Repeatability of nest size choice and nest building in sand gobies

291 8 1013 1 3182 document 1013 Japoshvili-et-al-2012.pdf application/pdf 0cf7a27db3a468c37fb3cf523560f659 MD5 185661 2014-01-20 14:05:36 http://eprints.iliauni.edu.ge/291/1/Japoshvili-et-al-2012.pdf 291 1 1 application/pdf text ge public

Japoshvili-et-al-2012.pdf

1028 2 3220 document 1028 lightbox.jpg image/png 9caf2d3d69c109182fff523b79298a87 MD5 57590 2014-01-20 14:15:37 http://eprints.iliauni.edu.ge/291/3/lightbox.jpg 291 3 3 image/png other Thumbnails conversion from text to thumbnail_lightbox ge public

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http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/1013 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/1013 http://eprints.org/relation/issmallThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/1013 archive 53 disk0/00/00/02/91 2014-01-20 16:33:46 2015-03-25 11:29:41 2014-01-20 16:33:46 article show Japoshvili Bella bela_japoshvili@iliauni.edu.ge Lehtonen Topi K. Wong Bob B. M. Lindström Kai Repeatability of nest size choice and nest building in sand gobies pub QL ins5 public To be useful as mate choice cues, behavioural traits have to be performed consistently within individuals. This may also be true for nest construction, which, in addition to in!uencing offspring survival, can also function as an extended phenotype of the builder. We tested whether choice of a nesting resource and subsequent nest-building performance are repeatable traits in the sand goby, Pomatoschistus minutus, a small marine "sh with paternal egg care and female mating preferences that are in!uenced by male nest-building behaviour. When given a choice between three different-sized nesting resources (!owerpots), males, on average, preferred medium-sized nesting resources, with larger males preferring larger nests than smaller individuals. At the individual level, the choice of nesting resources was so variable between consecutive trials that choice behaviour was not repeatable. Furthermore, nest building, measured as the amount of sand piled on top of the nesting resource, was highly repeatable when males were free to choose their nest, but had only a low repeatability when males had just a single option. In neither case was the size of the nest entrance repeatable between consecutive rounds of nest building. These results highlight the context-dependent signal value of extended phenotypes. In particular, reliability of nest-building behaviour as a signal seems to be in!uenced by the male’s opportunity to choose the object it uses for nesting. 2012 Animal Behaviour 84 ELSEVIER 913-917 TRUE