Large-eared Pied Bat

Chalinolobus dwyeri is a small insectivorous bat distinguished by its broad, distinctive ears and the pale-yellow stripe running along each side of its body, a marking characteristic of the genus. Like other members of Vespertilionidae, it forages on the wing at night, taking moths and other flying insects, and in doing so contributes to natural pest suppression within the forest ecosystems it inhabits. It roosts in caves, disused mine adits, overhangs, and crevices in sandstone escarpments, often in small colonies, and relies on such rocky structures for both breeding and shelter.

The species is found only in eastern Australia, ranging across parts of Queensland and New South Wales. It favors subtropical and tropical moist lowland forest, as well as forested habitat associated with sandstone cliffs, gorges, and other rocky terrain, where roost sites and nearby foraging grounds occur in close proximity.

Its population is in decline, driven by a combination of pressures. Expanding housing and urban development fragments forest habitat, while mining and quarrying activity can destroy or disturb the caves and mine tunnels the bats depend on for roosting. Altered fire regimes, including more frequent or intense bushfires and fire suppression practices, degrade forest understorey and insect prey availability.

Conversion of land to annual and perennial cropping further reduces available habitat, and invasive species pose additional risks through competition, predation, or disease transmission.

Conservation efforts include legal protection under Australian state and federal biodiversity legislation, survey and monitoring programs to identify and safeguard roost sites, and habitat protection measures within reserves and protected areas. Restrictions on disturbance to known cave and mine roosts have also been implemented in some regions. Despite these measures, ongoing habitat loss and altered fire patterns continue to pressure the species, and its population trajectory remains one of gradual decline.