Journal articles on the topic 'Wallabies Victoria'
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1
Paplinska, Justyna Zofia, Richard L. C. Moyle, Peter D. M. Temple-Smith, and Marilyn B. Renfree. "Reproduction in female swamp wallabies, Wallabia bicolor." Reproduction, Fertility and Development 18, no. 7 (2006): 735. http://dx.doi.org/10.1071/rd06024.
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The swamp wallaby (Wallabia bicolor) is a common, medium-sized, browsing macropodid marsupial that is unique in many ways. Relatively little is known about the reproductive biology of this species. Previous studies have proposed that the swamp wallaby has a pre-partum oestrus because the gestation period ( x ¯ -->x = 35.5 days, n = 4) is on average longer than the oestrus period ( x ¯ -->x = 31.0 days, n = 5) and the period from the removal of pouch young (RPY) to mating ( x ¯ -->x = 26.0days, n = 3). In the current study, the period from RPY to birth was confirmed at x ¯ -->x = 31.25 days (n = 4) in captive animals, consistent with a pre-partum oestrus. A growth curve for swamp wallaby pouch young was constructed from the progeny of captive animals to estimate the age and date of birth of young in a wild, culled population in South Gippsland, Victoria, and the reproduction of females in the wild throughout the year was examined. Young were born in every month of the year, with no statistically significant variation in the number of young born in each month. Females did not have a period of seasonal anoestrus and conceived throughout the year. Female swamp wallabies in South Gippsland bred continuously throughout the period of this study.
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Cooke, B. D. "Swamp wallaby (Wallabia bicolor) distribution has dramatically increased following sustained biological control of rabbits." Australian Mammalogy 42, no. 3 (2020): 321. http://dx.doi.org/10.1071/am19037.
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Swamp wallabies have dramatically extended their distribution through western Victoria and south-eastern South Australia over the last 40 years. Newspaper reports from 1875 onwards show that on European settlement, wallaby populations were confined to eastern Victoria, including the ranges around Melbourne, the Otway Ranges and Portland District of south-western Victoria, and a tiny part of south-eastern South Australia. Populations contracted further with intense hunting for the fur trade until the 1930s. In the late 1970s, however, wallabies began spreading into drier habitats than those initially recorded. Possible causes underlying this change in distribution are discussed; some seem unlikely but, because wallabies began spreading soon after the introduction of European rabbit fleas as vectors of myxomatosis, the cumulative effects of releases of biological agents to control rabbits appear important. A caution is given on assuming that thick vegetation in high-rainfall areas provides the only habitat suitable for swamp wallabies, but, most importantly, the study shows how native mammals may benefit if rabbit abundance is reduced.
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Davis, Naomi E., Graeme Coulson, and David M. Forsyth. "Diets of native and introduced mammalian herbivores in shrub-encroached grassy woodland, south-eastern Australia." Wildlife Research 35, no. 7 (2008): 684. http://dx.doi.org/10.1071/wr08042.
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Effective management of sympatric mammalian herbivore populations requires an understanding of interspecific interactions. At Wilsons Promontory National Park, Victoria, sympatric native and introduced mammalian herbivores are thought to be contributing to modification of shrub-encroached Coastal Grassy Woodland. We estimated the diets of the five terrestrial mammalian herbivore species present using microhistological techniques. The diets of introduced hog deer (Axis porcinus) and native swamp wallabies (Wallabia bicolor) consisted mainly of dicots. The diet of introduced European rabbits (Oryctolagus cuniculus) contained similar proportions of monocots and dicots. The diets of native eastern grey kangaroos (Macropus giganteus) and native common wombats (Vombatus ursinus) consisted mainly of monocots but kangaroos also consumed moderate amounts of dicots. Deer and wallabies consumed more native plants than did the other species and rabbits consumed more exotic plants than did all other species except kangaroos. Diet breadth was narrowest for kangaroos and broadest for swamp wallabies and hog deer. Overlap in food use by the five herbivores was high, particularly between deer and wallabies, and between kangaroos and both rabbits and wombats. Our results suggest that the potential impacts of native and introduced species on the vegetation of Coastal Grassy Woodland are similar, and that the entire herbivore assemblage will need to be managed to increase fine fuel loads if fire is used as a restoration tool.
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Coulson, G. "The Effect of Drought on Road Mortality of Macropods." Wildlife Research 16, no. 1 (1989): 79. http://dx.doi.org/10.1071/wr9890079.
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Road-kills of eastern grey kangaroos, Macropus giganteus, and swamp wallabies, Wallabia bicolor, were monitored during and after the severe 1981-83 drought in central Victoria, Australia. These were compared with a survey of the same area prior to the drought. The frequency of road-kills of both species during the drought was higher than pre-drought and post-drought levels, and over 9 years the seasonal frequency of kangaroo road-kills was inversely related to the rainfall of the previous season. Road-kills of kangaroos were predominantly males, and almost half were juveniles.
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Molyneux, Jenny, David A. Taggart, Anthony Corrigan, and Sean Frey. "Home-range studies in a reintroduced brush-tailed rock-wallaby (Petrogale penicillata) population in the Grampians National Park, Victoria." Australian Mammalogy 33, no. 2 (2011): 128. http://dx.doi.org/10.1071/am10039.
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In 2008, after 9 years of presumed local extinction, brush-tailed rock-wallabies (Petrogale penicillata) were reintroduced at Moora Moora Creek in the Grampians National Park, western Victoria. Since little is known about this species in Victoria, the reintroduction presented an important opportunity to gain information on the species’ ecology. Radio-tracking was undertaken and home range determined for three individuals released 11 months before this study and a further five individuals that were released at the commencement of the study in October 2009. Home-range size showed little variation amongst individuals, with a mean overall home range of 26 ha (±1.69, s.e.) and a mean core home range of 2.5 ha (±0.24, s.e.). Newly reintroduced individuals showed higher levels of association with wallabies from the same release and greater site fidelity when known conspecifics were close. Within 5 months of release, newly reintroduced animals showed home ranges similar in both size and distribution to those of animals released 11 months prior.
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van Eeden, Lily, Julian Di Stefano, and Graeme Coulson. "Diet selection by the brush-tailed rock-wallaby (Petrogale penicillata) in East Gippsland, Victoria." Australian Mammalogy 33, no. 2 (2011): 162. http://dx.doi.org/10.1071/am10038.
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Resource selection by animals is assumed to have fitness benefits so quantifying resource selection can help determine suitable conditions for species persistence and be used to inform management plans. We studied diet selection by the ‘Critically Endangered’ Victorian brush-tailed rock-wallaby (Petrogale penicillata) by comparing proportions of plant functional groups consumed with their availability in the three remaining rock-wallaby colonies in East Gippsland, Victoria. We estimated availability using an adaptation of the point transect method, identifying 63 plant functional groups and their abundance within the foraging range. Using microhistological analysis of faecal pellets we determined diet composition at the resolution of plant functional groups: ferns, forbs, monocots, shrubs and trees. At all sites the plant functional groups constituting most of the diet were forbs, monocots and shrubs. However, diet composition and selection was different among the sites, particularly with regards to the consumption and selection of monocots, which appeared to be favoured at two sites, and of shrubs, which were favoured at the third site. Overall, the diet composition suggested that brush-tailed rock-wallabies consume a diverse range of food types. The results can be used to improve current management by increasing the availability of preferred food types, perhaps through targeted fire regimes, and to guide the selection of reintroduction sites.
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L. Close, R., M. D. B. Eldridge, J. N. Bell, and J. Reside. "A genetic study of the Brush-tailed Rock Wallaby Petrogale penicillata in East Gippsland and relevance for management of the species in Victoria." Pacific Conservation Biology 1, no. 4 (1994): 367. http://dx.doi.org/10.1071/pc940367.
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Within the Australian macropod genus Petrogale (rock wallabies) nine chromosomally distinct species occur along the Great Dividing Range of eastern Australia (Sharman et al. 1990; Eldridge et al. 1991a; Eldridge and Close 1992). However, Close et al. (1988) found Petrogale from the Grampians, Victoria and from Jenolan Caves, New South Wales, to be remarkably similar despite their 800 km separation (Fig. 1). Standard and C-banded karyotypes of both populations were typical of Petrogale penicillata and were identical except that one Grampians animal was heterozygous for absence of a C-band on chromosome 2. Apart from their smaller physical size, the only difference was that the Grampians animals were homozygous for a unique Pgm allele.
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Close, RL, S. Ingleby, RAH Vanoorschot, AA Gooley, DA Briscoe, and GB Sharman. "Identification of Rock-Wallabies, Petrogale-Penicillata (Gray, 1825), From the Grampians, Victoria, and Comparison With Conspecifics by Examination of Chromosomes, Blood Proteins, Cell-Surface Antigens, Parasites and Morphology." Australian Journal of Zoology 36, no. 1 (1988): 99. http://dx.doi.org/10.1071/zo9880099.
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Two rock-wallabies were captured in the Victoria Range of the Grampians, the first specimens obtained from Victoria for scientific study. Their chromosomes identified them as Petrogale penicillata and, although the animals appeared to be smaller than their nearest studied conspecifics from Jenolan Caves, N.S.W., 800 km to the north-east, analysis of blood proteins, red blood cell epitopes and parasites indicated little genetic divergence. This lack of differentiation is unusual in a genus in which, further north along the Great Dividing Range, nine chromosomally distinct forms occur within 1500 km. One animal was heterozygous for presence and absence of a major C-band on the second largest chromosome; chromosomes without this band have not been found in other mainland P. penicillata. No electrophoretic variation was detected at 23 genetic loci, even though one allele was unique among P. penicillata so far studied. Although only one extant colony was found, other disused sites were located 30 km further north. Despite the apparent low numbers of animals, there is some evidence that additional colonies may be found.
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Soderquist, Todd. "What we don't know and haven't learned about cost - benefit prioritisation of rock-wallaby management." Australian Mammalogy 33, no. 2 (2011): 202. http://dx.doi.org/10.1071/am10053.
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Research and translocations of brush-tailed rock-wallabies (Petrogale penicillata) in New South Wales have, in conjunction with studies in Victoria and Queensland, provided extensive insights yet also document the high variability in the species’ response to management. Nonetheless, experts are being asked to quantify predicted response for cost–benefit prioritisation models that will rank threatened species and populations worthy of future funding, with little consideration of the basic principles behind adaptive management. The weaknesses of these prioritisation models must be evaluated carefully by experts in order that appropriate advice is provided which genuinely assists decision-making. I explore the questions facing rock-wallaby ecologists as a case study of how much more we need to know and learn within adaptive approaches to conservation before our predictions are robust.
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Kleemann, S., D. Sandow, M. Stevens, D. J. Schultz, D. A. Taggart, and A. Croxford. "Non-invasive monitoring and reintroduction biology of the brush-tailed rock-wallaby (." Australian Journal of Zoology 69, no. 2 (February 8, 2022): 41–54. http://dx.doi.org/10.1071/zo21009.
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Thirty-nine endangered brush-tailed rock-wallabies (Petrogale penicillata) were reintroduced to Grampians National Park, western Victoria, between 2008 and 2012. Subsequent high mortality, low breeding, and no recruitment were linked to fox predation and physical disturbance during monitoring. From 2014 to 2017, the colony was left undisturbed and monitored only by remote camera. Five adult animals were identified across this period (1 ♂ and 3 ♀s – all tagged; and one untagged female), and an average of 0.7 pouch young were birthed per tagged female per year. In 2019, camera-monitoring and non-invasive genetic monitoring (faecal) were used to identify colony members, genetic diversity, and breeding. Camera monitoring in 2019 identified the same five individuals, whereas genetic monitoring using 12 microsatellites identified eight individuals (two male and six female genotypes). Genetic diversity within the colony was moderate (expected heterozygosity (He) = 0.655, observed heterozygosity (Ho) = 0.854). Leaving the colony undisturbed after 2013 correlated with improved adult survival, increased breeding, and successful recruitment of young to the population. Recommendations for the Grampians colony include continuation of regular camera- and scat monitoring to improve our understanding of the reintroduction biology of P. penicillata and other marsupials in open, unfenced landscapes.
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Schultz, David J., Brian G. Rich, Wayne Rohrig, Peter J. McCarthy, Brian Mathews, Tim J. Schultz, Tony Corrigan, and David A. Taggart. "Investigations into the health of brush-tailed rock-wallabies (Petrogale penicillata) before and after reintroduction." Australian Mammalogy 33, no. 2 (2011): 235. http://dx.doi.org/10.1071/am11010.
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The health of reintroduced animals has received little attention despite the potential impacts of poor animal health on the overall success of the reintroduction and potential risks to the host environment. As part of a reintroduction program, captive-bred brush-tailed rock-wallabies (BTRWs) (Petrogale penicillata) were hardened-off for at least three months before release into the Grampians National Park, western Victoria. A total of 41 animals were involved in the project, with the 24 selected for hardening-off aged between 1.1 and 4.3 years. In all, 21 animals have been released, with data from 11 collected from all sites (captive, hardening-off and reintroduced). At each site animals were periodically trapped, anaesthetised, physically examined, weighed, and blood sampled for haematological and biochemical data over three calendar years. All reintroduced animals were radio-collared. This study presents data across sites (167 samples), two seasons (winter/spring, 95 samples; summer/autumn, 72 samples), two different age groups (juveniles <1.25 years and subadults/adults >1.25 years) and both sexes. Seventy percent of released BTRWs and 90% of sympatric macropodids were positive for macropod herpes virus; none of three BTRWs tested for toxoplasmosis was positive. Faeces were collected opportunistically for flotation and ectoparasites were collected and identified. While physical examinations with anaesthesia were safe and eliminated some animals from being released, they failed to detect all cases of oral cavity disease. A reference range of haematological and biochemical parameters have been established for this evolutionarily significant unit of BTRW. Lymphocyte/neutrophil ratios of released animals suggested that the main acute stressor is a handling phenomenon but the oxidative stress index suggested that animals were coping with their environment. Significant site differences were noted for several variables including red cell mass (red cell count, haemoglobin, haematocrit), white cell count, lymphocyte/neutrophil ratio, albumin globulin ratio, creatinine, urate, ascorbic acid, α-tocopherol, retinol, cholinesterase, total carotenoids and oxidative stress index. Significant seasonal differences were noted for some variables, including red cell mass, ascorbic acid, albumin globulin ratio, cholinesterase, total carotenoids and retinol. Significant age differences were noted for red cell mass, albumin and dietary antioxidants. The only sex-related difference related to higher retinol levels in females. Those parameters related to diet, e.g. albumin, retinol, α-tocopherol, ascorbic acid, and total carotenoids were consistent with those found in other rock-wallabies.
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Paplinska, Justyna Zofia, Mark D. B. Eldridge, Desmond W. Cooper, Peter D. M. Temple-Smith, and Marilyn B. Renfree. "Use of genetic methods to establish male-biased dispersal in a cryptic mammal, the swamp wallaby (Wallabia bicolor)." Australian Journal of Zoology 57, no. 1 (2009): 65. http://dx.doi.org/10.1071/zo09014.
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Mammalian dispersal tends to be male-biased although female-biased dispersal has also been reported in a range of taxa. Most of our knowledge on mammalian sex-biased dispersal is based on studies of eutherians and less work has been done on the direction and causes of sex-biased dispersal in marsupials. This study investigated dispersal of swamp wallabies between two habitat patches in South Gippsland, Victoria, using genetic methods. A Bayesian clustering test showed a high level of genetic exchange between the two habitat patches despite their separation by 10–17 km of cleared land, a creek and a highway. Females in the overall sample were more closely related to each other than males were to each other and females within habitat patches were more closely related than females between habitat patches whereas the converse was true for males. Bayesian inference showed that more males were migrating from the east to the west habitat patch whereas the converse was true for females and the male migration rate was higher than the female migration rate. The differential migration rate did not cause a significant difference in relatedness between patches in females but it did in males. These relatedness and migration patterns indicate that dispersal in the swamp wallaby is male-biased.
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Bennett, A., and G. Coulson. "Evaluation of an exclusion plot design for determining the impacts of native and exotic herbivores on forest understoreys." Australian Mammalogy 30, no. 2 (2008): 83. http://dx.doi.org/10.1071/am08010.
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To study the effects of grazing and browsing by Sambar deer (Cervus unicolor), swamp wallaby (Wallabia bicolor) and wombats (Vombatus ursinus) exclosure plots measuring 10 m x 10 m were erected in the Upper Yarra and O'Shannassy water catchments near Melbourne, Victoria. Total exclusion fences and partial exclusion fences were erected. Design details and costs are provided. Operational problems are discussed.
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Troy, S., and G. Coulson. "Home range of the swamp wallaby, Wallabia bicolor." Wildlife Research 20, no. 5 (1993): 571. http://dx.doi.org/10.1071/wr9930571.
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Home range in the swamp wallaby, Wallabia bicolor (Marsupialia : Macropodoidea) was examined using radio-tracking in a 150-ha remnant of mixed eucalypt forest at Healesville, Victoria. Three methods were used to calculate home-range size: minimum convex polygons, fourier transform MAP(O.95) and MAP(0.50) estimation, and harmonic mean 50% isopleths and 95% isopleths. The minimum convex polygon method produced the largest estimate of home-range area (16.01 +/-.45 ha). Each method required a different number of fixes before home-range area estimates reached an asymptote. These data showed that W. bicolor have small, overlapping home ranges and that the shape of the home range varied between individuals. Home-range area was larger than previously reported for this species, and there was no significant difference between the sexes in home-range size.
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HU, M., R. B. GASSER, N. B. CHILTON, and I. BEVERIDGE. "Genetic variation in the mitochondrial cytochrome c oxidase subunit 1 within three species of Progamotaenia (Cestoda: Anoplocephalidae) from macropodid marsupials." Parasitology 130, no. 1 (December 13, 2004): 117–29. http://dx.doi.org/10.1017/s0031182004006377.
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Sequence variation within 3 morphologically defined species of the anoplocephalid cestode genus Progamotaenia (P. ewersi, P. macropodis and P. zschokkei) was investigated using the cytochrome c oxidase subunit 1 gene. The magnitude of genetic variation detected within each morphospecies suggests that, in each instance, several cryptic species are present. Within P. ewersi, 5 genetically distict groups of cestodes were detected, 1 shared by Macropus robustus and M. parryi in Queensland, 1 in M. agilis from Queensland, 1 in Petrogale assimilis from Queensland, 1 in Macropus fuliginosus from South Australia and 1 in Wallabia bicolor from Victoria. In P. macropodis, cestodes from M. robustus from Queensland, Western Australia and the Northern Territory, M. parryi from Queensland and M. eugenii from South Australia were genetically distinct from those in Wallabia bicolor from Queensland and Victoria and from M. fuliginosus from South Australia. P. zschokkei consisted of a number of genetically distinct groups of cestodes, 1 in Lagorchestes conspicillatus and L. hirsutus from Queensland and the Northern Territory respectively, 1 in Petrogale herberti, P. assimilis and M. dorsalis from Queensland, 1 in Onychogalea fraenata from Queensland, 1 in M. agilis from Queensland and 1 in Thylogale stigmatica and T. thetis from Queensland. In general, genetic groups within each morphospecies were host specific and occurred predominantly in a particular macropodid host clade. Comparison of genetic relationships of cestodes with the phylogeny of their hosts revealed examples of colonization (P. zschokkei in M. agilis) and of host switching (P. zschokkei in M. dorsalis).
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Aussavy, M., E. Bernardin, A. Corrigan, J. Hufschmid, and I. Beveridge. "Helminth parasite communities in four species of sympatric macropodids in western Victoria." Australian Mammalogy 33, no. 1 (2011): 13. http://dx.doi.org/10.1071/am10020.
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Helminth parasites of Macropus fuliginosus, M. giganteus, M. rufogriseus and Wallabia bicolor were examined in a region of western Victoria, Australia, where all four species of hosts are sympatric. M. fuliginosus and M. giganteus shared most of their parasites while the helminth communities of M. rufogriseus and W. bicolor were distinctive. The sympatric distribution of the host species studied provides evidence in support of the hypothesis that the differences between the parasite communities of M. fuliginosus–M. giganteus compared with those of M. rufogriseus and W. bicolor are due to parasite specificity rather than to host ecological differences. However, lack of detailed data on the ecological differences of these hosts in areas of sympatry prevents more precise conclusions being drawn on the reasons for the distinctiveness of the parasite communities.
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Dovey, L., V. Wong, and P. Bayne. "An Overview of The Status and Management of Rock-wallabies (Petrogale) In New South Wales." Australian Mammalogy 19, no. 2 (1996): 163. http://dx.doi.org/10.1071/am97163.
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Two species of rock-wallabies occur in New South Wales; the Yellow-footed Rock-wallaby Petrogale xanthopus in the far west and the Brush-tailed Rock-wallaby Petrogale penicillata in the east. Both species have contracted in distribution and abundance across their former range and are threatened in NSW. The P. xanthopus population in NSW now comprises only two sub-populations. Removal of large numbers of goats, thought to be the primary threat, has not halted the wallaby's decline. Fox and cat predation is now considered the major threat. Fox control is currently being conducted. P. penicillata has undergone a dramatic and continuing decline from being common throughout south-eastern Australia to currently being extremely rare in the southern and western parts of its range and found only in isolated colonies throughout the north of its range. Predation (particularly fox, but including dog and cat), once again, is considered the major threat. A recovery program has been commenced involving the media and wider community in locating extant colonies, as well as developing and implementing Population Management Plans. This program has documented further local extinctions and extremely low numbers of individuals in colonies in the southern and western parts of the range. While no surviving colonies are known between the Shoalhaven area and the Victorian border, there remain more and larger colonies in the north of the state.
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Potter, Sally, Robert L. Close, David A. Taggart, Steven J. B. Cooper, and Mark D. B. Eldridge. "Taxonomy of rock-wallabies, Petrogale (Marsupialia: Macropodidae). IV. Multifaceted study of the brachyotis group identifies additional taxa." Australian Journal of Zoology 62, no. 5 (2014): 401. http://dx.doi.org/10.1071/zo13095.
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Defining taxonomic units is an important component of understanding how biodiversity has formed, and in guiding efforts to sustain it. Understanding patterns of biodiversity across the monsoonal tropics of northern Australia is limited, with molecular technology revealing deep phylogenetic structure and complex evolutionary histories. The brachyotis group of rock-wallabies (Petrogale spp.), which currently consists of three species (Petrogale brachyotis, P. burbidgei and P. concinna) distributed across north-western Australia, provides an example where current taxonomy does not reflect the true diversity or phylogenetic relationships within the group. We have used an integrative approach, combining morphological data, together with DNA sequences (~1000 bp mitochondrial DNA; ~3000 bp nuclear DNA) to resolve relationships within P. brachyotis. Phylogenetic and morphological analyses indicated that P. brachyotis (sensu lato) represents at least two separate species: P. brachyotis (sensu stricto) from the Kimberley and western Northern Territory, and P. wilkinsi from the northern and eastern Northern Territory. Petrogale brachyotis (sensu stricto) can be separated on genetic and morphological evidence into two subspecies: P. b. brachyotis and P. b. victoriae (subsp. nov.). Distinct genetic lineages have also been identified within both P. brachyotis and P. wilkinsi, as well as within P. burbidgei and P. concinna.
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Paplinska, J. Z., R. L. C. Moyle, P. D. Temple-Smith, and M. B. Renfree. "15. Seasonal breeding in a Victorian population of the swamp wallaby (Wallabia bicolor)." Reproduction, Fertility and Development 15, no. 9 (2003): 15. http://dx.doi.org/10.1071/srb03ab15.
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Lindenmayer, D. B., R. D. Incoll, R. B. Cunningham, M. L. Pope, C. F. Donnelly, C. I. MacGregor, C. Tribolet, and B. E. Triggs. "Comparison of hairtube types for the detection of mammals." Wildlife Research 26, no. 6 (1999): 745. http://dx.doi.org/10.1071/wr99009.
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We compare detection rates of different species of mammals by three types of hairtubes in both the mountain ash forests of the central highlands of Victoria and a range of wet forest types at Tumut in southern New South Wales. The types of hairtubes were a small-diameter PVC pipe, a large-diameter PVC pipe and a newly constructed tapered hair funnel. Data were analysed for brown antechinus (Antechinus stuartii), bush rat (Rattus fuscipes), common wombat (Vombatus ursinus), swamp wallaby (Wallabia bicolor) and common and mountain brushtail possums (Trichosurus vulpecula and T. caninus). The most effective hairtube type (i.e. the one yielding the highest number of detections) varied between species: small hairtubes forR. fuscipes, hair funnels for Trichosurus spp., and large hairtubes for V. ursinus and W. bicolor. For A. stuartii, the most effective hairtube type differed between the two study regions (hair funnels in Victoria and small hairtubes at Tumut). Detection by more than one hairtube type at a given plot was uncommon. Our findings have important implications for field surveys and how data gathered from such studies are interpreted. For example, if the aim of field survey is to detect a wide range of species then several types of hairtubes may need to be deployed.
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BEVERIDGE, I., and S. SHAMSI. "Revision of the Progamotaenia festiva species complex (Cestoda: Anoplocephalidae) from Australasian marsupials, with the resurrection of P. fellicola (Nybelin, 1917) comb. nov." Zootaxa 1990, no. 1 (January 30, 2009): 1–29. http://dx.doi.org/10.11646/zootaxa.1990.1.1.
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Examination of all available specimens currently identified as Progamotaenia festiva from macropodid and vombatid marsupials together with comparison with published genetic data has allowed the recognition of seven new species based on morphological differences: P. adspersa sp. nov. from Macropus irma (Jourdan) from Western Australia, P. aemulans sp. nov. from Macropus dorsalis (Gray) from Queensland, P. corniculata sp. nov. from Lagorchestes conspicillatus Gould from Queensland, P. dilatata sp. nov. from Wallabia bicolor (Desmarest) from Victoria, New South Wales, the Australian Capital Territory and Queensland, P. onychogale sp. nov. from Onychogalea unguifera (Gould) from Queensland, P. pulchella sp. nov. from Setonix brachyurus (Quoy & Gaimard) from Western Australia, and P. vombati sp. nov. from Vombatus ursinus (Shaw) from Victoria, New South Wales and the Australian Capital territory. Progamotaenia fellicola (Nybelin, 1917) comb. nov. is resurrected and is reported from Macropus agilis (Gould) from Western Australia, the Northern Territory and Queensland in Australia as well as from Papua New Guinea. Within the redefined taxon P. festiva (Rudolphi, 1819), three morphotypes were recognised: the first lacking a space between the testis fields and the osmoregulatory canals, found in M. giganteus Shaw (type host), M. rufus (Desmarest), M. robustus Gould and M. dorsalis, the second with a space between the testis fields and the osmoregulatory canals, found in M. parryi Bennett and M. robustus and the third, with a space between the testis fields and the osmoregulatory canals but with a greater number of testes per segment, found in M. antilopinus (Gould) and M. robustus. Because the morphotypes are not entirely concordant with the genetic groups identified within P. festiva, all have been retained provisionally within this taxon.
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Wilson B, A., and J. Wolrige. "Assessment of the Diet of the Fox, Vulpes vulpes, in Habitats of the Eastern Otway Ranges, Victoria." Australian Mammalogy 21, no. 2 (1999): 201. http://dx.doi.org/10.1071/am00201.
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The Eastern Otway Ranges, Victoria have highly diverse native mammal communities. Although the Red Fox (Vulpes vulpes) has been recorded in the area the extent of its distribution and effects on native mammals are unclear. The aims of this study were to analyse the diet of the Red Fox in the study area, to compare the diet between seasons and habitats (woodland, forest, heathland) and to assess the diet in the habitat of the New Holland Mouse (Pseudomys novaehollandiae) which is endangered in Victoria. Fox scats collected monthly in each habitat were analysed to determine the composition of the diet and small mammal trapping was carried out in each habitat to determine potential small mammal prey species. Overall, mammals (42%) constituted the highest proportion in the fox scats and sixteen species, including nine native species were recorded. Large-sized native mammals including Swamp Wallaby (Wallabia bicolor) and the Eastern Grey Kangaroo (Macropus giganteus) constituted 60% of the mammal diet category. The occurrence of plant material was significantly different between seasons, being more abundant in winter. There was a significant difference in the frequency of large introduced mammals in the diet between seasons, with consumption being higher in winter. The occurrence of large, native mammalian prey increased from 15% in winter to 47% in autumn. The frequency of occurrence of the major dietary categories (plant material, invertebrates, reptiles, birds, mammals) was similar across habitats. Large introduced mammals occurred in higher proportions in the diet from woodland habitat. Small mammals were more numerous in scats of heathland and scats from the forest contained the highest abundance of medium-sized mammals. There was no evidence of the endangered New Holland Mouse in scats collected from habitat where a population of the species was present.
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Davis, Naomi E., and Graeme Coulson. "Habitat-specific and season-specific faecal pellet decay rates for five mammalian herbivores in south-eastern Australia." Australian Mammalogy 38, no. 1 (2016): 105. http://dx.doi.org/10.1071/am15007.
Full textAbstract:
The accuracy of population abundance estimates of mammalian herbivores from faecal pellet counts is potentially affected by pellet decay. We collected fresh pellet groups from hog deer (Axis porcinus), European rabbit (Oryctolagus cuniculus), eastern grey kangaroo (Macropus giganteus), swamp wallaby (Wallabia bicolor) and common wombat (Vombatus ursinus) (n = 300 per species) at Wilsons Promontory National Park, Victoria, Australia. We deposited five pellet groups per species per month within each of five vegetation types in the park, then monitored pellet group decay over 24 months. We demonstrate that age estimation of pellet groups was inaccurate and is unlikely to improve the efficiency of pellet counts. We present habitat- and species-specific estimates of pellet and pellet group decay using two measures: decay rate (the proportion of pellets surviving per unit of time); and mean time to decay. We explain how our data can be used to optimise faecal pellet count design, and to improve the accuracy of both indices and estimates of abundance from pellet counts. The variability observed in the decay of pellet groups among vegetation types, and for species among seasons, suggests that caution should be used if applying pellet decay rates over long time-frames or to locations with differing environmental conditions.
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Davis, Naomi E., Ian R. Gordon, and Graeme Coulson. "The influence of evolutionary history and body size on partitioning of habitat resources by mammalian herbivores in south-eastern Australia." Australian Journal of Zoology 65, no. 4 (2017): 226. http://dx.doi.org/10.1071/zo16075.
Full textAbstract:
Habitat use is the most common dimension along which sympatric species partition resources to reduce competition. We conducted faecal pellet counts at Wilsons Promontory National Park, Victoria, to examine habitat use by an assemblage of mammalian herbivores with disparate evolutionary histories and varying body size: introduced European rabbit (Oryctolagus cuniculus) and hog deer (Axis porcinus), and native eastern grey kangaroo (Macropus giganteus), swamp wallaby (Wallabia bicolor) and common wombat (Vombatus ursinus). Overlap in habitat use was low between four pairs of species, suggesting spatial partitioning of resources to reduce the potential for interspecific competition. More generally, however, overlap in habitat use was high, particularly between native and introduced grazers. These results indicate the potential for competition if resources were limiting and suggest that assemblages of species with independent evolutionary histories have inherently less resource partitioning to facilitate coexistence than assemblages of species with common evolutionary histories. Despite evidence of high overlap in habitat use between native and introduced species at a broad scale, and variation in the competitive ability of species, coexistence was likely facilitated by niche complementarity, including temporal and fine-scale partitioning of spatial resources. There was no relationship between body size and the diversity of habitats used. In contemporary assemblages of native and introduced species, evolutionary history is likely to have a strong influence on resource partitioning.
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Coates, Terry D. "Growth of the Black Wallaby ( Wallabia bicolor ) population at the Cranbourne Gardens (Royal Botanic Gardens Victoria), after the implementation of fox control." Ecological Management & Restoration 22, S1 (November 2021): 50–53. http://dx.doi.org/10.1111/emr.12476.
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