Wetland salinity induces sex-dependent carry-over effects on the individual performance of a long-distance migrant

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Title: Wetland salinity induces sex-dependent carry-over effects on the individual performance of a long-distance migrant
Author(s): Schroeder, J
Masero, JA
Abad-Gomez, JM
Gutierrez, JS
Santiago-Quesada, F
Senner, NR
Sanchez-Guzman, JM
Piersma, T
Amat, JA
Villegas, A
Item Type: Journal Article
Abstract: Salinization is having a major impact on wetlands and its biota worldwide. Specifically, many migratory animals that rely on wetlands are increasingly exposed to elevated salinity on their nonbreeding grounds. Experimental evidence suggests that physiological challenges associated with increasing salinity may disrupt self-maintenance processes in these species. Nonetheless, the potential role of salinity as a driver of ecological carry-over effects remains unstudied. Here, we investigated the extent to which the use of saline wetlands during winter – inferred from feather stable isotope values – induces residual effects that carry over and influence physiological traits relevant to fitness in black-tailed godwits Limosa limosa limosa on their northward migration. Overwintering males and females were segregated by wetland salinity in West Africa, with females mostly occupying freshwater wetlands. The use of these wetlands along a gradient of salinities was associated with differences in immune responsiveness to phytohaemagglutinin and sized-corrected body mass in godwits staging in southern Europe during northward migration – 3,000 km from the nonbreeding grounds – but in males only. These findings provide a window onto the processes by which wetland salinity can induce carry-over effects and can help predict how migratory species should respond to future climate-induced increases in salinity.
Publication Date: 31-Jul-2017
Date of Acceptance: 17-Jul-2017
URI: http://hdl.handle.net/10044/1/50315
DOI: https://dx.doi.org/10.1038/s41598-017-07258-w
ISSN: 2045-2322
Publisher: Nature Publishing Group
Journal / Book Title: Scientific Reports
Volume: 7
Copyright Statement: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. © The Author(s) 2017
Sponsor/Funder: Volkswagen Foundation
Funder's Grant Number: Volkswagen Fellowship
Publication Status: Published
Article Number: 6867
Open Access location: https://www.nature.com/articles/s41598-017-07258-w
Appears in Collections:Faculty of Natural Sciences

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