Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines
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 op-portunistic sampling were conduc...
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University of Brawijaya
2020-09-01
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Online Access: | https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/1397/pdf |
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author | Alma B. Mohagan, Romeo R. Patano Jr Merced G. Melencion Daryl S. Salas Fulgent P. Coritico Victor B. Amoroso |
author_facet | Alma B. Mohagan, Romeo R. Patano Jr Merced G. Melencion Daryl S. Salas Fulgent P. Coritico Victor B. Amoroso |
author_sort | Alma B. Mohagan, Romeo R. Patano Jr |
collection | DOAJ |
description | 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 op-portunistic sampling were conducted in the established 2 kilometers transect to sur-vey 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. Metapocrytusis 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 ecosys-tem 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, spe-cies are also observed copulating, feeding and mostly hiding in abaxial part of leaves. As flightless beetles with high vulnerability for predation by other insectivo-rous species, the observations gathered will help in understanding their behaviors for survival. Despite of high species richness and abundance, anthropogenic disturb-ances such as agricultural activities are on-going which extend towards the montane forest in the area. Conservation initiatives must be implemented to protect the re-maining endemic and rare species of flora and fauna. |
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spelling | doaj.art-d530721aef74465fbd4b9c93a25e6c582023-12-03T07:02:36ZengUniversity of BrawijayaJournal of Tropical Life Science2087-55172020-09-01103259270https://doi.org/10.11594/jtls.10.03.10Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, PhilippinesAlma B. Mohagan, Romeo R. Patano Jr0Merced G. Melencion1Daryl S. Salas2Fulgent P. Coritico3Victor B. Amoroso4Center for Biodiversity Research and Extension in Mindanao, Department of Biology, Central Mindanao Univer-sity, Musuan, Maramag, Bukidnon 8710, PhilippinesCenter for Biodiversity Research and Extension in Mindanao, Department of Biology, Central Mindanao Univer-sity, Musuan, Maramag, Bukidnon 8710, PhilippinesCenter for Biodiversity Research and Extension in Mindanao, Department of Biology, Central Mindanao Univer-sity, Musuan, Maramag, Bukidnon 8710, PhilippinesCenter for Biodiversity Research and Extension in Mindanao, Department of Biology, Central Mindanao Univer-sity, Musuan, Maramag, Bukidnon 8710, PhilippinesCenter for Biodiversity Research and Extension in Mindanao, Department of Biology, Central Mindanao Univer-sity, Musuan, Maramag, Bukidnon 8710, PhilippinesFieldworks 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 op-portunistic sampling were conducted in the established 2 kilometers transect to sur-vey 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. Metapocrytusis 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 ecosys-tem 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, spe-cies are also observed copulating, feeding and mostly hiding in abaxial part of leaves. As flightless beetles with high vulnerability for predation by other insectivo-rous species, the observations gathered will help in understanding their behaviors for survival. Despite of high species richness and abundance, anthropogenic disturb-ances such as agricultural activities are on-going which extend towards the montane forest in the area. Conservation initiatives must be implemented to protect the re-maining endemic and rare species of flora and fauna.https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/1397/pdfendemicmarilog districtmetapocyrtusmontane forestpachyrhyn-chus |
spellingShingle | Alma B. Mohagan, Romeo R. Patano Jr Merced G. Melencion Daryl S. Salas Fulgent P. Coritico Victor B. Amoroso Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines Journal of Tropical Life Science endemic marilog district metapocyrtus montane forest pachyrhyn-chus |
title | Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines |
title_full | Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines |
title_fullStr | Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines |
title_full_unstemmed | Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines |
title_short | Diversity of Weevils (Coleoptera) in Marahan, Marilog Forest Reserve, Southern Mindanao, Philippines |
title_sort | diversity of weevils coleoptera in marahan marilog forest reserve southern mindanao philippines |
topic | endemic marilog district metapocyrtus montane forest pachyrhyn-chus |
url | https://jtrolis.ub.ac.id/index.php/jtrolis/article/view/1397/pdf |
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