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Aswan University Journal of Environmental Studies
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Samson, M., De La Cruz, M., Gonzaga, L., Gomez, E., Barbosa, R. (2022). Diversity assessment and geospatial mapping of mangroves in Matalom, Leyte, Philippines. Aswan University Journal of Environmental Studies, 3(3), 324-336. doi: 10.21608/aujes.2022.145108.1072
Ma. Brenda Samson; Marylen De La Cruz; Lake Therese Gonzaga; Eirene Jude Gomez; Ruel Barbosa. "Diversity assessment and geospatial mapping of mangroves in Matalom, Leyte, Philippines". Aswan University Journal of Environmental Studies, 3, 3, 2022, 324-336. doi: 10.21608/aujes.2022.145108.1072
Samson, M., De La Cruz, M., Gonzaga, L., Gomez, E., Barbosa, R. (2022). 'Diversity assessment and geospatial mapping of mangroves in Matalom, Leyte, Philippines', Aswan University Journal of Environmental Studies, 3(3), pp. 324-336. doi: 10.21608/aujes.2022.145108.1072
Samson, M., De La Cruz, M., Gonzaga, L., Gomez, E., Barbosa, R. Diversity assessment and geospatial mapping of mangroves in Matalom, Leyte, Philippines. Aswan University Journal of Environmental Studies, 2022; 3(3): 324-336. doi: 10.21608/aujes.2022.145108.1072

Diversity assessment and geospatial mapping of mangroves in Matalom, Leyte, Philippines

Article 6, Volume 3, Issue 3, October 2022, Page 324-336  XML PDF (671.21 K)
Document Type: Original Research
DOI: 10.21608/aujes.2022.145108.1072
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Authors
Ma. Brenda Samson email orcid 1; Marylen De La Cruz2; Lake Therese Gonzaga2; Eirene Jude Gomez3; Ruel Barbosa4
1Research Unit, Faculty, Philippine Science High School - Eastern Visayas Campus, Philippines
2Philippine Science High School - Eastern Visayas Campus, Philippines
3Philippine Science High School - Eastern Visayas Campus
4Biology Unit, Faculty, Philippine Science High School - Eastern Visayas Campus, Philippines
Abstract
Eastern Visayas abounds with mangrove forests which serve as bioshields to coastal communities and habitats. However, many mangrove assessments are confined to parts of the region severely damaged from typhoons, thereby rendering little information to southern areas like Matalom. This study assessed the abundance, structure, and diversity of the mangroves along the coast of Barangays Sta. Fe and Cahagnaan, Matalom, Leyte, Philippines through the Transect Line-Plot method. Spatial distribution was determined through the use of GIS. Results revealed that the study area, covering a total of 39.82 hectares, has a low diversity (H'=1.2456) with seven mangrove species belonging to four families. Rhizophoraceae is the most represented family with a total of three species. Sonneratia ovata, was classified as Near Threatened in the IUCN Red List. Analysis of the gathered data showed that Rhizophora mucronata had the highest relative frequency and Avicennia marina had the highest relative dominance; while Bruguiera sexangula had the lowest value in both fields. Furthermore, no defined zonation pattern was observed as the species were scattered homogeneously in the site. Overall, habitat assessment of the sampling area revealed that the mangroves had an excellent regeneration potential in terms of density of young plants, with a capacity of 300%, and an average tree height of 4.285m, thus constituting a good forest condition. Such findings indicate the need for conservation programs not only for maintaining its good forest condition but also in alleviating the community's low diversity level for a more stable mangrove ecosystem in the long run.
Keywords
mangroves; geospatial mapping; diversity; Philippines
Main Subjects
Environmental management
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