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...
Published in: | Journal of Animal Ecology |
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Language: | English |
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2020
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Online Access: | https://www.vliz.be/imisdocs/publications/56/342956.pdf |
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ftnioz:oai:imis.nioz.nl:317945 2023-05-15T14:59:54+02:00 Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird Reneerkens, J. Versluijs, T.S.L. Piersma, T. Alves, J.A. Boorman, M. Corse, C. Gilg, O. Hallgrimsson, G.T. Lang, J. Loos, B. Ntiamoa-Baidu, Y. Nuoh, A.A. Potts, P.M. ten Horn, J. Lok, T. 2020 application/pdf https://www.vliz.be/imisdocs/publications/56/342956.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000492850600001 info:eu-repo/semantics/altIdentifier/doi/.org/10.1111/1365-2656.13118 https://www.vliz.be/imisdocs/publications/56/342956.pdf info:eu-repo/semantics/openAccess %3Ci%3EJ.+Anim.+Ecol.+89%283%29%3C%2Fi%3E%3A+691-703.+%3Ca+href%3D%22https%3A%2F%2Fdoi.org%2F10.1111%2F1365-2656.13118%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdoi.org%2F10.1111%2F1365-2656.13118%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftnioz https://doi.org/10.1111/1365-2656.13118 2022-05-01T14:11:13Z 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. Article in Journal/Newspaper Arctic Calidris alba Iceland Sanderling NIOZ Repository (Royal Netherlands Institute for Sea Research) Arctic Journal of Animal Ecology 89 3 691 703 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
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 |
Article in Journal/Newspaper |
author |
Reneerkens, J. Versluijs, T.S.L. Piersma, T. Alves, J.A. Boorman, M. Corse, C. Gilg, O. Hallgrimsson, G.T. Lang, J. Loos, B. Ntiamoa-Baidu, Y. Nuoh, A.A. Potts, P.M. ten Horn, J. Lok, T. |
spellingShingle |
Reneerkens, J. Versluijs, T.S.L. Piersma, T. Alves, J.A. Boorman, M. Corse, C. Gilg, O. Hallgrimsson, G.T. Lang, J. Loos, B. Ntiamoa-Baidu, Y. Nuoh, A.A. Potts, P.M. ten Horn, J. Lok, T. Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird |
author_facet |
Reneerkens, J. Versluijs, T.S.L. Piersma, T. Alves, J.A. Boorman, M. Corse, C. Gilg, O. Hallgrimsson, G.T. Lang, J. Loos, B. Ntiamoa-Baidu, Y. Nuoh, A.A. Potts, P.M. ten Horn, J. Lok, T. |
author_sort |
Reneerkens, J. |
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 |
publishDate |
2020 |
url |
https://www.vliz.be/imisdocs/publications/56/342956.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calidris alba Iceland Sanderling |
genre_facet |
Arctic Calidris alba Iceland Sanderling |
op_source |
%3Ci%3EJ.+Anim.+Ecol.+89%283%29%3C%2Fi%3E%3A+691-703.+%3Ca+href%3D%22https%3A%2F%2Fdoi.org%2F10.1111%2F1365-2656.13118%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdoi.org%2F10.1111%2F1365-2656.13118%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000492850600001 info:eu-repo/semantics/altIdentifier/doi/.org/10.1111/1365-2656.13118 https://www.vliz.be/imisdocs/publications/56/342956.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
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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1766332021577089024 |