Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird

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dc.contributor.authorNtiamoa‐Baidu, Y.
dc.contributor.authorReneerkens, J.
dc.contributor.authorVersluijs, T.S.L.
dc.contributor.authorPiersma, T.
dc.contributor.authorAlves, J.A.
dc.contributor.authorBoorman, M.
dc.contributor.authorCorse, C.
dc.contributor.authorGilg, O.
dc.contributor.authorHallgrimsson, G.T.
dc.contributor.authorLang, J.
dc.contributor.authorLoos, B.
dc.contributor.authorNuoh, A.A.
dc.contributor.authorPotts, P.M.
dc.contributor.authorten Horn, J.
dc.contributor.authorLok, T.
dc.date.accessioned2019-12-10T15:59:44Z
dc.date.available2019-12-10T15:59:44Z
dc.date.issued2019-10-04
dc.descriptionResearch Articleen_US
dc.description.abstract1. 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.en_US
dc.description.sponsorshipEuropean Community’s Seventh Framework Programme, Grant/Award Number: INTERACT 262693; Netherlands Organisation for Scientific research (NWO) ‐ Netherlands Polar Programme, Grant/ Award Number: 851.40.072 and 866.15.207; Waddenfonds, Grant/Award Number: WF209925; Institut Polaire Français Paul Emile Victor, Grant/Award Number: 1036 Interactions; Fundacão paraa Ciêncae a Tecnologia, Grant/Award Number: SFRH/ BPD/91527/2012; Netherlands Organisation for Scientific research (NWO), Grant/Award Number: 016.Veni.192.245en_US
dc.identifier.citationReneerkens J, Versluijs TSL, Piersma T, et al. Low fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird. J Anim Ecol. 2019;00:1–13. https ://doi. org/10.1111/1365-2656.13118en_US
dc.identifier.otherDOI: 10.1111/1365-2656.13118
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/34112
dc.language.isoenen_US
dc.publisherJournal of Animal Ecologyen_US
dc.relation.ispartofseries88;12
dc.subjectdemographyen_US
dc.subjectfitnessen_US
dc.subjectmigrationen_US
dc.subjectnutrient storage strategiesen_US
dc.subjectsite fidelityen_US
dc.subjectsolar geolocationen_US
dc.subjectsurvivalen_US
dc.subjecttimingen_US
dc.titleLow fitness at low latitudes: Wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebirden_US
dc.typeArticleen_US

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