Pteropus mahaganus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Chiroptera Pteropodidae

Scientific Name: Pteropus mahaganus
Species Authority: Sanborn, 1931
Common Name(s):
English Sanborn's Flying Fox, Lesser Flying-fox, Lesser Flying Fox
Spanish Zorro Volador De Bougainville

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Leary, T., Hamilton, S., Bonaccorso, F. & Helgen, K.
Reviewer(s): Lamoreux, J. (Global Mammal Assessment Team), Racey, P.A., Medellín, R. & Hutson, A.M. (Chiroptera Red List Authority)
Listed as Vulnerable because its extent of occurrence is less than 20,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its forest habitat. There should be further research on the impact of habitat degradation on its population size.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This little-known species has been recorded from the islands of Santa Isabel and Tanabuli in the Solomon Islands and Bougainville and Buka in Papua New Guinea (Flannery 1995; Bonaccorso 1998). Extensive searches have not recorded populations of this species on other islands in the Solomons group (Flannery 1995). It has been recorded from sea level to 200 m asl. The combined area of the four islands is 12,200 km2.
Countries occurrence:
Papua New Guinea; Solomon Islands
Additional data:
Upper elevation limit (metres):200
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Flannery (1995) reported that it was common on Santa Isabel. It is also common on Bougainville and Buka (S. Hamilton pers. comm.). The species has a fairly uniform distribution within appropriate habitat, but not at high density.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:This species is found in coastal lowlands in coconut plantations and lowland tropical forest. Animals have been recorded feeding on young coconuts at night. It is not a colony rooster; it roosts individually and in small groups in foliage and small tree hollows.

Threats [top]

Major Threat(s): There has been widespread habitat alteration due to conversion of mature forest for agriculture (subsistence and commercial coconut plantations) and this continues. Santa Isabel has been logged. The ability of this species to persist in degraded areas is unknown. The species also is hunted opportunistically for food, but it is unknown whether this poses a major threat to the species. Stochastic events might also threaten the species.

Conservation Actions [top]

Conservation Actions: This species is listed on Appendix II of CITES. It is probably not found within any protected areas. There should be further research on the impact of habitat degradation on its population size. Population estimates and modelling utilisation data on analog species may be appropriate.

Citation: Leary, T., Hamilton, S., Bonaccorso, F. & Helgen, K. 2008. Pteropus mahaganus. The IUCN Red List of Threatened Species 2008: e.T18736A8514807. . Downloaded on 20 July 2017.
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