Distribution, Diversity and Spatial Analysis of Tree Species in a Long-Term Ecological Research Plot in Molawin-Dampalit Watershed, Mount Makiling Forest Reserve

Castillo, Manuel; Castillo, Leilani A.; Canceran, Myranel S.; Gonzalvo, Karla Jane P.; Barua, Leonardo D.; Alegre, Aldin C.; Barredo-Parducho, Valeriana O.; Gestiada, E C; Breva, Rolly V.; Bantayan, Nathaniel C.

doi:10.7828/ajob.v9i1.1232

Cited by 8 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the species can be found in lowland Dipterocarp forests up to 1,000 masl (Randi et al 2019) and in lowland tropical rainforests at altitudes up to 1,300 masl in the Philippines (Abasolo et al 2009). The species has been identified as one of the dominant dipterocarp tree species, with an importance value of 8.878, in the Molawin-Dampalit Subwatershed of the MMFR (Castillo et al 2018;Tumaneng et al 2019). Moreover, a high species diversity index (3.52) in the Molawin-Dampalit Subwatershed was also reported, indicating that despite the presence of many plant competitors, P. malaanonan was able to dominate the area and adapt to the environment (Castillo et al 2018).…”

Section: Tree Species Descriptionmentioning

confidence: 98%

See 1 more Smart Citation

Leaf Traits of Parashorea malaanonan Along Elevational Gradient in Mount Makiling Forest Reserve, Philippines

Ebale,

Hernandez,

Tinio

2023

J. Sylva Lestari

View full text Add to dashboard Cite

Studying leaf trait variation and relationships along elevational gradients will enhance our understanding of how plants respond to changing environmental conditions. Thus, we analyzed the leaf traits variation in ecologically and economically important Parashorea malaanonan and the potential influence of environmental covariables (rainfall, relative humidity, and air temperature) on leaf traits along an elevational gradient in Mount Makiling Forest Reserve (MMFR). Three sampling sites were selected based on elevation, i.e., low (400–500 masl), mid (500–600 masl), and high (> 600 masl). The leaf samples were collected from seedlings, saplings, and adult trees of P. malaanonan. There was no significant variation in most of the measured leaf traits, leaf area (LA), specific leaf area (SLA), leaf thickness (LT), leaf length-to-width ratio (L:W) across sampling sites, except vein density (VD). The SLA and LT at high elevations are significantly and negatively correlated (r2 = 0.7396). The environmental covariables had a significant (p < 0.05) impact on the leaf traits of P. malaanonan. The observed variation in some leaf traits may have been influenced by the elevation gradient and its associated environmental conditions. Thus, P. malaanonan may have developed adaptive mechanisms to cope with the changing environment. Keywords: conservation, elevational gradients, environmental variables, leaf traits, Parashorea malaanonan

show abstract

Section: Tree Species Descriptionmentioning

confidence: 98%

“…Regarding species composition, the most dominant species in the said watershed is Diplodiscus paniculatus, followed by Celtis luzonica and Pinanga insignis. Further, it is notable that critically endangered species such as P. malaanonan and Diospyros blancoi were also present at the site (Castillo et al 2018).…”

Section: Study Site Description and Selectionmentioning

confidence: 99%

Leaf Traits of Parashorea malaanonan Along Elevational Gradient in Mount Makiling Forest Reserve, Philippines

Ebale,

Hernandez,

Tinio

2023

J. Sylva Lestari

View full text Add to dashboard Cite

show abstract

“…Based on our previous work, the importance value (IV) of T. philippinensis ranged from 45% to 67% in Lobo (Hernandez et al 2016). Although not the most dominant species, P. malaanonan was ranked among the top 10 tree species based on IV (Castillo et al 2015). The forest canopy in the Lobo site, with a daily mean light intensity of 1510-1800 lux during summer, is generally more open than in the MMFR, with a daily mean light intensity of 405-861 lux during summer.…”

Section: Study Site Descriptionmentioning

confidence: 99%

“…The MMFR and Lobo study sites have approximately 2500 trees ha -1 and 650 trees ha -1 , respectively. The average basal area (BA) of P. malaanonan was 3.76 m 2, whereas T. philippinensis has an average BA of 18.18 m 2 (Castillo et al 2015;Caringal et al 2019). The mean annual air temperature (MAT) and mean annual precipitation (MAP) in the MMFR site are 26°C and 1,307 mm, respectively.…”

Section: Study Site Descriptionmentioning

confidence: 99%

Litter Decomposition of a Deciduous Tectona philippinensis and an Evergreen Parashorea malaanonan Across Contrasting Sites

Hernandez,

Maldia,

Tinio

et al. 2024

J. Sylva Lestari

View full text Add to dashboard Cite

Litter traits and site conditions alter nutrient inputs from deciduous and evergreen forests by influencing litter decomposition processes. Here, we investigated the leaf and stem mass loss rate (MLR) of a deciduous (Tectona philippinensis) and an evergreen (Parashorea malaanonan) tree species and the factors influencing it through an intersite experiment and litterbag method in secondary forests in Lobo, Batangas and Mount Makiling Forest Reserve (MMFR). Variations in initial litter quality (leaf area, specific leaf area (SLA), leaf thickness, vein density), and site factors (light intensity and temperature) were assessed. P. malaanonan has a lower SLA and vein density than T. philippinensis. The leaf and stem MLR were significantly higher in the mixed litter (44.09–57.83%) than that of a single-species litter of either T. philippinensis (28.16–41.83%) or P. malaanonan (33.60–47.66%). The leaf MLR of T. philippinensis was greater when placed in Lobo (where the litter originated) than at a different site (i.e., MMFR). Moreover, leaf litter decomposition was faster in T. philippinensis than in P. malaanonan, particularly during the rainy season. Overall, the study showed that litter decomposition in deciduous and evergreen differed across sites due to variations in litter quality and environmental variables. Keywords: decomposability traits, home-field advantage (HFA), intersite experiment, litter quality, mass loss rate

show abstract

“…est in Baler, Aurora (H′ = 4.096; E = 0.9735) [18], in the Quezon Protected Landscape (H′ = 3.90, E = 0.81) [52], and in the Mt. Makiling Forest Reserve (H′ = 3.50, E = 0.91) [53]. The common characteristics that possibly caused these high values were their classifications as private property, with strict monitoring and considerably high protection for the site in the first study and being classified as protected areas under the law of the second and third study sites, relating to the monitoring and protection activities of the government.…”

Section: Tree Species Diversitymentioning

confidence: 99%

Tree Species Composition and Diversity in a Secondary Forest along the Sierra Madre Mountain Range in Central Luzon, Philippines: Implications for the Conservation of Endemic, Native, and Threatened Plants

Llait

2024

JZBG

View full text Add to dashboard Cite

The Sierra Madre Mountain Range (SMMR) is the backbone of the Luzon Islands that contains a high concentration of highly important ecological resources distributed among the 68 protected areas therewith. The present study aimed to assess the composition and diversity of tree species in a secondary forest within the SMMR. A 2.25 km transect with 10 900-m2 plots were established to record tree species with a diameter at breast height of at least 10 cm. The findings revealed 148 individuals of trees from 38 morphospecies, 28 genera, and 20 families. Importance values unveiled the Aurora endemic Macaranga stonei Whitmore as the most important species in terms of the relative values of its abundance, frequency, and dominance. The area was also found to be home to 33 natives, 12 endemics, five IUCN threatened species, and nine Philippine threatened trees. Furthermore, the study site was also found to have considerably high diversity, with a Shannon–Weiner Index value of 3.269 and a relatively even distribution of individuals among species, as supported by the Simpson’s Evenness index value of 0.9453. Significant correlational relationships were also found among species richness, Shannon–Weiner index, and Simpson’s Evenness index, with correlation coefficients ranging from 0.881 to 0.934, with all significant at p < 0.001. Lastly, the study was able to produce a distribution map, which is necessary for implementing targeted conservation strategies. These findings provided valuable implications for future research and implementation of targeted and participatory biodiversity conservation and protection strategies.

show abstract

Distribution, Diversity and Spatial Analysis of Tree Species in a Long-Term Ecological Research Plot in Molawin-Dampalit Watershed, Mount Makiling Forest Reserve

Cited by 8 publications

References 0 publications

Leaf Traits of Parashorea malaanonan Along Elevational Gradient in Mount Makiling Forest Reserve, Philippines

Leaf Traits of Parashorea malaanonan Along Elevational Gradient in Mount Makiling Forest Reserve, Philippines

Litter Decomposition of a Deciduous Tectona philippinensis and an Evergreen Parashorea malaanonan Across Contrasting Sites

Tree Species Composition and Diversity in a Secondary Forest along the Sierra Madre Mountain Range in Central Luzon, Philippines: Implications for the Conservation of Endemic, Native, and Threatened Plants

Contact Info

Product

Resources

About