Rediscovery of the supposedly extinct <i>Dipterocarpus cinereus</i>

Kusuma, Yayan Wahyu Candra; Wihermanto,; Risna, Rosniati Apriani; Ashton, P.

doi:10.1017/s0030605313000756

Cited by 7 publications

(7 citation statements)

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“…Furthermore, according to IUCN Red List Category, 11 species (42.3%) were classified as critically endangered, four species (15.4%) were of endangered, five species (15.2%) were of vulnerable, one species was of near threatened, two species were of least concern and three species were not assessed yet. The number of species identified in the present study was higher compared to of 22 species found by previous studies [6]- [8]. It was also higher compared to the number of 24 species recorded at the Herbarium Bogoriense.…”

Section: Discussioncontrasting

confidence: 86%

“…Due to this extensive timber extraction, Ashton [5] declared that D. cinereus was extinct in the wild in 1998. A team from Bogor Botanic Gardens -LIPI, however, reported the rediscovery of the species in 2013 [6]. Additional explorations at the end of 2013 [7] and 2017 [8] have been conducted on the island confirming the present of the species.…”

Section: Introductionmentioning

confidence: 99%

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High Species Diversity of the Family Dipterocarpaceae in Mursala Island, Indonesia

Robiansyah¹,

Hamidi²,

Randi³

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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Known to have a long history of timber extraction, Mursala Island on the west coast of North Sumatra Province is a small island home to the endemic tree Dipterocarpus cinereus and many other Dipterocarpaceae species. In the present study, distance sampling using line-transect was used to assess the species diversity and population status of Dipterocarpaceae species on the Island. A total of 26 Dipterocarpaceae species from 6 genera was identified from Mursala Island. The genus that was represented by the highest number of species was Shorea (13 species), followed by Vatica (5), Dipterocarpus (4), Hopea (2), Cotylelobium (1) and Dryobalanops (1). Among these, two Mursala Island endemic were identified: D. cinereus and H. bancana. Furthermore, according to IUCN Red List category, 11 species (42.3%) were classified as critically endangered, four species (15.4%) were of endangered, 5 species (15.2%) were of vulnerable, one species was of near threatened, 2 species were of least concern and 3 species were not assessed yet. Based on distance analysis, the species with the highest individual density was S. multiflora (21.72±10.96 individual/ha), whereas species with the lowest density was S. johorensis (0.06±0.01 individual/ha). Two main threats for Dipterocarpaceae species in Mursala Island were observed during the survey: illegal logging and habitat conversion. Increasing the protection level of the island was recommended to conserve all the species of Dipterocarpaceae. Besides, providing alternative sources of living for the illegal logger through commercialization of non-timber forest products, ecotourism, and the sustainable fishery was recommended so that they could stop illegal logging activity.

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Section: Discussioncontrasting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

High Species Diversity of the Family Dipterocarpaceae in Mursala Island, Indonesia

Robiansyah¹,

Hamidi²,

Randi³

2020

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…The island is popularly also known as Mansalaar Island and a home for many plant families, including Dipterocarpaceae. Based on the report from LIPI team, it is inhabited by various species of dipterocarps, including the reportedly extinct D. cinereus (Kusuma et al 2013). To get to Mursala Island, we first reach the town of Sibolga, approximately 350 Km from Medan, and go to the island by renting boat.…”

Section: Research Areamentioning

confidence: 99%

“…According to Ashton (1998), D. cinereus was determined endemic only to Mursala, a small island in Tapanuli Tengah, North Sumatera. It was first collected in 1916 asserted to be Dipterocarpus cinereus in 1928 by Peter Ashton. D. cinereus was rediscovered in March-April 2013 by a team from Indonesian Science Institute, and reported to be very few mature trees left inside the forest (Kusuma et al, 2013). However, there is so little information available related to this species and further information regarding its niche requirements and population status are unknown.…”

Section: Introductionmentioning

confidence: 99%

Conserving the previously reported extinct tree species Dipterocarpus cinereus: An ex-situ approach for species conservation strategy

Rachmat¹,

Subiakto²

2015

Prosiding Seminar Nasional Masyarakat Biodiversitas Indonesia

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Dipterocarpus cinereus (Dipterocarpaceae) merupakan salah satu jenis dipterokarpa yang dilaporkan telah punah berdasarkan daftar merah IUCN (IUCN Red List). Ekspedisi Tim LIPI pada kuartal pertama tahun 2013 memastikan bahwa jenis ini masih bisa ditemukan di habitat aslinya, yaitu Pulau Mursala. Namun demikian, sampai dengan saat ini baru informasi ketersediaannya saja yang ada, aksi lanjutan berupa multiplikasi maupun konservasi jenis di luar habitatnya yang sangat tinggi gangguan di Pulau Mursala masih belum ada. Penelitian ini bertujuan untuk mengumpulkan materi genetik tumbuhan baik berupa anakan alam maupun bahan setek untuk dikembangkan di persemaian sebagai upaya strategi pelestarian jenis secara ex-situ. Eksplorasi ke P. Mursala berhasil mengidentifikasi adanya anakan alam dan membawa 12 di antaranya keluar dari habitat aslinya untuk dikembangkan lebih lanjut di persemaian. Selain itu, sebanyak 49 bahan stek dari anakan alam tingkat pancang juga berhasil dibawa ke persemaian di Puslit Konservasi dan Rehabilitasi Bogor. Anakan alam diperlakukan di dalam ruangan tertutup berkelembapan tinggi dan naungan penuh, sementara perbanyakan vegetatif melalui pembuatan 49 setek dilakukan dengan menggunakan teknik KOFFCO. Hasil penelitian menunjukkan bahwa jenis ini sangat sensitif terhadap perubahan lingkungan, sampai dengan 16 bulan pengamatan, kemampuan hidup anakan sebesar 58%, sedangkan material setek tidak ada satupun yang menunjukkan kemampuan berakar meskipun sudah ditunggu sampai dengan minggu ke-36. Kemelimpahan cahaya diprediksi sebagai faktor yang menyebabkan kegagalan perbanyakan vegetatif dengan setek, hal ini didukung dengan kondisi anakan alam yang sampai saat ini masih juga belum bisa dilepas ke tempat yang lebih terbuka.

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“…They have produced most of the timber exported from Indonesia. They are also valued for their resin (Kusuma et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Short Communication: Rediscovery of a remnant habitat of the critically endangered species, Hopea sangal, in Pasuruan District, East Java, Indonesia

Soejono

2014

Biodiversitas

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Soejono. 2014. Rediscovery of a remnant habitat of the critically endangered species, Hopea sangal, in Pasuruan District, East Java, Indonesia. Biodiversitas 15: 236-239. During recent exploration for surviving indigenous flora carried out in Pasuruan District, EastJava, the endangered tree species, Hopea sangal Korth., has been rediscovered in a previously unknown location in East Java. TheIUCN Red List of Threatened Species, 2012, stated that H. sangal is critically endangered, A1cd, B1+2c, C1, D ver 2.3. This discoveryof H. sangal, and other supporting species that may still survive, can support the program of recovery of threatened plant species. At least for Pasuruan region, the remaining habitat, can be used as the core for H. sangal protection, thus H. sangal can breed naturally and sustainably. This information also can be used as one of the references or consideration tools for stakeholders to determine the priority of restoration policy.

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Rediscovery of the supposedly extinct Dipterocarpus cinereus

Cited by 7 publications

References 0 publications

High Species Diversity of the Family Dipterocarpaceae in Mursala Island, Indonesia

High Species Diversity of the Family Dipterocarpaceae in Mursala Island, Indonesia

Conserving the previously reported extinct tree species Dipterocarpus cinereus: An ex-situ approach for species conservation strategy

Short Communication: Rediscovery of a remnant habitat of the critically endangered species, Hopea sangal, in Pasuruan District, East Java, Indonesia

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