Territoriality constrains foraging activity and has carry-over effects on reproductive investment
Abstract: Colonial breeding provides benefits such as reduced predation risk, but also entails costs due to the enhanced levels of competition. In particular, it may require a significant amount of time and energy to establish a territory at the onset of reproduction, which in turn can impose carry-...
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Online Access: | https://hdl.handle.net/10067/1886480151162165141 https://repository.uantwerpen.be/docstore/d:irua:13356 |
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ftunivantwerpen:c:irua:188648 2023-07-16T03:59:27+02:00 Territoriality constrains foraging activity and has carry-over effects on reproductive investment Salas, Reyes Baert, Jan Stienen, Eric Lens, Luc Müller, Wendt 2022 https://hdl.handle.net/10067/1886480151162165141 https://repository.uantwerpen.be/docstore/d:irua:13356 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1007/S00227-022-04073-4 info:eu-repo/semantics/altIdentifier/isi/000805180800001 info:eu-repo/semantics/openAccess 0025-3162 Marine biology Biology info:eu-repo/semantics/article 2022 ftunivantwerpen https://doi.org/10.1007/S00227-022-04073-4 2023-06-26T22:35:37Z Abstract: Colonial breeding provides benefits such as reduced predation risk, but also entails costs due to the enhanced levels of competition. In particular, it may require a significant amount of time and energy to establish a territory at the onset of reproduction, which in turn can impose carry-over effects on subsequent reproductive investments. Here we made use of GPS tracking devices to test how a colonial breeder, the lesser black-backed gull (Larus fuscus), balances its time investment between territorial and foraging activities throughout the pre-laying period, and investigated possible fitness consequences. As hypothesized, individuals that spent more time in their territories reduced their foraging time, foraged closer to the colony, and spent less time commuting during foraging trips. Although males initially invested more time in establishing a territory, both sexes gradually spent more time in their territory as the onset of egg laying, an energetically demanding period, approached. Furthermore, males that exhibited a higher territory attendance alleviated the females' time constraints for foraging and their partners laid larger eggs. Our results highlight the importance of quantifying carry-over effects related to time budgets during the (often understudied) pre-laying period, to better comprehend fitness consequences of colonial breeding. Article in Journal/Newspaper Lesser black-backed gull IRUA - Institutional Repository van de Universiteit Antwerpen Marine Biology 169 7 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Salas, Reyes Baert, Jan Stienen, Eric Lens, Luc Müller, Wendt Territoriality constrains foraging activity and has carry-over effects on reproductive investment |
topic_facet |
Biology |
description |
Abstract: Colonial breeding provides benefits such as reduced predation risk, but also entails costs due to the enhanced levels of competition. In particular, it may require a significant amount of time and energy to establish a territory at the onset of reproduction, which in turn can impose carry-over effects on subsequent reproductive investments. Here we made use of GPS tracking devices to test how a colonial breeder, the lesser black-backed gull (Larus fuscus), balances its time investment between territorial and foraging activities throughout the pre-laying period, and investigated possible fitness consequences. As hypothesized, individuals that spent more time in their territories reduced their foraging time, foraged closer to the colony, and spent less time commuting during foraging trips. Although males initially invested more time in establishing a territory, both sexes gradually spent more time in their territory as the onset of egg laying, an energetically demanding period, approached. Furthermore, males that exhibited a higher territory attendance alleviated the females' time constraints for foraging and their partners laid larger eggs. Our results highlight the importance of quantifying carry-over effects related to time budgets during the (often understudied) pre-laying period, to better comprehend fitness consequences of colonial breeding. |
format |
Article in Journal/Newspaper |
author |
Salas, Reyes Baert, Jan Stienen, Eric Lens, Luc Müller, Wendt |
author_facet |
Salas, Reyes Baert, Jan Stienen, Eric Lens, Luc Müller, Wendt |
author_sort |
Salas, Reyes |
title |
Territoriality constrains foraging activity and has carry-over effects on reproductive investment |
title_short |
Territoriality constrains foraging activity and has carry-over effects on reproductive investment |
title_full |
Territoriality constrains foraging activity and has carry-over effects on reproductive investment |
title_fullStr |
Territoriality constrains foraging activity and has carry-over effects on reproductive investment |
title_full_unstemmed |
Territoriality constrains foraging activity and has carry-over effects on reproductive investment |
title_sort |
territoriality constrains foraging activity and has carry-over effects on reproductive investment |
publishDate |
2022 |
url |
https://hdl.handle.net/10067/1886480151162165141 https://repository.uantwerpen.be/docstore/d:irua:13356 |
genre |
Lesser black-backed gull |
genre_facet |
Lesser black-backed gull |
op_source |
0025-3162 Marine biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/S00227-022-04073-4 info:eu-repo/semantics/altIdentifier/isi/000805180800001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/S00227-022-04073-4 |
container_title |
Marine Biology |
container_volume |
169 |
container_issue |
7 |
_version_ |
1771547182828093440 |