Publication: Influence of food availability and distribution on the movement patterns of a forest avian frugivore, the puff-throated bulbul (Alophoixus pallidus)
Issued Date
2012-01-01
Resource Type
ISSN
14697831
02664674
02664674
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2-s2.0-83455176230
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Tropical Ecology. Vol.28, No.1 (2012), 1-9
Suggested Citation
Daphawan Khamcha, Tommaso Savini, Warren Y. Brockleman, Vijak Chimchome, George A. Gale Influence of food availability and distribution on the movement patterns of a forest avian frugivore, the puff-throated bulbul (Alophoixus pallidus). Journal of Tropical Ecology. Vol.28, No.1 (2012), 1-9. doi:10.1017/S026646741100054X Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/13523
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Title
Influence of food availability and distribution on the movement patterns of a forest avian frugivore, the puff-throated bulbul (Alophoixus pallidus)
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Abstract
Bulbul species (family Pycnonotidae) are important seed dispersers in Asian forests, but almost nothing is known of their movement patterns inside intact forest, which are likely to impact forest dynamics. We examined the movement patterns of the forest-dwelling puff-throated bulbul (Alophoixus pallidus) in relation to fruit productivity and distribution of fruiting trees/lianas in an evergreen forest in north-eastern Thailand. Movement patterns of 10 groups were precisely mapped by following colour-ringed individuals in each group 4 h mo -1 for 1 y. We evaluated fruit productivity and dispersion of fruiting trees/lianas based on monthly phenologies. There were clear seasonal fluctuations in fruit availability, which appeared to affect movement patterns, particularly distance moved between fruiting trees, time spent feeding and food selection. When fruit availability was low, bulbuls spent more time on average at a given food plant and moved longer distances between fruiting plants than compared with periods of higher fruit availability (low availability: 58 s, 83.2 m; high availability: 10 s, 43.4 m). This study points to the importance of seasonal availability of fruit resources on frugivore movement patterns. Seasonal dynamics of movement may be useful for understanding interactions between fruiting trees and their dispersers, and forest tree recruitment patterns. © Copyright Cambridge University Press 2011.