Ecological Studies on Nepenthes at Barito Ulu, Central Kalimantan, Indonesia

Mansur, Muhammad

doi:10.29122/jtl.v9i3.471

Cited by 4 publications

(4 citation statements)

References 1 publication

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“…Not a single Nepenthes individual was found in KTHF. This condition is clearly different with heath forests in other regions, such as in Sejahtera Village, West Kalimantan which contained 3 species of Nepenthes (Rantau et al 2021), in Pematang Gadung, West Kalimantan with 4 species (Utari et al 2023), in Barito Ulu, Central Kalimantan with 8 species (Mansur and Brearley 2008), Tanjung Selor, North Kalimantan with 6 species (Agustiorini et al 2022), in Bangka Belitung Islands with 3 species (Rizqiani et al 2018), and in Brunei Darussalam with 2 species (Latiff et al 2014). Nepenthes has the adaptation ability to live in nutrient-poor and infertile areas such as in heath soils (Mansur et al 2021(Mansur et al , 2022.…”

Section: Species Characteristicsmentioning

confidence: 89%

Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia

SOENDJOTO,

RIEFANI,

DIANA

2023

Biodiversitas

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Abstract. Soendjoto MA, Riefani MK, Diana S. 2023. Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia. Biodiversitas 24: 5418-5427. Heath forest (kerangas) is a unique ecosystem characterized with sandy soil with poor nutrients. This harsh condition makes heath forest has unique vegetation diversity as well as vulnerable to disturbances. In South Kalimantan, there is a heath forest located in Kuala Tambangan, Tanah Laut District which has never been explored. The research aims to analyze the diversity and composition of vegetation community in heath forest in Kuala Tambangan and identify factors that have the potential to damage the forest. Data was collected using the transect method placed at three sites in the heath forest. Along each transect, 10 observation plots with size 20 m × 20 m were established to record woody plants at the tree level. Within this plot, nested plots with size of 10 m × 10 m was created to record plants at pole level, 5 m × 5 m for saplings and herbaceous plants and 2 m × 2 m for seedlings, ferns and grasses. In total, there were 85 plant species across all observation plots with 79 species were found in the heath soils. Some typical heath forest species were found such as Melaleuca sp., Baeckea frutescens L. and Cratoxylum formosum (Jack) Benth. & Hook.fil. ex Dyer. Important Value Index (IVI) as well as Shannon-Wiener diversity index (H') varied, both by plant group and by study site. For example, the highest IVI of the tree group belonged to Acacia crassicarpa A.Cunn. ex Benth. and Acacia mangium Willd., and for pole level was Melaleuca sp. The lowest diversity occurred at Site B, while the highest was at Site C. The results on vegetation diversity, structure and composition suggest that this forest is in degraded condition. Fires and land conversion are factors that threaten the existence of heath forest in Kuala Tambangan. Our findings recommend the needs of efforts to protect and restore this unique ecosystem.

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Section: Species Characteristicsmentioning

confidence: 89%

Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia

SOENDJOTO,

RIEFANI,

DIANA

2023

Biodiversitas

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“…4.8 cm yr -1 ) than on Gunung Talang (29.9 ± 3.6 cm yr -1 ) (t = 2.06, p = 0.05), although the leaf production rate was not (9.8 ± 1.2 leaves yr -1 versus 7.3 ± 0.6 leaves yr -1 , respectively; Mansur et al in review); this could be due to the lower elevation of the plants studied on Bukit Malalak or simply the fact that different species were measured at each site (with the exception of N. bongso). It would be interesting to further examine the possible tradeoffs between leaf and stem production rate and plant survival (Mansur & Brearley 2008), as has been done in tropical tree seedling studies (Brearly et al 2016).…”

Section: Growth Ratesmentioning

confidence: 99%

Diversity, Ecology and Conservation Status of Nepenthes in West Sumatra Province, Indonesia

et al. 2023

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Nepenthes is the largest carnivorous plant genus present in Indonesia. There are 39 species of Nepenthes pitcher plants recorded in Sumatra from lowland to montane forests, and 34 of them are endemic; this represents the greatest species diversity of Nepenthes after Borneo. Field studies were conducted in 2021 and 2022 to increase our knowledge of the diversity, habitats and distributions of Nepenthes in West Sumatra province. Twenty-three species of Nepenthes were recorded from the province, consisting of 15 highland species, 4 mid-elevation species and 4 lowland species. Ecophysiological studies conducted at Bukit Malalak showed clumped distributions of N. bongso, N. dubia, N. eustachya and N. rhombicaulis. Foliar and pitcher fluid nutrient concentrations were found to be similar to those cited in other recent studies although growth rates were slightly more rapid than at Gunung Talang. Bukit Malalak is a new locality for two threatened species, namely N. dubia (CR) and N. rhombicaulis (VU), enlarging their extents of occurrence. In total, nine species from West Sumatra are threatened and conservation actions are urgently needed for these and other Nepenthes species remaining on the island.

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“…It is a good question for us, what should we do for Tanjung Selor's biodiversity placed in the future. Ecological disturbs such as forest burning, and deforestation of Nepenthes habitats increased the status of critical species in nature (Mansur & Bearly 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Some floristic and ecological studies of Nepenthes in Kalimantan have been carried out (Check & Jebb, 2001;Handayani & Astuti, 2005;Mansur & Bearly, 2008;Mansur, 2010;Damayanti et al, 2013;Kissinger et al, 2013;Mansur, 2013;Amanda et al, 2019;Apriyanto et al, 2021), however, none of these studies mentioned the existence of Nepenthes in Bulungan. Hence, according to the research that mentioned above this paper aimed to discover and report a checklist of the lowland Nepenthes in Tanjung Selor city, Bulungan regency of North Kalimantan.…”

Section: Introductionmentioning

confidence: 99%

Wild Pitcher Plant (Nepenthes: Nepenthaceae) in Lowland of Tanjung Selor: A Notes of Diversity, Conservation and Threats

Agustiorini

Rizqiani²,

Effendi³

2022

JBT

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Borneo is the second-highest diversity island for Nepenthes, with approximately comprising 23 species that were spread on this island. Species found on lowland to highland with variety habitat and ecological types. Tanjung Selor is the capital city of Bulungan Regency, North Kalimantan. Nepenthes distribution in these areas has never been reported, particularly in the heath forest. The study was conducted to report the floristic of Nepenthes in Tanjung Selor. We used a desktop study and field exploration on heath forest of Tanjung Selor in 2019 with rapid biodiversity assessment method. The preliminary report of Nepenthes in Bulungan are presented with species description, ecology, threats, illustration, and a brief disscusion regarding the species. We reported six wild species and one natural hybrid of Nepenthes based on exploration. Nepenthe’s habitat is in an open area, roadside, and heath forest vegetation. The threats are higher from habitat degradation and land conversion to agricultural land or non-agricultural uses. In this paper, we mentioned Nepenthes fusca growth in lowland habitat, commonly found in highland.

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Ecological Studies on Nepenthes at Barito Ulu, Central Kalimantan, Indonesia

Cited by 4 publications

References 1 publication

Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia

Floristic diversity and composition of heath forest in Kuala Tambangan Village, Tanah Laut District, Indonesia

Diversity, Ecology and Conservation Status of Nepenthes in West Sumatra Province, Indonesia

Wild Pitcher Plant (Nepenthes: Nepenthaceae) in Lowland of Tanjung Selor: A Notes of Diversity, Conservation and Threats

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