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UPV Theses and Dissertations

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    Mangrove community structure survey in Barangay Guisi and Linayasan, Altavas, Aklan
    Bullo, Gliford G. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-04)
    The mangrove forest is a complex and unique community of medium to large tress, shrubs, vines and palms, oddly thriving with luxuriant growth in the least inviting habitats which have the barest and limited conditions for the growth and survival of higher plant life. This study aims to assess the community structure of mangroves in Barangay Guisi and Linayasan, Altavas, Aklan using accepted ecological indicators. The sampling site, Altavas, Aklan is located at the upper median of Panay Island. There was a total of 15 true mangrove species belonging to the 9 families in the area. The nine families are Family Myrsinaceae represented by Aegiceras corniculatum, Family Avicenniaceae represented by Avicennia alba, Avicennia marina, Avicennia officinalis and Avicennia rumphiana; Family Rhizophorceae represented by Rhizophora apiculata, Rhizophora mucronata, Bruguiera gymnorrhiza and Bruguiera parviflora; Family Bombacaceae represented by Camptostemon phihppensis; Family Rubiaceae represented by Scyphiphora hydrophylaceae; Family Meliaceae represented by Xylocarpus granatum and Family Palmae represented by Nypa fruticans. Avicennia rumphiana has the highest mean basal area of 23.21 (m2/ha), while Xylocarpus granatum had the lowest mean basal area of 0.01 (m2/ha). Avicennia rumphiana has the highest relative density of 57, while Xylocarpus granatum has the lowest relative density with a value of 1. Avicennia rumphiana and Avicennia officinalis had the highest relative frequency of 19.8667 Aegiceras corniculatum, Excoecaria agallocha, Scyphtphora hydrophylaceae and Xylocarpus grunatum on the other hand had the lowest relative frequency of 0.4. Avicennia rumphiana is the dominant species with a relative dominance value of 23.66, and Xylocarpus granatum is the least dominant species with relative dominance value of 0.01. Avicennia rumphiana is the most important species in the area with an importance value of 127.1816, and the least important species, as observed, is Xylocarpus granatum with an importance value of 1.685863. The index of diversity is 0.918655 for the entire area.
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    Willingness-to-pay for the conservation of Bucari Pine Forest in Leon, Iloilo
    Anaquita, Argena Hera E.; Santos, Jose Maria D. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2016-06)
    The Bucari Pine Forest has provided the municipality of Leon in Iloilo Province with both economic and environmental benefits. However, due to development plans, the Bucari Pine Forest has become vulnerable to degradation. This study estimated the willingness-to-pay of the residents of Leon, Iloilo for the conservation of the Bucari Pine Forest using the Contingent Valuation Method. The study participants were 320 local residents from eight (4 upland, 4 lowland) barangays of Leon, Iloilo. The final data collection was conducted in January 2016 to March 2016. Seventy-five percent of the study participants were willing to pay for the conservation of Bucari Pine Forest. The calculated mean WTP of the study participants with adjustment to the level of certainty was P3 3 5.00 per year or P27.92 per month. The factor that significantly affected the willingness-to-pay of the study participants was the bid price. This means that the higher the bid price, the less likely the study participant was willing to pay for the conservation of the Bucari Pine Forest. The information in this study can be used by local policy makers in drafting conservation policies and provide awareness on the importance of the conservation of the Bucari Pine Forest.