Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia

Over the last several decades, a large tract of forests in the tropics had been converted into oil palm cultivations (either plantations or smallholdings). The expansion of such cultivation is recognized as one of the major causes of a rapid decline in fauna biodiversity in the tropics. In contrast...

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Main Author:	Yahya, Muhammad Syafiq
Format:	Thesis
Language:	English
Published:	2017
Subjects:	Nocturnal animals - Malaysia - Selangor Nocturnal animals Oil palm
Online Access:	http://psasir.upm.edu.my/id/eprint/70909/1/FH%202017%2012%20IR.pdf
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id	my-upm-ir.70909
record_format	uketd_dc
spelling	my-upm-ir.709092019-08-29T07:19:34Z Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia 2017-03 Yahya, Muhammad Syafiq Over the last several decades, a large tract of forests in the tropics had been converted into oil palm cultivations (either plantations or smallholdings). The expansion of such cultivation is recognized as one of the major causes of a rapid decline in fauna biodiversity in the tropics. In contrast to large-scale plantations, oil palm smallholdings may support greater levels of biodiversity through the implementation of intercropping practices. To date, the assemblages of nocturnal birds and their response toward environmental factors in oil palm smallholdings still remain unclear. Hence, this study estimated the density of nocturnal bird species as well as examined the effects of local-level and landscape-level variables on the composition of nocturnal bird species in oil palm smallholdings in Peninsular Malaysia. A total of 1,408 individuals of 11 nocturnal bird species (i.e. nine owl and two nightjar species) were recorded from 90 sampling points spaced more than 800 m apart. The density of Spotted Wood Owl (Strix seloputo) was seven individuals per 100 ha, followed by Sunda Scops Owl (Otus lempiji) with 15 individuals for every 100 ha, Common Barn Owl (Tyto alba) with five individuals per 100 ha and Large-tailed Nightjar (Caprimulgus macrurus) with seven to eight individuals for every 10 ha. Biota and/or Environment Matching Analyses (BEST) indicated four predictor variables, i.e. three local variables (crop richness, widths of roads and trenches) and one landscape variables (distance to the nearest road) significantly influenced the community assemblages of nocturnal bird species in the smallholdings. Generalized Linear Models (GLMs) indicated seven predictor variables (i.e. four local variables; height of oil palms, number of oil palms, width of the roads and trenches, and three landscape variables; number of settlements per 100 meter radius, distance to the nearest forest and settlement) significantly influenced the abundances of certain nocturnal species. this study demonstrated that the composition and abundance of nocturnal birds in oil palm smallholdings were influenced by both local and landscape-level variables. This not only improved our understanding on habitat preference of the little known nocturnal birds in Malaysia but also supports that habitat complexity in cultivated areas may aid in biodiversity conservation, at least for nocturnal birds. Nocturnal animals - Malaysia - Selangor Nocturnal animals Oil palm 2017-03 Thesis http://psasir.upm.edu.my/id/eprint/70909/ http://psasir.upm.edu.my/id/eprint/70909/1/FH%202017%2012%20IR.pdf text en public masters Universiti Putra Malaysia Nocturnal animals - Malaysia - Selangor Nocturnal animals Oil palm
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Nocturnal animals - Malaysia - Selangor Nocturnal animals Oil palm
spellingShingle	Nocturnal animals - Malaysia - Selangor Nocturnal animals Oil palm Yahya, Muhammad Syafiq Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia
description	Over the last several decades, a large tract of forests in the tropics had been converted into oil palm cultivations (either plantations or smallholdings). The expansion of such cultivation is recognized as one of the major causes of a rapid decline in fauna biodiversity in the tropics. In contrast to large-scale plantations, oil palm smallholdings may support greater levels of biodiversity through the implementation of intercropping practices. To date, the assemblages of nocturnal birds and their response toward environmental factors in oil palm smallholdings still remain unclear. Hence, this study estimated the density of nocturnal bird species as well as examined the effects of local-level and landscape-level variables on the composition of nocturnal bird species in oil palm smallholdings in Peninsular Malaysia. A total of 1,408 individuals of 11 nocturnal bird species (i.e. nine owl and two nightjar species) were recorded from 90 sampling points spaced more than 800 m apart. The density of Spotted Wood Owl (Strix seloputo) was seven individuals per 100 ha, followed by Sunda Scops Owl (Otus lempiji) with 15 individuals for every 100 ha, Common Barn Owl (Tyto alba) with five individuals per 100 ha and Large-tailed Nightjar (Caprimulgus macrurus) with seven to eight individuals for every 10 ha. Biota and/or Environment Matching Analyses (BEST) indicated four predictor variables, i.e. three local variables (crop richness, widths of roads and trenches) and one landscape variables (distance to the nearest road) significantly influenced the community assemblages of nocturnal bird species in the smallholdings. Generalized Linear Models (GLMs) indicated seven predictor variables (i.e. four local variables; height of oil palms, number of oil palms, width of the roads and trenches, and three landscape variables; number of settlements per 100 meter radius, distance to the nearest forest and settlement) significantly influenced the abundances of certain nocturnal species. this study demonstrated that the composition and abundance of nocturnal birds in oil palm smallholdings were influenced by both local and landscape-level variables. This not only improved our understanding on habitat preference of the little known nocturnal birds in Malaysia but also supports that habitat complexity in cultivated areas may aid in biodiversity conservation, at least for nocturnal birds.
format	Thesis
qualification_level	Master's degree
author	Yahya, Muhammad Syafiq
author_facet	Yahya, Muhammad Syafiq
author_sort	Yahya, Muhammad Syafiq
title	Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia
title_short	Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia
title_full	Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia
title_fullStr	Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia
title_full_unstemmed	Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia
title_sort	assemblages of nocturnal birds in oil palm smallholdings in selangor, malaysia
granting_institution	Universiti Putra Malaysia
publishDate	2017
url	http://psasir.upm.edu.my/id/eprint/70909/1/FH%202017%2012%20IR.pdf
_version_	1747812934179880960

Assemblages of nocturnal birds in oil palm smallholdings in Selangor, Malaysia

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