Issue:ISSN 2095-1353
CN 11-6020/Q
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2008年45 No.1
An observation on pollinating insects and their flowervisiting behavior on Pyrola dahurica
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Key Words:Pyrola dahurica, pollinators, flower visiting behavior, visiting frequencies
Abstract:The species of visiting insects, visiting frequency, visiting time and visiting behavior to Pyrola dahurica (H.Andr.) Kom were preliminarily studied. The result indicated: (1) Visiting insects to P. dahurica (H.Andr.) Kom include 3 orders,10 families and 16 species, in which the pollinating insects are 9 species belonging to 5 families. The mainly pollinating insects include Phaonia hybrida ssp.,Bombus ignitus, Piidonia puziloi(Soisky) and Mordellidae sp. (2) The visiting frequency is obviously different among various pollinating insects. The visiting frequency of P. hybrida ssp and Mordellida reaches the high peak twice each day,at 9:00~10:00 a.m. and 14:00~15:00 p.m. respectively; The visiting frequency of Bombus ignitus is very low each day, which is comparatively higher at 11:00~12:00 a.m. and 15:00~16:00 p.m. than the other time in a day; The visiting frequency of P. puziloi reaches the high peak at about noon each day.(3) Among the three main pollinating insects, the visiting time of P. puziloi is the longest, about 10~15 minutes, which mainly eats the pollen of P. dahurica. The visiting time of P. hybrida ssp is comparatively shorter, about 10~25 seconds, which mainly laps the stigma secretionof the P. dahurica, and that of B. ignitus is the shortest, about 5~10 seconds, which mainly eats the pollen of P. dahurica.