Quantifying Arborescent Flora Diversity in a Secondary Forest Ecosystem: A Comprehensive Assessment in Nambalan, Mayantoc, Tarlac, Philippines — Oak Academic Publishing
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Quantifying Arborescent Flora Diversity in a Secondary Forest Ecosystem: A Comprehensive Assessment in Nambalan, Mayantoc, Tarlac, Philippines
College of Agriculture and Forestry, Tarlac Agricultural University, Camiling, Philippines
,
College of Agriculture, Forestry and Environmental Sciences, Aklan State University, Banga, Philippines
,
College of Agriculture and Forestry, Tarlac Agricultural University, Camiling, Philippines
1 College of Agriculture and Forestry, Tarlac Agricultural University, Camiling, Philippines
2 College of Agriculture, Forestry and Environmental Sciences, Aklan State University, Banga, Philippines
3 College of Agriculture and Forestry, Tarlac Agricultural University, Camiling, Philippines
Forest plays a crucial role in providing essential ecosystem services, including water supply, climate regulation, and biodiversity conservation. This study aimed to assess the current state of the forest in Barangay Nambalan, Mayantoc, Tarlac. The specific objectives were to identify tree species in the area and determine the tree diversity index, with a focus on endemism and conservation status. Two transect lines, each spanning one kilometer, were established and a total of 10 sampling quadrats were surveyed. Ecological parameters (relative frequency, relative density, relative dominance, and importance value index) and diversity indices (Shannon-Weiner index, Simpson’s index) were computed using the Paleontological Statistic Software Package for Educational Analysis (PAST 4.03). A comprehensive inventory revealed a total of 756 individuals representing 52 species, 46 genera, and 25 families. Among the recorded species, 10 (17.2%) were endemic and 11 (21.6%) were classified as threatened. The Fabaceae (20.8%), Moraceae (14.6%), and Euphorbiaceae (8.3%) were identified as the most abundant families. The computed diversity indices indicated that Barangay Nambalan retains a diverse forest cover; however, species composition was found to be relatively low. Based on the finding, this study recommends the strict enforcement of protective measures and legislation to mitigate further degradation of the remaining forest in Barangay Nambalan.
KeywordsForest DiversityTree SpeciesEndemismConservation StatusTransect SurveyDiversity Indices
Raji, I.A. and Babalola, F.D. (2018) Assessment of Tree Diversity and Abundance in University of Ilorin Campus: Towards Conservation. Proceedings of 6th NSCBBiodiversity Conference, Uniuyo, 2018, 443-450.
Coracero, E., Urriza, H. and Foster, P.G. (2021) Species Composition and Diversity: Baseline for Tree Conservation at Laguna State Polytechnic University, San Pablo, Philippines. International Research Journal of Advanced Science, 2, 10-16.
Holmgren, J. and Persson, A. (2003) The Future of the World’s Forests: Ideas vs. Ideals. Ambio, 32, 541-548.
Coracero, E.E. and Malabrigo Jr., P.L. (2020) Diversity Assessment of Tree Species in Sitio Dicasalarin, Barangay Zabali, Baler, Aurora, Philippines. Open Journal of Ecology, 10, 717-728. https://doi.org/10.4236/oje.2020.1011043
Cabansag, J.B.C. (2016) Biodiversity Conservation in the Philippines: Challenges, Prospects and Policy Directions. Philippine Science Letters, 9, 1-9.
Global Forest Watch (2022) Tree Cover Loss by Country. Global Forest Watch. https://www.globalforestwatch.org/
Huston, M.A. (2014) Disturbance, Productivity and Species Diversity: Empiricism versus Logic in Ecological Theory. Ecology, 95, 2382-2396. https://doi.org/10.1890/13-1397.1
Chao, A., Chazdon, R.L., Colwell, R.K. and Shen, T. (2005) A New Statistical Approach for Assessing Similarity of Species Composition with Incidence and Abundance Data. Ecology Letters, 8, 148-159. https://doi.org/10.1111/j.1461-0248.2004.00707.x
Baraloto, C., Paine, C.E.T., Poorter, L., Beauchene, J., Bonal, D., Domenach, A.M., Herault, B., Patiño, S., Roggy, J.C. and Chave, J. (2012) Decoupled Leaf and Stem Economics in Rain Forest Trees. Ecology Letters, 15, 887-895.
Garcia-Guzman, G., Meave, J.A., Moreno, C.E., Martinez-Ramos, M. and Gallardo-Cruz, J.A. (2017) Determinants of Tree Species Distribution and Diversity at Regional Scales in a Mexican Tropical Dry Forest. PLOS ONE, 12, e0184410.
Quesada, C.A., Lloyd, J., Schwarz, M., Patiño, S., Baker, T.R., Czimczik, C. and Gloor, M. (2011) Variations in Chemical and Physical Properties of Amazon Forest Soils in Relation to Their Genesis. Biogeosciences, 8, 732-755.
Gibson, L., Lee, T.M., Koh, L.P., Brook, B.W., Gardner, T.A., Barloe, J. and Sodhi, N.S. (2011) Primary Forests Are Irreplaceable for Sustaining Tropical Biodiversity. Nature, 478, 378-381. https://doi.org/10.1038/nature10425
Diaz, S., Lavorel, S., Mclntyre, S., Falczuk, V., Casanoves, F., Milchunas, D.G. and Quetier, F. (2007) Plant Trait Responses to Grazing-A Global Synthesis. Global Change Biology, 13, 313-341. https://doi.org/10.1111/j.1365-2486.2006.01288.x
Laurence, W.F., Andrade, A., Magrach, A., Camargo, J.L., Campbell, M., Fearnside, P.M. and Lovejoy, T.E. (2012) Apparent Environmental Synergism Drives the Dynamics of Amazonian Forest Fragments. Ecology, 93, 1764-1769.
Kanieski, R., Longhi, S. and Soares, P. (2017) Methods for Biodiversity Assessment: Case Study in an Area of Atlantic Forest in Southern Brazil. Selected Studies in Biodiversity. InTech. https://doi.org/10.5772/intechopen.71824
MEA (Millenium Ecosystem Assessment) (2005) Ecosystems and Human Well-Being: Synthesis. Island Press, Washington DC.
Ludwig, J.A. and Reynolds, J.F. (1988) Statistical Ecology: A Primer on Methods and Computing. Wiley, New York, 337.
Aureo, W.A., Jr Reyes, T.D., Mutia, F.C.U., Tandang, D.N. and Jose, R.P. (2021) Floristic Composition and Community Structure along the Elevation Gradient of Balinsasayao Twin Lakes Natural Parkin Nergros Oriental, Philippines. One Ecosystem, 6, e56536. https://doi.org/10.3897/oneeco.5.e56536
Ganivet, E. and Bloomberg, M. (2019) Towards Rapid Assessments of Tree Species Diversity and Structure in Fragmented Tropical Forests: A Review of Perspectives Offered by Remotely Sensed and Field-Based Data. Forest Ecology and Management, 432, 40-53. https://doi.org/10.3897/oneeco.5.e56536
Cardinale, B.J., Duffy, J.E., Gonzales, A., Hooper, D.U., Perrings, C., Venail, P., et al. (2012) Biodiversity Loss and Its Impact on Humanity. Nature, 486, 59-67. https://doi.org/10.1038/nature11148
Adams, W.M., Aveling, R., Brockington, D., Dickson, B., Elliott, J., Hutton, J., Roe, D., Vira, B. and Wolmer, W. (2004) Biodiversity Conservation and the Eradication of Poverty. Science, 306, 1146-1149. https://doi.org/10.1126/science.1097920
Timan, D., Isbell, F. and Cowles, J.M. (2014) Biodiversity and Ecosystem Functioning. Annual Review of Ecology, Evolution and Systematics, 45, 471-493. https://doi.org/10.1146/annurev-ecolsys-120213-091917
Isbell, F., Craven, D., Connolly, J., Loreau, M., Schmid, B., Beierkuhnlein, C. and Vab Ruijven, J. (2013) Biodiversity Increases the Resistance of Ecosystem Productivity to Climate Extremes. Nature, 494, 249-252.
Joppa, L.N., O’Connor, B., Visconti, P., Smith, C., Geldmann, J., Hoffmann, M., et al. (2016) Filling in Biodiversity Threat Gaps. Science, 352, 416-418. https://doi.org/10.1126/science.aaf3565
Seddon, P.J., Griffiths, C.J., Soorae, P.S. and Armstrong, D.P. (2014) Reversing Defaunation: Restoring Species in a Changing World. Science, 345, 406-412. https://doi.org/10.1126/science.1251818
Oldekop, J.A., Holmes, G., Harris, W.E. and Evans, K.L. (2019) A Global Assessment of the Social and Conservation Outcomes of Protected Areas. Nature Sustainability, 2, 452-459.
Gadgil, M., Berkes, F. and Folke, C. (1993) Indigenous Knowledge for Biodiversity Conservation. Ambio, 22, 151-156.
PhilAtlas (2022) Nambalan Municipality of Mayantoc, Province of Aklan. PhilAtlas. https://www.philatlas.com/luzon/r03/tarlac/mayantoc/nambalan.html
Lillo, E.P., Fernando, E.S. and Lillo, M.R. (2021) Plant Diversity and Structure of Forest Habitat Types on Dinagat Island, Philippines. Journal of Asia-Pacific Biodiversity, 12, 83-105. https://www.ukdr.uplb.edu.ph/journal-articles/770 https://doi.org/10.1016/j.japb.2018.07.003
Co’s Digital Flora of the Philippines (2020) https://www.philippineplants.org/
International Plant Names Index (IPNI) (2016) https://www.ipni.org/
(2019) Flora Malesiana. Naturalis Biodiversity Center, Leiden.
Merrill, E.D. (1922) An Enumeration of Philippine Flowering Plants. Bureau of Printing, Manila. https://doi.org/10.5962/bhl.title.49412
International Union for Conservation of Nature (IUCN) (2021) The IUCN Red List of Threatened Species. IUCN. https://www.iucnredlist.org/
Galindon, J., Pasion, B., Tongco, M.D., Fidelino, J., Duya, M.R. and Ong, P. (2017) Plant Diversity Patterns in Remnant Forests and Exotic Tree Species-Based Reforestation in Active Limestones Quarries in the Luzon and Mindanao Biogeographic Sub-regions in the Philippines. Ecological Research, 33, 63-72. https://doi.org/10.1007/s11284-017-1533-5
Van der Ent, A., Repin, R., Koller, B., Delang, C.O. and Sterck, F.J. (2013) Tree Communities of Ultramafic Forests in Sabah (Malaysia). Plant Ecology and Evolution, 146, 292-305.
Wang, W.Q., Wang, Y.J. and Zhang, J.L. (2010) Germination Characteristics of 29 Leguminous Plants. Acta Prataculture Sinica, 19, 230-238.
Lomascolo, S.B., Schor, A. and Fernandez, M. (2010) Birds and Bats as Seed Dispersers of Fleshy-Fruited Plants in a Natural Reforestation area in South Brazil. Brazilian Journal of Biology, 70, 581-587.
Cruz, L.E., Ibanez, N.N., Sajise, A.J. and Vinuya, F.M. (2018) Floristic Composition and Diversity of Minalungao National Park, Nueva Ecija, Philippines. Asia Journal of Biodiversity, 9, 159-177.
Krebs, C.J. (1999) Ecological Methodology. Benjamin-Cummings, San Francisco.
Dela Cruz, E.G., GojoCruz, P.H.N., David, E.S., Abella, E.A. and Cruz, K.G.J. (2018) First Report of Tree Species of Minalugao National Park, Nueva Ecija, Philippines. Journal of Biodiversity and Environmental Sciences (KBES), 13, 56-62. http://www.innspub.net
Raga-as, M.L., Saladar, R.L., Calaguio, J.C., Tano, R.L. and Unlayao, G.M.C. (2022) Assessment of Physical Characteristics of Bugang River Watershed in Pandan, Antique, Philippines. Open Journal of Ecology, 12, 360-376. https://doi.org/10.4236/oje.2022.126021
Umali, A.A., Malabrigo, P.L. and Replan, E.L. (2018) Floral Diversity and Habitat Assessment at Mt. Malarayat Brgy. Malitlit, Lipa City, Batangas. Ecosystems & Development Journal, 8, 3-14.
Tano, R.T. (2023) Effect of Pre-Sowing Treatments on Mamalis (Pittosporum pentandrum Blanco Merr.) Seeds Germination under Nursery Condition. Open Journal of Ecology, 13, 106-118. https://doi.org/10.4236/oje.2023.132009
Mclntosh, R.P. (1967) The Species Diversity Gradient and the Distribution of Higher Taxa. Ecology, 48, 648-656.
Guiang, E.S. (2001) Efficacy of Removing Natural Forest from Timber Production as a Strategy for Conserving Forests in the Philippines. In: Durst, P., Waggener, T., Enters, T. and Cheng, T., Eds., Forests Out of Bounds: Impacts and of Logging Ban in Natural Forests in Asia-Pacific, FAO.
Baker, A.J.M., MacGrath, S.P., Reeves, R.D. and Smith, J.A.C. (2000) Metal Hyperaccumulator Plants: A Review of the Ecology and Physiology of a Biological Resource for Phytoremediation of Metal-Polluted Soils. In: Terry, N. and Bañuelos, G.S., Eds., Phytoremediation of Contaminated Soil and Water, Taylor and Francis, Abingdon-on-Thames.
Cordova, L.V., Malabrigo, P.L., Tiburan, C.L., DeGuia, A.O., Labatos, B.V., Balatibat, J.B., Umali, A.A., Pantau, K.V., Eduarte, G.T., Tobias, A.B., Evasco, J.J. and Divina, A.N. (2019) Assessment Study for New Clark City. Project No. 50, Pro-Seeds Development Association Inc., Los Baños.
Wibowo, A.M., Suharti, A.P.S., Sagala, H., Hibani, H. and Van Noordwijk, M. (1997) Fire Management on Imperata Grasslands as Part of Agroforestry Development in Indonesia. Agroforestry Systems, 36, 203-217. https://doi.org/10.1007/BF00142874
Amoroso, V.B., Laraga, S.H. and Calzada, B.V. (2011) Diversity and Assessment of Plants in Mt. Kitanglad Range, Natural Park, Bukidnon, Southern Philippines. Garden’s Bulletin Singapore, 63, 219-236.
Alberto, A.P. and Cabutaje, A.P. (2018) Plant Diversity Assessment in The Ecotone Ecosystem of Sitio Bulac, Barangay General Luna, Carranglan, Nueva, Ecija, Philippines. Asia Journal of Biodiversity, 9, 37-51. https://doi.org/10.7828/ajob.v9i1.1233
Hodabalo, P., Kperkouma, W., Thomas, T., Balinga, M., Bessieke, Z., Dourma, M., Batawila, K. and Akpagaca, K. (2013) Woody Species Diversity and IVI in Dense Dry Forests in Abdoulaye Wildlife Reserve (Togo, West Africa). International Journal of Biodiversity and Conservation, 5, 358-366.
Malabrigo, P.L.Jr., Tobias, A.B. and Boncodin, J.C. (2018) FloristicComposition, Vegetation Structure, and Diversity Pattern of Mt. Calavite Wildlife Sanctuary: Basis for Management and Conservation Planning. Ecosystems & Development Journal, 8, 3-27.
De Castro, M., Carandang, J.S. and Agoo, E. (2020) Floristic study of an Ultramafic Formation in Sitio Magarwak, Sta. Lourdes, Puerto Princesa City, Palawan Island, Philippines. Biodiversitas Journal of Biological Diversity, 21, 3769-3779. https://doi.org/10.13057/biodiv/d210844