Pacific Flying-fox (Pteropus tonganus) lives in tropical rainforest across South Pacific islands. It feeds on nectar and fruit. Its conservation status is Least Concern.
Fascinating facts about the Pacific Flying-fox
- Five bones, representing one adult of the Pacific Flying Fox, Pteropus tonganus, were recovered from an archaeological site on Rurutu (151[degrees] 210 W, 22[degrees] 270'S), Austral Islands, French Polynesia, making this the most eastern extension of the species. For the first time, flying fox bones from cultural deposits were directly dated by accelerator mass spectrometry, yielding an age of death between A.D. 1064 and 1155. Their stratigraphic position in an Archaic period archaeological site and the absence of bones in the late prehistoric to historic layers point to extirpation of the species. No flying fox bones were found in prehuman deposits and human transport of the species cannot be ruled out. This ancient record shows the bat once reached far-eastern islands, then vanished.
- The insular flying fox averages 231 mm in total length and weighs about 565 g, with forearms spanning 120-160 mm and ears never longer than 31 mm. Captive individuals have lived up to 31 years, hinting at a long potential lifespan in the wild. These dimensions make the bat capable of carrying sizeable fruit pieces away from the tree to eat, a key behavior for seed spread across islands.
- Pteropus tonganus is a keystone pollinator and seed disperser; about 30 percent of plant species on Samoa rely completely on flying foxes for pollination or seed spread. By ferrying pollen of Ceiba pentandra and countless other trees, the bat sustains forest regeneration after storms and maintains genetic flow between islands. Without these nightly foragers, many dominant trees would fail to reproduce.
- Faecal matter from four roosting sites of insular flying foxes in Tonga was sampled for viruses during 2014-2015. Analysis of the recovered DNA sequences revealed 48 single-stranded DNA viruses, including 5 cyclovirus and 14 gemycircularvirus novel species. Three of the viruses were sampled in consecutive years and six were found at multiple sites indicating that they are persistently associated with insular flying fox colonies. This viral richness underscores the species' role as a natural reservoir.
- On Niue, the peka or Pacific flying fox (Pteropus tonganus tonganus) is nocturnal and plays an important role in seed dispersal on the island. The nation protected 40 % of its territorial waters and 23 % of its land before taking steps to protect its skyscape from light pollution, preserving dark nights for these bats. By swapping blue-hued LEDs for orange-tinted ones, Niue reduced artificial glow, helping nocturnal pollinators maintain their foraging rhythms. This partnership shows how simple lighting changes can safeguard night-active wildlife that underpins island forest health.
Sources
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At a glance
RangeSouth Pacific islands
HabitatTropical rainforest
DietNectar and fruit
About the Pacific Flying-fox
As the sun dips into the horizon, a dark silhouette materializes against the vibrant hues of the tropical sky, the Pacific Flying-fox unfurls its majestic wings, beating the air with a slow, deliberate rhythm that belies its incredible agility. With eyes shining like polished onyx, this nocturnal navigator charts a course through the twilight, its leathery wings a blur as it weaves between the towering trees, drawn by the sweet scent of ripening fruit. In this fleeting moment, the Pacific Flying-fox embodies the very essence of its island realm, a creature of mystery and beauty, forever bound to the whims of the wind and the lure of the night.
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