| 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 |
| prevalence of toxoplasma gondii antibody in wild macropods. | an enzyme-linked immunosorbent assay (elisa) was developed to measure total antibody to toxoplasma gondii in serum samples from macropods. the validity of the assay was established by comparing parasite isolation in mice for 17 tasmanian pademelons (thylogale billardierii) and 17 bennett's wallabies (macropus rufogriseus rufogriseus). the elisa was then used to detect antibody against t. gondii in serum from 236 macropods, collected from 21 locations in tasmania, including flinders island. antib ... | 1988 | 3421883 |
| klossiella (apicomplexa, klossiellidae) in petaurid and macropodid marsupials in australia. | six new species of klossiella are described in the kidneys of australian marsupials: klossiella rufogrisei in bennett's wallaby, macropus rufogriseus; klossiella rufi in the red kangaroo, macropus rufus; klossiella thylogale in the red-bellied or tasmanian pademelon, thylogale billardierii; klossiella beveridgei in the spectacled hare-wallaby, lagorchestes conspicillatus; klossiella bettongiae in the tasmanian bettong, bettongia gaimardi; and klossiella schoinobatis in the petaurid greater glide ... | 1985 | 3930707 |
| 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 |
| differences in a ribosomal dna sequence of morphologically indistinguishable species within the hypodontus macropi complex (nematoda: strongyloidea). | the nucleotide sequence of the second internal transcribed spacer (its-2) from ribosomal dna has been determined for 3 members of the hypodontus macropi species complex. sequences were compared from nematodes collected from 3 species of australian macropodid marsupial, petrogale persephone, macropus robustus robustus and thylogale billardierii. the its-2 of each operational taxonomic unit ranged from 287 to 292 bases in length, and had a gc content of 36.6-40.1%. differences in nucleotide sequen ... | 1995 | 7635644 |
| an electrophoretic analysis of patterns of speciation in cloacina clarkae, c. communis, c. petrogale and c. similis (nematoda:strongyloidea) from macropodid marsupials. | an electrophoretic study was conducted on cloacina clarkae, c. communis, c. petrogale and c. similis based on 19 enzyme loci. c. communis was widely distributed in macropus robustus, showing some genetic variation among populations but occasionally switching to other macropodid hosts (m. agilis, m. antilopinus). c. similis occurred in members of the petrogale penicillata complex, macropus dorsalis and thylogale billardierii, but showed no evidence of genetic differentiation in spite of its occur ... | 1997 | 9193942 |
| 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 |
| four new species of macropodinium (ciliophora: litostomatea) from australian wallabies and pademelons. | samples of macropodinium spp. were collected from 3 new macropodid species: from 21 of 28 (75%) black-striped wallabies (macropus dorsalis); 10 of 11 (91%) swamp wallabies (wallabia bicolor); and 22 of 43 (51%) tasmanian pademelons (thylogale billardierii). the examination of ciliate morphology by silver impregnation and scanning electron microscopy led to the redescription of the genus macropodinium and the description of 4 new species: ma. tricresta sp. nov. and ma. spinosus sp. nov. from m. d ... | 2001 | 11596919 |
| analyses of mitochondrial amino acid sequence datasets support the proposal that specimens of hypodontus macropi from three species of macropodid hosts represent distinct species. | hypodontus macropi is a common intestinal nematode of a range of kangaroos and wallabies (macropodid marsupials). based on previous multilocus enzyme electrophoresis (mee) and nuclear ribosomal dna sequence data sets, h. macropi has been proposed to be complex of species. to test this proposal using independent molecular data, we sequenced the whole mitochondrial (mt) genomes of individuals of h. macropi from three different species of hosts (macropus robustus robustus, thylogale billardierii an ... | 2013 | 24261823 |
| genetic variation within the hypodontus macropi (nematoda: strongyloidea) complex from macropodid marsupial hosts in australia. | genetic variation was investigated in the strongylid nematode hypodontus macropi from macropodid marsupials using the second internal transcribed spacer of ribosomal dna. a total of 547 specimens from ten species of hosts, representing all of the known hosts of the parasite, from across the australian continent was examined. phylogenetic analyses revealed distinct genetic clades in each of macropus agilis, m. dorsalis, m. rufogriseus, m. bicolor, petrogale persephone, thylogale billardierii and ... | 2012 | 23161349 |
| hypodontus macropi mönnig, 1929, a hookworm-like parasite of macropodid marsupials. | hypodontus macropi mönnig, 1929, is redescribed and its taxonomic affinities discussed. h. macropi is recorded for the first time from wallabia bicolor, macropus robustus, m. fuliginosus, m. dorsalis, m. agilis and thylogale billardierii. the method of attachment of the parasite and gross and histopathological changes associated with it are described. free living larval stages are described. experimental infestations were attempted but were not successful. hypodontus thetidis johnston and mawson ... | 1979 | 575542 |
| gastric squamous tumor in the stomach of a pademelon (thylogale billardieri) associated with an infestation with labiostrongylus sp. larvae. | | 1971 | 5163731 |
| sarcocystis mucosa in bennetts wallabies and pademelons from tasmania. | macroscopic gastrointestinal sarcocysts were detected in 36 of 270 (13%) tasmanian pademelons (thylogale billardierii) and 47 of 292 (16%) bennetts wallabies (macropus rufogriseus) from january 1995 to march 1996 at onshore and offshore study sites in tasmania (australia). the sarcocysts were characterized using light and electron microscopy. the ultrastructure of the primary cyst wall was consistent with that of sarcocystis mucosa, an apicomplexan parasite commonly found in macropodid marsupial ... | 1998 | 9706570 |
| dietary partitioning of australia's two marsupial hypercarnivores, the tasmanian devil and the spotted-tailed quoll, across their shared distributional range. | australia's native marsupial fauna has just two primarily flesh-eating 'hypercarnivores', the tasmanian devil (sarcophilus harrisii) and the spotted-tailed quoll (dasyurus maculatus) which coexist only on the island of tasmania. devil populations are currently declining due to a fatal transmissible cancer. our aim was to analyse the diet of both species across their range in tasmania, as a basis for understanding how devil decline might affect the abundance and distribution of quolls through rel ... | 2017 | 29176811 |
| pregnancy in a marsupial, the tasmanian pademelon (thylogale billardierii). | the tasmanian pademelon, thylogale billardierii, is a medium-sized wallaby that adapts well to captivity and, unlike the well-studied tammar wallaby, is capable of breeding all year round. it may, therefore, be a useful model species for research into the reproductive biology of macropod marsupials. this paper presents necessary background data on histological changes in the reproductive organs and the rate of embryonic growth during gestation in t1 billardierii. after day 4 rpy (removal of youn ... | 1999 | 10864174 |
| a two-phase model for smoothly joining disparate growth phases in the macropodid thylogale billardierii. | generally, sigmoid curves are used to describe the growth of animals over their lifetime. however, because growth rates often differ over an animal's lifetime a single curve may not accurately capture the growth. broken-stick models constrained to pass through a common point have been proposed to describe the different growth phases, but these are often unsatisfactory because essentially there are still two functions that describe the lifetime growth. to provide a single, converged model to age ... | 2011 | 22022369 |
| spatial scale and opportunities for choice influence browsing and associational refuges of focal plants. | 1. foraging decisions by herbivores depend on variation in food types, the scale(s) at which this variation occurs and the opportunity and capacity for herbivores to respond to such variation. these decisions affect not only the herbivores themselves, but also the vulnerability of individual plants to being eaten. associational plant refuges, in which neighbouring plants alter focal plant vulnerability, are an emergent property of foraging decisions. 2. using the red-bellied pademelon (thylogale ... | 2009 | 19594661 |
| response of a southern temperate marsupial, the tasmanian pademelon (thylogale billardierii), to historical and contemporary forest fragmentation. | despite only limited pleistocene glacial activity in the southern hemisphere, temperate forest species experienced complex distributional changes resulting from the combined effects of glaciation, sea level change and increased aridity. the effects of these historical processes on population genetic structure are now overlain by the effects of contemporary habitat modification. in this study, 10 microsatellites and 629 bp of the mitochondrial control region were used to assess the effects of his ... | 2009 | 19573029 |
| enteritis caused by cylicospirura heydoni infection in two tasmanian pademelons (thylogale billardierii). | | 2006 | 17092329 |
| how do soil nutrients affect within-plant patterns of herbivory in seedlings of eucalyptus nitens? | this study assessed how the palatability of leaves of different age classes (young, intermediate and older) of eucalyptus nitens seedlings varied with plant nutrient status, based on captive feeding trials with two mammalian herbivores, red-bellied pademelons (thylogale billardierii), and common brushtail possums (trichosurus vulpecula). seedlings were grown under three nutrient treatments (low, medium and high), and we determined how palatability was related to chemical and physical characteris ... | 2006 | 17031701 |
| genetic variation in resistance of eucalyptus globulus to marsupial browsers. | the evolution of plant defensive traits in response to selection pressures imposed by herbivores is central to co-evolutionary theory. to demonstrate the role of herbivores as selective agents on plant resistance there must be variability in plant resistance to herbivores within a plant population. this variability must be under genetic control, and the variability in plant resistant traits and consequently herbivore damage to plants must reflect variability in plant fitness. we used a common eu ... | 2002 | 28547153 |
| metabolic actions of cortisol in a macropodid marsupial thylogale billardierii. | in undisturbed pademelon wallabies (thylogale billardierii) with indwelling jugular venous catheters, an increase in the plasma cortisol concentration from 0.25 +/- 0.05 to 1.35 +/- 0.15 (s.e.m.) mumol/l in 2 h, during i.v. infusion of cortisol at 1.0 mg/kg per h, caused no significant change in the plasma glucose concentration from the control value of 4.26 +/- 0.25 mmol/l. the rates of appearance (ra) and metabolic clearance (mcr) of glucose, measured by steady-state isotope dilution, also did ... | 1988 | 3339294 |
| adrenocortical functions in a macropodid marsupial thylogale billardierii. | in a study of adrenocortical functions in macropodid marsupials, measurements were made of the effects of acth infusion, ether stress and adrenaline infusion on plasma corticosteroid and glucose concentrations in wallabies (thylogale billardierii) provided with indwelling venous catheters. the mean plasma total glucocorticoid concentration in undisturbed males and females was 80 +/- 5 (s.e.m.) micrograms/l, of which more than 90% was cortisol. this fraction declined to 68% of the total at the hi ... | 1986 | 3020143 |
| vibration-evoked responses from lamellated corpuscles in the legs of kangaroos. | a group of lamellated corpuscles are present in the interosseous region of the legs of macropod marsupials. structurally, they are similar to, but simpler than the pacinian corpuscles of eutherian mammals, in having fewer lamellae. responses of mechanoreceptors with axons coursing in the interosseous nerve were recorded from filaments, containing single functional units, dissected from the sciatic nerve of the wallaby thylogale billardierii. the receptors were all maximally sensitive to stimuli ... | 1986 | 3720894 |
| covid-19 restrictions provide a brief respite from the wildlife roadkill toll. | the covid-19 pandemic provides a rare opportunity to reveal the impact of reduced human activity on wildlife. i compared traffic volume and wildlife roadkill data along 18 km of highway before, during and after a 3-month period of covid-19 restrictions with baseline data from the previous four years. three marsupial herbivores comprised 89% of the 1820 roadkills recorded during the 4.5-year survey period: rufous-bellied pademelon thylogale billardierii (31.5% of total), common brushtail possum t ... | 2021 | 33612848 |