Warming Arctic summers unlikely to increase productivity of shorebirds through renesting
Abstract Climate change in the Arctic is leading to earlier summers, creating a phenological mismatch between the hatching of insectivorous birds and the availability of their invertebrate prey. While phenological mismatch would presumably lower the survival of chicks, climate change is also leading...
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ftdoajarticles:oai:doaj.org/article:c9ed1af2b647484d915ba38cda00e56d 2023-05-15T15:02:20+02:00 Warming Arctic summers unlikely to increase productivity of shorebirds through renesting Sarah T. Saalfeld Brooke L. Hill Christine M. Hunter Charles J. Frost Richard B. Lanctot 2021-07-01T00:00:00Z https://doi.org/10.1038/s41598-021-94788-z https://doaj.org/article/c9ed1af2b647484d915ba38cda00e56d EN eng Nature Portfolio https://doi.org/10.1038/s41598-021-94788-z https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-94788-z 2045-2322 https://doaj.org/article/c9ed1af2b647484d915ba38cda00e56d Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021) Medicine R Science Q article 2021 ftdoajarticles https://doi.org/10.1038/s41598-021-94788-z 2022-12-31T13:59:44Z Abstract Climate change in the Arctic is leading to earlier summers, creating a phenological mismatch between the hatching of insectivorous birds and the availability of their invertebrate prey. While phenological mismatch would presumably lower the survival of chicks, climate change is also leading to longer, warmer summers that may increase the annual productivity of birds by allowing adults to lay nests over a longer period of time, replace more nests that fail, and provide physiological relief to chicks (i.e., warmer temperatures that reduce thermoregulatory costs). However, there is little information on how these competing ecological processes will ultimately impact the demography of bird populations. In 2008 and 2009, we investigated the survival of chicks from initial and experimentally-induced replacement nests of arcticola Dunlin (Calidris alpina) breeding near Utqiaġvik, Alaska. We monitored survival of 66 broods from 41 initial and 25 replacement nests. Based on the average hatch date of each group, chick survival (up to age 15 days) from replacement nests (Ŝ i = 0.10; 95% CI = 0.02–0.22) was substantially lower than initial nests (Ŝ i = 0.67; 95% CI = 0.48–0.81). Daily survival rates were greater for older chicks, chicks from earlier-laid clutches, and during periods of greater invertebrate availability. As temperature was less important to daily survival rates of shorebird chicks than invertebrate availability, our results indicate that any physiological relief experienced by chicks will likely be overshadowed by the need for adequate food. Furthermore, the processes creating a phenological mismatch between hatching of shorebird young and invertebrate emergence ensures that warmer, longer breeding seasons will not translate into abundant food throughout the longer summers. Thus, despite having a greater opportunity to nest later (and potentially replace nests), young from these late-hatching broods will likely not have sufficient food to survive. Collectively, these results indicate that warmer, ... Article in Journal/Newspaper Arctic Calidris alpina Climate change Dunlin Alaska Directory of Open Access Journals: DOAJ Articles Arctic Scientific Reports 11 1 |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Sarah T. Saalfeld Brooke L. Hill Christine M. Hunter Charles J. Frost Richard B. Lanctot Warming Arctic summers unlikely to increase productivity of shorebirds through renesting |
topic_facet |
Medicine R Science Q |
description |
Abstract Climate change in the Arctic is leading to earlier summers, creating a phenological mismatch between the hatching of insectivorous birds and the availability of their invertebrate prey. While phenological mismatch would presumably lower the survival of chicks, climate change is also leading to longer, warmer summers that may increase the annual productivity of birds by allowing adults to lay nests over a longer period of time, replace more nests that fail, and provide physiological relief to chicks (i.e., warmer temperatures that reduce thermoregulatory costs). However, there is little information on how these competing ecological processes will ultimately impact the demography of bird populations. In 2008 and 2009, we investigated the survival of chicks from initial and experimentally-induced replacement nests of arcticola Dunlin (Calidris alpina) breeding near Utqiaġvik, Alaska. We monitored survival of 66 broods from 41 initial and 25 replacement nests. Based on the average hatch date of each group, chick survival (up to age 15 days) from replacement nests (Ŝ i = 0.10; 95% CI = 0.02–0.22) was substantially lower than initial nests (Ŝ i = 0.67; 95% CI = 0.48–0.81). Daily survival rates were greater for older chicks, chicks from earlier-laid clutches, and during periods of greater invertebrate availability. As temperature was less important to daily survival rates of shorebird chicks than invertebrate availability, our results indicate that any physiological relief experienced by chicks will likely be overshadowed by the need for adequate food. Furthermore, the processes creating a phenological mismatch between hatching of shorebird young and invertebrate emergence ensures that warmer, longer breeding seasons will not translate into abundant food throughout the longer summers. Thus, despite having a greater opportunity to nest later (and potentially replace nests), young from these late-hatching broods will likely not have sufficient food to survive. Collectively, these results indicate that warmer, ... |
format |
Article in Journal/Newspaper |
author |
Sarah T. Saalfeld Brooke L. Hill Christine M. Hunter Charles J. Frost Richard B. Lanctot |
author_facet |
Sarah T. Saalfeld Brooke L. Hill Christine M. Hunter Charles J. Frost Richard B. Lanctot |
author_sort |
Sarah T. Saalfeld |
title |
Warming Arctic summers unlikely to increase productivity of shorebirds through renesting |
title_short |
Warming Arctic summers unlikely to increase productivity of shorebirds through renesting |
title_full |
Warming Arctic summers unlikely to increase productivity of shorebirds through renesting |
title_fullStr |
Warming Arctic summers unlikely to increase productivity of shorebirds through renesting |
title_full_unstemmed |
Warming Arctic summers unlikely to increase productivity of shorebirds through renesting |
title_sort |
warming arctic summers unlikely to increase productivity of shorebirds through renesting |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doi.org/10.1038/s41598-021-94788-z https://doaj.org/article/c9ed1af2b647484d915ba38cda00e56d |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calidris alpina Climate change Dunlin Alaska |
genre_facet |
Arctic Calidris alpina Climate change Dunlin Alaska |
op_source |
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021) |
op_relation |
https://doi.org/10.1038/s41598-021-94788-z https://doaj.org/toc/2045-2322 doi:10.1038/s41598-021-94788-z 2045-2322 https://doaj.org/article/c9ed1af2b647484d915ba38cda00e56d |
op_doi |
https://doi.org/10.1038/s41598-021-94788-z |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766334297298436096 |