Academic literature on the topic 'Dipterocarous species'

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Journal articles on the topic "Dipterocarous species"

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Prasad, M., and Somlata Gautam. "Dipterocarpaceous macrofossils from Churia Group of Arjun Khola area, western Nepal and their phytogeographical and palaeoclimatical implications." Journal of Palaeosciences 65, no. (1-2) (2016): 247–70. http://dx.doi.org/10.54991/jop.2016.313.

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Investigation of plant megafossils collected from Churia Group of western Nepal revealed the presence of fossil wood, leaves and a fruit of a phytogeographically important genus, Dipterocarpus Gaertn. f. of the family Dipterocarpaceae. These have been described under the form species, Dipterocarpoxylon siwalicus Prakash, Dipterocarpus suraikholaensis Prasad and Pandey, and three new species namely Dipterocarpus nepalensis n. sp., D. miocenicus and D. churiensis. The analysis of present day distribution of extant species of Dipterocarpus comparable to the fossil remains indicates that they do n
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Suratman, Mohd Nazip, Siti Maisarah Che Abdulah, and Judith Gisip. "Distribution of Endangered Dipterocarps in the Freshwater Swamp Forest of Parit Forest Reserve, Perak." Environment-Behaviour Proceedings Journal 9, SI17 (2024): 419–24. http://dx.doi.org/10.21834/e-bpj.v9isi17.5445.

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Many endangered tree species suffered reductions in their population sizes due to forest fragmentation. A field survey was conducted to study the demographic structure of five threatened Dipterocarps species and to map their spatial distribution in freshwater swamp forests at Parit Forest Reserve, Perak, Malaysia. Of five species recorded, Shorea hemsleyana exhibited the highest number of individuals (i.e., 198), followed by Dipterocarpus semivestitus (35), S. macrantha (24), Hopea apiculata (14) and Vatica flavida (6). While the spatial distribution of D. semivestitus, S. macrantha, H. apicul
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Zohari, Ahmad Fitri, Nuralia Fatihah Ahmad Sanusi, Muhammad Zul Faris Aizad Mohd Shabri, et al. "Suatu Senarai Spesies Dipterokarpa dari Pulau Pangkor, Perak." Semarak Proceedings of Natural and Environmental Sciences 2, no. 1 (2025): 7–11. https://doi.org/10.37934/spnes.2.1.711a.

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Kertas kajian ini menyenaraikan spesies-spesies dipterokarpa yang terdapat di Pulau Pangkor, Perak. Terdapat tiga hutan simpan di pulau ini iaitu Hutan Simpan Sungai Pinang (HSSP), Hutan Simpan Pangkor Utara (HSPU) dan Hutan Simpan Pangkor Selatan (HSPS). Tinjauan dan pengutipan sampel steril dan fertil telah dibuat di semua denai di ketiga-tiga hutan simpan. Sampel diawet, dikeringkan dan dicamkan sehingga peringkat spesies. Data tambahan juga diperolehi dari spesimen-spesimen yang tersimpan di Herbarium Institut Penyelidikan Perhutanan Malaysia (KEP). Hasil kajian mendapati sebanyak 14 spesi
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Pascal, Jean-Pierre, and Raphael Pelissier. "Structure and floristic composition of a tropical evergreen forest in south-west India." Journal of Tropical Ecology 12, no. 2 (1996): 191–214. http://dx.doi.org/10.1017/s026646740000941x.

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ABSTRACTA permanent plot of 28 ha was established in a dense wet evergreen forest in the Western Ghats of India to study the functioning of the ecosystem. Since April 1990, 1981 trees of ≥30 cm gbh have been enumerated in a systematic sampling of five strips totalling 3.12 ha. This paper describes the main structural and floristic characteristics of the plot.The density (635 trees ≥30 cm gbh per hectare) and basal area (39.7 m2 ha−1) are high. Despite the high diversity (Simpson's D = 0.92 and Shannon's H' = 4.56), four species are distinctly, dominant in terms of an importance value index (re
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Rana, R., RA Villarin, O. Gailling, R. Finkeldey, and A. Polle. "Height growth, wood density and molecular markers to distinguish five tree species of Dipterocarpaceae grown at same site." Bangladesh Journal of Scientific and Industrial Research 47, no. 4 (2013): 407–14. http://dx.doi.org/10.3329/bjsir.v47i4.14070.

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The dipterocarps are of economic and ecological significance. To determine if simple traits can be used to distinguish wood of five representative species (Dipterocarpus kerrii, Hopea plagata, Parashorea malaanoman, Shorea almon and Shorea contorta), we determined tree height, wood density and chloroplastic (cp) DNA restriction patterns as a molecular fingerprint. Wood was obtained from trees of the same age grown at the same plantation (Leyte, Philippines). Data were subjected to cluster analysis (tree height, wood density) and used for the construction of a phylogenetic tree (cpDNA-PCR). Com
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Gunawan, Gunawan Wibisono, Rafdinal Rafdinal, and Riza Linda. "Notes of Dipterocarpus Gaertn. f. (1788) Species at Mentatai Resort Nanga Pinoh Region 1 National Park Management Section Bukit Baka Bukit Raya National Park." BIOLOGICA SAMUDRA 3, no. 1 (2021): 67–85. http://dx.doi.org/10.33059/jbs.v3i1.3530.

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Resort Mentatai is one of the six resorts of Bukit Baka Bukit Raya National Park that make up the Heart of Borneo. The Management Section of Mentatai resort in Nanga Pinoh Region I Bukit Baka Bukit Raya National Park is a place for monitoring and releasing of orangutans. The Dipterocarpaceae ecosystem in Bukit Baka Bukit Raya National Park has decreased from 46% to 33% for the period 2009 to 2017. This research aims to find out the species of Dipterocarpus found in the Mentatai resort area. The research was conducted for 3 months from October to December 2019 using the cruise method. The resul
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Adriyanti, Dwi Tyaningsih, Soekotjo, Mochammad Na'iem, and Anto Rimbawanto. "Pengelompokan Keruing (Dipterocarpus spp.) di Indonesia Menurut Karakter Buah." Jurnal Ilmu Kehutanan 10, no. 1 (2016): 33. http://dx.doi.org/10.22146/jik.12629.

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Status taksonomi Famili Dipterocarpaceae telah mengalami beberapa kali perubahan. Menurut tinjauan klasifikasi yang disusun oleh Heim, Symington, Meijer, Maury, dan Ashton bahwa Dipterocarpus memiliki hubungan yang cukup dekat dengan Anisoptera sehingga dalam beberapa klasifikasi digambarkan dengan menuliskan keduanya dalam satu kelompok. Namun, Heim memiliki pandangan yang berbeda dengan 4 ahli yang lain yaitu membagi genus Dipterocarpus menjadi 5 seksi yaitu sphaerales, angulati, plicati, alati, dan tuberculati. Penggolongan yang dilakukan oleh Heim atas Dipterocarpus ternyata didukung denga
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Hernandez, Jonathan O., Lerma SJ Maldia, Dennis E. Pulan, Inocencio E. Buot, and Byung Bae Park. "Leaf architecture and petiole anatomy of Philippine Dipterocarpus species (Dipterocarpaceae)." Bangladesh Journal of Plant Taxonomy 27, no. 1 (2020): 1–14. http://dx.doi.org/10.3329/bjpt.v27i1.47564.

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The study investigated the leaf architecture and petiole anatomy of eight Dipterocarpus (Dipterocarpaceae) species growing in Mount Makiling Forest Reserve (MMFR) in the Philippines to delineate the species, especially during their non-flowering phase. Leaf and petiole samples from MMFR were examined following the manual on leaf architecture studies. Freehand technique was used to examine the stomata and petiole characters. A UPGMA phenogram was then generated to determine the relationships among Dipterocarpus species using 26 leaf and petiole characters. The most useful characters to delineat
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Susilowati, A., D. Elfiati, A. Hidayat, et al. "Distribution and association pattern of Keruing (Dipterocarpus sp.) in Tangkahan, Gunung Leuser National Park." IOP Conference Series: Earth and Environmental Science 1241, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1755-1315/1241/1/012011.

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Abstract Keruing (Dipterocarpus sp.) is a commercially important timber and oil-producing species. Keruing’s wood is of high quality, and its oil is widely used for medicinal purposes. Because of the high price and demand for wood and oil, keruing has become a target for exploitation and causing the population to decrease. Understanding of the keruing population in natural habitats is important for conservation efforts, one of which is in the Gunung Leuser National Park (GLNP) area. The purpose of this study was to analyze the distribution patterns and associations of keruing in the Tangkahan
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Hossain, MA, MK Hossain, MS Alam, and MM Abdullah Al Mamun. "Structural composition and distribution of tree species of Dudhpukuria-Dhopachori Wildlife Sanctuary, Chittagong, Bangladesh." Journal of Biodiversity Conservation and Bioresource Management 3, no. 1 (2018): 17–30. http://dx.doi.org/10.3329/jbcbm.v3i1.36757.

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Structural composition based on diameter and height class distribution of the tree species of Dudhpukuria-Dhopachori Wildlife Sanctuary, Chittagong, Bangladesh was assessed. A total of 183 tree species having ≥ 10 DBH belonging to 125 genera and 48 families was recorded from the study area. Different species were found to dominate in different DBH classes, i.e. Aporosa wallichii (4.06%), Artocarpus chama (1.54%) and Dillenia pentagyna (0.38%) dominated 10 - < 25 cm, 25 - < 40 cm and 40 - < 55 cm DBH, respectively. Swintonia floribunda was found in maximum (7 out of 8) number of DBH cl
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Dissertations / Theses on the topic "Dipterocarous species"

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Amaludin, Nazahatul Anis. "Modelling tropical tree species distributions for improved conservation assessments of dipterocarps in Malaysia and the Philippines." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=196257.

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Southeast Asian forests are globally important for their high species richness and endemicity of plant species. However, the region has suffered from high rates of deforestation, which potentially reduces the availability of habitat for tree species and other components of biodiversity. As a result many species may be at risk of extinction, but the extent of this problem has not been addressed systematically. In this thesis I conduct conservation assessments for multiple tree species in the Dipterocarpaceae growing in Sabah and the Philippines to determine the extent of extinction risk arising
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Dang, Le Anh Tuan. "Ontogenetic variations in leaf traits of the homoblastic species Dipterocarpus alatus under two light conditions at Cat Tien national park, Vietnam." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20236/document.

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Contexte et objectifs : Les tentatives pour expliquer les variations des paramètres foliaires fondées uniquement sur les facteurs environnementaux, ce qui conduira à des erreurs importantes si la plante montre des variations ontogénétiques substantielles des propriétés foliaires. Nous avons évalué les variations des 27 traits morpho-anatomiques des feuilles de Dipterocarpus alatus durant six stades de développement architectural et entre les axes à un stade de développement donné sous deux conditions lumineuses différentes.Méthodologies:Une analyse architecturale a été réalisée pour distinguer
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Book chapters on the topic "Dipterocarous species"

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Jenkins, R. M., and D. J. Mabberley. "A breadfruit amongst the dipterocarps: galls and atavism." In Plant Galls. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198577690.003.0011.

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Abstract For nearly three centuries the spinose gall of the Indian tree, Hopea ponga (Dennst.) Mabberley (Dipterocarpaceae) was mistaken for a fruit, especially one of a species of Artocarpus Forster & Forster f. (Moraceae). The history of the taxonomic confusion is related and the significance of the superficial resemblance of the gall to a fruit is discussed. Fieldwork in Malabar has led to an understanding of the development and ecology of the gall and these are considered in relation to the life cycle of the cecidozoan, an undescribed species in the Beesonia-Gallacoccus complex (Homopt
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SEIBERT, Berthold. "FOOD FROM DIPTEROCARPS: UTILIZATION OF THE TENGKAWANG SPECIES GROUP FOR NUT AND FAT PRODUCTION." In Dipterocarp Forest Ecosystems: Towards Sustainable Management. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789814261043_0027.

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KESSLER, Paul J. A. "NOT ONLY DIPTEROCARPS: AN OVERVIEW OF TREE SPECIES DIVERSITY IN DIPTEROCARP FOREST ECOSYSTEMS OF BORNEO." In Dipterocarp Forest Ecosystems: Towards Sustainable Management. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789814261043_0004.

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Conference papers on the topic "Dipterocarous species"

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Liliwirianis, N., Mohd Nazip Suratman, and Siti Zubaidah Mat Tahir. "Conservation of the critically endangered tree species Dipterocarpus semivestitus in Malaysia." In 2013 IEEE Business Engineering and Industrial Applications Colloquium (BEIAC). IEEE, 2013. http://dx.doi.org/10.1109/beiac.2013.6560121.

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RACHMAT, HENTI HENDALASTUTI. "Conserving the previously reported extinct tree species Dipterocarpus cinereus: An ex-situ approach for species conservation strategy." In Seminar Nasional Masyarakat Biodiversitas Indonesia. Masyarakat Biodiversitas Indonesia, 2015. http://dx.doi.org/10.13057/psnmbi/m010331.

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Susilowati, Arida, Deni Elfiati, Asep Hidayat, et al. "Woody species structure and regeneration status in Keruing (Dipterocarpus spp.) habitat, Tangkahan Gunung Leuser National Park." In PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM ON INNOVATIVE BIOPRODUCTION INDONESIA ON BIOTECHNOLOGY AND BIOENGINEERING 2022: Strengthening Bioeconomy through Applied Biotechnology, Bioengineering, and Biodiversity. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0171623.

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SIREGAR, MUSTAID. "Spatial distribution of abundant tree species at a mixed dipterocarps forest in Bukit Bangkirai, East Kalimantan three years after long drought and forest fire." In Seminar Nasional Masyarakat Biodiversitas Indonesia. Masyarakat Biodiversitas Indonesia, 2017. http://dx.doi.org/10.13057/psnmbi/m030215.

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