Linalool in mandibular gland secretion ofColletes bees (Hymenoptera: Apoidea) |
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Authors: | Gunnar Bergström Jan Tengö |
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Affiliation: | (1) The Ecological Station of Uppsala University on Öland, S-380 60 Färjestaden;(2) Ecological Chemistry, Department of Medical Biochemistry, Göteborg University, S-400 33 Göteborg, Sweden |
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Abstract: | Uinalool was identified as the main component of the mandibular gland secretion in females and males of four species ofColletes bees, viz.,C. cunicularius, C. daviesanus, C. impunctatus andC. succinctus. It was also shown to be the dominant volatile compound in the same gland in maleC. floralis (the female of this species has not yet been investigated). Further, in another species,C. similis, linalool is present in the mandibular gland secretions of females and males, but the dominant volatile component in these secretions is geranial, together with neral. Females of the speciesC. fodiens seem to lack monoterpenes altogether; nonadecane is the dominant volatile compound of the cephalic secretion (based on analysis of a single individual). When linalool is put out in the area of nest aggregation ofC. cunicularius, where the males are patrolling, a distinct increase in flight activity is noted. The function of linalool is discussed on the basis of field observations.This report forms part XXI in the series Studies on Natural Odoriferous Compounds. |
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Keywords: | Colletes spp bees mandibular gland secretion linalool |
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