The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs.
In group-living species with parental care, the accurate recognition of one's own young is critical to fitness. Because discriminating offspring within a large colonial group may be challenging, progeny of colonial breeders often display familial or individual identity signals to elicit and rec...
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Online Access: | http://hdl.handle.net/10141/622539 https://doi.org/10.1098/rsif.2019.0115 |
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ftnhmlondon:oai:nhm.openrepository.com:10141/622539 2023-07-30T04:02:59+02:00 The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. Hauber, ME Bond, AL Kouwenberg, A-L Robertson, GJ Hansen, ES Holford, M Dainson, M Luro, A Dale, J 2019-07-03T15:36:00Z http://hdl.handle.net/10141/622539 https://doi.org/10.1098/rsif.2019.0115 unknown Royal Society Hauber ME, Bond AL, Kouwenberg A-L, Robertson GJ, Hansen ES, Holford M, Dainson M, Luro A, Dale J. 2019 The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. J. R. Soc. Interface 16: 20190115. http://dx.doi.org/10.1098/rsif.2019.0115 doi:10.1098/rsif.2019.0115 http://hdl.handle.net/10141/622539 1742-5662 J R Soc Interface 16 153 20190115 closedAccess coloniality coloration discrimination egg recognition individual recognition maculation biomaterials evolution Journal Article 2019 ftnhmlondon https://doi.org/10.1098/rsif.2019.0115 2023-07-11T05:39:06Z In group-living species with parental care, the accurate recognition of one's own young is critical to fitness. Because discriminating offspring within a large colonial group may be challenging, progeny of colonial breeders often display familial or individual identity signals to elicit and receive parental provisions from their own parents. For instance, the common murre (or common guillemot: Uria aalge) is a colonially breeding seabird that does not build a nest and lays and incubates an egg with an individually unique appearance. How the shell's physical and chemical properties generate this individual variability in coloration and maculation has not been studied in detail. Here, we quantified two characteristics of the avian-visible appearance of murre eggshells collected from the wild: background coloration spectra and maculation density. As predicted by the individual identity hypothesis, there was no statistical relationship between avian-perceivable shell background coloration and maculation density within the same eggs. In turn, variation in both sets of traits was statistically related to some of their physico-chemical properties, including shell thickness and concentrations of the eggshell pigments biliverdin and protoporphyrin IX. These results illustrate how individually unique eggshell appearances, suitable for identity signalling, can be generated by a small number of structural mechanisms. & 2019 The Author(s) Published by the Royal Society. All rights reserved. This document is the authors' final accepted version of the journal article. You are advised to consult the published version if you wish to cite from it. NHM Repository Article in Journal/Newspaper common guillemot Common Murre Uria aalge uria Natural History Museum Repository Journal of The Royal Society Interface 16 153 20190115 |
institution |
Open Polar |
collection |
Natural History Museum Repository |
op_collection_id |
ftnhmlondon |
language |
unknown |
topic |
coloniality coloration discrimination egg recognition individual recognition maculation biomaterials evolution |
spellingShingle |
coloniality coloration discrimination egg recognition individual recognition maculation biomaterials evolution Hauber, ME Bond, AL Kouwenberg, A-L Robertson, GJ Hansen, ES Holford, M Dainson, M Luro, A Dale, J The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. |
topic_facet |
coloniality coloration discrimination egg recognition individual recognition maculation biomaterials evolution |
description |
In group-living species with parental care, the accurate recognition of one's own young is critical to fitness. Because discriminating offspring within a large colonial group may be challenging, progeny of colonial breeders often display familial or individual identity signals to elicit and receive parental provisions from their own parents. For instance, the common murre (or common guillemot: Uria aalge) is a colonially breeding seabird that does not build a nest and lays and incubates an egg with an individually unique appearance. How the shell's physical and chemical properties generate this individual variability in coloration and maculation has not been studied in detail. Here, we quantified two characteristics of the avian-visible appearance of murre eggshells collected from the wild: background coloration spectra and maculation density. As predicted by the individual identity hypothesis, there was no statistical relationship between avian-perceivable shell background coloration and maculation density within the same eggs. In turn, variation in both sets of traits was statistically related to some of their physico-chemical properties, including shell thickness and concentrations of the eggshell pigments biliverdin and protoporphyrin IX. These results illustrate how individually unique eggshell appearances, suitable for identity signalling, can be generated by a small number of structural mechanisms. & 2019 The Author(s) Published by the Royal Society. All rights reserved. This document is the authors' final accepted version of the journal article. You are advised to consult the published version if you wish to cite from it. NHM Repository |
format |
Article in Journal/Newspaper |
author |
Hauber, ME Bond, AL Kouwenberg, A-L Robertson, GJ Hansen, ES Holford, M Dainson, M Luro, A Dale, J |
author_facet |
Hauber, ME Bond, AL Kouwenberg, A-L Robertson, GJ Hansen, ES Holford, M Dainson, M Luro, A Dale, J |
author_sort |
Hauber, ME |
title |
The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. |
title_short |
The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. |
title_full |
The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. |
title_fullStr |
The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. |
title_full_unstemmed |
The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. |
title_sort |
chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of common murre eggs. |
publisher |
Royal Society |
publishDate |
2019 |
url |
http://hdl.handle.net/10141/622539 https://doi.org/10.1098/rsif.2019.0115 |
genre |
common guillemot Common Murre Uria aalge uria |
genre_facet |
common guillemot Common Murre Uria aalge uria |
op_relation |
Hauber ME, Bond AL, Kouwenberg A-L, Robertson GJ, Hansen ES, Holford M, Dainson M, Luro A, Dale J. 2019 The chemical basis of a signal of individual identity: shell pigment concentrations track the unique appearance of Common Murre eggs. J. R. Soc. Interface 16: 20190115. http://dx.doi.org/10.1098/rsif.2019.0115 doi:10.1098/rsif.2019.0115 http://hdl.handle.net/10141/622539 1742-5662 J R Soc Interface 16 153 20190115 |
op_rights |
closedAccess |
op_doi |
https://doi.org/10.1098/rsif.2019.0115 |
container_title |
Journal of The Royal Society Interface |
container_volume |
16 |
container_issue |
153 |
container_start_page |
20190115 |
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1772813896744173568 |