Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird
1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non‐breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078868/ http://www.ncbi.nlm.nih.gov/pubmed/31584198 https://doi.org/10.1111/1365-2656.13118 |
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ftpubmed:oai:pubmedcentral.nih.gov:7078868 2023-05-15T14:59:48+02:00 Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird Reneerkens, Jeroen Versluijs, Tom S. L. Piersma, Theunis Alves, José A. Boorman, Mark Corse, Colin Gilg, Olivier Hallgrimsson, Gunnar Thor Lang, Johannes Loos, Bob Ntiamoa‐Baidu, Yaa Nuoh, Alfred A. Potts, Peter M. ten Horn, Job Lok, Tamar 2019-10-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078868/ http://www.ncbi.nlm.nih.gov/pubmed/31584198 https://doi.org/10.1111/1365-2656.13118 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078868/ http://www.ncbi.nlm.nih.gov/pubmed/31584198 http://dx.doi.org/10.1111/1365-2656.13118 © 2019 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. CC-BY-NC-ND Demography Text 2019 ftpubmed https://doi.org/10.1111/1365-2656.13118 2020-03-22T01:55:12Z 1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non‐breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris alba using six and eight winter destinations between 55°N and 25°S, respectively. 3. Annual apparent survival was considerably lower for adult birds wintering in tropical West Africa (Mauritania: 0.74 and Ghana: 0.75) than in three European sites (0.84, 0.84 and 0.87) and in subtropical Namibia (0.85). Moreover, compared with adults, second calendar‐year sanderlings in the tropics, but not in Europe, often refrained from migrating north during the first possible breeding season. During northward migration, tropical‐wintering sanderlings occurred at their final staging site in Iceland 5–15 days later than birds wintering further north or south. Namibia‐wintering sanderlings tracked with solar geolocators only staged in West Africa during southward migration. 4. The low annual survival, the later age of first northward migration and the later passage through Iceland during northward migration of tropical‐wintering sanderlings, in addition to the skipping of this area during northward but not southward migration by Namibia‐wintering sanderlings, all suggest they face issues during the late non‐breeding season in West Africa. 5. Migrating sanderlings defy long distances but may end up in winter areas with poor fitness prospects. We suggest that ecological conditions in tropical West Africa make the fuelling prior to northward departure problematic. Text Arctic Calidris alba Iceland Sanderling PubMed Central (PMC) Arctic Journal of Animal Ecology 89 3 691 703 |
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PubMed Central (PMC) |
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ftpubmed |
language |
English |
topic |
Demography |
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Demography Reneerkens, Jeroen Versluijs, Tom S. L. Piersma, Theunis Alves, José A. Boorman, Mark Corse, Colin Gilg, Olivier Hallgrimsson, Gunnar Thor Lang, Johannes Loos, Bob Ntiamoa‐Baidu, Yaa Nuoh, Alfred A. Potts, Peter M. ten Horn, Job Lok, Tamar Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
topic_facet |
Demography |
description |
1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non‐breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris alba using six and eight winter destinations between 55°N and 25°S, respectively. 3. Annual apparent survival was considerably lower for adult birds wintering in tropical West Africa (Mauritania: 0.74 and Ghana: 0.75) than in three European sites (0.84, 0.84 and 0.87) and in subtropical Namibia (0.85). Moreover, compared with adults, second calendar‐year sanderlings in the tropics, but not in Europe, often refrained from migrating north during the first possible breeding season. During northward migration, tropical‐wintering sanderlings occurred at their final staging site in Iceland 5–15 days later than birds wintering further north or south. Namibia‐wintering sanderlings tracked with solar geolocators only staged in West Africa during southward migration. 4. The low annual survival, the later age of first northward migration and the later passage through Iceland during northward migration of tropical‐wintering sanderlings, in addition to the skipping of this area during northward but not southward migration by Namibia‐wintering sanderlings, all suggest they face issues during the late non‐breeding season in West Africa. 5. Migrating sanderlings defy long distances but may end up in winter areas with poor fitness prospects. We suggest that ecological conditions in tropical West Africa make the fuelling prior to northward departure problematic. |
format |
Text |
author |
Reneerkens, Jeroen Versluijs, Tom S. L. Piersma, Theunis Alves, José A. Boorman, Mark Corse, Colin Gilg, Olivier Hallgrimsson, Gunnar Thor Lang, Johannes Loos, Bob Ntiamoa‐Baidu, Yaa Nuoh, Alfred A. Potts, Peter M. ten Horn, Job Lok, Tamar |
author_facet |
Reneerkens, Jeroen Versluijs, Tom S. L. Piersma, Theunis Alves, José A. Boorman, Mark Corse, Colin Gilg, Olivier Hallgrimsson, Gunnar Thor Lang, Johannes Loos, Bob Ntiamoa‐Baidu, Yaa Nuoh, Alfred A. Potts, Peter M. ten Horn, Job Lok, Tamar |
author_sort |
Reneerkens, Jeroen |
title |
Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
title_short |
Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
title_full |
Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
title_fullStr |
Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
title_full_unstemmed |
Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
title_sort |
low fitness at low latitudes: wintering in the tropics increases migratory delays and mortality rates in an arctic breeding shorebird |
publisher |
John Wiley and Sons Inc. |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078868/ http://www.ncbi.nlm.nih.gov/pubmed/31584198 https://doi.org/10.1111/1365-2656.13118 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calidris alba Iceland Sanderling |
genre_facet |
Arctic Calidris alba Iceland Sanderling |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7078868/ http://www.ncbi.nlm.nih.gov/pubmed/31584198 http://dx.doi.org/10.1111/1365-2656.13118 |
op_rights |
© 2019 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1111/1365-2656.13118 |
container_title |
Journal of Animal Ecology |
container_volume |
89 |
container_issue |
3 |
container_start_page |
691 |
op_container_end_page |
703 |
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1766331919049424896 |