Diversity and composition of plant species in the forest over limestone of Rajah Sikatuna Protected Landscape, Bohol, Philippines

Aureo, Wilbert A.; Reyes, Tomas D.; Mutia, Francis Carlo; Jose, Reizl P.; Sarnowski, Mary Beth

doi:10.3897/bdj.8.e55790

Cited by 11 publications

(8 citation statements)

References 10 publications

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“…Presence of listed threatened and endemic species should use as reminder even on small remnant forest because they were still impact on level of biodiversity Galidon et al (2017). The forest over limestone were considered as home for many endemic species because of their unique environmental conditions (eg., saline soil properties, dry environment and shallow soil parent materials, which allowed for the evolution of limestone adapted species Querejeta et al (2007); Fernando et al (2008); Liu et al (2014) Aureo et al (2020. Thus, appropriate management and monitoring strategies to ensure the continued survival of its population as well as other threatened species should be developed.…”

Section: Discussionmentioning

confidence: 99%

Floristic Assessment of the Mt. Bandila-an Forest Reserve in Siquijor, Philippines

Aureo¹,

Reyes²,

Jose³

2021

Preprint

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Mt. Bandila-an Forest Reserve is among the remaining areas with patches of closed forests in Siquijor. This forest reserve is one of the potential key biodiversity areas in Central Visayas, yet the vegetation is not fully documented. This study was conducted to specifically determine the species composition and diversity of plant species. Eight randomly distributed nested plots, each with a dimension of 20m x 100m and subdivided to 5 equal segments of 20m x 20m, were established. A total of 188 species of plants were recorded in the plots, distributed to 131 trees, 23 shrubs, 14 vines, 11 herbs, and 9 ferns. Common plant families with more than 6 representative species were Moraceae, Rubiaceae, Fabaceae, Araceae, Euphorbiaceae, Meliaceae and Myrtaceae. There were 19 threatened (vulnerable to critically endangered) and 33 endemic species recorded in the forest reserve highlighting the importance to further conserve the area. The cluster analysis and species accumulation curve suggest that plant species are not homogeneously distributed which implies that different management and conservation strategies should be implemented across MBFR. These results not only indicate the importance of MBFR but also highlights areas with higher diversity and concentration of threatened and endemic species as a special area of concern.

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Section: Discussionmentioning

confidence: 99%

Floristic Assessment of the Mt. Bandila-an Forest Reserve in Siquijor, Philippines

Aureo¹,

Reyes²,

Jose³

2021

Preprint

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“…A greater value of the Shannon-Weiner Diversity index (H') indicates a higher species diversity. A computed result of the Shannon -Wiener Diversity Index (H') was interpreted using the modified Fernando Biodiversity Scaling System (Fernando 1998) as cited by Aureo et al (2020) where diversity levels 3.50 -4.00, 3.00 -3.49, 2.50 -2.99, 2.00 -2.49, and 1.99 and below was interpreted as very high, high, moderate, low, and very low respectively. Plant species evenness was estimated using Pielou's index (Pielou, 1966;Sintayehu et al, 2020):…”

Section: Data and Statistical Analysismentioning

confidence: 99%

Diversity and Aboveground Carbon Stocks of Trees and Understorey Plant Species in Matalom, Leyte, Philippines

Gumela,

Lantajo,

Bobon-Carnice

2023

JTBC

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The biggest threats to plant species degradation must be the cutting of trees, conversion into croplands, and natural circumstances. Degradation of land cover has negatively affected plant diversity before the carbon stocks. This study utilized a stratified random sampling technique and allometric equation to determine the plant species, diversity level, and aboveground carbon stocks of trees and understorey found in Matalom, Leyte, Philippines. Results showed thirteen (13) trees and forty-nine (49) understorey species were present in the sampling area. The abundance of species or the total number of individuals per species of trees and understorey is 98 and 2814 respectively. For the diversity index, the result was led by tree species, then understorey species, respectively 1.76, interpreted as very low, and 2.83, which is moderate based on the Modified Fernando Biodiversity Scale. The species evenness, 0.69 and 0.73, was led by understorey plant species. Both signify unequal distribution of plant species in the study area. Moreover, tree species have a higher carbon stock of 34.15 t C haˉ¹ compared to understorey, contributing about 0.03 t C haˉ¹. There are significant differences in the diversity and c-stocks between trees and understorey plant species based on independent t-test results.

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“…RSPL is a protected and Key Biodiversity Area (KBA) (Fig. 1) characterized mainly by forested limestone hills, grasslands and natural springs in the island province of Bohol in Central Visayas, Philippines (Aureo et al 2020; Key Biodiversity Areas Partnership 2022). It is the largest remaining tract of natural forest in Bohol, with an average elevation of 400 meters above sea level (masl).…”

Section: Study Areamentioning

confidence: 99%

Habitat Alteration Affects the Diversity and Assemblage of Amphibians in Rajah Sikatuna Protected Landscape of Bohol, Philippines

Aureo

Decena

2022

Preprint

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Anthropogenic habitat alteration is considered to be one of the major culprits of biodiversity loss worldwide. This paper presents an investigation on the response of tropical amphibian assemblage to a gradient of habitat alteration in Rajah Sikatuna Protected Landscape (RSPL) of Bohol, Philippines. The abundance, richness, diversity and composition of amphibians were compared among the different habitat types (lower montane forest, dipterocarp forest, riparian forest, grassland and agricultural areas), as well as their relationships with environmental or habitat characteristics were examined. A total of 318 amphibian individuals from 18 species, and belonging to 7 families were recorded. It was found that amphibian abundance, richness and diversity differed significantly between habitat types where it was generally higher in less disturbed habitats (e.g., forests and riparian) compared to highly altered habitats (e.g. grassland and agricultural areas). In relation to species composition pattern, forests and riparian habitats were strongly associated with rainforest and stream-dependent amphibian species while highly altered habitats such as grassland and agricultural areas were associated with those that were open-habitat specialist and disturbance tolerant species. Moreover, the most important environmental variables influencing the pattern of amphibian diversity in the area included grass cover, litter depth, ground relative humidity, temperature, and elevation. In summary, the assemblage of amphibians in the RSPL, Bohol was affected by habitat alteration, highlighting the importance of the sustained protection efforts of the landscape.

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Diversity and composition of plant species in the forest over limestone of Rajah Sikatuna Protected Landscape, Bohol, Philippines

Cited by 11 publications

References 10 publications

Floristic Assessment of the Mt. Bandila-an Forest Reserve in Siquijor, Philippines

Floristic Assessment of the Mt. Bandila-an Forest Reserve in Siquijor, Philippines

Diversity and Aboveground Carbon Stocks of Trees and Understorey Plant Species in Matalom, Leyte, Philippines

Habitat Alteration Affects the Diversity and Assemblage of Amphibians in Rajah Sikatuna Protected Landscape of Bohol, Philippines

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