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Journal articles on the topic 'Yellow-footed rock wallaby'

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Published: 4 June 2021
Last updated: 20 February 2023

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1

Gordon, Gregory, Peter McRae, Leong Lim, Darryl Reimer, and Gary Porter. "The conservation status of the yellow-footed rock-wallaby in Queensland." Oryx 27, no. 3 (July 1993): 159–68. http://dx.doi.org/10.1017/s0030605300027964.

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A survey of the distribution of the yellow-footed rock-wallaby Petrogale xanthopus was carried out in Queensland from 1984 to 1987. The species was found at 44 sites to the north and north-west of Adavale in south-western Queensland, mainly in the rugged country along the edges of low sandstone tablelands and hills. The size of the rock-wallaby population could not be estimated with accuracy, but is considered to be of the order of 5000–10,000 animals. The species is vulnerable because of property development in the area and possibly because of competition from other herbivores. The authors recommend regular monitoring of the population size.
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2

Blumstein, Daniel T., Janice C. Daniel, and Christopher S. Evans. "Yellow-Footed Rock-Wallaby Group Size Effects Reflect A Trade-Off." Ethology 107, no. 7 (July 24, 2001): 655–64. http://dx.doi.org/10.1046/j.1439-0310.2001.00699.x.

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3

Hornsby, PE, and EY Corlett. "Differential responses by sympatric macropodids to severe drought." Australian Mammalogy 26, no. 2 (2004): 185. http://dx.doi.org/10.1071/am04185.

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Responses to severe drought by two sympatric macropodids, the yellow-footed rock-wallaby (Petrogale xanthopus) and the euro (Macropus robustus erubescens) were examined at a site in the North Flinders Ranges of South Australia. The results indicate that the two species respond differentially to drought conditions. It was observed that small fluctuations occurred in the P. xanthopus population. In contrast, M. r. erubescens evidenced significant mortality, especially among larger animals.
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4

Sharp, Andy, Melinda Norton, Chris Havelberg, Wendy Cliff, and Adam Marks. "Population recovery of the yellow-footed rock-wallaby following fox control in New South Wales and South Australia." Wildlife Research 41, no. 7 (2014): 560. http://dx.doi.org/10.1071/wr14151.

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Context Introduced herbivores and carnivores have significantly altered ecosystems across Australia and have been implicated in the decline and extinction of many species, particularly in the arid and semiarid zones. The experimental confirmation of agents of decline is a fundamental step in threatened species management, allowing for an efficient allocation of resources and effective species recovery. Aims Following unsuccessful attempts to increase the abundance of yellow-footed rock-wallaby populations through concerted goat control across the southern extent of their range, the primary aim of our study was to determine whether fox predation was limiting the recovery of wallaby populations. Methods Intensive fox-control programs (1080 baiting) were initiated around wallaby subpopulations in New South Wales and South Australia. Wallaby numbers were monitored for a three-year period before and after the initiation of fox control, and ANCOVA used to examine for differences between the subpopulation’s rate of increase (r). Observational data were used to determine the demographic effects of fox predation on wallaby colonies in New South Wales. Key results Wallaby subpopulations that were treated with fox control increased significantly, while experimental control subpopulations remained at consistently low levels. Juvenile and subadult wallabies were apparent within the treated New South Wales subpopulation, but almost absent from the control subpopulation, suggesting that fox predation focussed primarily on these age classes. Conclusions Fox predation is a major limiting factor for southern wallaby populations and fox control should be the primary management action to achieve species recovery. Implications Although a significant limiting factor, the regulatory effect of fox predation was not assessed and, as such, it cannot be confirmed as being the causal factor responsible for the historic declines in wallaby abundance. The determination of whether fox predation acts in a limiting or regulatory fashion requires further experimentation, but its resolution will have significant implications for the strategic allocation of conservation resources.
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5

Norton, Melinda A., Andy Sharp, and Adam Marks. "An evaluation of faecal pellet counts to index rock-wallaby population size." Australian Mammalogy 33, no. 2 (2011): 221. http://dx.doi.org/10.1071/am10048.

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This study assessed the efficacy of faecal pellet counts to index population size within yellow-footed rock-wallaby (Petrogale xanthopus) colonies. One hundred 1-m2 quadrats were permanently located in each of two colonies and emptied of pellets on a monthly basis between September 1996 and August 1998. The mean number of pellets (MNP) accumulated per season (quadrats as replicates) and a mean pellet presence/absence per quadrat index (MPAP) were calculated for each colony. Other population estimates and indices (direct counts, mark–recapture and aerial surveys) were also collected at these colonies or drawn from other studies, allowing comparison with the pellet data. The trends in abundance across seasons suggested by these additional estimates and indices were an overall increase at one colony with no change at the other. While these trends were reflected by the seasonal MNP trends across the eight seasons monitored, this was less often the case for the like-season MNP comparisons. The large degree of variation in seasonal MNP data may render it unsuitable for use in such short-term like-season comparisons. The MPAP seasonal data were also found to be unreliable as an index of population size for yellow-footed rock-wallaby. In Spring 1997, one pellet collection period was missed, resulting in a combined September–October 1997 count at each colony. This increased period between pellet counts appears to have resulted in increased pellet decomposition and/or loss. This disrupted sampling regime produced a marked discrepancy in the pellet indices, particularly in the colony with more individuals and thus more pellets to lose, and highlights the importance of a structured sampling regime.
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6

Sharp, Andy. "Drinking behaviour of yellow-footed rock-wallabies (Petrogale xanthopus celeris) in semiarid Queensland." Australian Mammalogy 33, no. 2 (2011): 189. http://dx.doi.org/10.1071/am10049.

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This study examined the patterns of water use by yellow-footed rock-wallabies (Petrogale xanthopus celeris) at a colony in semiarid Queensland. Visitation by wallabies to an earthen tank was monitored, over a three-year period, via radio-tracking. The rate of visitation to the tank was negatively linked to both rainfall in the previous month and rainfall during tracking, while being positively related to temperature. Drinking rate increased considerably when mean pasture moisture content fell below 20%. The regular visitation to the tank suggests that Queensland populations of wallabies may have a stronger reliance on free water than previously thought. The closure of artificial waters on conservation reserves and pastoral properties could result in dramatic declines in wallaby numbers and potentially localised extinctions.
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7

C. Pope, Lisa, Andy Sharp, and Craig Moritz. "The genetic diversity and distinctiveness of the Yellow-footed Rock-wallaby Petrogale xanthopus (Gray, 1854) in New South Wales." Pacific Conservation Biology 4, no. 2 (1998): 164. http://dx.doi.org/10.1071/pc980164.

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Yellow-footed Rock-wallabies (YFRW) Petrogale xanthopus have declined in numbers since European settlement from past hunting for skins, habitat disturbance and predation and competition with feral animals (Gordon et al. 1978, 1993; Copley 1983; Henzell 1990). This has led to the species being classed as potentially vulnerable to extinction in Australia (Kennedy 1992), and endangered in New South Wales (Schedule 1, Threatened Species Conservation Act, 1995).
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8

LAVERY, HUGH, YUITI ONO, and YUTAKA RYU. "Exhibiting the Yellow-footed rock wallaby Petrogale xanthopus at Kitakyushu Municipal Hibiki Dobutsu World." International Zoo Yearbook 32, no. 1 (January 1992): 212–16. http://dx.doi.org/10.1111/j.1748-1090.1992.tb02503.x.

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9

LAVERY, HUGH, YUITI ONO, and YUTAKA RYU. "Exhibiting the Yellow-footed rock wallaby Petrogale xanthopus at Kitakyushu Municipal Hibiki Dobutsu World." International Zoo Yearbook 32, no. 1 (December 18, 2007): 212–16. http://dx.doi.org/10.1111/j.1748-1090.1993.tb03537.x.

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10

Sharp, Andy, and Hamish McCallum. "Bottom-up processes in a declining yellow-footed rock-wallaby (Petrogale xanthopus celeris) population." Austral Ecology 40, no. 2 (October 8, 2014): 139–50. http://dx.doi.org/10.1111/aec.12185.

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11

Hornsby, P. "Possible Causes of Mortality in The Yellow-Footed Rock-wallaby, Petrogale xanthopus Gray (Marsupialia: Macropodidae)." Australian Mammalogy 19, no. 2 (1996): 245. http://dx.doi.org/10.1071/am97245.

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The causes of mortality were analysed for 23 Yellow-footed Rock-wallabies, Petrogale xanthopus found on or near the dry bed of the Hamilton Creek in the North Flinders Ranges of South Australia. The results showed the Red Fox, Vulpes vulpes to be the more frequently identified predator. On the basis of size, 13 of the wallabies were classed as adult and seven were immature, while the remaining three were unknown. Three were male; seven were female, and 13 were of unknown sex. 15 of the 23 were found during the period April - July; the time of year when there is a peak of young leaving the pouch.
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12

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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13

Eldridge, M. D. B. "Restriction Analysis of Mitochondrial DNA from the Yellow-footed Rock-wallaby, Petrogale xanthopus: Implications for Management." Wildlife Research 24, no. 3 (1997): 289. http://dx.doi.org/10.1071/wr96045.

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The extent of mitochondrial DNA divergence between populations of the vulnerable yellow-footed rock- wallaby, Petrogale xanthopus, was assessed by restriction analysis. Of the 15 restriction endonucleases, five were informative, with a single unique haplotype identified in P. x. celeris from Queensland (Qld) (n = 8) and a further two unique haplotypes in three sampled populations of P. x. xanthopus from New South Wales (NSW) (n = 1) and South Australia (SA) (n = 9). The two subspecies of P. xanthopus were found to be genetically distinct (average sequence divergence = 0·72%). As this divergence is greater than that found between some Petrogale species, it is recommended that populations of P. x. xanthopus and P. x. celeris be managed independently both in captivity and the wild. The NSW population of P. x. xanthopus appears genetically similar to those in SA, although these data are limited.
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14

Taggart, David A., David Schultz, Craig White, Peter Whitehead, Geoff Underwood, and Kevin Phillips. "Cross-fostering, growth and reproductive studies in the brush-tailed rock-wallaby, Petrogale penicillata (Marsupialia:Macropodidae): efforts to accelerate breeding in a threatened marsupial species." Australian Journal of Zoology 53, no. 5 (2005): 313. http://dx.doi.org/10.1071/zo05002.

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Pouch-young removal and cross-fostering trials were undertaken in the brush-tailed rock-wallaby, Petrogale penicillata, to assess whether this procedure could be used to accelerate breeding and recruitment in this threatened marsupial species. Basic reproductive data, lacking at the time of the study, were also collected. Eighteen pouch young, weighing 1–106 g, were fostered to either tammar wallaby, Macropus eugenii, or yellow-footed rock-wallaby, Petrogale xanthopus, surrogate mothers. Sixteen P. penicillata pouch young were transferred to surrogate mothers whose own young were greater or equal in size to the P. penicillata young being transferred. Fourteen of these young survived (88%). Two of the P. penicillata pouch young were transferred to surrogate mothers whose own young was smaller in size than the P. penicillata young being transferred. Neither survived. Growth curves for pouch young on mothers and surrogate mothers were estimated. P. penicillata young reared by surrogate mothers grew at a similar rate, and were weaned at a similar age, to the pouch young of the foster species. Like other rock-wallaby species, P. penicillata underwent embryonic diapause and had a gestation period of ~30 days. Permanent pouch exit occurred at ~200 days and young became sexually mature at ~23 months for males and no later than 21 months for females. This study clearly demonstrates that pouch young of P. penicillata, as small as 1 g (~8 days old), can be removed and cross-fostered successfully. These procedures can be used to accelerate breeding and recruitment by up to six times in this threatened species provided an adequate source of surrogate mothers is available.
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15

Poole, WE, JC Merchant, SM Carpenter, and JH Calaby. "Reproduction, Growth and Age Determinatipon in the Yellow Footed Rock Wallaby Petrogale xanthopus Gray, in Captivity." Wildlife Research 12, no. 2 (1985): 127. http://dx.doi.org/10.1071/wr9850127.

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Yellow-footed rock-wallabies were studied in captivity over 13 years. Individuals of both sexes attained sexual maturity from age 18 months and were capable of breeding throughout the year. The ranges recorded were: for length of oestrous cycle 32-37 days; gestation 31-33 days; pouch life 190-201 days. Parturition was usually followed by an oestrus and mating with a consequent lactation-controlled embryonic quiescence. The mean interval from removal of pouch young to birth was 31.5 days, and to oestrus without an intervening birth, 34 days. Weight of the neonate within the 1st day was <500 mg; the sex ratio of 62 young of known sex revealed a significant departure from parity with 41 boys and 21 girls (100:51). Growth curves were fitted for length of head, ear, arm, leg, foot, tail and weight. These measurements provided a useful means of determining age within the 1st year and to a lesser extent the 2nd year, length of head being the best criterion. Both sexes maintained similar growth rates when within the pouch, but males grew larger once they vacated it. Patterns of molar eruption and molar progression provided a useful means of determining age in older animals but, on the data available, accuracy was restricted to the year and possibly no more than the season of birth.
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16

SHARP, ANDY. "Home range dynamics of the yellow-footed rock-wallaby (Petrogale xanthopus celeris) in central-western Queensland." Austral Ecology 34, no. 1 (February 2009): 55–68. http://dx.doi.org/10.1111/j.1442-9993.2008.01882.x.

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17

Potter, Sally, Linda E. Neaves, Mark Lethbridge, and Mark D. B. Eldridge. "Understanding Historical Demographic Processes to Inform Contemporary Conservation of an Arid Zone Specialist: The Yellow-Footed Rock-Wallaby." Genes 11, no. 2 (January 31, 2020): 154. http://dx.doi.org/10.3390/genes11020154.

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Little genetic research has been undertaken on mammals across the vast expanse of the arid biome in Australia, despite continuing species decline and need for conservation management. Here, we evaluate the contemporary and historical genetic connectivity of the yellow-footed rock-wallaby, Petrogale xanthopus xanthopus, a threatened macropodid which inhabits rocky outcrops across the disconnected mountain range systems of the southern arid biome. We use 17 microsatellite loci together with mitochondrial control region data to determine the genetic diversity of populations and the evolutionary processes shaping contemporary population dynamics on which to base conservation recommendations. Our results indicate the highly fragmented populations have reduced diversity and limited contemporary gene flow, with most populations having been through population bottlenecks. Despite limited contemporary gene flow, the phylogeographic relationships of the mitochondrial control region indicate a lack of structure and suggests greater historical connectivity. This is an emerging outcome for mammals across this arid region. On the basis of our results, we recommend augmentation of populations of P. x. xanthopus, mixing populations from disjunct mountain range systems to reduce the chance of continued diversity loss and inbreeding depression, and therefore maximize the potential for populations to adapt and survive into the future.
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18

Sharp, A., M. Norton, and A. Marks. "Demography of a yellow-footed rock-wallaby Petrogale xanthopus colony in the threatened New South Wales sub-population." Australian Mammalogy 28, no. 2 (2006): 215. http://dx.doi.org/10.1071/am06030.

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The remnant New South Wales (NSW) yellow-footed rock-wallaby (Petrogale xanthopus) population underwent a substantial decline between 1985 and 1992 and remained at dangerously low levels until 1995. To determine the processes underlying this decline, a population study was conducted at one colony, between winter 1995 and winter 1998. The colony was observed to remain relatively constant in size, consisting of between 12 or 13 individuals throughout the study. Reproductive rates were found to be relatively high. Both reproduction and pouch young survival were comparable with those reported for other P. xanthopus colonies, while adult survival rates were higher than those noted in other studies. Because population size remained constant during the study and adult survivorship was consistently high, this suggested that juvenile recruitment into the colony was low. Such low levels of recruitment may have had a substantive role in the slow decline of the entire NSW P. xanthopus population. The results of this study suggest that any management actions undertaken in the NSW P. xanthopus population should focus on increasing juvenile survival rates. Further research is required to determine whether juvenile survival is constrained by predation or competition with other herbivores.
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19

Sharp, Andy, and Hamish McCallum. "The decline of a large yellow-footed rock-wallaby (Petrogale xanthopus) colony following a pulse of resource abundance." Australian Mammalogy 32, no. 2 (2010): 99. http://dx.doi.org/10.1071/am08113.

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The dynamics of a yellow-footed rock-wallaby (Petrogale xanthopus) colony in central-western Queensland were monitored between spring 1991 and winter 1994. The two years immediately before the study witnessed well above average rainfall, while average rainfall was recorded during the period of the study. Both trapping and standardised visual survey data were modelled using the Jolly–Seber–Cormack (JSC) mark–recapture estimator and the Minta–Mangel (MM) mark–resight estimator. The JSC population estimates were considerably lower than those derived from the MM estimator, indicating that the trapping program sampled only a portion of the total population. Nevertheless, a strong degree of correlation existed between both estimators, suggesting that the dynamics of the trappable subpopulation mirrored those of the total population. The colony declined markedly in size throughout the study (103 to 48 individuals, winter 1992 to winter 1994, JSC estimates; 175 to 116 individuals, summer 1993 to winter 1994, MM estimates). No significant correlations (P > 0.05) were found between seasonal and/or biannual exponential rates of population increase (r) and environmental variables. Nevertheless, a strong positive correlation was observed between biannual r and short-term rainfall (r = 0.90) and pasture conditions (r = 0.85–0.93), suggesting that the colony was influenced to some extent by fluctuations in available resources. Annual r was calculated at –0.29 (1992–93) and –0.49 (1993–94). The marked reduction in colony size suggested that it was declining towards its average carrying capacity, following a strong pulse of recruitment linked to the above-average rainfalls of 1990.
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20

POPE, L. C., A. SHARP, and C. MORITZ. "Population structure of the yellow-footed rock-wallaby Petrogale xanthopus (Gray, 1854) inferred from mtDNA sequences and microsatellite loci." Molecular Ecology 5, no. 5 (October 1996): 629–40. http://dx.doi.org/10.1111/j.1365-294x.1996.tb00358.x.

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21

Lethbridge, Mark R., and Peter J. Alexander. "Comparing population growth rates using weighted bootstrapping: Guiding the conservation management of Petrogale xanthopus xanthopus (yellow-footed rock-wallaby)." Biological Conservation 141, no. 5 (May 2008): 1185–95. http://dx.doi.org/10.1016/j.biocon.2007.09.026.

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22

Robinson, AC, L. Lim, PD Cantry, RB Jenkins, and CA MacDonald. "Studies of the yellow-footed rock-wallaby, Petrogale xanthopus Gray (Marsupialia : Macropodidae). Population studies at Middle Gorge, South Australia." Wildlife Research 21, no. 4 (1994): 473. http://dx.doi.org/10.1071/wr9940473.

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A mark-recapture study of Petrogale xanthopus at Middle Gorge in the southern Flinders Ranges revealed that between January 1979 and January 1984 the estimated known-to-be-alive population ranged from 11 to 20. During the main study, individuals living to an estimated age of six years were recorded. Captures of marked animals after completion of the main study revealed both males and females living to at least 10 years old. Births occurred throughout the year but there appeared to be an increase in births following periods of effective rainfall. For the whole study the sex ratio of pouch young did not vary significantly from 1:1. When individuals that gave birth more than once during the study were examined, there was a significant bias towards male young in the later births. It is suggested that this species has a two-phase reproductive strategy with the extra males, produced by older females, sustaining a male-exchange system with nearby colonies.
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23

Sharp, A., K. Holmes, and M. Norton. "An Evaluation of a Long-Term Feral Goat Control Program in Mootwingee National Park and Coturaundee Nature Reserve, Far Western New South Wales." Rangeland Journal 21, no. 1 (1999): 13. http://dx.doi.org/10.1071/rj9990013.

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Between January 1981 and September 1997, goat mustering and aerial culling was conducted on Mootwingee National Park and Coturaundee Nature Reserve, an area with high densities of goats (Southwell et al. 1993). The goat control campaign was initiated as a general management strategy to reduce the negative impacts of goats on native vegetation, aboriginal art sites and the endangered yellowfooted rock-wallaby (Petvogale xanthopus). During this period a total of 42,516 goats were removed (13,089 mustered, 29,427 shot). Between January 1988 and June 1995 it was possible to calculate population indices for goats using aerial culling data; Ln(number of goats shotlminute flying time+l). The study site was sub-divided into northern and southern blocks and population indices calculated for each block. Linear regression equations were fitted to the population indices plotted across time. The data suggest that despite the removal of considerable numbers of goats from both blocks of the study area (1 1,601, northern; 10,035, southern), there was no detectable decrease in goat numbers over the 1988- 1995 period. For both blocks the slope of the regression line was negative and close to zero (-0.005, northern; -0.0003, southern). The results indicate that the impact of mustering and shooting was shortterm and that the re-invasion rate by goats into the area was very high. In areas of high goat density, control measures need to be regular and conducted over a broad geographic area if goat numbers are to be effectively reduced. No detectable increase was noted in the yellow-footed rock-wallaby population during the period of intensive goat control.
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24

McLelland, David J., Kate Fielder, Gayl Males, Nathan Langley, and David Schultz. "Successful transfer of a Goodfellow's tree kangaroo (Dendrolagus goodfellowi) pouch young to a yellow-footed rock wallaby (Petrogale xanthopus) surrogate." Zoo Biology 34, no. 5 (July 17, 2015): 460–62. http://dx.doi.org/10.1002/zoo.21236.

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25

Lim, T. L., and J. R. Giles. "Studies on the yellow-footed rock-wallaby, Petrogale xanthopus Gray (Marsupialia : Macropodidae). 3. Distribution and management in western New South Wales." Wildlife Research 14, no. 2 (1987): 147. http://dx.doi.org/10.1071/wr9870147.

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Contrary to previous literature, P. xanthopus had not been recorded in western New South Wales before its existence was reported by Fox (1966). There is only one geographically isolated population of less than 250 animals in two separate colonies in the Gap and Coturaundee Ranges, where they are confined to two cliff systems and two outcrops. Their distribution is therefore more limited than first reported by Wilson et al. (1976). They were more widespread in the past, being found also in the Barrier and Bynguano Ranges. These conclusions have been reached from data collected from: (1) a large-scale low-level aerial survey and subsequent ground inspections to record this species' presence in specific locations in north-western New South Wales; (2) a systematic detailed survey of the Gap and Coturaundee Ranges to establish its pattern of habitat use from the accumulated density of faecal pellets; (3) low-level aerial surveys over these and other areas, by helicopter, to confirm the results of earlier surveys and check on reported sightings. The results of this study are being used for the management of this rare rock-wallaby in New South Wales. It is recommend that this species be re-established in the Bynguano Range.
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26

O'Callaghan, Michael G., Ian H. Carmichael, John W. Finnie, and Sue Conaghty. "Lesions Associated with Infestation of a Yellow-footed Rock Wallaby (Petrogale xanthopus xanthopus) with Larvae of Odontacarus (Leogonius) adelaideae (Womersley) (Acarina: Trombiculidae) in South Australia." Journal of Wildlife Diseases 30, no. 2 (April 1994): 257–59. http://dx.doi.org/10.7589/0090-3558-30.2.257.

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27

Smith, Deane A., Mark R. Lethbridge, Benjamin L. Allen, and Rose L. Andrew. "Inferring inter-colony movement within metapopulations of yellow-footed rock-wallabies using estimates of kinship." Conservation Genetics, January 27, 2023. http://dx.doi.org/10.1007/s10592-022-01498-8.

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AbstractUnderstanding the exchange of individuals between wildlife populations, particularly those with naturally fragmented habitats, is important for the effective management of these species. This is of particular consequence when the species is of conservation concern, and isolated populations may be lost due to pressures from predation or competition, or catastrophic events such as wildfire. Here we demonstrate the use kinship and population structure analysis to show potential recent movement between colonies in metapopulations of yellow-footed rock-wallaby (Petrogale xanthopus Gray 1854) at two sites in the Grey Range of Queensland, and at four sites in the Gawler Ranges of South Australia. These colonies are also compared to a single colony from the Flinders Ranges, a connected landscape of rock-wallaby habitat. Using reduced representation next-generation sequencing, we acquired and filtered a set of ~ 17,000 single-nucleotide polymorphisms to examine population genetic variation, structure and relationships within populations, and also identify putative migrants. Initial STRUCTURE analysis re-confirmed each population should be considered separately. Tests of population genetic variation identify several colonies appearing to be experiencing genetic erosion, also with low calculated effective population sizes (Ne = 4.5–36.6). Pairwise comparisons of individual relatedness (relatedness coeffiecients; r) implied several contemporary movement events between colonies within both the Gawler and Grey Ranges (r > 0.125), which was then affirmed with tests for putative first generation migrants. These results are of particular note in South Australia, where threat abatement (management of key predators and competitors) may facilitate dispersion. Additionally, in Queensland, colonies are separated by anthropogenic barriers: predator exclusion fencing designed to exclude dingoes (Canis familiaris) from grazing land, which may hinder dispersal. This work highlights the usefulness of population genetics to inform management outcomes in wildlife, in this case, highlighting the need for threatened species management at the landscape level.
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