Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla
Capsule: Black-legged Kittiwakes Rissa tridactyla breeding at a North Sea colony allocated more resources to younger chicks with increasing brood age. Aims: Examine how feeding, attendance and resource allocation change with increasing brood age and how allocation of feeds affects growth rate and fl...
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Taylor and Francis
2015
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Online Access: | https://eprints.gla.ac.uk/101024/ https://eprints.gla.ac.uk/101024/1/101024.pdf |
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ftuglasgow:oai:eprints.gla.ac.uk:101024 2023-05-15T18:07:09+02:00 Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla Robertson, Gail S. Bolton, Mark Monaghan, Patricia 2015 text https://eprints.gla.ac.uk/101024/ https://eprints.gla.ac.uk/101024/1/101024.pdf en eng Taylor and Francis https://eprints.gla.ac.uk/101024/1/101024.pdf Robertson, G. S. <http://eprints.gla.ac.uk/view/author/21126.html>, Bolton, M. <http://eprints.gla.ac.uk/view/author/14994.html> and Monaghan, P. <http://eprints.gla.ac.uk/view/author/10154.html> (2015) Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla. Bird Study <https://eprints.gla.ac.uk/view/journal_volume/Bird_Study.html>, 62(3), pp. 303-314. (doi:10.1080/00063657.2015.1040370 <https://doi.org/10.1080/00063657.2015.1040370>) cc_by_4 CC-BY Articles PeerReviewed 2015 ftuglasgow https://doi.org/10.1080/00063657.2015.1040370 2022-09-22T22:12:16Z Capsule: Black-legged Kittiwakes Rissa tridactyla breeding at a North Sea colony allocated more resources to younger chicks with increasing brood age. Aims: Examine how feeding, attendance and resource allocation change with increasing brood age and how allocation of feeds affects growth rate and fledging success. Methods: Broods of two were observed on Coquet Island to compare feeding rates and fledging success between chicks of different hatching order. Results: Growth and feeding rates were similar between chicks of different hatching order. The relationship between growth and feeding rate may have differed between siblings, although this relationship was not strong. Feeding rate per brood and nest attendance decreased nonlinearly as brood age increased. First-hatched chicks were fed more frequently at the beginning of multiple feeds and received a higher proportion of feeds during early chick-rearing. However, during late chick-rearing second-hatched chicks received proportionally more feeds. Conclusion: Parents reduced overall feeding rate as brood age increased, while increasing the proportion of resources allocated to younger offspring. This may explain general similarities in growth rate and fledging success between chicks of different hatching order. By considering resource allocation throughout development we can better understand parental investment strategies in asynchronous species. Article in Journal/Newspaper rissa tridactyla University of Glasgow: Enlighten - Publications Bird Study 62 3 303 314 |
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Open Polar |
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University of Glasgow: Enlighten - Publications |
op_collection_id |
ftuglasgow |
language |
English |
description |
Capsule: Black-legged Kittiwakes Rissa tridactyla breeding at a North Sea colony allocated more resources to younger chicks with increasing brood age. Aims: Examine how feeding, attendance and resource allocation change with increasing brood age and how allocation of feeds affects growth rate and fledging success. Methods: Broods of two were observed on Coquet Island to compare feeding rates and fledging success between chicks of different hatching order. Results: Growth and feeding rates were similar between chicks of different hatching order. The relationship between growth and feeding rate may have differed between siblings, although this relationship was not strong. Feeding rate per brood and nest attendance decreased nonlinearly as brood age increased. First-hatched chicks were fed more frequently at the beginning of multiple feeds and received a higher proportion of feeds during early chick-rearing. However, during late chick-rearing second-hatched chicks received proportionally more feeds. Conclusion: Parents reduced overall feeding rate as brood age increased, while increasing the proportion of resources allocated to younger offspring. This may explain general similarities in growth rate and fledging success between chicks of different hatching order. By considering resource allocation throughout development we can better understand parental investment strategies in asynchronous species. |
format |
Article in Journal/Newspaper |
author |
Robertson, Gail S. Bolton, Mark Monaghan, Patricia |
spellingShingle |
Robertson, Gail S. Bolton, Mark Monaghan, Patricia Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla |
author_facet |
Robertson, Gail S. Bolton, Mark Monaghan, Patricia |
author_sort |
Robertson, Gail S. |
title |
Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla |
title_short |
Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla |
title_full |
Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla |
title_fullStr |
Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla |
title_full_unstemmed |
Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla |
title_sort |
parental resource allocation among offspring varies with increasing brood age in black-legged kittiwakes rissa tridactyla |
publisher |
Taylor and Francis |
publishDate |
2015 |
url |
https://eprints.gla.ac.uk/101024/ https://eprints.gla.ac.uk/101024/1/101024.pdf |
genre |
rissa tridactyla |
genre_facet |
rissa tridactyla |
op_relation |
https://eprints.gla.ac.uk/101024/1/101024.pdf Robertson, G. S. <http://eprints.gla.ac.uk/view/author/21126.html>, Bolton, M. <http://eprints.gla.ac.uk/view/author/14994.html> and Monaghan, P. <http://eprints.gla.ac.uk/view/author/10154.html> (2015) Parental resource allocation among offspring varies with increasing brood age in Black-legged Kittiwakes Rissa tridactyla. Bird Study <https://eprints.gla.ac.uk/view/journal_volume/Bird_Study.html>, 62(3), pp. 303-314. (doi:10.1080/00063657.2015.1040370 <https://doi.org/10.1080/00063657.2015.1040370>) |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1080/00063657.2015.1040370 |
container_title |
Bird Study |
container_volume |
62 |
container_issue |
3 |
container_start_page |
303 |
op_container_end_page |
314 |
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1766179112493252608 |