VISITING BEE (HYMENOPTERA:APIFORMES) LINKAGES AMONG THREE TERRACED PADDIES UNDER RESTORATION IN KANAZAWA, ISHIKAWA, JAPAN

• Main Author: Priawandiputra, Windra
• Format: Theses
• Language: Indonesia
• Subjects: Ilmu hayati ; Biologi
• Online Access: https://digilib.itb.ac.id/gdl/view/36058
• Institution: Institut Teknologi Bandung

Satoyama is the traditional agricultural landscape in rural areas of Japan, it is important for biodiversity conservation as well as many ecosystem services to human well-being. Satoyama is composed of mosaics with different habitat types and the degree of management, which produces the richness of species composition and species interactions. It is important to understand the structure and dynamics of pollination system in Satoyama area. In this study, we compared species richness and abundance of flowering plants, flower visiting bees and linkages of flowering plants and flower visiting bees among 3 terraced paddies at Kitadan, Minamidan and Zontan, under different stage of restoration. This study was carried out from May to July 2010 in Satoyama area near Kakuma Campus of Kanazawa University, Kanazawa, Ishikawa, Japan. Flower visiting bees and their relationship were monitored by modified Pollard transect method. "#$! %#&$'()&%*#! *+! ,%#-(.$/! %/! 0$+%#$0! (/! %#&$'()&%*#! 1$&2$$#! *#$! +,*2$'%#.! 3,(#&! (#0! *#$! 1$$! /3$)%$/! '$.('0,$//! &4$!#561$'!*+! %#/$)&! 7%/%&$08 The results of this study indicated that a total 86 flowering plant species (36 families) categorized into 6 life forms in addition the number of flowering plant species visited by bees was highest in Minamidan valley. From these plants, 42 species (26 families) were confirmed to be visited by bees and there were 494 individuals from 36 species (6 families) of flower visiting bees. Among the sites, the highest number of individuals and species of the bees were in Zontan. Bees of Lasioglossum occidens (71 individuals) and L. ohei (64 individuals) (Halictidae) were the most abundant species. From this study, it was showed that 41 flowering plant species and 36 flower-visiting bees formed a total of 148 linkages. Bees from the Family of Halictidae were built 88 linkages in all valleys. The linkages of flowering plants and flower visiting bees were different for each site of study, in Kitadan were 39, in Minamidan were 60, and 64 linkages in Zontan. Most bees were attracted to the plant of Erigeron philadelphictus, E. annuus (Astreaceae), and Potentilla centigrana (Rosaceae). Based on the result, the restoration practices in Satoyama resulted in changes to the composition of flowering plant. The compositions of flowering plant species affected the visited bee and the linkages of flower - insect relationships for each site.