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Floral diversity of the lowland ultrabasic forest in the Northern Sierra Madre Natural Park, Isabela, Luzon, Philippines

By: Ma Visitacion D. Guingab

Key Words: Philippine endemics, Ultrabasic forest, Species richness, Threatened species

J. Bio. Env. Sci. 15(5), 113-124, November 2019.

Certification: jbes 2019 0240 [Generate Certificate]

Abstract

This study provides information on the floral diversity, endemism and conservation status of the lowland ultrabasic forest in the Northern Sierra Madre Natural Park (NSMNP), Palanan, Isabela, Northeast Luzon, Philippines, which is vital to the management of the protected area. A total of 266 plant species in 140 genera and 71 families were recorded consisting of 12 herbs, 18 lianas, 66 shrubs, 169 trees and an endemic-epiphytic woody parasite. The most diverse among the genera with the highest number of taxa were Syzygium (32 spp.), Palaquium (12 spp.), Garcinia (9 spp.), Glochidion (9 spp.), and Trigonostemon (5 spp.). Species richness was highest for family Myrtaceae (35 spp.) followed by Rubiaceae (23 spp.), Phyllanthaceae (17 spp.), Sapotaceae (16 spp.), and Euphorbiaceae (14 spp.). Forty-two (42) of the total families were represented by a single genus. Species endemism was high with 40% (107 spp.) Philippine endemics: four (4) were found endemic only to Isabela Province – one of which was recorded endemic only to Sierra Madre Natural Park while 23 were endemic only to Luzon Island. Thirty-nine (39) species are globally threatened: six (6) being critically endangered, four (4) endangered, 22 vulnerable and seven (7) near threatened.

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Floral diversity of the lowland ultrabasic forest in the Northern Sierra Madre Natural Park, Isabela, Luzon, Philippines

Bremer B, Bremer K, Chase MW, Fay MF, Reveal JL, Soltis DE, Soltis PS, Stevens PF. 2009. An update of the angiosperm phylogeny group classification for the orders and families of flowering plants: APG III. Botanical Journal of Linnaean Society 161, 105-121.

Co LL, LaFrankie JV, Lagunzad DA, Pasion KAC, Consunji HT, Bartolome NA, Yap SL, Molina JE, Tongco MDC, Ferreras UF, Davies SJ, Ashton PS. 2006. Forest Trees of Palanan, Philippines: A Study in Population Ecology. Center for Tropical Forest Science.

DENR Administrative Order. 2017. Updated National List of Threatened Philippine Plants and their Categories. DAO 2017-11

Department of Environment and Natural Resources. 2006. Northern Sierra Madre Natural Park and outlying areas inclusive of the buffer zone. UNESCO World Heritage Centre

Fernando ES. 1998. Vegetation of the Philippine Islands. UPLB College, Laguna.

Fortus JR, Garcia HG. 2002. Floristic study of ultrabasic forest in Northern Sierra Madre Natural Park. Technical Report of NSMNP Conservation Project.

Gentry AH. 1995. Diversity and floristic composition of Neotopical dry forests in S.H. Bullock, H.A. Mooney and E. Medina, eds. Seasonally dry tropical forests. Cambridge University Press, Cambridge.

Gillespie TW, Grijalva A, Farris CN. 2000. Diversity, Composition, and Structure of Tropical Dry Forests in Central America. Plant Ecology 147, 37-47. Kluwer Academic Publishers.

Gillespie TW, Keppel G, Pau S, Price JP, Jaffré T, Meyer JY, O’Neill K. 2011. Floristic Composition and Natural History Characteristics of Dry Forests in the Pacific University of Hawai’i Press

Guingab MaVD, Welzen PCvan. 2018. Woody Flora of the Northern Sierra Madre Natural Park and Vicinity, Luzon, Philippines. ISU Publishing, Prints and Solutions.

International Union for Conservation of Nature (IUCN). 2017. The IUCN Red List of Threatened Species <www.iucnredlist.org>. Downloaded on 19 March 2018.

Lu XT, Yin JX, Tang JW. 2010. Structure, tree species diversity and composition of tropical seasonal rainforest in Xishuangbanna South-West China. Journal of Tropical Forest Science 22(3), 260-270

Naidu MT, Kumar OA. 2016. Tree diversity, stand structure, and community composition of tropical forests in Eastern Ghats of Andhra Pradesh, India. Journal of Asia-Pacific Biodiversity Vol. 9, Issue 3, pp. 328-334.

Zhu H, Yong C, Zhou S, Wang H, Yan L. 2015. Vegetation, floristic composition and species diversity in a tropical mountain reserve in southern Yunnan, SW China with implications for conservation. Tropical Conservation Science.

Ma Visitacion D. Guingab.
Floral diversity of the lowland ultrabasic forest in the Northern Sierra Madre Natural Park, Isabela, Luzon, Philippines.
J. Bio. Env. Sci. 15(5), 113-124, November 2019.
https://innspub.net/jbes/floral-diversity-lowland-ultrabasic-forest-northern-sierra-madre-natural-park-isabela-luzon-philippines/
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