Arnhem Leaf-nosed Bat
Hipposideros inornatus
Australia's Threatened Species Category
Endangered
Listed since: 3/12/2015
IUCN's Threatened Species Category
Vulnerable
Listed since: 9/07/2019
Population trend: Decreasing
Other names: None
Priority Species? No
The Australian government's Threatened Species Action Plan 2022-2032 selected over 100 priority species derive from consultation with threatened species experts and the wider community. While all species are important, focusing on a limited number of species can help target effort and resources so that outcomes can be achieved, measured and shared.
Description
The Arnhem Leaf-nosed Bat has one of the most limited distributions of any Australian bat taxon and is known to occur only in the Kakadu escarpment and adjoining western edge of the Arnhem Land plateau. The Arnhem leaf-nosed bat roosts in cool, draughty areas in caves in rugged sandstone formations during the day, particularly where these are close to water. At night it forages in a range of vegetation types, including monsoon rainforests, riparian vegetation and eucalypt woodlands. The diet of related species mostly comprises large insects, including beetles, moths, cockroaches and locusts.
Threats
The main threat to the Arnhem Leaf-nosed Bat is disturbance or destruction of roost sites and changes in seasons from climate change could be influential on their diet.
Quollity Conservation Hub's Vulnerability Score:
25
To help compare the relative vulnerability of different species, we have developed a scoring system based on biological and ecological characteristics that influence a species' ability to survive and recover from environmental change and natural disasters.
The framework is adapted from assessment methods used by conservation experts following the Black Summer bushfires to help identify species most in need of conservation action, research, and recovery funding.
Each species is assessed using a range of factors, including its conservation status, lifespan, reproductive rate, habitat and dietary requirements, ability to disperse or recover after fire, and the number and severity of threats it faces.
In general, the higher a species' score, the greater its overall vulnerability and risk of decline or extinction.
Like all conservation assessments, this scoring system is limited by the information currently available. Many threatened species remain poorly studied and receive limited research funding, meaning some assessments rely on the best available scientific knowledge or information from closely related species. As new research becomes available, scores may be updated to reflect our improved understanding.