| Title: | Chemosensory discrimination of identity and familiarity in koalas |
| Address: | "School of Biology and Environmental Science, University College Dublin (UCD), Belfield, Dublin 4, Ireland. Electronic address: benjamin.charlton@ucd.ie" |
| DOI: | 10.1016/j.beproc.2015.07.008 |
| ISSN/ISBN: | 1872-8308 (Electronic) 0376-6357 (Linking) |
| Abstract: | "Despite numerous descriptive accounts of scent marking in marsupials, rigorous experimentation is rare, and relatively little evidence exists to show that conspecifics use chemical signals to distinguish between individuals or different social groups. In this study a series of olfactory discrimination tests sought to determine whether: (1) male koala sternal scent gland secretions are individually distinctive; and (2) male koalas can differentiate between the scent of familiar and unfamiliar individuals. In the first experiment a habituation-discrimination trial demonstrated that male koalas discriminate between the scent gland secretions of different unfamiliar individuals. In a second experiment male koalas spent significantly more time investigating scent from unfamiliar males than familiar males, supporting the hypothesis that they differentiate between conspecifics based on their familiarity. Taken together these results suggest that male koalas are able to discriminate the identity and familiarity of conspecifics using chemical cues, and provide a platform for further studies investigating the functional role of olfactory communication in this species" |
| Keywords: | "Animal Communication Animals Behavior, Animal/*physiology Cues Discrimination, Psychological Habituation, Psychophysiologic Male Odorants Phascolarctidae/*physiology Pheromones/chemistry/*physiology Recognition, Psychology/physiology Scent Glands/chemistr;" |
| Notes: | "MedlineCharlton, Benjamin D eng Research Support, Non-U.S. Gov't Netherlands 2015/07/29 Behav Processes. 2015 Oct; 119:38-43. doi: 10.1016/j.beproc.2015.07.008. Epub 2015 Jul 26" |
