Forests over limestone in Guiuan, Eastern Samar, the Philippines: Species composition and influencing environmental factors
##plugins.themes.bootstrap3.article.sidebar##
Issue
Section
Articles
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
##plugins.themes.bootstrap3.article.main##
Abstract
Abstract. Buot Jr IE, Villanueva ELC, Origenes MG, Obeña RDR. 2023. Forests over limestone in Guiuan, Eastern Samar, the Philippines: Species composition and influencing environmental factors. Biodiversitas 24: 5123-5136. Forests over limestone are critical ecosystems providing numerous ecosystem services. However, the ecology of these ecosystems is less studied like the Guiuan Marine Resource Protected Landscape and Seascape (GMRPLS) in Eastern Samar, Philippines which incidentally is affected by strong typhoons. Studies on forests over limestone are even more essential to understand the vegetation ecology providing insights in crafting appropriate management strategy to sustain ecosystem services. Hence, the study aims to identify the woody vegetation diversity and composition of forests over limestone in GMRPLS, and to analyze the environmental factors influencing the physiognomy and ecology of the forests. Standard vegetation techniques were used and a total of nine plots with size of 20 × 20m each were established to assess the tree species (?1m height). Plant abundance data were recorded and computed. Soil samples were collected while climate data were obtained from the Guiuan, Eastern Samar Weather Station. Cluster analysis using relative density of trees per plot was done in order to identify major plant communities. Subsequently, a canonical correspondence analysis was carried out to pinpoint which environmental variables influenced the plant data set. Results show a total of 37 species belonging to 17 families, with 18 species are listed under by IUCN and seven species are listed by DAO 2017-11. Cluster analysis indicated 3 vegetation groupings or clusters named after the dominant species per plot, namely Cluster I (Hancea-Calophyllum-Macaranga-Ficus-Gnetum), Cluster II (Monoon-Wallaceodendron-Artocarpus-Hancea-Bago-eho), and Cluster III (Bridelia-Monoon-Neonauclea-Gnetum-Artocarpus-Sterculia-Hancea). GUI 02 plot (Cluster 1) was observed as the most diverse with the highest Simpson’s index and Fisher’s alpha, as well as the highest in total number of tree species. Canonical correspondence analysis indicated elevation, temperature and anthropogenic disturbances as the major factors influencing the vegetation diversity and composition. This can be used to formulate forest management strategies for the sustainable conservation of forests over limestone in GMRPLS.
##plugins.themes.bootstrap3.article.details##
References
Abe T, Tanaka N, Shimuzu Y. 2018. Plant species diversity, community structure and invasion status in insular primary forests on the Sekimon uplifted limestone (Ogasawara Islands). Journal of Plant Research. 131 (6): 1001-1014.
Aureo W, Reyes Jr.T, Mutia FC, Tandang D, Jose R. 2021. Floristic composition and community structure along the elevational gradient of Balinsasayao Twin Lakes Natural Park in Negros Oriental, Philippines. One Ecosystem, 6. https://doi.org/10.3897/oneeco.5.e56536
Bañares-de-Dios G, Macía MJ, de Carvalho GM, Arellano G, Cayuela L. 2022. Soil and climate drive floristic composition in tropical forests: A literature review. Frontiers in Ecology and Evolution, 10. https://doi.org/10.3389/fevo.2022.866905
Barlow J, França F, Gardner TA, Hicks CC, Lennox GD, Berenguer E, Castello L, Economo EP, Ferreira J, Guénard B, Gontijo Leal C, Isaac V, Lees AC, Parr CL, Wilson SK, Young PJ, Graham NAJ. 2018. The future of hyperdiverse tropical ecosystems. Nature, 559(7715), 517–526.https://doi.org/10.1038/s41586-018-0301-1
Becknell JM, Powers JS. 2014. Stand age and soils as drivers of plant functional traits and aboveground biomass in secondary tropical dry forest. Canadian Journal of Forest Research, 44(6), 604–613. https://doi.org/10.1139/cjfr-2013-0331
BirdLife/FFI/IUCN/WWF. 2014. Joint briefing paper on extraction and biodiversity in limestone areas. Cambridge, UK, 1-4. Retrieved from https://www.birdlife.org/sites/default/files/Extraction-andBiodiversity-in-Limestone-Areas.pdf.
BMB-DENR. 2019. Protection and Conservation Strategy and Action Plan. Retrieved from http://www.bmb.gov.ph/bmb/CAWED/Proposed_Policy/CMPCSAP_ 2019-2028.pdf?cv=1.
Buot IE Jr, Okitsu S. 1998. Vertical distribution and structure of the tree vegetation in the Montane Forest of Mt. Pulog, Cordillera Mountain Range, the highest mountain in Luzon Is., Philippines. Vegetation Science, 15: 19-32.
Buot IE Jr. 2008. Sustaining Environmental health in Philippine Satoyama landscapes. Asia Life Sciences Supplement 2: 129-138.
Buot IE Jr. 2010. Satoyama-like landscape in the Philippines: Prospects in the light of the recently- launched International Partnership for the Satoyama Initiative at COP 10. Proceedings of the Third International Conference on Forest Related Traditional Knowledge and Culture in Asia. Pp. 57-61.
Buot IE Jr. 2014.Conservation and Sustainability of Socio-Ecological Production Landscapes and Seascapes
Buot IE Jr, Buhay AFV. 2022. Types of socioecological production landscapes of the Philippines based on dominant biodiversity: status, problems and future directions. Biodiversitas 23 (7): 3755-3770.
Buot IE Jr, Osumi K. 2011. Land use Type Pattern and Woody Species Composition Near Human Disturbed Landscapes on Mount Makiling, Luzon Island. American Journal of Environmental Sciences, 7(4), 306–315. https://doi.org/10.3844/ajessp.2011.306.315
Buot IE Jr, Rabena MAF. 2020. Ifugao Rice Terraces as a satoyama landscape in the 21st century (P.G. Garcia, & J.V. Serrano, Eds.). University of the Philippines Open University. Printed ISBN: 978-971-767-233-5. Digital ISBN: 978-971-767-234-2 (https://networks. upou.edu.ph/33036/ifugao-rice-terraces-as-a-satoyama-landscape-in-the-21st-century/)
Buot IE Jr, Habito CD, Bulong MP. 2020. Conserving Ifugao Rice Terraces satoyama landscape (P.G. Garcia, & J.V. Serrano, Eds.). University of the Philippines Open University. Printed ISBN: 978-971-767-235-9. Digital ISBN: 978-971-767-236-6 (https://networks. Upou).
Buot MM, Buot IE Jr. 2022a. Volcanic seascapes. In Routledge Handbook of Seascapes (pp. 385–398). Routledge. http://dx.doi.org/10.4324/9780429273452-30
Buot IE Jr, Origenes MG, Obeña RDR. 2022b. Conservation Status of Native Mangrove Species in the Philippines. J. Wetlands Biodiversity. 12: 51-65
Buot IE Jr, Origenes MG, Obeña RDR. 2022b. Conservation Status of Native Mangrove Species in the Philippines. J. Wetlands Biodiversity. 12: 51-65
Buot IE Jr, Origenes MG, Obeña RDR, Villanueva ELC, delos Angeles MD. 2022c. Some threatened woody plant species recorded from forests over limestone of the Philippines. Journal of Threatened Taxa, 14(11), 22058–22079. https://doi.org/10.11609/jott.8119.14.11.22058-22079
Cabrera O, Benítez A, Cumbicus N, Naranjo C, Ramón P, Tinitana F, Escudero A. 2018. Geomorphology and altitude effects on diversity and structure of vanishing Montane Forest of southern Ecuador. MDPI AG. http://dx.doi.org/10.20944/preprints201810.0283.v1
Cadiz GO, Buot IE Jr. 2009. An enumeration of the woody plants of Cantipla Forest fragments, Cebu Island, Philippines. Philippine Journal of Systematic Biology, 3(1). https://doi.org/10.3860/pjsb.v3i1.1008
Cadiz GO, Buot IE Jr. 2010. An Enumeration of the Vascular Plants of Mount Tabunan, Cebu Island, Philippines. The Thailand Natural History Museum Journal 4(2) 71 -77.
Calubaquib MAM, Navarrete IA, Sanchez PB. 2016. Properties and Nutrient Status of Degraded Soils in Luzon, Philippines. Philippine Journal of Science. 145 (3): 249-258.
Caringal AM, Buot IE Jr, Villanueva ELC. 2019. Woody plant communities in the Philippine teak forest landscape along Verde Island Passage, Batangas, Luzon, Philippines. Biodiversitas Journal of Biological Diversity, 20(11). https://doi.org/10.13057/biodiv/d201111
Caringal AM, Buot IE Jr, Villanueva ELC. 2021. Endemic Philippine Teak (Tectona philippinensis Benth. & Hook. F.) and Associated Flora in The Coastal Landscapes of Verde Island Passage, Luzon Island, Philippines. Current Science, 120(6), 1057. https://doi.org/10.18520/cs/v120/i6/1057-1065
Casas EV, Baguinon NT. 2009. Optimizing landscape value for man and nature: a case study of land-suitability mapping to conserve biodiversity in Lawaan, Eastern Samar, Philippines.
Chen L, Tang LN, Ren Y, Liao J. 2015. Ecological land classification: a quantitative classification and ordination of forest communities adjacent to a rapidly expanding urban area in southeast coastal China. Acta Ecologica Sinica, 35(2), 46–51. https://doi.org/10.1016/j.chnaes.2014.12.002
Clements R, Sodhi NS, Schilthuizen M, Ng PKL. 2006 Limestone karsts of Southeast Asia: Imperiled arks of biodiversity. BioScience, 56(9), 733. https://doi.org/10.1641/0006-3568(2006)56 [733:lkosai]2.0.co;2
Concepción ED, Moretti M, Altermatt F, Nobis MP, Obrist MK. 2015. Impacts of urbanisation on biodiversity: the role of species mobility, degree of specialisation and spatial scale. Oikos124 (12): 1571-1582.DOI: 10.1111/oik.02166.
De Jager, NR, Rohweder JJ, Yin Y, Hoy E. 2015. The Upper Mississippi River floodscape: Spatial patterns of flood inundation and associated plant community distributions. Applied Vegetation Science, 19(1), 164–172. https://doi.org/10.1111/avsc.12189
Department of Agriculture-[RFU8] Eastern Visayas. https://www.darfu8.tripod.com. Date accessed: 29/11/2018.
DENR Administrative Order 2017-11. Updated National List of Threatened Philippine Plants and Their Categories. Downloaded from https:// bmb.gov.ph/index.php/e-library/laws-andpolicies/denr-administrative-orders/dao-2017-2020?download=197: denradministrativeorder-2017-11 on 13 July 2021.
Diez JM, Giladi I, Warren R, Pulliam HR. 2014. Probabilistic and spatially variable niches inferred from demography. Journal of Ecology, 102(2), 544–554. https://doi.org/10.1111/1365-2745.12215
Fernandez DAP, delos Angeles MD, Obeña RDR, Tolentino PJS, Villanueva ELC, Buot IE Jr. 2020. Fauna and Flora of Forests over Limestone in Calicoan Island, Guiuan Marine Reserve Protected Landscape and Seascape (GMRPLS), Eastern Samar, Philippines. Journal of Marine and Island Cultures, 9(2). https://doi.org/10.21463/jmic.2020.09.2.07
Fernando ES, Suh MH, Lee J, Lee DK. 2008. Forest Formations of the Philippines. ASEAN-Korea Environmental Cooperation Unit (AKECU), Seoul National University, Korea. Pp. 232.
Gao M, Piao S, Chen A, Yang H, Liu Q, Fu YH, Janssens IA. 2019. Divergent changes in the elevational gradient of vegetation activities over the last 30 years. Nature Communications, 10(1). https://doi.org/10.1038/s41467-019-11035-w
Gilbert KJ, Bittleston LS, Naive MAK, Kiszewski AE, Buenavente PAC, Lohman DJ, Pierce NE. 2020. Investigation of an elevational gradient reveals strong differences between bacterial and eukaryotic communities coinhabiting nepenthes phytotelmata. Microbial Ecology, 80(2), 334–349. https://doi.org/10.1007/s00248-020-01503-y
Guijarro GA. 2019. Climatol: Climate Tools (Series Homogenization and Derived Products). R package version 3.1.2. https://CRAN.Rproject.org/package=climatol.
Hammer Ø, Harper DAT, Ryan PD. 2001. PAST: Paleontological Statistics Software package for education and data analysis. Palaeontol Electron 4 (1): 9pp.
Hamilton-Smith E. 2001. Current initiatives in the protection of karst biodiversity. Nat Croatica 10 (3): 229-242.
He C, Jia S, Luo Y, Hao Z, Yin Q. 2022. Spatial distribution and species association of dominant tree species in Huangguan Plot of Qinling Mountains, China. Forests, 13(6), 866. https://doi.org/10.3390/f13060866
Howard C, Flather CH, Stephens PA. 2019. What drives at?risk species richness? Environmental factors are more influential than anthropogenic factors or biological traits. Conservation Letters, 12(2). https://doi.org/10.1111/conl.12624
Huyen NT, Viet PB, Nguyen LD. 2020. Assessing the Applicability of Radar and Optical Images in Monitoring a Mangrove Forest: A Case Study of Ca Mau Province, Vietnam
Idowu GA, Olonimoyo EA, Idowu AM, Aiyesanmi AF. 2020. Impact of gas and oil-fired power plants on proximal water and soil environments: Case study of Egbin power plant, Ikorodu, Lagos State, Nigeria. SN Applied Sciences, 2(8). https://doi.org/10.1007/s42452-020-3150-0
Imani G, Zapfack L, Kalume J, Riera B, Cirimwami L, Boyemba F. 2016. 'Woody vegetation groups and diversity along the altitudinal gradient in mountain forest: Case study of Kahuzi-Biega National Park and its surroundings, DRC', Journal of Biodiversity and Environmental Sciences 8, 134-150.
International Partnership for the Satoyama Initiative (IPSI). 2014. The International Partnership for the satoyama Initiative (IPSI): working towards societies in harmony with nature.
International Partnership for the Satoyama Initiative (IPSI)-United Nations University (UNU). 2023. The Satoyama Initiative. Published on the Internet, https://satoyama-initiative.org/. Retrieved 10 April 2023.
International Union for Conservation of Nature (IUCN). 2022. The IUCN Red List of Threatened Species. Version 2021-3. https://www.iucnredlist.org
IPCC. 2019. Global Warming of 1.5 C. An IPCC special report on the impacts of global warming of 1.5 C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty. Digital resource available at https://www. ipcc.ch/sr15
Kaspari M, Bujan J, Roeder KA, Beurs K, Weiser MD. 2019. Species energy and Thermal Performance Theory predict 20?yr changes in ant community abundance and richness. Ecology, 100(12). https://doi.org/10.1002/ecy.2888
Keane R. 2017. Disturbance regimes and the historical range and variation in terrestrial ecosystems. In Reference Module in Life Sciences. Elsevier. http://dx.doi.org/10.1016/b978-0-12-809633-8.02397-9
Laurance WF, Sayer J, Cassman KG. 2014. Agricultural expansion and its impacts on tropical nature. Trends in Ecology & Evolution, 29, 107–116. https ://doi.org/10.1016/j.tree.2013.12.001
Lillo EP, Malaki ABB, Alcazar SMT, Nuevo RU, Rosales R. 2019. Native Trees on Mount Lantoy Key Biodiversity Areas (KBA), Argao, Cebu, Philippines. Philippine Journal of Science 148(2): 359-371.
Lillo EP, Malaki ABB, Alcazar SMT, Rosales RC, Redoblado BR, Gealon GGG, Diaz JLB, Pantinople EM, Buot IE Jr, Leano E. 2020a. Flora of Mount Capayas Key Biodiversity Area an Introductory Guide. Cebu Technological University (CTU), Argao Campus, Department of Science and Technology (DOST), and the Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development (PCAARRD). ISBN 978-621-96085-4-1 (Dec 2020).
Lillo EP, Malaki ABB, Alcazar SMT, Rosales RC, Redoblado BR, Gealon GGG, Diaz JLB, Pantinople EM, Buot IE Jr, Leano E. 2020b. Flora of Nug-as Forest Key Biodiversity Area an Introductory Guide. Cebu Technological University (CTU), Argao Campus, Department of Science and Technology (DOST), and the Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development (PCAARRD). ISBN 978-621-96085-3-4 (Dec 2020).
Lillo EP, Malaki AB, Alcazar SMT, Rosales R, Redoblado BR, Pantinople E, Nuevo RU, Cutillar RC, Almirante A, Buot IE Jr. 2020c. Diversity and distribution of ferns in forest over limestone in Cebu Island Key Biodiversity Areas (KBAs), Philippines. Biodiversitas Journal of Biological Diversity, 21(1). https://doi.org/10.13057/biodiv/d210148
Malaki ABB, Lillo EP, Alcazar SMT, Rosales RC, Redoblado BR, Gealon GGG, Diaz JLB, Pantinople EM, Buot IE Jr, Leano E. 2020a. Fauna of Mount Capayas Key Biodiversity Area. An Introductory Guide. Cebu Technological University (CTU), Argao Campus, Department of Science and Technology (DOST), and the Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development (PCAARRD). ISBN 978-621-96085-2-7 (Dec 2020).
Malaki ABB, Lillo EP, Alcazar SMT, Rosales RC, Redoblado BR, Gealon GGG, Diaz JLB, Pantinople EM, Buot IE Jr, Leano E. 2020b. Fauna of Nug-as Forest Key Biodiversity Area an Introductory Guide. Cebu Technological University (CTU), Argao Campus, Department of Science and Technology (DOST), and the Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development (PCAARRD). ISBN 978-621-96085-5-8 (Dec 2020)
Médail F. 2017. The specific vulnerability of plant biodiversity and vegetation on Mediterranean islands in the face of global change.Reg Environ Change 17 (6): 1775-1790. DOI: 10.1007/s10113-017-1123-7.
Mueller-Dombois D, Ellenberg H. 1974. Aims and Methods of Vegetation Ecology. John Wiley and Sons, USA.
Newbold T, Hudson LN, Hill SLL, Contu S, Lysenko I, Senior RA, Börger L, Bennett DJ, Choimes A, Collen B, Day J, De Palma A, Díaz S, Echeverria-Londoño S, Edgar MJ, Feldman A, Garon M, Harrison MLK, Alhusseini T, … Purvis A. 2015. Global effects of land use on local terrestrial biodiversity. Nature, 520(7545), 45–50. https://doi.org/10.1038/nature14324
Nguyen TV, Mitlöhner R, Bich NV. 2015. Environmental factors affecting the abundance and presence of tree species in a tropical lowland limestone and non-limestone forest in Ben En National Park, Vietnam. Journal of Forest and Environmental Science, 31(3), 177–191. https://doi.org/10.7747/jfes.2015.31.3.177
Obeña RDR, Tolentino PJS, Villanueva ELC, Fernandez DAP, delos Angeles MD, Buot IEJr. 2021. Flora and Fauna Inventory of Limestone Forests in Taft, Eastern Samar, Philippines. The Thailand Natural History Museum Journal 15(1): 1-20.
Ohsawa M. 1984. Differentiation of vegetation zones and species strategies in the subalpine region of Mt. Fuji. Plant Ecology, 57: 15-52. DOI: 10.1007/BF00031929
Pham VV, Ammer C, Annighöfer P, Heinrichs S. 2021. Tree regeneration characteristics in limestone forests of the cat ba national park, Vietnam. Research Square Platform LLC. http://dx.doi.org/10.21203/rs.3.rs-244706/v1
Pungetti G. 2022. Routledge Handbook of Seascapes. Routledge. http://dx.doi.org/10.4324/9780429273452
Rana SK, Gross K, Price TD. 2019. Drivers of elevational richness peaks, evaluated for trees in the east Himalaya. Ecology, 100, e02548. https://doi.org/10.1002/ecy.2548
R Core Team. 2019. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. URL https://www.R-project.org/.
Rodrigues PMS, Schaefer CEGR, Silva JdeO, Ferreira Júnior WG, dos Santos RM, Neri AV. 2016. The influence of soil on vegetation structure and plant diversity in different tropical savannic and forest habitats. Journal of Plant Ecology, rtw135. https://doi.org/10.1093/jpe/rtw135
Sarmiento G. 1986. Ecologically crucial features of climate in high tropical mountains. En: Vuilleumier, F. Monasterio, M. (Eds): High Altitude Tropical Biogeography, Oxford University Press, Oxford, pp.11-45.
Sopsop LB, Buot IE Jr. 2013. The forest types in Aborlan Guba System, Palawan Island, Philippines. IAMURE International Journal of Ecology and Conservation, 7(1). https://doi.org/10.7718/ijec.v7i1.729
Struebig MJ, Kingston T, Zubaid A, Le Comber SC, Mohd-Adnan A, Turner A, Rossiter SJ. 2009. Conservation importance of limestone karst outcrops for Palaeotropical bats in a fragmented landscape. Biol Conserv 142 (10): 2089-2096. DOI: 10.1016/j.biocon.2009.04.005
Ter Braak CJF. 1987. The analysis of vegetation-environment relationships by canonical correspondence analysis. In Theory and models in vegetation science (pp. 69–77). Springer Netherlands. http://dx.doi.org/10.1007/978-94-009-4061-1_7
Tolentino PJS, Villanueva ELC, Buot IE Jr. 2019. Leaflet: Assessment and Conservation of Forest over Limestone Ecosystem Biodiversity in Selected Municipalities of Samar Island, Philippines. CONserve-KAIGANGAN, IBS, UPLB, College, Laguna.
Tolentino PJ, Navidad JRL, Delos Angeles MD, Fernandez DAP, Villanueva ELC, Obeña RDR, Buot IE Jr. 2020. Review: Biodiversity of forests over limestone in Southeast Asia with emphasis on the Philippines. Biodiversitas Journal of Biological Diversity, 21(4). https://doi.org/10.13057/biodiv/d210441
UN-Water country briefs Philippines. https://www.unwater.org. Date accessed: 18/12/2018
Urban MC. 2015. Accelerating extinction risk from climate change. Science, 348(6234), 571–573. https://doi.org/10.1126/science.aaa4984
Van YT, Cochard R. 2017. Tree species diversity and utilities in a contracting lowland hillside rainforest fragment in Central Vietnam. Forest Ecosystems, 4(1). https://doi.org/10.1186/s40663-017-0095-x
Villanueva ELC, Buot IE Jr. 2018. Vegetation analysis along the altitudinal gradient of Mt. Ilong, Halcon Range, Mindoro Island, Philippines. Biodiversitas Journal of Biological Diversity, 19(6), 2163–2174. https://doi.org/10.13057/biodiv/d190624
Villanueva ELC, Fernandez DAP, delos Angeles MD, Tolentino PJS, Obeña RDR, Buot IE Jr. 2021a. Biodiversity in Forests over Limestone in Paranas, Samar Island Natural Park (SINP) A UNESCO World Natural Heritage Site Nominee. Tropical Natural History 21(1): 119-145.
Villanueva ELC, Fernandez DAP, Tolentino PJS, Obeña RDR, Buot IE Jr. 2021b. Checklist of the Flora and Fauna of the Karst Forests in Basey, Samar, Philippines. The Thailand Natural History Museum Journal 15(2), 147-160.
Wardle DA. 2016. Do experiments exploring plant diversity-ecosystem functioning relationships inform how biodiversity loss impacts natural ecosystems?. JVeg Sci27 (3): 646-653.DOI: 10.1111/jvs.12399.
Xu W-B, Svenning J-C, Chen G-K, Zhang M-G, Huang J-H, Chen B, Ordonez A, Ma K-P. 2019. Human activities have opposing effects on distributions of narrow-ranged and widespread plant species in China. Proceedings of the National Academy of Sciences, 116(52), 26674–26681. https://doi.org/10.1073/pnas.1911851116
Most read articles by the same author(s)
- INOCENCIO E. BUOT JR., ANNE FRANCES V. BUHAY, Review: Types of socioecological production landscapes of the Philippines based on dominant biodiversity: status, problems and future directions , Biodiversitas Journal of Biological Diversity: Vol. 23 No. 7 (2022)
- REN DIVIEN R. OBENA, INOCENCIO Jr E BUOT, Enumeration of Hoya species in Mindanao Island, Philippines: Conservation concerns , Biodiversitas Journal of Biological Diversity: Vol. 20 No. 6 (2019)
- BERNARD PETER O. DAIPAN, INOCENCIO E. BUOT JR., HANNAH MARIEL O. DAIPAN, Comparative analysis of the leaf architectural characters of Saurauia bontocensis Merr. and Saurauia polysperma (Blanco) Merr. with the application of Digital Image Analysis Software , Biodiversitas Journal of Biological Diversity: Vol. 23 No. 8 (2022)
- ARAGON A. DECHIMO JR., INOCENCIO E. BUOT JR., Biophysical assessment of the plant biodiversity of Northern Negros Natural Park, Negros Island, Philippines , Biodiversitas Journal of Biological Diversity: Vol. 24 No. 1 (2023)
- PASTOR L. MALABRIGO JR., GERALD T. EDUARTE, DAMASA M. MACANDOG, LERMA SJ. MALDIA, NELSON M. PAMPOLINA, RACHEL C. SOTTO, INOCENCIO E. BUOT JR., Population survey and red list assessment of Kandelia candel (L.) Druce, a critically endangered mangrove species in the Philippines , Biodiversitas Journal of Biological Diversity: Vol. 24 No. 2 (2023)
- ELAINE LOREEN C. VILLANUEVA, REN DIVIEN R. OBEÑA, MARNE G. ORIGENES, INOCENCIO E. BUOT, JR, Vegetation structure of forests over limestone and its influencing environmental factors in Samar Island Natural Park, Philippines , Biodiversitas Journal of Biological Diversity: Vol. 23 No. 12 (2022)