Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

Ponpithuk, Yuwadee; Siri, Supalak; Safoowong, Mongkol; Suksavate, ‪Warong; Marod, Dokrak; Duengkae, Prateep

doi:10.13057/biodiv/d210829

Cited by 2 publications

(4 citation statements)

References 23 publications

(31 reference statements)

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“…Frugivorous birds foraged more frequently in gaps relative to the forest interior, presumably because the gaps provided excellent fleshy fruit as a food resource for frugivores, especially small-sized fruit (Rueangket et al, 2021) and could accommodate an increasing population until reaching carrying capacity. The bird population in forest gaps initially increased over time and then fell, consistent with Khamcha and Gale (2012) and Ponpithuk et al (2020). Compared to the closed canopy undisturbed understory environment, forest gaps can also experience an increased density of insects due to changes in microclimatic conditions and the density of regeneration growth (Richards and Coley, 2007).…”

Section: Detection Probabilitysupporting

confidence: 79%

“…Understory birds were sampled using mist-netting in 12 gaps located in the understory vegetation layer because understory birds are sensitive to habitat change (Barlow et al, 2006;Hatfield et al, 2018;Tchoumbou et al, 2020). Two different habitat types were selected for net placement based on physiognomies: forest gap and closed canopy (Siri et al, 2019;Ponpithuk et al, 2020). All gaps had resulted from natural, large trees falling in the forest canopy and large-scale disturbances to the canopy opening following fires, wind storms, insect outbreaks or tree death (Richards, 1996;Desouza et al, 2001;Muscolo et al, 2014).…”

Section: Bird Samplingmentioning

confidence: 99%

“…The nets were opened at dawn (0600 hours), checked every 30 min and closed at dusk (1600 hours) with the exception of the hazard weather conditions (Wunderle et al, 2005;Khamcha and Gale, 2012;Werema, 2015;Siri et al, 2019;Ponpithuk et al, 2020). The mist nets were set monthly, with nets opened at four sites per day for three consecutive days (42,480 net-hours).…”

Section: Bird Samplingmentioning

confidence: 99%

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Effects of gap age on understory bird population in Mae Sa-Kog Ma Biosphere Reserve, Northern Thailand

2022

ANRES

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Importance of the work:It is important to understand the ecological effects of gap age on the understory bird populations in the conservation of montane forest. Objectives: To study bird populations in permanent plot in Mae Sa-Kog Ma Biosphere Reserve, Northern Thailand Materials & Methods: Birds were sampled using mist-netting at 12 gap sites during 5 yr. Results:In total 1,813 individual birds were caught, representing 82 species, with 330 individual birds recaptured in 38 species, which were classified into three avian feeding guilds. Insectivore were the most abundant guild for both natural gap and closed canopy sites. Frugivorous and nectarivorous birds were prevalent in gaps. Main finding: Frugivore and insectivore feeding guilds increased over time but did so more rapidly in forest gaps than closed-canopy habitats. The detection probability of birds was higher in forest gaps and increased more quickly in gaps than in closed-canopy habitat, possibly due to gap succession. Forest gaps may function as keystone habitats for birds in their role of sustaining frugivores and nectarivores during periods of fruit scarcity in the forest.

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Section: Detection Probabilitysupporting

confidence: 79%

Section: Bird Samplingmentioning

confidence: 99%

Section: Bird Samplingmentioning

confidence: 99%

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Effects of gap age on understory bird population in Mae Sa-Kog Ma Biosphere Reserve, Northern Thailand

2022

ANRES

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“…Members of the Pycnonotidae family dominated the understorey habitat of Malaysia's tropical forest. They are generalist frugivorous species that are ecologically diverse and occupy a wide array of habitats ( Ponpituk et al 2020 ). The Bulbuls are particularly important in the Asian region for their role in seed dispersal, especially in habitats that are degraded ( Sankamethawee et al 2011 , Corlett 2017 , Shakya and Sheldon 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Understorey bird assemblages in selected environmentally sensitive areas (ESA) of Selangor, Peninsular Malaysia

Munian

Mahyudin

Azman

2023

BDJ

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Environmentally Sensitive Areas (ESA) refer to areas that are of critical importance in terms of ecosystem services such as goods, services and life-support systems, such as water purification, pest control and erosion regulation. In addition, they also refer to areas that harbour the wealth of the nation’s biodiversity. However, the classification of ESA in Malaysia is incomprehensible and lacks weightage on biological elements as the current classification is more centred on physical attributes. In order to enhance the existing classification of ESA by introducing biological elements, biological data are urgently required, especially for forest reserves and protected habitat. Hence, we conducted understorey birds surveys in three ESA rank II permanent forest reserves, located in northern Selangor as baseline information to strengthen the ESA classification. The surveys were carried out using mist-netting in three 400 m × 200 m plots. Alpha diversity indices were calculated and showed a significant difference in terms of diversity, composition and biomass of understorey birds between investigated sites. Analysis of similarity (ANOSIM) showed that bird assemblages from forest reserves designated as ESA rank II in Selangor, based on disturbances levels, have weakly diverged and SIMPER analysis has identified six species that contributed to 60% of the differences amongst the bird assemblages. The finding provides the first insight into understorey birds of the study sites and the importance of conserving and preserving ESA of permanent forest reserves, especially the small and fragmented forests.

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Temporal variation in the population of bulbuls (Family Pycnonotidae) in lower montane forest, Northern Thailand

Cited by 2 publications

References 23 publications

Effects of gap age on understory bird population in Mae Sa-Kog Ma Biosphere Reserve, Northern Thailand

Effects of gap age on understory bird population in Mae Sa-Kog Ma Biosphere Reserve, Northern Thailand

Understorey bird assemblages in selected environmentally sensitive areas (ESA) of Selangor, Peninsular Malaysia

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