島根大学農学部
ISSN:0370-940X
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島根大学農学部研究報告 16
1982-12-20 発行
西条カキ園における訪花昆虫群集の日変化について : 山陰地方における圃場の昆虫群集に関する研究(8)
On the Hourly Change of the Pollinator Assosiation Found in the Japanese Persimmon, Var. Saijo Orchard in Day-Time
三浦 正
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内容記述（抄録等）
In order to investigate the diurnal change of the pollinator fauna, the present experiment was carried out in the Japanese persimmon, var Saijo orchard. The results obtained were as follows ;
1) The pollinator collected were nine species of Hymenoptera and six species of Diptera.
Total number of pollinator collected amount to sixteen species of Hymenoptera and eight species of Diptera including the species investigated in last year（1981).
2) As a whole, the structure of pollinator association showed a complex pattern in the morning, and that turned into a simple pattern in the afternoon.
3) The index of degree of overlap between the pollinator fauna collected at 14.00 hr and that collected at 15.00 hr was calculated as 0.974, and the value was the highest in this study.
4) The main species observed in the present experiment were as follows ; Apis cerena> Xylocopa appendiculata circumvolans> Tetralonia nipponensis.
1) The pollinator collected were nine species of Hymenoptera and six species of Diptera.
Total number of pollinator collected amount to sixteen species of Hymenoptera and eight species of Diptera including the species investigated in last year（1981).
2) As a whole, the structure of pollinator association showed a complex pattern in the morning, and that turned into a simple pattern in the afternoon.
3) The index of degree of overlap between the pollinator fauna collected at 14.00 hr and that collected at 15.00 hr was calculated as 0.974, and the value was the highest in this study.
4) The main species observed in the present experiment were as follows ; Apis cerena> Xylocopa appendiculata circumvolans> Tetralonia nipponensis.
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