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Land snail diversity of Mount Banahaw-San Cristobal Protected Landscape (MBSCPL) on Luzon Island, Philippines
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Issue

thnhmjournal vol17 no1

Authors

Kinsley Meg G. Perez
School of Environmental Science and Management, University of the Philippines Los Baños, College, Laguna 4031, Philippines
Julius A. Parcon
Museum of Natural History, University of the Philippines Los Baños, College, Laguna 4031, Philippines
Virginia C. Cuevas
School of Environmental Science and Management, University of the Philippines Los Baños, College, Laguna 4031, Philippines. / Environmental Biology Division, Institute of Biological Sciences, University of the Philippines Los Baños, College, Laguna 4031
Emmanuel Ryan C. de Chavez
Museum of Natural History, University of the Philippines Los Baños, College, Laguna 4031, Philippines / Animal Biology Division, Institute of Biological Sciences, University of the Philippines Los Baños, College, Laguna 4031, Philippines

Abstract

Abstract

Malacofaunal research focused on forest ecosystems is very limited in the Philippines. To address this information gap, the diversity and distribution of land snails were determined in Mount Banahaw, Luzon Island, Philippines. Four slopes (northeast- Lucban, southeast-Tayabas, northwest-Majayjay, and southwest-Dolores) were selected for sampling. A total of 36 plots of 20 x 20 m2 were set randomly in the protected area. A total of 868 land snails comprising 33 species under 24 genera representing 9 families were sampled. Camaenidae was the most represented family with 10 species. Ryssota otaheitana constituted 29.15% of the total number of samples (253 individuals) and was the most abundant species on all the slopes. Of the four slopes, Majayjay has the greatest number of individuals (320) while Lucban has the least (149). In terms of species richness, Dolores has the highest number of species (23) while Tayabas has the least (13). The most abundant species was Ryssota otaheitana (253), while Chloraea hennigiana (1), Cyclotus sp. (1) and Helicarion c.f. cumingii (1) were the least. Three introduced species from Family Achatinidae were recorded,namely, Lissachatina fulica, Allopeas clavulinum, and Allopeas gracile. All invasive species were collected in Dolores. Species accumulation curves (SAC) showed β-dominated pattern of land snails with a completeness ratio of 0.83. The study presented the rich and diverse malacofauna of Mt. Banahaw. It is very important to recognize this protected area as a priority site for malacofaunal conservation.

Attachment

01 Perez et al.pdf

Keywords

diversity
distribution
macro land snails
micro land snails
Mt. Banahaw
species richness
abundance

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