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Olfactory sensitivity of spider monkeys (Ateles geoffroyi) for six structurally related aromatic aldehydes
Linköping University, Department of Physics, Chemistry and Biology.
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 40 credits / 60 HE creditsStudent thesis
Abstract [en]

For many years, primates have been considered to be animals with a poorly developed sense of smell. However, in recent years several studies have shown that at least some primate species have a high olfactory sensitivity for a variety of odorants. The present study used a two-choice instrumental conditioning paradigm to test the olfactory sensitivity for six aromatic aldehydes in four spider monkeys (Ateles geoffroyi). With helional, cyclamal,canthoxal and lilial all animals discriminated concentrations below 1 ppm from the odorless solvent, with single individuals even scoring better. With 3-phenyl-propionic aldehyde all animals detected concentrations below 2 ppb, and with bourgeonal even below 0.3 ppb. The detection thresholds of the odorants changed systematically with molecular structure. Addition of a dioxo or methoxy group to the benzene ring led to an increase in threshold values,while the absence of a methyl group close to the aldehyde moiety was linked to a low threshold value for the odorant. The study shows that spider monkeys have a well developed olfactory sensitivity for aromatic aldehydes.

Place, publisher, year, edition, pages
2009. , 20 p.
Keyword [en]
Aromatic aldehydes, olfactory detection thresholds, spider monkeys
National Category
URN: urn:nbn:se:liu:diva-18796ISRN: LiTH-IFM-Ex--09/2133--SEOAI: diva2:221305
Available from: 2009-06-09 Created: 2009-06-03 Last updated: 2009-06-09Bibliographically approved

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Kjelmand, Luna
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