Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls
Hatching asynchrony in birds produces an age and size hierarchy among siblings. Later-hatching chicks have a competitive disadvantage, and brood reduction may occur when food availability is insufficient to raise all chicks. When early-hatched chicks fail to survive or if the circumstances allow rai...
Published in: | Behavioral Ecology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2004
|
Subjects: | |
Online Access: | https://hdl.handle.net/11370/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 https://research.rug.nl/en/publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 https://doi.org/10.1093/beheco/arh091 https://pure.rug.nl/ws/files/6681387/2004BehavEcolMuller.pdf |
id |
ftunigroningenpu:oai:pure.rug.nl:publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 |
---|---|
record_format |
openpolar |
spelling |
ftunigroningenpu:oai:pure.rug.nl:publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 2024-06-02T08:05:28+00:00 Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls Mueller, Wendt Eising, CM Dijkstra, C Groothuis, TGG 2004-11 application/pdf https://hdl.handle.net/11370/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 https://research.rug.nl/en/publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 https://doi.org/10.1093/beheco/arh091 https://pure.rug.nl/ws/files/6681387/2004BehavEcolMuller.pdf eng eng https://research.rug.nl/en/publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 info:eu-repo/semantics/openAccess Mueller , W , Eising , CM , Dijkstra , C & Groothuis , TGG 2004 , ' Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls ' , Behavioral Ecology , vol. 15 , no. 6 , pp. 893-897 . https://doi.org/10.1093/beheco/arh091 hatching asynchrony maternal effects yolk androgens KESTREL FALCO-TINNUNCULUS HERRING GULL MATERNAL ANDROGENS GALLUS-DOMESTICUS LAYING DATE COMMON TERN EGGS SIZE PROLACTIN article 2004 ftunigroningenpu https://doi.org/10.1093/beheco/arh091 2024-05-07T18:22:03Z Hatching asynchrony in birds produces an age and size hierarchy among siblings. Later-hatching chicks have a competitive disadvantage, and brood reduction may occur when food availability is insufficient to raise all chicks. When early-hatched chicks fail to survive or if the circumstances allow raising all chicks, mothers should reverse the disadvantage to later-hatched chicks. Increasing deposition of maternal androgens with the laying sequence has been suggested to compensate for detrimental effects of hatching asynchrony, allowing a more precise adjustment of the survival probabilities of each chick. Here, we show for black-headed gulls that the increase in yolk testosterone with each successive egg is greater when the mother incubates longer before clutch completion, which is the major determinant of the degree of hatching asynchrony. This finding supports the idea that yolk testosterone has a compensatory function in the context of hatching asynchrony. Our data further show that if the time needed to complete a clutch is lengthened, the developmental differences due to incubation between the first- and the last-laid eggs increase. In addition, the onset of incubation before clutch completion occurs sooner as the breeding season progresses. Both long inter-egg intervals and the seasonal shift in incubation behavior enhance the necessity of compensation for later-hatching chicks. Indeed, yolk levels of testosterone increased more steeply over the laying order, if the duration of the egg-laying period was extended and in later-laid clutches. We suggest that prolactin plays a key role in the adjustment of testosterone allocation to the incubation pattern. Article in Journal/Newspaper Common tern University of Groningen research database Behavioral Ecology 15 6 893 397 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
hatching asynchrony maternal effects yolk androgens KESTREL FALCO-TINNUNCULUS HERRING GULL MATERNAL ANDROGENS GALLUS-DOMESTICUS LAYING DATE COMMON TERN EGGS SIZE PROLACTIN |
spellingShingle |
hatching asynchrony maternal effects yolk androgens KESTREL FALCO-TINNUNCULUS HERRING GULL MATERNAL ANDROGENS GALLUS-DOMESTICUS LAYING DATE COMMON TERN EGGS SIZE PROLACTIN Mueller, Wendt Eising, CM Dijkstra, C Groothuis, TGG Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
topic_facet |
hatching asynchrony maternal effects yolk androgens KESTREL FALCO-TINNUNCULUS HERRING GULL MATERNAL ANDROGENS GALLUS-DOMESTICUS LAYING DATE COMMON TERN EGGS SIZE PROLACTIN |
description |
Hatching asynchrony in birds produces an age and size hierarchy among siblings. Later-hatching chicks have a competitive disadvantage, and brood reduction may occur when food availability is insufficient to raise all chicks. When early-hatched chicks fail to survive or if the circumstances allow raising all chicks, mothers should reverse the disadvantage to later-hatched chicks. Increasing deposition of maternal androgens with the laying sequence has been suggested to compensate for detrimental effects of hatching asynchrony, allowing a more precise adjustment of the survival probabilities of each chick. Here, we show for black-headed gulls that the increase in yolk testosterone with each successive egg is greater when the mother incubates longer before clutch completion, which is the major determinant of the degree of hatching asynchrony. This finding supports the idea that yolk testosterone has a compensatory function in the context of hatching asynchrony. Our data further show that if the time needed to complete a clutch is lengthened, the developmental differences due to incubation between the first- and the last-laid eggs increase. In addition, the onset of incubation before clutch completion occurs sooner as the breeding season progresses. Both long inter-egg intervals and the seasonal shift in incubation behavior enhance the necessity of compensation for later-hatching chicks. Indeed, yolk levels of testosterone increased more steeply over the laying order, if the duration of the egg-laying period was extended and in later-laid clutches. We suggest that prolactin plays a key role in the adjustment of testosterone allocation to the incubation pattern. |
format |
Article in Journal/Newspaper |
author |
Mueller, Wendt Eising, CM Dijkstra, C Groothuis, TGG |
author_facet |
Mueller, Wendt Eising, CM Dijkstra, C Groothuis, TGG |
author_sort |
Mueller, Wendt |
title |
Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
title_short |
Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
title_full |
Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
title_fullStr |
Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
title_full_unstemmed |
Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
title_sort |
within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls |
publishDate |
2004 |
url |
https://hdl.handle.net/11370/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 https://research.rug.nl/en/publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 https://doi.org/10.1093/beheco/arh091 https://pure.rug.nl/ws/files/6681387/2004BehavEcolMuller.pdf |
genre |
Common tern |
genre_facet |
Common tern |
op_source |
Mueller , W , Eising , CM , Dijkstra , C & Groothuis , TGG 2004 , ' Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls ' , Behavioral Ecology , vol. 15 , no. 6 , pp. 893-897 . https://doi.org/10.1093/beheco/arh091 |
op_relation |
https://research.rug.nl/en/publications/f322cd2b-69cb-490a-b7c0-0f92f8e849b8 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/beheco/arh091 |
container_title |
Behavioral Ecology |
container_volume |
15 |
container_issue |
6 |
container_start_page |
893 |
op_container_end_page |
397 |
_version_ |
1800750282160734208 |