Potential mode of clutch size determination and follicle development in Eudyptes penguins
It has long been held that Eudyptes penguins will only ever develop a maximum of two mature yolky follicles to match their invariant two-egg clutch, an idea inferred largely from egg removal studies. Combining our own data with those from a previous but rarely cited study and by applying these to a...
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ftnerc:oai:nora.nerc.ac.uk:16603 2024-02-11T10:03:35+01:00 Potential mode of clutch size determination and follicle development in Eudyptes penguins Crossin, Glenn T. Trathan, Phil N. Williams, Tony D. 2012 http://nora.nerc.ac.uk/id/eprint/16603/ http://www.springerlink.com/content/6x3652361526624h/ unknown Springer Crossin, Glenn T.; Trathan, Phil N. orcid:0000-0001-6673-9930 Williams, Tony D. 2012 Potential mode of clutch size determination and follicle development in Eudyptes penguins. Polar Biology, 35 (2). 313-317. https://doi.org/10.1007/s00300-011-1065-3 <https://doi.org/10.1007/s00300-011-1065-3> Publication - Article PeerReviewed 2012 ftnerc https://doi.org/10.1007/s00300-011-1065-3 2024-01-26T00:03:20Z It has long been held that Eudyptes penguins will only ever develop a maximum of two mature yolky follicles to match their invariant two-egg clutch, an idea inferred largely from egg removal studies. Combining our own data with those from a previous but rarely cited study and by applying these to a simple developmental model, we show that macaroni penguins (Eudyptes chrysolophus) develop up to four large, yolky vitellogenic follicles, and they do so despite the fact that they will never lay more than two eggs or rear more than one chick, a tactic that seems maladaptive given their realized reproductive success. We discuss these results within the context of the usual pattern of reproductive investment in Eudyptes penguins and suggest a broader significance to modes of clutch size determination among all penguins (order Sphenisciformes). Article in Journal/Newspaper Eudyptes chrysolophus Polar Biology Natural Environment Research Council: NERC Open Research Archive Polar Biology 35 2 313 317 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
It has long been held that Eudyptes penguins will only ever develop a maximum of two mature yolky follicles to match their invariant two-egg clutch, an idea inferred largely from egg removal studies. Combining our own data with those from a previous but rarely cited study and by applying these to a simple developmental model, we show that macaroni penguins (Eudyptes chrysolophus) develop up to four large, yolky vitellogenic follicles, and they do so despite the fact that they will never lay more than two eggs or rear more than one chick, a tactic that seems maladaptive given their realized reproductive success. We discuss these results within the context of the usual pattern of reproductive investment in Eudyptes penguins and suggest a broader significance to modes of clutch size determination among all penguins (order Sphenisciformes). |
format |
Article in Journal/Newspaper |
author |
Crossin, Glenn T. Trathan, Phil N. Williams, Tony D. |
spellingShingle |
Crossin, Glenn T. Trathan, Phil N. Williams, Tony D. Potential mode of clutch size determination and follicle development in Eudyptes penguins |
author_facet |
Crossin, Glenn T. Trathan, Phil N. Williams, Tony D. |
author_sort |
Crossin, Glenn T. |
title |
Potential mode of clutch size determination and follicle development in Eudyptes penguins |
title_short |
Potential mode of clutch size determination and follicle development in Eudyptes penguins |
title_full |
Potential mode of clutch size determination and follicle development in Eudyptes penguins |
title_fullStr |
Potential mode of clutch size determination and follicle development in Eudyptes penguins |
title_full_unstemmed |
Potential mode of clutch size determination and follicle development in Eudyptes penguins |
title_sort |
potential mode of clutch size determination and follicle development in eudyptes penguins |
publisher |
Springer |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/16603/ http://www.springerlink.com/content/6x3652361526624h/ |
genre |
Eudyptes chrysolophus Polar Biology |
genre_facet |
Eudyptes chrysolophus Polar Biology |
op_relation |
Crossin, Glenn T.; Trathan, Phil N. orcid:0000-0001-6673-9930 Williams, Tony D. 2012 Potential mode of clutch size determination and follicle development in Eudyptes penguins. Polar Biology, 35 (2). 313-317. https://doi.org/10.1007/s00300-011-1065-3 <https://doi.org/10.1007/s00300-011-1065-3> |
op_doi |
https://doi.org/10.1007/s00300-011-1065-3 |
container_title |
Polar Biology |
container_volume |
35 |
container_issue |
2 |
container_start_page |
313 |
op_container_end_page |
317 |
_version_ |
1790599881314795520 |