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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences BIOTROPIA - The Southeast Asian Journal of Tropical Biology
Alma B. Mohagan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Veterinary

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Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines Alma B. Mohagan; Romeo Jr. Rogano Patano; Merced G. Melencion; Daryl S. Salas; Fulgent P. Coritico; Victor B. Amoroso
Journal of Tropical Life Science Vol. 10 No. 3 (2020)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.10.03.10

Abstract

Fieldworks were conducted last January to March, 2019 to collect and record species of weevils at Sitio Matigsalug, Marahan, Marilog Forest Reserve, Marilog District, Mindanao, Philippines. Standard sampling techniques such as belt transect and opportunistic sampling were conducted in the established 2 kilometers transect to survey the agroforest and montane ecosystems with elevations of 800-950 masl and 1,000-1,300 masl, respectively. A total of 228 individuals belonging to 2 families and 22 species of weevils were recorded, all of which are only known from forest and mountain ecosystems of Mindanao. Metapocrytus is the most encountered genus with 12 species. The montane forest had higher species richness with 15 species but with lower species abundance of 34 individuals compared to the agroforest ecosystem with 13 species and 194 individuals. Seven (7) species are common in both sites. Plant associates and behavior of the observed weevils were also noted which include 22 species of ferns and flowering plants. Other than perching behavior, species are also observed copulating, feeding and mostly hiding in abaxial part of leaves. As flightless beetles with high vulnerability for predation by other insectivorous species, the observations gathered will help in understanding their behaviors for survival. Despite of high species richness and abundance, anthropogenic disturbances such as agricultural activities are on-going which extend towards the montane forest in the area. Conservation initiatives must be implemented to protect the remaining endemic and rare species of flora and fauna.
Diversity and Status of Butterflies in Awasian Water Forest Reserve, Mt. Hilong-hilong, Philippines ARTURO GRASIA; MARY CRIS G. ABAO; KEVIN C. QUIŇONEZ; MARK FREDDIE D. SUAREZ; LEA JANE G ELEGIO; ALMA B. MOHAGAN
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 29 No. 3 (2022): BIOTROPIA Vol. 29 No. 3 Desember 2022
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2022.29.3.1569

Abstract

Butterflies are deemed as an essential faunal group in the ecosystem due to their ecological services. However, continuous habitat loss leads to the decline of its population. Thus, this study was conducted to assess its diversity and status in one of the Watersheds of Mt. Hilong-hilong. Sweep netting (336 man-hours) and butterfly trapping (200 trap days) were carried out to document the species. Fifty-seven species of butterflies were recorded with the family Nymphalidae as the most represented group (n = 30). Species diversity (H') was relatively higher in Dipterocarp (H' = 1.49) forest than Agroecosystem (H' = 1.39), a result primarily influenced by favorable ecological support like food availability. Endemicity was 31%, which comprised mostly of rare species. Noteworthy findings are the listing of globally and nationally rare species but locally assessed as common. Based on the results, the area harbors an array of butterfly species and various rare species that requires an effective management plan to conserve the organisms.
Co-Authors ARTURO GRASIA Daryl S. Salas Fulgent P. Coritico KEVIN C. QUIŇONEZ LEA JANE G ELEGIO MARK FREDDIE D. SUAREZ MARY CRIS G. ABAO Merced G. Melencion Romeo Jr. Rogano Patano Victor B. Amoroso