PARLUHUTAN SIAHAAN
Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Sam Ratulangi. Jl. Kampus Bahu, Manado 95115, North Sulawesi, Indonesia

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The abundance and diversity of butterflies (Lepidoptera: Rhopalocera) in Talaud Islands, North Sulawesi, Indonesia Roni Koneri; MEIS J. NANGOY; PARLUHUTAN SIAHAAN
Biodiversitas Journal of Biological Diversity Vol. 20 No. 11 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d201121

Abstract

Abstract. Koneri R, Nangoy MJ, Siahaan P. 2019. The abundance and diversity of butterflies (Lepidoptera: Rhopalocera) in Talaud Islands, North Sulawesi, Indonesia. Biodiversitas 20: 3275-3283. Butterflies play a number of roles in the ecosystem. They help pollination and natural propagation and also are an important element of the food chain as prey for bats, birds, and other insectivorous animals. This study aimed to analyze the abundance and diversity of butterflies (Lepidoptera: Rhopalocera) in the Talaud Islands of North Sulawesi, Indonesia. The sampling method used was scan sampling along the transect line in three habitat types, namely, forest edge, farmland, and shrubland. The species diversity was determined by using the diversity index (Shanon-Wiener), the species richness index was calculated using the Margalef species richness index (R1), while species evenness was counted by using the Shannon evenness index (E). One-way ANOVA and Duncan test at the 95% significance level were used to determine differences in species richness, species abundance, species diversity values, and species evenness among habitat. In this study, we identified 1008 individuals of butterfly consisted of 32 species and five families. Nymphalidae was the dominant family with 15 species, while the highest abundance species was Eurema tominia. The highest species abundance, species richness index, species diversity index, and species evenness index were found in forest edge habitat. The largest similarity index of the composition of the butterfly communities was found in forest edge and farmland habitats. The abundance and diversity of butterfly species in a habitat are strongly influenced by the diversity of vegetation as shelter and source of nectar for butterflies, and the existence of a river as a source of water and minerals from wet rocks, mud, and sand along the riverside.
Arboreal insects and mangrove vegetation pollinators in Bunaken National Park, North Sulawesi, Indonesia RONI KONERI; PARLUHUTAN SIAHAAN; SAROYO SAROYO; MEIS JACINTA NANGOY; WAKHID WAKHID
Biodiversitas Journal of Biological Diversity Vol. 26 No. 4 (2025)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d260407

Abstract

Abstract. Koneri R, Siahaan P, Saroyo, Nangoy MJ, Wakhid. 2025. Arboreal insects and mangrove vegetation pollinators in Bunaken National Park, North Sulawesi, Indonesia. Biodiversitas 26: 1553-1564. The diversity of mangrove species is predominantly composed of animals and plants, where insects have not been fully explored. Therefore, this study aimed to analyze the diversity of arboreal insects and mangrove vegetation pollinators on the Coast of Bunaken Sub-district, Manado City, North Sulawesi, Indonesia. Sampling was conducted at 3 observation stations in mangrove vegetation using the beating-tray method to obtain arboreal insects. Scan sampling and insect nets were used for mangrove vegetation pollinators. The results showed that arboreal insects and mangrove vegetation pollinators comprised 1,028 individuals covering 45 species in 17 families and 6 orders. The order with the highest abundance was Hymenoptera, while the largest number of species was Lepidoptera. Based on the relative abundance of species, Oecophylla smaragdina, Tetrigona apicalis, and Dolichoderus thoracicus were ranked as 1, 2, and 3, respectively. The average index of dominance, richness, and diversity of arboreal insects and the highest mangrove vegetation pollinators were found at Meras station. The similarity analysis indicated that the composition of arboreal insects and mangrove vegetation pollinators did not show significant differences. Environmental factors such as air temperature, air humidity, wind speed, and light intensity at the 3 observation stations were different. The highest air temperature and wind speed were found at the Tongkaina, while Meras had the lowest. The common species distribution pattern found was aggregate, suggesting that the mangrove vegetation area on the coast of Bunaken could support the abundance, richness, and diversity of arboreal insects as well as mangrove vegetation pollinators. At all observation stations, approximately the same species of insect composition was found. These results provided valuable information, serving as a database and consideration in formulating conservation strategies for arboreal insects and mangrove vegetation pollinators in the mangrove forest area on the Coast of Bunaken Sub-district.