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Strategic male signalling effort in a desert-dwelling fish
School of Biological Sciences, Monash University, Melbourne, VIC, 3800, Australia.ORCID iD: 0000-0002-1426-0036
2009 (English)In: Behavioral Ecology and Sociobiology, ISSN 0340-5443, E-ISSN 1432-0762, Vol. 63, no 4, 543-549 p.Article in journal (Refereed) Published
Abstract [en]

Males often use elaborate courtship displays to attract females for mating. Much attention, in this regard, has been focused on trying to understand the causes and consequences of signal variation among males. Far less, by contrast, is known about within-individual variation in signal expression and, in particular, the extent to which males may be able to strategically adjust their signalling output to try to maximise their reproductive returns. Here, we experimentally investigated male courtship effort in a fish, the Australian desert goby, Chlamydogobius eremius. When offered a simultaneous choice between a large and a small female, male gobies spent significantly more time associating with, and courting, the former, probably because larger females are also more fecund. Male signalling patterns were also investigated under a sequential choice scenario, with females presented one at a time. When first offered a female, male courtship was not affected by female size. However, males adjusted their courtship effort towards a second female depending on the size of the female encountered previously. In particular, males that were first offered a large female significantly reduced their courtship effort when presented with a subsequent, smaller, female. Our findings suggest that males may be able to respond adaptively to differences in female quality, and strategically adjust their signalling effort accordingly.

Place, publisher, year, edition, pages
2009. Vol. 63, no 4, 543-549 p.
National Category
Behavioral Sciences Biology Evolutionary Biology
Research subject
Natural Science, Aquatic Ecology; Natural Science, Evolutionary Biology
Identifiers
URN: urn:nbn:se:lnu:diva-18773ISI: 000262669000008OAI: oai:DiVA.org:lnu-18773DiVA: diva2:527853
Note

#1146

Available from: 2012-05-22 Created: 2012-05-22 Last updated: 2016-05-03Bibliographically approved

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  • apa
  • harvard1
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Language
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
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