Assessment on the parental care strategy of the yellow-vented bulbul Pycnonotus goiavier in Perak, Malaysia

Dzulhelmi, M. N. and Suriyanti, S. and Nursyereen, M. N. and Sugumaran, M. (2022) Assessment on the parental care strategy of the yellow-vented bulbul Pycnonotus goiavier in Perak, Malaysia. Journal of Animal and Plant Sciences, 32 (6). pp. 1784-1790. ISSN 1018-7081, DOI https://doi.org/10.36899/JAPS.2022.6.0587.

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Abstract

The parental care strategy and diet requirements of the yellow-vented bulbul Pycnonotus goiavier chicks were studied. The assessment was conducted based on the (1) number of feeding bouts (bouts/hour), (2) average time intervals between each feeding ( minutes/bouts) (3) feeding strategies (perch-go-in or direct-go-in) and (4) types of food items carried to the nest to feed the chicks. A total of 6000 minutes of direct observation from a close distance was performed for 10 days from 28th May 2016 until 6th June 2016 between 0700-1900 hours. Out of 816 independent feeding bouts, the parents preferred the perch-go-in ( 80.03%) as compared to the direct-go-in (19.97%) feeding strategy to feed the chicks in their nest. The average time spent for feeding was 7.50 +/- 3.84 minutes / bout (7.50 +/- 1.23 bouts/h), with the least number of bouts during the morning feeding time at 5.68 +/- 3.09 bouts/h. The most frequent food items comprised of invertebrates such as dragonflies (16.15%) and grasshoppers (11.35%) and fruits including Murraya koenigii ( 14.02%). The success of raising both the chicks depended on the nest placement, feeding strategy, food availability, predation risk and commitment of both parents.

Item Type: Article
Funders: None
Uncontrolled Keywords: Life history; Feeding bout; Food types; Chicks; Activity pattern
Subjects: Q Science > QH Natural history > QH301 Biology
S Agriculture > S Agriculture (General)
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 Nov 2023 08:41
Last Modified: 20 Nov 2023 08:41
URI: http://eprints.um.edu.my/id/eprint/40280

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