KEANEKARAGAMAN KUPU-KUPU (Lepidoptera: Rhopalocera) DI RESORT NANGA POTAN TAMAN NASIONAL BETUNG KERIHUN KABUPATEN KAPUAS HULU

Abstract

Butterflies are one proof of the richness of insect species found in the tropics, especially in the Betung Kerihun National Park. This research aims to determine diversity level of butterflies in the Nanga Potan Resort, Betung Kerihun National Park Kapuas Hulu District. Research method used was to explore line transects in three zones, namely the utilization zone, jungle zone, and core zone with three repetitions in each zone. The transects used were 500 m long with visibility to the right and left of 10 m, and the distance between transects was approximately 1000 m. The research results obtained an average of 330 butterfly individuals from 43 species, 32 genera belonging to four families, namely Lycaenidae, Nymphalidae, Papilionidae, and Pieridae. The Nymphalidae family has the highest percentage of butterfly species among all zones, while the Lycaenidae family has the lowest percentage of butterfly species among all zones. Cepora iudith and Trogonoptera brookiana had the highest important value index (IVI) in each observation zone, while Troides amphrysus had the lowest important value index (IVI) and was only found in the jungle zone. The Diversity Index () of butterflies is included in the medium to high criteria, ranged between 2.84-3.17. The Evenness Index (E) of butterflies is included in the high criteria, ranged between 0.76-0.84 meaning that the population distribution of butterfly spesies in community is evenly distributed. The Dominance Index (D) of butterflies is included in low criteria ranged between 0.06-0.1 meaning that no species was dominates in the three research zones.