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Effective spatial planning plays a pivotal role in defining the progress and growth of a certain region. One aspect of spatial planning by PLANMalaysia involves the incorporation of environmentally sensitive areas (ESAs), which comprises eleven different landscape management. Integrating biological features is crucial when defining ESA Permanent Forest Reserve, as relying solely on physical attributes may not accurately reflect the true sensitivity of the environment. Therefore, there is a need to gather biological information to strengthen existing ESA. A study was conducted in Gunung Tebu Forest Reserve (GTFR) from April to July 2023. Multiple trapping approaches were deployed to assess volant and non-volant small mammal assemblage. In total, 155 individuals comprised of 31 species of small mammals were documented with the highest species abundant recorded by Maxomys rajah (n = 29) and Leopoldamys sabanus (n = 27). The diversity indices were varied throughout five sampling sessions, (Shannon = 1.841 to 2.543), (Simpson = 0.7951 to 0.9056). Comparison on species assemblage between GTFR and forest reserves in Hulu Terengganu showed a moderate similarity level. This finding offers the most recent insight of the small mammals in GTFR and highlights the significance of conserving and preserving (ESA) in permanent forest reserves.

Malaysia had developed guidelines to develop and conserve environmentally sensitive areas (ESAs), which mainly based on physical attributes, disregarding the biological elements. A recent study has identified ten potential biological parameters to be integrated into the ESA classification, especially for permanent forest reserve. However, the information on biological parameters is still scarce and inadequate, requiring extensive research on species diversity and its distribution especially on bird assemblages. Hence, a study on bird diversity was conducted over five sampling sessions from April to July 2023 in one of ESA permanent forest reserve, Gunung Tebu Forest Reserve, located in east coast of Peninsular Malaysia. A total of 76 species from 32 families were documented based on observation which is 51 species of the total species recorded, 31 species by mist-netting and 12 species with bird calling. The diversity (Simpson Index = 0.952 to 0.974, Shannon Index = 3.045 to 3.638) between sessions was compared. Based on Chao 2 estimator, the total species richness in the study area was estimated to be between 77 and 80 species. This comprehensive documentation highlights the previously underreported bird diversity in the forest reserve, emphasizing the need for including biological parameters as a classification attribute for environmentally sensitive area in Malaysia.

Small vertebrate surveys were carried out in the Sungai Brok and Sungai Betis Forest Reserves. The Central Forest Spine (CFS) initiative has recognised these forest reserves as part of Kelantan's important ecological corridors, known as D-PL1. The surveys were conducted from July to September 2019. This study aims to identify and update the checklist of small vertebrates in the selected forest reserves. One hectare plot was established in each forest reserve for this study. Traps were used to capture and document these vertebrates, including 100 collapsible cage traps, three harp traps, 10 mist nets, and 25 pitfall traps deployed at each sampling site. In addition, the surveys also carried out active searches and direct observations. Overall, this study recorded 83 species from 38 families of small vertebrates. With the total, small mammals comprise of 13 spp. from six families, birds (53 spp. from 24 families), and herpetofauna (17 spp. from eight families) were recorded during this study. Ten small mammal species are recorded as additional species for D-PL1. Birds and herpetofauna recorded 38 and eight additional species to the existing checklist of D-PL1, respectively. Based on the IUCN Red List of Threatened Species (Version 3.1), this study recorded three threatened species namely Great Argus ( Argusianus argus ), Great Slaty Woodpecker ( Mulleripicus pulverulentus ), and Grey-cheeked Bulbul ( Alophoixus tephrogenys ) in D-PL1. This information is likely to support stakeholders in formulating a management strategy for the forest mosaics in the corridor, which will continue to serve as an essential habitat for small vertebrates.

There are at least four families of rodents identified in Peninsular Malaysia namely Muridae, Sciuridae, Hystricidae, and Rhyzomidae. Although rodents are widespread throughout Peninsular Malaysia, information on rodents at Padang Chong Forest Reserve (PCFR) is scarce. Therefore, the main objective of this study is to identify and document the species composition of rodents at PCFR. Samplings were carried out at two plots along the gradient from the border of PCFR namely Plot 1 (500m) and Plot 2 (1km). The size of the respective plot is 1ha with 10 transect lines (AJ), 100m in length separately. These plots were sampled for five times from June to November 2022. Based on this study, a total of 65 individuals from nine species of rodent were documented. These nine species were identified from two families namely, Muridae (5 spp) and Sciuridae (4 spp). Of these, Leopoldamys sabanus was recorded as the highest captured species (25 individuals), followed by Maxomys whiteheadi (19 individuals) and Callosciurus notatus (7 individuals). There is no significant difference in terms of species composition between these plots, Plot 1 (n=33) and Plot 2 (n=32), which further supported by t-test value result (t-test=0.928; p(value)> 0.05). However, there is a single representative of Sundamys muelleri captured in Plot 1 which prefers the riverine area (around 10m). Callosciurus notatus were captured most in Plot 2 (6 individuals) compared to Plot 1 (1 individual). Certain areas nearby to Plot 2 were opened for agricultural purposes which explained the existence of this species at Plot 2. From this information, it is hoped that further actions can be taken to conserve the area to ensure the small mammal communities are preserved.

Mangroves and mudflats are essential intertidal habitats that support benthic communities, providing critical feeding grounds for waterbirds. However, the degradation of these habitats due to coastal reclamation poses significant threats to prey availability and waterbird populations along the South est Johor Coast. While most avian research in Johor focuses on forest birds, studies on coastal waterbirds, particularly their feeding ecology, remain scarce. Understanding the feeding ecology of waterbirds is crucial for strengthening conservation efforts in vulnerable intertidal habitats. This study investigated the feeding behaviour and diet composition of waterbirds along the South West Johor Coast, Malaysia. Fieldwork was conducted in three coastal mudflats from November 2020 to May 2021, employing the direct observation technique. A total of 576 hours of observation were recorded, averaging 2 hours and 19 minutes per focal observation. Of 17 waterbird species recorded, only 11 species were included in the analysis based on sufficient data. The results revealed that waterbirds primarily consumed fish, molluscs, worms, crabs and unidentified prey, with fish comprising 25% of their overall diet. Feeding behaviour varied significantly by morphology traits, with larger waterbirds demonstrating higher feeding efficiency. Despite lower feeding rates and shorter feeding durations, larger species had a greater percentage of successful feeding attempts, indicating their superior ability to meet energy requirements. These findings provide crucial baseline data for understanding waterbird feeding ecology and highlight the importance of conserving the intertidal habitats. This research contributes to the development of targeted conservation strategies for waterbirds in the Important Bird and Biodiversity Area (IBA) of the South West Johor Coast, Malaysia, an area increasingly at risk from habitat degradation.

Malaysia is blessed with lush tropical rainforests that harbour an exceptional diversity of amphibians and reptiles. However, compared to other animal groups, amphibians and reptiles have received limited attention in research, despite their ecological significance. With amphibians and reptile species having been declining rapidly due to anthropogenic activities, there is a pressing need to conserve these species and their habitats. Environmentally Sensitive Areas (ESAs) are designated regions that are beneficial due to their critical role in providing essential ecosystem services and serving as repositories of biodiversity. Nonetheless, the classification of ESAs in Malaysia lacks biological elements and only focuses on physical attributes. To enhance the current ESA classification framework by integrating biological components, there is an urgent need to obtain information on diversity and habitat in Malaysia. Therefore, the objectives of this study were twofold: to determine the diversity of amphibians and reptiles in Gunung Belumut Amenity Forest and to conduct a comparative analysis between the herpetofauna assemblages in Gunung Belumut with other forest reserves in Peninsular Malaysia. The survey was carried out between March and June 2022, with additional sampling conducted in February 2023. The Visual Encounter Survey (VES) and pitfall trap methods were employed to survey the herpetofauna species, focusing on both aquatic and terrestrial habitats within the study area. A total of 210 individuals representing 38 species of herpetofauna were recorded, comprising 18 amphibian and 20 reptile species. Amongst the observed species, Limnonectes blythii was the most frequently encountered amphibian, with 59 individuals observed, while the dominant reptile species was Cyrtodactylus consobrinus , represented by eight individuals. This pioneering study serves as a vital baseline documentation of the amphibian and reptile assemblages in Gunung Belumut Amenity Forest. It provides valuable information for identifying extant herpetofauna species, including those of potential conservation concern or rarity. These findings contribute to ongoing conservation efforts dedicated to the preservation of herpetofauna within the region. By understanding the diversity and distribution patterns of amphibians and reptiles in Gunung Belumut, effective conservation strategies can be developed to protect these species and their habitats.

The Permanent Forest Reserve (PFR) is recognised as one of the Environmentally Sensitive Areas (ESAs) in Malaysia`s spatial planning. Incorporating biological factors alongside existing physical attributes is crucial to improve the classification of ESAs. It is important to attain biological diversity information to formulate biological factors, which include vertebrates such as bird communities. Birds are highly sensitive to changes within ecosystems; hence, they play a pivotal role in reflecting the overall ecological condition. Therefore, the study focused on assessing bird species’ richness in the Kluang Forest Reserve (Kluang FR) and compared its bird diversity amongst five PFRs ESAs in southern Peninsular Malaysia. Methods such as mist netting, point count observations and call recording were deployed to calculate the alpha and beta diversity of the bird community. A total of 68 species comprised of 36 families were recorded and the white-rumped shama ( Copsychus malabaricus ) was the most abundant species in all reserves studied. Principal Coordinates Analysis (PCoA) revealed that the bird diversity in Kluang FR is more similar to bird santuary Panti Forest Reserve compared to the other four forest reserves and indicates that diversification of species richness. However, the absence of published species information in forest reserves poses challenges for comparing bird assemblages amongst different reserves. More extensive studies are needed in Johor and throughout Malaysia to provide data that can effectively assist and support biodiversity conservation and management.

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.