Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions
Mates of biparental species share parental care but they are also predicted to try, within limits, to push for more offspring care from their partners. Here we test (a) whether mates will attempt to exploit their partners less often when resources are scarce so as to not push their partners to their...
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ftdoajarticles:oai:doaj.org/article:334cfdac441a4dd69efafda8742ba019 2023-05-15T15:56:05+02:00 Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions Anne E. Storey Sabina I. Wilhelm Carolyn J. Walsh 2020-01-01T00:00:00Z https://doi.org/10.3389/fevo.2019.00506 https://doaj.org/article/334cfdac441a4dd69efafda8742ba019 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fevo.2019.00506/full https://doaj.org/toc/2296-701X 2296-701X doi:10.3389/fevo.2019.00506 https://doaj.org/article/334cfdac441a4dd69efafda8742ba019 Frontiers in Ecology and Evolution, Vol 7 (2020) negotiation parental investment food availability common murre Uria aalge nest relief Evolution QH359-425 Ecology QH540-549.5 article 2020 ftdoajarticles https://doi.org/10.3389/fevo.2019.00506 2022-12-31T13:30:59Z Mates of biparental species share parental care but they are also predicted to try, within limits, to push for more offspring care from their partners. Here we test (a) whether mates will attempt to exploit their partners less often when resources are scarce so as to not push their partners to their abandonment threshold and (b) whether there are differences in exploitation and compensation strategies of low and high quality partners where the quality assessment is based on within-pair differences in chick-provisioning rates. The same 14 pairs of common murres were observed in a year when capelin fish (the main prey species) were abundant (match year) and in a second year when capelin did not arrive inshore to spawn until the second week after hatching (mismatch year). One murre parent always attends the chick and, in the most common type of interaction, the returning parent feeds the chick, and takes over the brooding role. We consider nest relief interactions to be irregular if they did not follow this sequence for determining which parent will continue or take on the lower-energy brooder role. Two types of irregular nest reliefs were examined: (a) the returning bird does not bring a fish and (b) the brooding bird does not allow a brooding changeover even when the returner brings a fish. Rates of irregular nest reliefs and total visit time increased in the mismatch year after capelin arrived inshore, suggesting that longer co-attendance in good conditions reflects negotiation, rather than the increased resting or “loafing” time as previously proposed. High provisioners initiated fewer irregular nest reliefs than their low provisioning partners during favorable conditions but increased to comparable levels when resources were scarce. Partners' attempts to brood without provisioning were less often refused during unfavorable feeding conditions, suggesting that murres compensated for their mates when they could. The observation that rates of irregular nest reliefs changed with resource availability suggests that ... Article in Journal/Newspaper Common Murre Uria aalge uria Directory of Open Access Journals: DOAJ Articles Frontiers in Ecology and Evolution 7 |
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topic |
negotiation parental investment food availability common murre Uria aalge nest relief Evolution QH359-425 Ecology QH540-549.5 |
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negotiation parental investment food availability common murre Uria aalge nest relief Evolution QH359-425 Ecology QH540-549.5 Anne E. Storey Sabina I. Wilhelm Carolyn J. Walsh Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions |
topic_facet |
negotiation parental investment food availability common murre Uria aalge nest relief Evolution QH359-425 Ecology QH540-549.5 |
description |
Mates of biparental species share parental care but they are also predicted to try, within limits, to push for more offspring care from their partners. Here we test (a) whether mates will attempt to exploit their partners less often when resources are scarce so as to not push their partners to their abandonment threshold and (b) whether there are differences in exploitation and compensation strategies of low and high quality partners where the quality assessment is based on within-pair differences in chick-provisioning rates. The same 14 pairs of common murres were observed in a year when capelin fish (the main prey species) were abundant (match year) and in a second year when capelin did not arrive inshore to spawn until the second week after hatching (mismatch year). One murre parent always attends the chick and, in the most common type of interaction, the returning parent feeds the chick, and takes over the brooding role. We consider nest relief interactions to be irregular if they did not follow this sequence for determining which parent will continue or take on the lower-energy brooder role. Two types of irregular nest reliefs were examined: (a) the returning bird does not bring a fish and (b) the brooding bird does not allow a brooding changeover even when the returner brings a fish. Rates of irregular nest reliefs and total visit time increased in the mismatch year after capelin arrived inshore, suggesting that longer co-attendance in good conditions reflects negotiation, rather than the increased resting or “loafing” time as previously proposed. High provisioners initiated fewer irregular nest reliefs than their low provisioning partners during favorable conditions but increased to comparable levels when resources were scarce. Partners' attempts to brood without provisioning were less often refused during unfavorable feeding conditions, suggesting that murres compensated for their mates when they could. The observation that rates of irregular nest reliefs changed with resource availability suggests that ... |
format |
Article in Journal/Newspaper |
author |
Anne E. Storey Sabina I. Wilhelm Carolyn J. Walsh |
author_facet |
Anne E. Storey Sabina I. Wilhelm Carolyn J. Walsh |
author_sort |
Anne E. Storey |
title |
Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions |
title_short |
Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions |
title_full |
Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions |
title_fullStr |
Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions |
title_full_unstemmed |
Negotiation of Parental Duties in Chick-Rearing Common Murres (Uria aalge) in Different Foraging Conditions |
title_sort |
negotiation of parental duties in chick-rearing common murres (uria aalge) in different foraging conditions |
publisher |
Frontiers Media S.A. |
publishDate |
2020 |
url |
https://doi.org/10.3389/fevo.2019.00506 https://doaj.org/article/334cfdac441a4dd69efafda8742ba019 |
genre |
Common Murre Uria aalge uria |
genre_facet |
Common Murre Uria aalge uria |
op_source |
Frontiers in Ecology and Evolution, Vol 7 (2020) |
op_relation |
https://www.frontiersin.org/article/10.3389/fevo.2019.00506/full https://doaj.org/toc/2296-701X 2296-701X doi:10.3389/fevo.2019.00506 https://doaj.org/article/334cfdac441a4dd69efafda8742ba019 |
op_doi |
https://doi.org/10.3389/fevo.2019.00506 |
container_title |
Frontiers in Ecology and Evolution |
container_volume |
7 |
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1766391563851661312 |