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An offspring signal of quality affects the timing of future parental reproduction
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 964454
Author(s) Mas, F.; Kölliker, M.
Author(s) at UniBasel Kölliker, Mathias
Year 2011
Title An offspring signal of quality affects the timing of future parental reproduction
Journal Biology Letters
Volume 7
Number 3
Pages / Article-Number 352-354
Keywords parent-offspring conflict, offspring begging, chemical communication, Forficula auricularia, parental care
Abstract Solicitation signals by offspring are well known to influence parental behaviour, and it is commonly assumed that this behavioural effect translates into an effect on residual reproduction of parents. However, this equivalence assumption concerning behavioural and reproductive effects caused by offspring signals remains largely untested. Here, we tested the effect of a chemical offspring signal of quality on the relative timing and amount of future reproduction in the European earwig (Forficula auricularia). We manipulated the nutritional condition of earwig nymphs and exposed females to their extract, or to solvent as a control. There were no significant main effects of exposure treatment on 2nd clutch production, but exposure to extracts of well-fed nymphs induced predictable timing of the 2nd relative to the 1st clutch. This result demonstrates for the first time that an offspring signal per se, in the absence of any maternal behaviour, affects maternal reproductive timing, possibly through an effect on maternal reproductive physiology.
Publisher The Royal Society
ISSN/ISBN 1744-957X
edoc-URL http://edoc.unibas.ch/dok/A5848965
Full Text on edoc Restricted
Digital Object Identifier DOI 10.1098/rsbl.2010.1094
ISI-Number WOS:000290515100011
Document type (ISI) Article
 
   

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