Roost site selection and the waking and roosting behaviour of mynas Acridotheres in relation to light intensity Singapore

Nee K., . and Yeo V.Y.Y., . Roost site selection and the waking and roosting behaviour of mynas Acridotheres in relation to light intensity Singapore. pp. 255-263. ISSN 0025-1291

In a suburdan habitat both Common Mynas Acridotheres tristis and Whitevented Mynas A. javanicus appear to select roost trees which are characterised by dense foliage possibly for protection against rain wind or radiative heat loss. The waking and roosting patterns of both species of myna were similar. The times of first departure of birds and times of arrival of half the number of birds in the root were significantly correlated with morning civil twilight and evening sunset times respectively. Birds wake and depart at lower light intensities than those at which they return to the roost. Roost departures occur within a narrower range of light intensities than roost arrivals and roost break-ups occur more quickly than roost assembly

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Abstract

In a suburdan habitat both Common Mynas Acridotheres tristis and Whitevented Mynas A. javanicus appear to select roost trees which are characterised by dense foliage possibly for protection against rain wind or radiative heat loss. The waking and roosting patterns of both species of myna were similar. The times of first departure of birds and times of arrival of half the number of birds in the root were significantly correlated with morning civil twilight and evening sunset times respectively. Birds wake and depart at lower light intensities than those at which they return to the roost. Roost departures occur within a narrower range of light intensities than roost arrivals and roost break-ups occur more quickly than roost assembly

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Item Type:	Article
Additional Information:	Summary (En)
AGROVOC Term:	PAJAROS
AGROVOC Term:	ENCUESTAS
AGROVOC Term:	COMPORTAMIENTO
AGROVOC Term:	SINGAPUR
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:56
URI:	http://webagris.upm.edu.my/id/eprint/20707

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