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This study aimed to determine the species richness, biodiversity, and importance value of selected plants of different land uses in USTP Claveria Campus, Barangay Poblacion, Claveria, Misamis Oriental. Seven sample plots (land uses) comprising 70 sample points were established throughout the 65-ha campus for data collection. The measurement of biometrics and biomass of each plant were conducted to determine the species richness, diversity indices, absolute density, absolute density of each species, relative density of a species, dominance, relative cover, absolute frequency, relative frequency, and importance value of trees using the point-centered quarter method (PCQM). General findings revealed that the campus is rich in tree species (38). Importance values are high for Acacia mangium Willd. (Sites 1 and 6), Swietenia macrophylla King (Sites 2, 3, 4), Vitexparviflora Juss. (Site 5) and Schizolobium parahyba (Vell.) S.F. Blake (Site 7). Species diversity is high at Site 3 (3.27). This study generates a piece of essential information in the implementation relevant to the present and future development of the campus, valuation (i.e. Expanded Reducing Emissions from Deforestation and Forest Degradation), assessment (EIA), and accreditation (i.e. UI Green Metrics World University Ranking). [ABSTRACT FROM AUTHOR]

This study is a part of baseline data gathering for a short-term project in 12 barangays referred to as Quirino Forest Landscape (QFL). The study assessed trees' diversity, biophysical attributes, utilization values, and ecological importance. Quadrat sampling was performed to gather abundance and biometric data of trees with a diameter at breast height of 15 cm and greater. Data analysis employed alpha diversity indices, distance and similarity measures, carbon-based allometric equations, stand-stock table, and other tools. Secondary information and first-hand accounts were used to gather ecological and utilization values. Diversity was very high, highly heterogeneous, and very complex. Diffun was found to have the most contiguous tree assemblage; Cabarroguis and Aglipay share more species than Maddela and Diffun. Analysis of photographed canopies revealed mean canopy closure is 77.41%. Close to half of individual trees fall under 40 cm and 50 cm dbh classes, implying QFL as a secondary forest. Trees have aboveground stored Carbon of 642.87 tons/ha or 1.26 tons/tree. The area host five premium timbers, 10 Philippine Mahogany timbers, Rosewoods, 15 Furniture/Construction, and 95 underutilized species. Slightly more than a third (33.60%) of sampled canopy trees (43 species total) require conservation effort; White Lauan (Shorea contorta) is the most critical. To control further damage, measures to prevent further forest cover loss must be instituted to understand and sustain ecosystem functions. [ABSTRACT FROM AUTHOR]

This paper is preliminary part of a long-term and comprehensive monitoring of forest resources in Eden and Dibibi, Quirino Province. The general aim was to present various biodiversity values and functions of trees. Pilot quadrat sampling was used to yield preliminary data on canopy composition and undergrowth tree species. For purposes of the long-term assessment, canopy trees are those individuals having 20cm dbh and higher; undergrowth having <20cm dbh. Various indices were utilized to measure and compare forest strata, diversity, morphology and physiognomy. Species Importance Values and Carbon sequestration formulas were used to glean the functionality of canopy trees. Both forest sites resemble Tropical Lowland Evergreen- and Semi-Evergreen Rainforest formations. General diversity is moderate (H'Eden=2.65; H'Dibibi=2.26) and species composition is heterogeneous (βcc=0.745). At least 18.75% of canopy and undergrowth species are found endemic to the Philippines. Jaccard and Sorenson Indices on forests (collectively and individually) denote that canopy and undergrowth layers are dissimilar. Estimates of AGB and Carbon storage fall below the per-hectare figures given in authoritative literatures. The forests, have ecological and economic potentials. However, only species that abundant in number can be expected to be resilient to disturbances. Other observations can be used as bases for community-based rehabilitation and conservation. [ABSTRACT FROM AUTHOR]