Species composition of Amphibians and Reptiles in Krau Wildlife Reserve, Pahang, Peninsular Malaysia

Zakaria, Nurulhuda; Senawi, Juliana; Musa, Fakhrul Hatta; Belabut, Daicus M.; Onn, Chan Kin; Nor, Shukor Md.; Ahmad, Norhayati

doi:10.15560/10.2.335

Cited by 12 publications

(6 citation statements)

References 16 publications

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“…Light gray denotes the reserve area, dark gray represents the forested areas surrounding the reserve, whereas white indicates non-forested areas. Map adapted from Zakaria et al (2014) .…”

Section: Methodsmentioning

confidence: 99%

High-throughput sequencing reveals dietary segregation in Malaysian babblers

et al. 2021

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The coexistence of numerous species within a community results from how those species use available resources. Babblers are one of the major groups of Malaysian insectivorous birds, which frequently forage in dense vegetation cover and have a high level of sympatry. Therefore, examining the diet, prey selection and niche segregation of babblers can be challenging. In this study, we used high-throughput sequencing to investigate potential dietary overlap or segregation among 10 babbler species of the four genera of the family Pellorneidae and Timaliidae: Pellorneum, Malacopteron, Stachyris and Cyanoderma in central peninsular Malaysia. We tested the hypothesis that trophically similar species may differ in resource use to avoid competitive exclusion. We identified 81 distinct arthropod taxa from fecal samples, belonging to 71 families representing 13 orders, which were predominantly from 16 dipteran, 13 lepidopteran and 10 coleopteran families. Of all the prey taxa consumed, 45% were found to be distinct across the 10 babbler species, and less than 35% were shared simultaneously by three or more babbler species, indicating minimal dietary overlap. The black-throated babbler Stachyris nigricollis and moustached babbler Malacopteron magnirostre had the most generalist tendencies because they consumed a greater variety of prey taxa. Small dietary overlap values (Ojk) and a relatively wide range of food resources suggest that dietary segregation occurred among the studied babblers. The great diversity of prey consumed revealed the presence of dietary flexibility among the sympatric insectivorous birds, thus reducing any active dietary competition and facilitating the coexistence through niche partitioning.

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“…Light gray denotes the reserve area, dark gray represents the forested areas surrounding the reserve, whereas white indicates non-forested areas. Map adapted from Zakaria et al (2014) .…”

Section: Methodsmentioning

confidence: 99%

High-throughput sequencing reveals dietary segregation in Malaysian babblers

et al. 2021

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“…The study was conducted in Bukit Rengit (3°35'40.02"N, 102°10'43.24"E), within the Krau Wildlife Reserve, a protected area located in Pahang, central Peninsular Malaysia ( Fig 1 ; see [ 28 ]). The reserve consists of a large area of old-growth forest [ 29 ] and is the second largest protected area in Peninsular Malaysia after Taman Negara.…”

Section: Methodsmentioning

confidence: 99%

“… The reserve is represented by light grey, forest areas surrounding the reserve are indicated by dark grey, and non-forest areas are shown by white colour. Map adapted from [ 28 ]. …”

Section: Methodsmentioning

confidence: 99%

Foraging niche segregation in Malaysian babblers (Family: Timaliidae)

Mansor

Ramli

2017

PLoS ONE

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Tropical rainforests are considered as hotspots for bird diversity, yet little is known about the system that upholds the coexistence of species. Differences in body size that are associated with foraging strategies and spatial distribution are believed to promote the coexistence of closely related species by reducing competition. However, the fact that many babbler species do not differ significantly in their morphology has challenged this view. We studied the foraging ecology of nine sympatric babbler species (i.e., Pellorneum capistratum, P. bicolor, P. malaccense, Malacopteron cinereum, M. magnum, Stachyris nigriceps, S. nigricollis, S. maculata, and Cyanoderma erythropterum) in the Krau Wildlife Reserve in Peninsular Malaysia. We investigated; i) how these babblers forage in the wild and use vegetation to obtain food, and ii) how these trophically similar species differ in spatial distribution and foraging tactics. Results indicated that most babblers foraged predominantly on aerial leaf litter and used gleaning manoeuvre in intermediate-density foliage but exhibited wide ranges of vertical strata usage, thus reducing interspecific competition. The principal component analysis indicated that two components, i.e., foraging height and substrate are important as mechanisms to allow the coexistence of sympatric babblers. The present findings revealed that these bird species have unique foraging niches that are distinct from each other, and this may apply to other insectivorous birds inhabiting tropical forests. This suggests that niche separation does occur among coexisting birds, thus following Gause’ law of competitive exclusion, which states two species occupying the same niche will not stably coexist.

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“…In Peninsular Malaysia, populations of Micryletta have been moderately documented (e.g., Wood et al, 2008;Onn et al, 2010), although poorly investigated. Surveys conducted by Zakaria et al (2014) report high densities of Micryletta in Pahang, Peninsular Malaysia, where the 413 specimens of M. inornata detected represented the most commonly encountered anurans. Micryletta have been detected (sparsely) throughout Thailand across a moderately wide geographic span, but there has been no direct investigation into the phylogenetic affinities of these populations, although our analyses demonstrate that multiple species occur in this region.…”

Section: Discussionmentioning

confidence: 99%