High-resolution GPS tracking reveals habitat selection and the potential for long-distance seed dispersal by Madagascan flying foxes Pteropus rufus

摘要: Long-distance seed dispersal can be important for the regeneration of forested habitats, especially in regions where deforestation has been severe. Old World fruit bats (Pteropodidae) have considerable potential long-distance dispersal. We studied movement patterns and feeding behaviour endemic Madagascan flying fox Pteropus rufus, Berenty Reserve, southeast Madagascar. Between July September 2012 (the dry season) nine males six females were tagged with customised GPS loggers which recorded fixes every 2.5 min between 18.00 06.00 h. The combined home range all during 86 nights exceeded 58,000 ha. Females had larger ranges core foraging areas foraged over longer distances (average 28.1 km; median 26.7 km) than 15.4 9.5 km). Because study was conducted gestation period, increased energy requirements may explain their greater mean area. Compositional analysis revealed that show strong preferences overgrown sisal (Agave sisalana) plantations (a mix shrub, trees plants) remnant riverside forest patches. Sisal nectar pollen abundant food sources tracking period this probably contributed to selective use plantations. also ate large quantities figs (Ficus grevei) study, dispersed seeds pioneer species. flew at an average speed 9.13 m/s, perhaps optimise gliding performance. confirms P. rufus a disperser, is able fly area, often crossing cleared parts its habitat. It potentially plays role threatened habitats biodiversity hotspot.