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We review the distribution and conservation status of Old World fruit bats (Pteropodidae) in tropical and subtropical China. Our results are based on a series of surveys conducted between 1999 and 2008 by Chinese researchers and international collaborators, spanning almost the entire range of pteropodids within China over nine provinces. Additionally we provide new information on morphometrics and notes on ecology. We also review earlier Chinese literature on fruit bats because much of this has previously been inaccessible to western scientists, and we evaluate the reliability of some of these older records. Thirteen species of fruit bats have been reputed to occur in China, including one species restricted to Taiwan. We classified Chinese fruit bats according to distribution and status as follows: Resident (six species, including one species formerly found in Taiwan and now restricted to its neighbouring islands), Marginal (three species), Questionable (one species) and Alien (three species). Consequently, only five species are encountered with any regularity in mainland China and Hainan Island: Cynopterus sphinx, Eonycteris spelaea, Macroglossus sobrinus, Rousettus leschenaultii, and Sphaerias blanfordi. Three species in the genus Pteropus are referred to in old records, but these bats are clearly not native to mainland China.
The fruit bats Pteropus livingstonii and Pteropus seychellensis comorensis coexist on two of the Comoro Islands, in the Western Indian Ocean. Pteropus livingstonii is more diurnally active than P. s. comorensis. Differences exist in the feeding strategies exhibited by both species when feeding together on kapok (Ceiba pentandra), with P. livingstonii dominant in aggressive interactions with P. s. comorensis. Preliminary investigations suggest that, although there may be some overlap in feeding ecology, with both species feeding on native forest plants, there may be little evidence of overlap in the native fruits eaten. These differences complement known differences in the roosting ecology, flight behaviour, morphology and timing of reproduction of the two sympatric Pteropus species, and suggest that P. s. comorensis does not act as a major limiting factor on P. livingstonii. The implications for the conservation of the Critically Endangered P. livingstonii are discussed.
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