Niche shift in three foraging insectivorous birds in lowland Malaysian forest patches

Mohammad Saiful Mansor, Shukor Md. Nor, Rosli Ramli, Shahrul Anuar Mohd Sah

Research output: Contribution to journalArticle

Abstract

With the rapid growth of agricultural areas globally, forest birds increasingly encounter fragmented landscapes in which forest patches are surrounded by an agricultural plantation matrix, yet how birds respond behaviourally to this fragmentation is poorly understood. Information on microhabitat requirements of birds is scarce, but nevertheless essential to predicting adaptation of bird species to the patchy landscapes. We investigated foraging patterns of three tropical insectivorous birds, Green Iora Aegithina viridissima, Pin-striped Tit-Babbler Macronus gularis and Chestnut-winged Babbler Cyanoderma erythropterum, to determine whether they vary in foraging methods in different forest patches. Our study area encompassed old-logged lowland forest; one continuous forest and three forest patches. Observations were performed for 15 days every month for a period of 13 months. Information on foraging height, substrate, attack manoeuvres, and foliage density was collected independently for each foraging bird individual. All three species used different foraging substrates and attack manoeuvres in different habitat types. The Green Iora frequently used lower strata when foraging in forest patches as opposed to continuous forest, while the Pin-striped Tit-Babbler tended to forage in more dense vegetation in patches. Only Chestnut-winged Babbler displayed complete foraging plasticity across all study parameters. Different habitat features (e.g., edges, microclimates) between continuous forest and forest patches significantly influenced the foraging strategies of the study species. These changes in foraging strategies suggest that some Malaysian forest birds (e.g. generalist species) can respond behaviourally to fragmentation and habitat loss. Although continuous forest has critically important characteristics that need to be conserved, remnant forest patches are also important as ecological movement corridors and foraging grounds for birds.

Original languageEnglish
Pages (from-to)73-79
Number of pages7
JournalBehavioural Processes
Volume157
DOIs
Publication statusPublished - 1 Dec 2018

Fingerprint

Birds
lowlands
niches
foraging
birds
Ecosystem
pins
Castanea
Cyanoderma
Forests
Microclimate
lowland forests
habitats
microclimate
habitat destruction
microhabitats
plantations
forage
vegetation

Keywords

  • Adaptive foraging
  • Behaviour
  • Foraging plasticity
  • Habitat fragmentation
  • Tropical forest

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Behavioral Neuroscience

Cite this

Niche shift in three foraging insectivorous birds in lowland Malaysian forest patches. / Mansor, Mohammad Saiful; Md. Nor, Shukor; Ramli, Rosli; Sah, Shahrul Anuar Mohd.

In: Behavioural Processes, Vol. 157, 01.12.2018, p. 73-79.

Research output: Contribution to journalArticle

@article{d68ff80cec79406ca566ae71e0317cd8,
title = "Niche shift in three foraging insectivorous birds in lowland Malaysian forest patches",
abstract = "With the rapid growth of agricultural areas globally, forest birds increasingly encounter fragmented landscapes in which forest patches are surrounded by an agricultural plantation matrix, yet how birds respond behaviourally to this fragmentation is poorly understood. Information on microhabitat requirements of birds is scarce, but nevertheless essential to predicting adaptation of bird species to the patchy landscapes. We investigated foraging patterns of three tropical insectivorous birds, Green Iora Aegithina viridissima, Pin-striped Tit-Babbler Macronus gularis and Chestnut-winged Babbler Cyanoderma erythropterum, to determine whether they vary in foraging methods in different forest patches. Our study area encompassed old-logged lowland forest; one continuous forest and three forest patches. Observations were performed for 15 days every month for a period of 13 months. Information on foraging height, substrate, attack manoeuvres, and foliage density was collected independently for each foraging bird individual. All three species used different foraging substrates and attack manoeuvres in different habitat types. The Green Iora frequently used lower strata when foraging in forest patches as opposed to continuous forest, while the Pin-striped Tit-Babbler tended to forage in more dense vegetation in patches. Only Chestnut-winged Babbler displayed complete foraging plasticity across all study parameters. Different habitat features (e.g., edges, microclimates) between continuous forest and forest patches significantly influenced the foraging strategies of the study species. These changes in foraging strategies suggest that some Malaysian forest birds (e.g. generalist species) can respond behaviourally to fragmentation and habitat loss. Although continuous forest has critically important characteristics that need to be conserved, remnant forest patches are also important as ecological movement corridors and foraging grounds for birds.",
keywords = "Adaptive foraging, Behaviour, Foraging plasticity, Habitat fragmentation, Tropical forest",
author = "Mansor, {Mohammad Saiful} and {Md. Nor}, Shukor and Rosli Ramli and Sah, {Shahrul Anuar Mohd}",
year = "2018",
month = "12",
day = "1",
doi = "10.1016/j.beproc.2018.09.001",
language = "English",
volume = "157",
pages = "73--79",
journal = "Behavioural Processes",
issn = "0376-6357",
publisher = "Elsevier",

}

TY - JOUR

T1 - Niche shift in three foraging insectivorous birds in lowland Malaysian forest patches

AU - Mansor, Mohammad Saiful

AU - Md. Nor, Shukor

AU - Ramli, Rosli

AU - Sah, Shahrul Anuar Mohd

PY - 2018/12/1

Y1 - 2018/12/1

N2 - With the rapid growth of agricultural areas globally, forest birds increasingly encounter fragmented landscapes in which forest patches are surrounded by an agricultural plantation matrix, yet how birds respond behaviourally to this fragmentation is poorly understood. Information on microhabitat requirements of birds is scarce, but nevertheless essential to predicting adaptation of bird species to the patchy landscapes. We investigated foraging patterns of three tropical insectivorous birds, Green Iora Aegithina viridissima, Pin-striped Tit-Babbler Macronus gularis and Chestnut-winged Babbler Cyanoderma erythropterum, to determine whether they vary in foraging methods in different forest patches. Our study area encompassed old-logged lowland forest; one continuous forest and three forest patches. Observations were performed for 15 days every month for a period of 13 months. Information on foraging height, substrate, attack manoeuvres, and foliage density was collected independently for each foraging bird individual. All three species used different foraging substrates and attack manoeuvres in different habitat types. The Green Iora frequently used lower strata when foraging in forest patches as opposed to continuous forest, while the Pin-striped Tit-Babbler tended to forage in more dense vegetation in patches. Only Chestnut-winged Babbler displayed complete foraging plasticity across all study parameters. Different habitat features (e.g., edges, microclimates) between continuous forest and forest patches significantly influenced the foraging strategies of the study species. These changes in foraging strategies suggest that some Malaysian forest birds (e.g. generalist species) can respond behaviourally to fragmentation and habitat loss. Although continuous forest has critically important characteristics that need to be conserved, remnant forest patches are also important as ecological movement corridors and foraging grounds for birds.

AB - With the rapid growth of agricultural areas globally, forest birds increasingly encounter fragmented landscapes in which forest patches are surrounded by an agricultural plantation matrix, yet how birds respond behaviourally to this fragmentation is poorly understood. Information on microhabitat requirements of birds is scarce, but nevertheless essential to predicting adaptation of bird species to the patchy landscapes. We investigated foraging patterns of three tropical insectivorous birds, Green Iora Aegithina viridissima, Pin-striped Tit-Babbler Macronus gularis and Chestnut-winged Babbler Cyanoderma erythropterum, to determine whether they vary in foraging methods in different forest patches. Our study area encompassed old-logged lowland forest; one continuous forest and three forest patches. Observations were performed for 15 days every month for a period of 13 months. Information on foraging height, substrate, attack manoeuvres, and foliage density was collected independently for each foraging bird individual. All three species used different foraging substrates and attack manoeuvres in different habitat types. The Green Iora frequently used lower strata when foraging in forest patches as opposed to continuous forest, while the Pin-striped Tit-Babbler tended to forage in more dense vegetation in patches. Only Chestnut-winged Babbler displayed complete foraging plasticity across all study parameters. Different habitat features (e.g., edges, microclimates) between continuous forest and forest patches significantly influenced the foraging strategies of the study species. These changes in foraging strategies suggest that some Malaysian forest birds (e.g. generalist species) can respond behaviourally to fragmentation and habitat loss. Although continuous forest has critically important characteristics that need to be conserved, remnant forest patches are also important as ecological movement corridors and foraging grounds for birds.

KW - Adaptive foraging

KW - Behaviour

KW - Foraging plasticity

KW - Habitat fragmentation

KW - Tropical forest

UR - http://www.scopus.com/inward/record.url?scp=85053048637&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053048637&partnerID=8YFLogxK

U2 - 10.1016/j.beproc.2018.09.001

DO - 10.1016/j.beproc.2018.09.001

M3 - Article

VL - 157

SP - 73

EP - 79

JO - Behavioural Processes

JF - Behavioural Processes

SN - 0376-6357

ER -