DIVERSITY, ECOLOGY AND CONSERVATION STATUS OF NEPENTHES IN WEST SUMATRA PROVINCE, INDONESIA

Authors

  • Muhammad Mansur Postgraduate Biology Study Program, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, West Java, 16404, Indonesia. Research Center for Ecology and Ethnobiology, Indonesian National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor, Km 46, Cibinong Science Center, Cibinong, West Java, 16911, Indonesia.
  • Andi Salamah Cellular and Molecular Mechanisms in Biological System (CEMBIOS) Research Group, Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, West Java, 16404, Indonesia. https://orcid.org/0000-0002-4074-8342
  • Edi Mirmanto Research Center for Ecology and Ethnobiology, Indonesian National Research and Innovation Agency (BRIN), Jalan Raya Jakarta-Bogor, Km 46, Cibinong Science Center, Cibinong, West Java, 16911, Indonesia. https://orcid.org/0000-0001-7121-9980
  • Francis Q Brearley Department of Natural Science, Manchester Metropolitan University, Chester Street, jManchester, M1 5GD, UK https://orcid.org/0000-0001-5053-5693

DOI:

https://doi.org/10.11598/btb.2023.30.2.1896

Keywords:

associations, carnivorous plants, diversity, ecology, foliar nutrients, Indonesian Nepenthes, montane forest, Red List, West Sumatra

Abstract

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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Published

2023-08-01

How to Cite

Mansur, M., Salamah, A., Mirmanto, E., & Brearley, F. Q. (2023). DIVERSITY, ECOLOGY AND CONSERVATION STATUS OF NEPENTHES IN WEST SUMATRA PROVINCE, INDONESIA. BIOTROPIA, 30(2), 220–231. https://doi.org/10.11598/btb.2023.30.2.1896

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