G
Gunnar Bergström
Researcher at Uppsala University
Publications - 18
Citations - 637
Gunnar Bergström is an academic researcher from Uppsala University. The author has contributed to research in topics: Pollen & Pollinator. The author has an hindex of 14, co-authored 18 publications receiving 613 citations. Previous affiliations of Gunnar Bergström include University of Gothenburg.
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Journal ArticleDOI
Pollen Advertisement: Chemical Contrasts Between Whole-Flower and Pollen Odors
Heidi E. M. Dobson,Heidi E. M. Dobson,Inga Groth,Inga Groth,Gunnar Bergström,Gunnar Bergström +5 more
TL;DR: It is suggested that pollen odor is used by pollen-foraging insects both to discriminate between plant species and to assess reward availability in individual flowers, and that it might in addition serve a protective function against destructive flower-feeding insects and pathogens.
Journal ArticleDOI
Differences in attraction to semiochemicals present in sympatric pine shoot beetles, Tomicus minor and T. piniperda.
Boel Lanne,Fredrik Schlyter,John A. Byers,Jan Löfqvist,Anders Leufvén,Gunnar Bergström,J. N. C. van der Pers,Rikard C. Unelius,Peter Baeckström,Torbjörn Norin +9 more
TL;DR: It is suggested that host and mate location in T. piniperda is achieved by means of a kairomone composed of host monoterpenes, whileT.
Journal ArticleDOI
Pollen and flower volatiles in two Rosa species
Heidi E. M. Dobson,Jon Bergström,Jon Bergström,Gunnar Bergström,Gunnar Bergström,Inga Groth,Inga Groth +6 more
TL;DR: GC/MS of headspace volatiles adsorbed separately from whole flowers and from pollen of R. rugosa shows distinct chemical profiles composed of aliphatics, terpenoids, and aromatics; only one-third of the identified compounds were detected in both samples.
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Linalool in mandibular gland secretion ofColletes bees (Hymenoptera: Apoidea)
TL;DR: Uinalool was identified as the main component of the mandibular gland secretion in females and males of four species ofColletes bees, and was shown to be the dominant volatile compound in the same gland in male C. cunicularius and female C. floralis.
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Wing scents and scent-released phases in the courtship behavior ofLycaeides argyrognomon (Lepidoptera: Lycaenidae)
TL;DR: Experiments with models indicate the existence of behavior-releasing odors from the female wings though the females lack scent scales comparable to those of the males, and field experiments have shown that the refusal posture of mated females is released by odor from the male wings.