| 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 |
| provenance of a new zealand brush-tailed rock-wallaby (petrogale penicillata) population determined by mitochondrial dna sequence analysis. | modern molecular genetic techniques provide a valuable means to address questions concerning the origins of naturalized populations. brush-tailed rock-wallabies (petrogale penicillata), of unknown provenance, were introduced to new zealand from australia in the early 1870s. while the introduced wallabies prospered in new zealand, their antecedents in australia experienced widespread local population extinctions as part of a drastic, widespread and ongoing decline. in this study, a polymerase cha ... | 2001 | 11742554 |
| 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 |
| new species of wallabinema beveridge, 1983 (nematoda: strongyloidea) and a redescription of w. gallardi (johnston & mawson, 1939) from australian macropodid marsupials. | two new species of wallabinema beveridge, 1983 are described from the sacculated fore-stomachs of macropodid marsupials in australia. wallabinema petrogale n. sp. from the rock wallabies petrogale penicillata (j. gray) and p. inornata gould, from queensland, differs from all congeners in having its four sub-median lips subdivided at the base. wallabinema macropodis n. sp. from the black stripe wallaby macropus dorsalis (j. gray) and the red-necked pademelon thylogale thetis (lesson), also from q ... | 2020 | 31927704 |
| fine-scale spatial genetic correlation analyses reveal strong female philopatry within a brush-tailed rock-wallaby colony in southeast queensland. | we combine spatial data on home ranges of individuals and microsatellite markers to examine patterns of fine-scale spatial genetic structure and dispersal within a brush-tailed rock-wallaby (petrogale penicillata) colony at hurdle creek valley, queensland. brush-tailed rock-wallabies were once abundant and widespread throughout the rocky terrain of southeastern australia; however, populations are nearly extinct in the south of their range and in decline elsewhere. we use pairwise relatedness mea ... | 2004 | 15548278 |
| estimating population size of endangered brush-tailed rock-wallaby (petrogale penicillata) colonies using faecal dna. | the brush-tailed rock-wallaby (petrogale penicillata) is an endangered species in southeastern australia and many of the remaining populations are declining. the steep rocky habitat and shy nature of the species make it difficult to obtain data on population parameters such as abundance and recruitment. faecal pellet counts from scat plots are commonly used to monitor population trends but these are imprecise and difficult to relate to absolute population size. we conducted a noninvasive genetic ... | 2006 | 16367832 |
| hematology and serum biochemistry of the brush-tailed rock-wallaby (petrogale penicillata). | in australia the brush-tailed rock-wallaby (petrogale penicillata) is the subject of a national recovery plan, and several sites have been selected for reintroductions. condition of wild populations and individual animals can be monitored using hematologic and serum biochemistry analytes, and hematologic variables have been correlated with postrelease survival in other species. prior to such monitoring, reference values for blood variables are required, but these data have not been available for ... | 2008 | 18436662 |
| nematode community structure in the brush-tailed rock-wallaby, petrogale penicillata: implications of captive breeding and the translocation of wildlife. | despite an increasing appreciation of the disease risks associated with wild-life translocations, the effects which captive breeding programs exert on parasite communities remain understudied. this may be attributed, in part, to the current lack of rapid and cost-effective techniques for comparing parasite assemblages between host populations. terminal restriction fragment length polymorphism (t-rflp) analysis of the rdna region encompassing the internal transcribed spacers (its-1 and its-2) and ... | 2012 | 22796751 |
| into the wild: dissemination of antibiotic resistance determinants via a species recovery program. | management strategies associated with captive breeding of endangered species can establish opportunities for transfer of pathogens and genetic elements between human and animal microbiomes. the class 1 integron is a mobile genetic element associated with clinical antibiotic resistance in gram-negative bacteria. we examined the gut microbiota of endangered brush-tail rock wallabies petrogale penicillata to determine if they carried class 1 integrons. no integrons were detected in 65 animals from ... | 2013 | 23717399 |
| three divergent lineages within an australian marsupial (petrogale penicillata) suggest multiple major refugia for mesic taxa in southeast australia. | mesic southeastern australia represents the continent's ancestral biome and is highly biodiverse, yet its phylogeographic history remains poorly understood. here, we examine mitochondrial dna (mtdna) control region and microsatellite diversity in the brush-tailed rock-wallaby (petrogale penicillata;n = 279 from 31 sites), to assess historic evolutionary and biogeographic processes in southeastern australia. our results (mtdna, microsatellites) confirmed three geographically discrete and genetica ... | 2014 | 24772286 |
| evaluation of next generation sequencing for the analysis of eimeria communities in wildlife. | next-generation sequencing (ngs) techniques are well-established for studying bacterial communities but not yet for microbial eukaryotes. parasite communities remain poorly studied, due in part to the lack of reliable and accessible molecular methods to analyse eukaryotic communities. we aimed to develop and evaluate a methodology to analyse communities of the protozoan parasite eimeria from populations of the australian marsupial petrogale penicillata (brush-tailed rock-wallaby) using ngs. an o ... | 2016 | 26944624 |
| investigation into potential transmission sources of giardia duodenalis in a threatened marsupial (petrogale penicillata). | assemblages of the protozoan parasite giardia duodenalis common in humans and domestic species are increasingly identified in wildlife species, raising concern about the spill-over of pathogens from humans and domestic animals into wildlife. here, the identity and prevalence of g. duodenalis in populations of a threatened marsupial, the brush-tailed rock-wallaby (petrogale penicillata), was investigated. identification of g. duodenalis isolates, across three loci (18s rrna, β-giardin and gdh), f ... | 2015 | 25986646 |
| diversity of cryptosporidium in brush-tailed rock-wallabies (petrogale penicillata) managed within a species recovery programme. | host-parasite relationships are likely to be impacted by conservation management practices, potentially increasing the susceptibility of wildlife to emerging disease. cryptosporidium, a parasitic protozoan genus comprising host-adapted and host-specific species, was used as an indicator of parasite movement between populations of a threatened marsupial, the brush-tailed rock-wallaby (petrogale penicillata). pcr screening of faecal samples (n = 324) from seven wallaby populations across new south ... | 2015 | 25834789 |
| parasites of the brush-tailed rock-wallaby (petrogale penicillata). | the brush-tailed rock-wallaby (petrogale penicillata) is listed as vulnerable on the international union for conservation of nature (iucn) red list of threatened species. parasitic diseases have been proposed as possible contributing factors to the decline of the species, but very little is known about the effects of parasites on this host. this study determined the antibody prevalence of the protist toxoplasma gondii in a wild brush-tailed rock-wallaby population from three neighboring colonies ... | 2010 | 20090035 |
| cystic echinococcosis in a wild population of the brush-tailed rock-wallaby (petrogale penicillata), a threatened macropodid. | infection of small macropodids with the larval stage of echinococcus granulosus can cause fatalities as well as significant pulmonary impairment and other adverse sequelae. the brush-tailed rock-wallaby (petrogale penicillata) is a small macropodid listed as vulnerable on the iucn's red list of threatened species. this study used radiographic techniques to determine the prevalence and severity of pulmonary hydatid infection and growth rates of hydatid cysts in a wild population of this macropodi ... | 2008 | 18442430 |
| population structure of brush-tailed rock-wallaby (petrogale penicillata) colonies inferred from analysis of faecal dna. | genetic data obtained using faecal dna were used to elucidate the population structure of four brush-tailed rock-wallaby (petrogale penicillata) colonies located in wollemi national park, new south wales. the results suggested that the four sampled colonies are genetically differentiated and do not form a panmictic unit. based on assignment tests, approximately 5% of sampled individuals were inferred to be dispersers and both male and female migrants were detected. multilocus spatial autocorrela ... | 2006 | 16367833 |
| restricted mating dispersal and strong breeding group structure in a mid-sized marsupial mammal (petrogale penicillata). | ecological genetic studies have demonstrated that spatial patterns of mating dispersal, the dispersal of gametes through mating behaviour, can facilitate inbreeding avoidance and strongly influence the structure of populations, particularly in highly philopatric species. elements of breeding group dynamics, such as strong structuring and sex-biased dispersal among groups, can also minimize inbreeding and positively influence levels of genetic diversity within populations. rock-wallabies are high ... | 2006 | 16911216 |
| organ of jacobson in the kangaroo and rock wallaby (macropus giganteus and petrogale penicillata). | | 1892 | 17231984 |
| review of surrogacy program for endangered victorian brush-tailed rock wallaby (petrogale penicillata) with special reference to animal husbandry and veterinary considerations. | a surrogacy program to increase the reproductive rate of the critically endangered victorian brush-tailed rock wallaby (petrogale penicillata), initially developed in semicaptive conditions, was established in close captivity at adelaide zoological gardens in 1998. pouch young were removed from their mothers on days 8-20 or 40-45 after parturition and placed onto the teat of a tammar wallaby (macropus eugenii) or yellow-footed rock wallaby (petrogale xanthopus xanthopus) surrogate mother. during ... | 2006 | 17312809 |