Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins
Hormonally mediated maternal effects link maternal phenotype and environmental conditions to offspring phenotype. The production of lipid-rich maternal yolk precursors may provide a mechanism by which lipophilic steroid hormones can be transported to developing yolks, thus predicting a positive corr...
Main Authors: | , , , , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Dryad Digital Repository
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.cj56q |
id |
fttriple:oai:gotriple.eu:50|dedup_wf_001::1425fa2848de3b04182423f067d231a0 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::1425fa2848de3b04182423f067d231a0 2023-05-15T18:25:39+02:00 Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins Crossin, Glenn T. Poisbleau, Maud Demongin, Laurent Chastel, Olivier Williams, Tony D. Eens, Marcel Quillfeldt, Petra Crossin, G. T. Demongin, L. Eens, M. Poisbleau, M. Chastel, O. Williams, T. D. 2021-07-02 https://doi.org/10.5061/dryad.cj56q undefined unknown Dryad Digital Repository https://dx.doi.org/10.5061/dryad.cj56q http://dx.doi.org/10.5061/dryad.cj56q lic_creative-commons 10.5061/dryad.cj56q oai:easy.dans.knaw.nl:easy-dataset:81807 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:81807 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 reproductive hormones egg production migratory carryover effects testosterone Falkland Islands South Atlantic Southern Ocean Eudyptes chrysocome Life sciences medicine and health care psy socio Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2021 fttriple https://doi.org/10.5061/dryad.cj56q 2023-01-22T17:23:39Z Hormonally mediated maternal effects link maternal phenotype and environmental conditions to offspring phenotype. The production of lipid-rich maternal yolk precursors may provide a mechanism by which lipophilic steroid hormones can be transported to developing yolks, thus predicting a positive correlation between yolk precursors in mothers and androgen levels in eggs. Using rockhopper penguins (Eudyptes chrysocome), which produce a two-egg clutch characterized by extreme egg-size dimorphism, reversed hatching asynchrony and brood-reduction, we examined correlations between circulating concentrations of the primary yolk-precursor vitellogenin (VTG) and levels of yolk androgens. Previous work in Eudyptes penguins has shown that egg-size dimorphism is the product of migratory constraints on yolk precursor production. We predicted that if yolk precursors are constrained, androgen transport to developing yolks would be similarly constrained. We reveal positive linear relationships between maternal VTG and androgens in small A-eggs but not larger B-eggs, which is consistent with a migratory constraint operating on the A-egg. Results suggest that intra-clutch variation in total yolk androgen levels depends on the production and uptake of yolk precursors. The brood reduction strategy common to Eudyptes might thus be best described as the result of a migratory constraint. Crossin et al Biology Letters 2012 Dataset Southern Ocean Unknown Southern Ocean |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
reproductive hormones egg production migratory carryover effects testosterone Falkland Islands South Atlantic Southern Ocean Eudyptes chrysocome Life sciences medicine and health care psy socio |
spellingShingle |
reproductive hormones egg production migratory carryover effects testosterone Falkland Islands South Atlantic Southern Ocean Eudyptes chrysocome Life sciences medicine and health care psy socio Crossin, Glenn T. Poisbleau, Maud Demongin, Laurent Chastel, Olivier Williams, Tony D. Eens, Marcel Quillfeldt, Petra Crossin, G. T. Demongin, L. Eens, M. Poisbleau, M. Chastel, O. Williams, T. D. Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
topic_facet |
reproductive hormones egg production migratory carryover effects testosterone Falkland Islands South Atlantic Southern Ocean Eudyptes chrysocome Life sciences medicine and health care psy socio |
description |
Hormonally mediated maternal effects link maternal phenotype and environmental conditions to offspring phenotype. The production of lipid-rich maternal yolk precursors may provide a mechanism by which lipophilic steroid hormones can be transported to developing yolks, thus predicting a positive correlation between yolk precursors in mothers and androgen levels in eggs. Using rockhopper penguins (Eudyptes chrysocome), which produce a two-egg clutch characterized by extreme egg-size dimorphism, reversed hatching asynchrony and brood-reduction, we examined correlations between circulating concentrations of the primary yolk-precursor vitellogenin (VTG) and levels of yolk androgens. Previous work in Eudyptes penguins has shown that egg-size dimorphism is the product of migratory constraints on yolk precursor production. We predicted that if yolk precursors are constrained, androgen transport to developing yolks would be similarly constrained. We reveal positive linear relationships between maternal VTG and androgens in small A-eggs but not larger B-eggs, which is consistent with a migratory constraint operating on the A-egg. Results suggest that intra-clutch variation in total yolk androgen levels depends on the production and uptake of yolk precursors. The brood reduction strategy common to Eudyptes might thus be best described as the result of a migratory constraint. Crossin et al Biology Letters 2012 |
format |
Dataset |
author |
Crossin, Glenn T. Poisbleau, Maud Demongin, Laurent Chastel, Olivier Williams, Tony D. Eens, Marcel Quillfeldt, Petra Crossin, G. T. Demongin, L. Eens, M. Poisbleau, M. Chastel, O. Williams, T. D. |
author_facet |
Crossin, Glenn T. Poisbleau, Maud Demongin, Laurent Chastel, Olivier Williams, Tony D. Eens, Marcel Quillfeldt, Petra Crossin, G. T. Demongin, L. Eens, M. Poisbleau, M. Chastel, O. Williams, T. D. |
author_sort |
Crossin, Glenn T. |
title |
Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
title_short |
Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
title_full |
Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
title_fullStr |
Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
title_full_unstemmed |
Data from: Migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
title_sort |
data from: migratory constraints on yolk precursors limit yolk androgen deposition and underlie a brood reduction strategy in rockhopper penguins |
publisher |
Dryad Digital Repository |
publishDate |
2021 |
url |
https://doi.org/10.5061/dryad.cj56q |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
10.5061/dryad.cj56q oai:easy.dans.knaw.nl:easy-dataset:81807 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:81807 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
https://dx.doi.org/10.5061/dryad.cj56q http://dx.doi.org/10.5061/dryad.cj56q |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.cj56q |
_version_ |
1766207227769651200 |