Floristic composition, structure, and diversity of mangroves in the coastal areas of Mabini, Davao de Oro, Philippines

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ALEXA MAE B. MANUAL
NEIL ALDEN S. GABATO
QUEZZEY B. JETUYA
JEMER A. ALIMBON
https://orcid.org/0000-0002-4328-0482

Abstract

Abstract. Manual AMB, Gabato NAS, Jetuya QB, Alimbon JA. 2022. Floristic composition, structure, and diversity of mangroves in the coastal areas of Mabini, Davao de Oro, Philippines. Biodiversitas 23: 4887-4893. Biodiversity and stand structure assessments of mangrove communities are important for their management and conservation. However, this aspect of mangrove ecology in the Davao Gulf is not yet fully explored, particularly in the coastal areas of Mabini, Davao de Oro, Philippines, despite being proclaimed as a protected area. Hence, this study assessed the species composition, structure and diversity of mangroves in the coastal areas of Mabini, Davao de Oro, Philippines. Using the belt transect method, 35 plots with 10 m x 10 m each were established and surveyed. Results revealed that the area is home to eight species belonging to six genera and five families. One vulnerable species, Avicennia rumphiana, was recorded on the study site. Of the identified species, Rhizophora apiculata was the most important species, with an importance value index of 144.41 %. Meanwhile, the surveyed mangrove communities had a mean diameter at breast height of 10.96 cm, a basal area of 27.93 m² ha?¹, and a mean density of 4192 stems ha?¹. Diversity analysis indicated that the sampled sites had low species biodiversity (H’ = 1.098), low species richness (R = 0.9601), and less even species distribution (J = 0.5280). These results add to the existing knowledge about mangrove communities in Davao Gulf. More importantly, they serve as important baseline information relevant to the management, protection, and conservation of mangroves within the Mabini Protected Landscape and Seascape.

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References
Abino AC, Castillo JAA, Lee YJ. 2014. Species diversity, biomass, and carbon stock assessments of a natural mangrove forest in Palawan, Philippines. Pak J Bot 46: 1955-1962.
Afonso F, Félix PM, Chainho P, Heumüller JA, de Lima RF, Ribeiro F, Brito AC. 2021. Assessing ecosystem services in mangroves: Insights from São Tomé Island (Central Africa). Front Environ Sci 9: 501673. DOI: 10.3389/fenvs.2021.501673
Alimbon JA, Manseguiao MRS. 2021. Species composition, stand characteristics, aboveground biomass, and carbon stock of mangroves in Panabo Mangrove Park, Philippines. Biodiversitas 22: 3130-3137. DOI: 10.13057/biodiv/d220615
Bettinger P, Boston K, Siry JP, Grebner DL. 2017. Valuing and characterizing forest conditions. In: Forest Management and Planning. Elsevier. DOI: 10.1016/b978-0-12-809476-1.00002-3
Biodiversity Management Bureau, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH. 2017. Manual on Biodiversity Assessment and Monitoring System for Terrestrial Ecosystems. GIZ, Manila.
Cañizares LP, Seronay RA. 2016). Diversity and species composition of mangroves in Barangay Imelda, Dinagat Island, Philippines. AACL Bioflux 9: 518-525.
Cardillo J, Novero AU. 2018. Assessment of mangrove diversity in Santa Cruz, Davao del Sur, Philippines. J Biodivers Environ Sci 14: 53-62.
Cudiamat MA, Rodriguez RA. 2017. Abundance, structure and diversity of mangroves in a community-managed forest in Calatagan, Batangas, Verde Island Passage, Philippines. Asia Pac J Multidiscip Res 5: 27-33.
Dangan-Galon F, Dolorosa RG, Sespene JS, Mendoza NI. 2016. Diversity and structural complexity of mangrove forest along Puerto Princesa Bay, Palawan Island, Philippines. J Mar Isl Cult 5: 118-125. DOI: 10.1016/j.imic.2016.09.001
Department of Environment and Natural Resources Administrative Order No. 11. 2017. Updated national list of threatened Philippine plants and their categories.
English S, Wilkinson C, Baker V. 1997. Survey manual for tropical marine resources (2nd ed.). Australian Institute of Marine Science, Townsville.
Forestry Management Bureau. 2002. 2002 Philippine forestry statistics.
Forestry Management Bureau. 2014. 2014 Philippine forestry statistics.
Forestry Management Bureau. 2020. 2020 Philippine forestry statistics.
Galerio LP, Martinez CP. 2009. Profile of mangrove forest along Davao Gulf, Tagum City. Southeast Philipp J Res Dev 18: 27-37.
Garcia KB, Malabrigo PL, Gevaña DT. 2014. Philippines’ mangrove ecosystem: status, threats and conservation. In: Faridah-Hanum I, Latiff A, Hakeem KR, Ozturk M (eds) Mangrove Ecosystems of Asia. Springer, New York.
Goloran AB, Demetillo MT, Betco GL. 2020. Mangroves assessment and diversity in coastal area of Barangay Cagdianao, Claver, Surigao Del Norte, Philippines. Int J Environ Sci Nat Res 26: 69-77. DOI: 10.19080/IJESNR.2020.26.556188
Hammer O, Harper D, Ryan P. 2001. PAST: Paleontological statistics software package for education and data analysis. Palaeontol Electron 4: 9
Hossain, M. 2015. Handbook of selected plant and species of the Sundarbans and the embankment ecosystem. Sustainable Development and Biodiversity Conservation in Coastal Protection Forests, Bangladesh (SDBC-Sundarbans) Project implemented by the Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH on behalf of the German Federal Ministry for Economic Cooperation and Development (BMZ), Dhaka
International Union for the Conservation of Nature. 2021. The IUCN Red List of Threatened Species. Version 2021-3. www.iucnredlist.org
Jumawan J, Flores FL, Aragon RT, Villamor JMC, Sagot JC, Taguse, HC, Genecera J, Banas GG, Depamaylo AMV. 2015. Diversity assessment and spatial structure of mangrove community in a rehabilitated landscape in Hagonoy, Davao del Sur, Philippines. AES Bioflux 7: 475-482.
Kadaverugu R, Dhyani S, Dasgupta R, Kumar P, Hashimoto S, Pujari P. 2021. Multiple values of Bhitarkanika mangroves for human well-being: synthesis of contemporary scientific knowledge for mainstreaming ecosystem services in policy planning. J Coast Conserv. DOI: 10.1007/s11852-021-00819-2
Kathiresan K, Bingham BL. 2001. Biology of mangroves and mangrove ecosystems. Adv Mar Biol 40: 81-251.
Lebata-Ramos M. 2013. Field guide to mangrove identification and community structure analysis. SEAFDEC Aquaculture Department, Iloilo, Philippines.
Lozano EB, Bueno RG. 2015. Species composition, diversity and stand structure of mangroves in Olango Island Wildlife Sanctuary, Cebu, Philippines. CNU J High Educ 9: 28-38.
Long J, Napton D, Giri C, Graesser, J. 2014. A mapping and monitoring assessment of the Philippines' mangrove forests from 1990 to 2010. J Coast Res 30: 260-271. DOI: 10.2112/JCOASTRES-D-13-00057.1
Matatula J, Afandi AY, Wirabuana PYAP. 2021. Short communication: A comparison of stand structure, species diversity and aboveground biomass between natural and planted mangroves in Sikka, East Nusa Tenggara, Indonesia. Biodiversitas 22: 1098-1103. DOI: 10.13057/biodiv/d220303
Patindol T, Casas Jr E. 2019. Species diversity and composition of mangroves in Tacloban City, Philippines. Ann Trop Res 41: 67-75. DOI: 10.32945/atr4126.2019
Pototan BL, Capin NC, Tinoy MRM, Novero AU. 2017. Diversity of mangrove species in three municipalities of Davao del Norte, Philippines. AACL Bioflux 10: 1569-1579.
Pototan BL, Capin NC, Delima AGD, Novero AU. 2021. Assessment of mangrove species diversity in Banaybanay, Davao Oriental, Philippines. Biodiversitas 22: 144-153. DOI: 10.13057/biodiv/d220120
Proclamation No. 316. 2000. Declaring the Pindasan Island Mangrove Wilderness Area, Kopiat Island and surrounding portions of Davao Gulf situated in the municipality of Mabini, province of Davao del Norte as a protected area pursuant to RA 7586 (NIPAS Act of 1992) and shall be known as Mabini Protected Landscape and Seascape. https://www.officialgazette.gov.ph/2000/05/31/proclamation-no-316-s-2000/
Primavera JH. 2000. Development and conservation of Philippine mangroves: Institutional issues. Ecol Econ 35: 91-106. DOI: 10.1016/S0921-8009(00)00170-1
Primavera JH. 2009. Field guide to the Philippine mangroves. Philippine Tropical Forest Conservation Foundation, Inc. and Zoological Society of London, UK.
Samson JJ, Tobias EG. 2015. Status of mangroves in Naawan, Misamis Oriental and prospects for vegetative expansion. J. Environ Aquat Resour 3: 102-112. DOI: 10.48031/msunjear.2015.03.10
Sharma S, Nadaoka K, Nakaoka M, Uy WH, MacKenzie RA, Friess DA, Fortes MD. 2017. Growth performance and structure of a mangrove afforestation project on a former seagrass bed, Mindanao Island, Philippines. Hydrobiol 803: 359-371. DOI: 10.1007/s10750-017-3252-x
Wang L, Jia M, Yin D, Tian J. 2019. A review of remote sensing for mangrove forests: 1956–2018. Remote Sens Environ 231: 111223. DOI: 10.1016/j.rse.2019.111223