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Snowmelt and laying date impact the parental care strategy of a high-Arctic shorebird

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Title: Snowmelt and laying date impact the parental care strategy of a high-Arctic shorebird
Authors: Etchart, Léa, Lecomte, Nicolas, Dechaume-Moncharmont, François-Xavier, Lang, Johannes, Moreau, Jérôme, Pagnon, Thomas, Schmidt, Niels Martin, Sittler, Benoit, Bollache, Loïc, Gilg, Olivier
Contributors: Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC), Canada Research Chair in Polar and Boreal Ecology, Université de Moncton, Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon, Working Group for Wildlife Research at the Clinic for Birds, Reptiles, Amphibians and Fish, Justus Liebig University Giessen, Groupe de recherche en écologie arctique (GREA), Biogéosciences UMR 6282 (BGS), École Pratique des Hautes Études (EPHE), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Bourgogne Europe (UBE), Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Ecoscience Aarhus, Aarhus University Aarhus, Arctic Research Centre Aarhus (ARC), Chair for Nature Conservation and Landscape Ecology, Albert-Ludwigs-Universität Freiburg = University of Freiburg, ANR-21-CE02-0024,PACS,Stratégie de soins parentaux des limicoles Arctiques : conséquences de l'interaction entre les conditions abiotiques et les interactions proies-prédateurs sur le succès de la reproduction(2021)
Source: ISSN: 2045-2322.
Publisher Information: CCSD
Nature Publishing Group
Publication Year: 2025
Collection: HAL - Université de La Rochelle
Subject Terms: Biparental, Greenland, Path analysis, Proximal factors, Sanderling, Uniparental, Behavioural ecology, Population dynamics, MESH: Animals, MESH: Arctic Regions, MESH: Reproduction, MESH: Temperature, MESH: Snow, MESH: Nesting Behavior, MESH: Charadriiformes, MESH: Female, MESH: Climate Change, MESH: Greenland, MESH: Seasons, MESH: Animal Migration, [SDV]Life Sciences [q-bio]
Description: International audience ; Abstract Why parental care strategies can vary from uniparental to biparental care across taxa remains unclear, likely because various sets of ecological conditions are at-play. Here we tested ten possible hypotheses to decipher the direct and indirect impacts of critical factors likely to influence the parental care strategy during incubation in Sanderlings ( Calidris alba ), one of the few species that uses both types of care during that critical time of the breeding cycle. We examined three ecological factors (timing of local snowmelt, regional temperatures, and the North Atlantic Oscillation experienced just before breeding), one trophic factor (predation pressure), and two social factors (relative abundance of Sanderlings and their laying dates). Using long-term data from Greenland (2011–2023), path analyses revealed that laying date and snowmelt influence parental care strategies during incubation, with indirect climatic effects during migration and on breeding grounds. We observed a greater proportion of uniparental nests in years with delayed laying dates, and the reverse in years with delayed snowmelt. These findings underscore the complex interplay between environmental parameters and parental care strategies, offering insights into how these strategies are likely to respond to rapidly changing Arctic ecological conditions driven by climate change.
Document Type: article in journal/newspaper
Language: English
Relation: info:eu-repo/semantics/altIdentifier/pmid/40473680; PUBMED: 40473680; PUBMEDCENTRAL: PMC12141443
DOI: 10.1038/s41598-025-02318-y
Availability: https://hal.science/hal-05100165
https://hal.science/hal-05100165v1/document
https://hal.science/hal-05100165v1/file/2025_Etchart_Scientific_Rep.pdf
https://doi.org/10.1038/s41598-025-02318-y
Rights: http://creativecommons.org/licenses/by/ ; info:eu-repo/semantics/OpenAccess
Accession Number: edsbas.738DDB08
Database: BASE
Description
Abstract:International audience ; Abstract Why parental care strategies can vary from uniparental to biparental care across taxa remains unclear, likely because various sets of ecological conditions are at-play. Here we tested ten possible hypotheses to decipher the direct and indirect impacts of critical factors likely to influence the parental care strategy during incubation in Sanderlings ( Calidris alba ), one of the few species that uses both types of care during that critical time of the breeding cycle. We examined three ecological factors (timing of local snowmelt, regional temperatures, and the North Atlantic Oscillation experienced just before breeding), one trophic factor (predation pressure), and two social factors (relative abundance of Sanderlings and their laying dates). Using long-term data from Greenland (2011–2023), path analyses revealed that laying date and snowmelt influence parental care strategies during incubation, with indirect climatic effects during migration and on breeding grounds. We observed a greater proportion of uniparental nests in years with delayed laying dates, and the reverse in years with delayed snowmelt. These findings underscore the complex interplay between environmental parameters and parental care strategies, offering insights into how these strategies are likely to respond to rapidly changing Arctic ecological conditions driven by climate change.
DOI:10.1038/s41598-025-02318-y