Translator Disclaimer
1 June 2014 Foraging Movements of Epauletted Fruit Bats (Pteropodidae) in Relation to the Distribution of Sycamore Figs (Moraceae) in Kruger National Park, South Africa
Author Affiliations +
Abstract
We examined the distribution of Ficus sycomorus in relation to the movements and feeding, behavior of two species of epauletted fruit bats in Kruger National Park in order to learn about the scale and tempo of the seed dispersal of this riparian tree. Radio-tagged Epomophorus crypturus and Epomophorus wahlbergi restricted > 90% of activity within riparian forests having F. sycomorus present; whereas, < 10% of activity occurred in thorn thickets where folivory on Balanites maughamii and frugivory on Sclerocarya birrea appeared to offer secondary sources of forage. Bats usually carried figs to foliage perches within 200 m of the fruiting tree before feeding. Within a night, maximum one-way movement was 13.9 km as bats visited ≤ four foraging patches. No significant difference occurred between foraging ranges of E. wahlbergi at Skukuza (16.0 ± 3.0 ha) and E. crypturus at Shingwedzi (19.9 ± 5.1 ha). However, E. crypturus at Babalala had significantly larger mean foraging range (52.4 ha ± 4.5 ha) than either species elsewhere. Mean foraging range, core use area, and long axis across foraging range of E. wahlbergi changed significantly with season, year, and fig abundance. Our study suggests interdependence between F. sycomorus and the two species of fruit bats in Kruger National Park with bat movements largely following the distribution of available ripe figs.
© Museum and Institute of Zoology PAS
Frank J. Bonaccorso, John R. Winkelmann, Christopher M. Todd and Adam C. Miles "Foraging Movements of Epauletted Fruit Bats (Pteropodidae) in Relation to the Distribution of Sycamore Figs (Moraceae) in Kruger National Park, South Africa," Acta Chiropterologica 16(1), (1 June 2014). https://doi.org/10.3161/150811014X683255
Received: 1 June 2013; Accepted: 1 April 2014; Published: 1 June 2014
JOURNAL ARTICLE
12 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top