Life Expectancy, Causes of Death and Movements of the Grey-Headed Flying-Fox (Pteropus poliocephalus) Inferred from Banding

  title={Life Expectancy, Causes of Death and Movements of the Grey-Headed Flying-Fox (Pteropus poliocephalus) Inferred from Banding},
  author={Christopher R. Tidemann and John E. Nelson},
This study was designed to generate information on demography and movements in large flying-foxes, information that is critical to management planning. Between 1989 and 2002, 2,244 wild grey-headed flying-foxes, Pteropus poliocephalus, were harp-trapped, banded and released at sites across south-eastern Australia; 918 hand-reared orphans were also banded and released at four sites. Retraps of wild animals were few (n = 10) and are not discussed here. Recoveries (n = 86) from the public… 

Using wildlife carer records to identify patterns in flying-fox rescues: a case study in New South Wales, Australia

Injured flying-foxes (Pteropus spp.) are frequently taken into care in eastern Australia. In particular, the grey-headed flying-fox (P. poliocephalus), a vulnerable species, is affected by several

Monitoring hunted species of cultural significance: Estimates of trends, population sizes and harvesting rates of flying-fox (Pteropus sp.) in New Caledonia

Such a level of harvesting for species with a ‘slow’ demography, the occurrence of poaching and illegal trade, suggest the current species use might not be sustainable and further investigations are critically needed.

Estimating flying-fox mortality associated with abandonments of pups and extreme heat events during the austral summer of 2019–20

Mass mortalities in flying-foxes occur in summers that reach extremely hot temperatures. In this study, we examine the spatiotemporal distributions of mortality from pup abandonments and extreme heat

Human-modified landscapes provide key foraging areas for a threatened flying mammal: The grey-headed flying-fox

This work examines positional data from 98 satellite-tracked P. poliocephalus for up to 5 years in urban and non-urban environments, in relation to vegetation data and published indices of foraging habitat quality to highlight the importance of human-modified foraging habitats throughout the species’ range.

Genetic Differentiation and Demographic Trajectory of the Insular Formosan and Orii’s Flying Foxes

The results suggest separate conservation management for the 2 populations of the Formosan flying fox and Orii’s flying fox—population recovery is urgently needed for P. d.

Urban Sprawl, Food Subsidies and Power Lines: An Ecological Trap for Large Frugivorous Bats in Sri Lanka?

Electrocution is one of the less known anthropogenic impacts likely affecting the bat population. We surveyed 925 km of overhead distribution power lines that supply energy to spreading urbanized

Retrofitting of power lines effectively reduces mortality by electrocution in large birds: an example with the endangered Bonelli's eagle

It is demonstrated that insulation of power lines is relevant for the conservation of large bird species at a population scale as it allows the survival rate of all age classes to increase and thus in turn has a strong positive impact on population growth rates.

The effect of seasonal birth pulses on pathogen persistence in wild mammal populations

Stochastic epidemiological models are used to ask how host life-history traits and infection parameters interact to determine pathogen persistence within a closed population and predicted that the critical community size (CCS) can vary by more than two orders of magnitude.

Quantifying the impact of severe bushfires on biodiversity to inform conservation

The unusually severe 2019-2020 Australian bushfire season destroyed large areas of habitat along the southeastern coast. We assess the differences between this fire season and previous ones to



Long-distance movements of the grey-headed flying fox (Pteropus poliocephalus)

The study suggests that P. poliocephalus is a partial migrant that uses winds to facilitate long-distance movements, and underlines the importance of management at a national scale.

Seasonal movements of grey-headed flying-foxes, Pteropus poliocephalus (Chiroptera : pteropodidae), from two maternity camps in Northern New South Wales

  • P. Eby
  • Environmental Science
  • 1991
Seasonal movements of 22 Pteropus poliocephalus, from two maternity camps in north-eastern New South Wales, were monitored from January to June 1989 using radiotelemetry. The animals moved

Age Determination in the Grey-Headed Flying Fox

Historically the grey-headed flying fox (Pteropus poliocephalus), the only endemic flying fox in Australia, had a wide distributional range with numbers estimated in the millions (Ratcliffe 1932).

The reproductive biology and intrinsic capacity for increase of the Gre-headed Flying-fox Pteropus poliocephalus (megachiroptera), and the implications of culling

It is shown that the major factor which determines the rate at which flying-fox populations increase or decline is mortality, and that an additional annual mortality of 10%, “imposed” upon the animals’ “natural” mortality, could lead the entire Grey-headed Flying-fox population into decline.

Biology and management of the Grey-headed Flying-fox, Pteropus poliocephalus

Collaborative management by major stakeholders (= cost-bearers) would facilitate both the development of cost-effective and benign methods for excluding flocks from inappropriate areas, and monitoring of population status.

Mobility of Australian flying-foxes, Pteropus spp. (Megachiroptera): evidence from genetic variation

  • N. WebbC. Tidemann
  • Environmental Science, Biology
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1996
These flying-foxes are essentially panmictic and for management purposes should be treated as migratory species, closer to those found for birds than the typically higher values for mammals.

Demographic indications of decline in the spectacled flying fox (Pteropus conspicillatus) on the Atherton Tablelands of northern Queensland

It is suggested that spectacled flying fox populations are sensitive to increased mortality and that reducing mortality rates should be the primary goal in conservation planning for P. conspicillatus.

The Implications of Sympatry in the Spectacled and Grey Headed Flying-Fox, Pteropus conspicillatus and P. poliocephalus (Chiroptera: Pteropodidae)

The first flying-fox camp (day roost) with all four species of Australian mainland Pteropus co-occurring is reported on, finding that this location is climatically suitable to some degree for both P. conspicillatus and P. poliocephalus but that the latter had a higher climatic suitability at this site.

The black flying-fox (Pteropus alecto) in north Australia: juvenile mortality and longevity

The mortality rates and lifespan of P. alecto are not unusual amongst Chiroptera or small mammals in general and the mean lifespan of females reaching adulthood would need to be seven years for a stable population size to be maintained, but may be shorter given that the mortality rates may have been over-estimated.

Foraging behaviour of the black flying-fox (Pteropus alecto) in the urban landscape of Brisbane, Queensland

Data from flying-foxes tracked from dusk to dawn showed that bats travelled directly to a foraging site early in the night and undertook smaller movements between foraging sites for the remainder of the night.