Dobsonia minor

Movements, Home range and Social organization. Lesser Naked-backed Fruit Bats roost alone. Individual bats used 1 - 3 roost trees / month during a radio-tracking study, none of which were more than 300 m apart. Males and females occupied home ranges of 1 - 4 - 9 - 4 ha (mean 5 - 1 ha, no significant difference by sex) when tracked up to a month. Maximum movements observed across home ranges was 1150 m. Individuals that were radio-tracked two or more times for up to 19 months during different seasons expanded or contracted foraging movements in response to spatialtemporal distribution of fruiting fig trees; however, these individuals continued to feed in core areas that included P. aduncum concentrations over their long seasonal fruiting periods. Physiological responses to environmental temperatures likely to be encountered in its foliage roosts include regulation of constant body temperature at a mean of 36 - 5 ° C, BMR near mammalian mass-specific standard (101 % ofexpected), and minimal thermal conductance (103 % of expected from body weight for a resting mammal) also near the mammalian standard. Maintenance of high body temperature should be important to foliage roosting Lesser Naked-backed Fruit Bats to allow instantaneous flight in response to many potential predators, notably a large number of arboreal pythons, tree boas, and brown tree snakes.

Sumber: Pteropodidae