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An increase in pH boosts olfactory communication in sticklebacks
Department of Biological and Environmental Sciences, University of Helsinki.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Limnology.
2007 (English)In: Biology Letters, ISSN 1744-9561, E-ISSN 1744-957X, Vol. 3, no 4, 411-413 p.Article in journal (Refereed) Published
Abstract [en]

Human-induced eutrophication is a serious environmental problem that constrains visual communication and influences the mate choice process in fishes. Eutrophication also changes the chemical environment and the pH of the water, which could influence the use of olfactory cues in mate choice. Here, we show that an increase in pH enhances the use of male olfactory cues in mate choice in three-spined sticklebacks, Gasterosteus aculeatus. In a laboratory choice experiment, gravid females were more attracted to male olfactory cues when pH was raised. This could compensate for impaired visual communication in eutrophied waters and facilitate adaptive mate choice.

Place, publisher, year, edition, pages
2007. Vol. 3, no 4, 411-413 p.
Keyword [en]
Anthropogenic disturbance, Environmental change, Mate preference, Multiple cues, Olfaction, Sexual selection
National Category
Biological Sciences
URN: urn:nbn:se:uu:diva-14045DOI: 10.1098/rsbl.2007.0141ISI: 000247907000017PubMedID: 17456448OAI: oai:DiVA.org:uu-14045DiVA: diva2:41815
Available from: 2008-01-28 Created: 2008-01-28 Last updated: 2011-01-27Bibliographically approved

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