genes, an origin of light strand replication and a control region or d-loop. no repetitive sequences were detected in the control region. the m. giganteus mitogenome exemplifies a combination of trna gene order and ... | 2016 | 25103427 |
| experimental manipulation of female reproduction demonstrates its fitness costs in kangaroos. | when resources are scarce, female mammals should face a trade-off between lactation and other life-history traits such as growth, survival and subsequent reproduction. kangaroos are ideal to test predictions about reproductive costs because they may simultaneously lactate and carry a young, and have indeterminate growth and a long breeding season. an earlier study in three of our five study populations prevented female eastern grey kangaroos (macropus giganteus) from reproducing during one repro ... | 2015 | 24995997 |
| a reproductive management program for an urban population of eastern grey kangaroos (macropus giganteus). | traditionally, culling has been the expedient, most common, and in many cases, the only tool used to control free-ranging kangaroo populations. we applied a reproductive control program to a population of eastern grey kangaroos confined to a golf course in south east queensland. the program aimed to reduce fecundity sufficiently for the population to decrease over time so that overgrazing of the fairways and the frequency of human-animal conflict situations were minimised. in 2003, 92% of the fe ... | 2014 | 26480325 |
| the efficacy of anthelmintic drugs against nematodes infecting free-ranging eastern grey kangaroos, macropus giganteus. | effective anthelmintics are valuable tools for biologists conducting manipulative field experiments to examine effects of parasites on wildlife. however, before such experiments are carried out the efficacy of these drugs must be determined. we conducted three field experiments (may 2010-september 2011) on free-ranging eastern grey kangaroos (macropus giganteus) at a golf course in victoria, australia, treating animals with the anthelmintic drugs moxidectin (subcutaneous, 1 mg/kg, 2 mg/kg), iver ... | 2013 | 23778602 |
| isolation and characterization of a novel herpesvirus from a free-ranging eastern grey kangaroo (macropus giganteus). | we isolated a macropodid herpesvirus from a free-ranging eastern grey kangaroo (macropus giganteous) displaying clinical signs of respiratory disease and possibly neurologic disease. sequence analysis of the herpesvirus glycoprotein g (gg) and glycoprotein b (gb) genes revealed that the virus was an alphaherpesvirus most closely related to macropodid herpesvirus 2 (mahv-2) with 82.7% gg and 94.6% gb amino acid sequence identity. serologic analyses showed similar cross-neutralization patterns to ... | 2013 | 23307380 |
| investigating differences in vigilance tactic use within and between the sexes in eastern grey kangaroos. | aggregation is thought to enhance an animal's security through effective predator detection and the dilution of risk. a decline in individual vigilance as group size increases is commonly reported in the literature and called the group size effect. however, to date, most of the research has only been directed toward examining whether this effect occurs at the population level. few studies have explored the specific contributions of predator detection and risk dilution and the basis of individual ... | 2012 | 22984563 |
| molecular evidence for a cryptic species within the parasitic nematode macroponema comani (strongyloidea: cloacininae). | nematodes resembling macroponema comani, a common parasite of eastern grey kangaroos, macropus giganteus, in eastern australia were collected from an unexpected host species, the northern wallaroo, macropus robustus woodwardi, in the northern territory, representing a highly disjunct occurrence. although these specimens showed no morphological differences when compared with ma. comani from m. giganteus, sequencing of the first and second internal transcribed spacers its-1 and its-2 of the nuclea ... | 2012 | 22710283 |
| lens growth and protein changes in the eastern grey kangaroo. | development in marsupials takes place predominantly ex utero while the young is attached to a nipple in the mother's pouch, very different from that in other species. this study was undertaken to examine whether this affects lens growth and the production of lens proteins in kangaroos. | 2011 | 22194649 |
| withdrawn: cytochrome p450 cyp3a in marsupials: characterisation of the first identified cyp3a subfamily member, isoform 3a70 from eastern grey kangaroo (macropus giganteus). | this article has been withdrawn at the request of the author(s) and/or editor. the publisher apologizes for any inconvenience this may cause. the full elsevier policy on article withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. | 2011 | 21888957 |
| experimental manipulation of fertility reveals potential lactation costs in a free-ranging marsupial. | lactation is the most energetically expensive component of reproduction in mammals. theory predicts that reproducing females will adjust their behaviour to compensate for increased nutritional demands. however, experimental tests are required, since comparisons of the behaviour of naturally reproducing and non-reproducing females cannot distinguish between true costs of reproduction, individual differences or seasonal variation. we experimentally manipulated reproduction in free-ranging, eastern ... | 2011 | 21733874 |