Dispersal patterns in a regional koala population in south-east Queensland

  title={Dispersal patterns in a regional koala population in south-east Queensland},
  author={D. Dique and J. Thompson and H. Preece and D. Villiers and F. Carrick},
  journal={Wildlife Research},
Koala dispersal was investigated as part of a detailed ecological study of a nationally significant koala population located 20 km south-east of Brisbane, Queensland. From 1996 to 2000, 195 koalas from three sites were captured and fitted with radio-collars. A total of 40 koalas (23 males and 17 females) dispersed from these sites. Most (93%) dispersing individuals were 20–36 months of age. Three adult females (more than 36 months old) dispersed and no adult males dispersed during the study. A… Expand
Movement patterns of koalas in remnant forest after fire
It is shown that resource depletion from wildfire is short term for koalas because their mobility allows rapid recolonisation of the burnt forest, and they can maintain home ranges within sites regenerating from fire. Expand
Population genetics of the koala (Phascolarctos cinereus) in north-eastern New South Wales and south-eastern Queensland
It is suggested that koala populations in north-eastern New South Wales and south-e eastern Queensland are experiencing contemporary impediments to gene flow, and the importance of maintaining habitat connectivity across this region is highlighted. Expand
The development of habitat selection by subadult koalas
Compared the tree use and diet of adult female koalas with that of their offspring on St Bees Island, Queensland, using radio-tracking and faecal cuticle analysis, indicates that if tree utilisation for resting is learned from the mother, young animals are excluded from preferred trees while dispersing. Expand
Ecology and movement of urban koalas adjacent to linear infrastructure in coastal south-east Queensland
The results suggest that koalas are able to navigate linear infrastructure; however, the high rates of mortality associated with these movements puts the long-term viability of urban koala populations in doubt. Expand
Movement patterns of an arboreal marsupial at the edge of its range: a case study of the koala
The difference in home range movement patterns and resource use among the different koala populations shows that behavior changes with proximity to the arid edge of the koala’s range, highlighting the importance of further range-edge studies for informing effective koala conservation and management actions. Expand
Conserving South-East Queensland Koalas: How much habitat is enough?
The overall Koala Phascolarctos cinereus population in Southeast Queensland is declining due to historical clearing of forests for agriculture and more recently for rapid urban development. WeExpand
Integrating measures of long-distance dispersal into vertebrate conservation planning: scaling relationships and parentage-based dispersal analysis in the koala
Levels and patterns of long-distance dispersal in the koala were investigated using a combination of microsatellite-based population genetic analyses, scaling relationships and parentage-based dispersal analysis, and common movement patterns were discerned that suggest an important role in maintaining metapopulation connectivity. Expand
Koala birth seasonality and sex ratios across multiple sites in Queensland, Australia
Abstract Establishing accurate demographic information for free-ranging populations of animals is difficult without knowledge of individual chronological age. We estimated the birth dates of 743Expand
Koala birth seasonality and sex ratios across multiple sites in Queensland, Australia
It is concluded that koalas can bear offspring in every month of the year, but breed seasonally across Australia, and that a sex bias in the timing of births is absent from most regions. Expand
Fine-scale changes in spatial habitat use by a low-density koala population in an isolated periurban forest remnant
Stable low-density koala populations are important for maintaining genetic diversity and connectivity in fragmented urban landscapes and examination of activity at the mesoscale indicates that the koala population exists at a low density. Expand