Drivers of within- and among-individual variation in risk-taking behaviour during reproduction in a long-lived bird ...

Plastic and selective mechanisms govern parental investment adjustments to predation threat. We investigated the relative importance of plasticity and selection in risk-taking propensity of incubating female common eiders Somateria mollissima facing unprecedented predation in SW Finland, Baltic Sea....

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Bibliographic Details
Main Authors: Mohring, Bertille, Angelier, Frédéric, Jaatinen, Kim, Steele, Ben, Lönnberg, Elin, Öst, Markus
Format: Dataset
Language:English
Published: Dryad 2022
Subjects:
common eider
Somateria mollissima
Flight Initiation Distance
phenotypic plasticity
predation risk
Selection hypothesis
FOS Biological sciences
Common Eider
Online Access:https://dx.doi.org/10.5061/dryad.m37pvmd59
https://datadryad.org/stash/dataset/doi:10.5061/dryad.m37pvmd59
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Summary:Plastic and selective mechanisms govern parental investment adjustments to predation threat. We investigated the relative importance of plasticity and selection in risk-taking propensity of incubating female common eiders Somateria mollissima facing unprecedented predation in SW Finland, Baltic Sea. Using a 12-year individual-based dataset, we examined within- and among-individual variation in flight initiation distance (FID), in relation to predation risk, nest detectability, individual traits and reproductive investment (NFID = 1009; Nindividual = 559). We expected females nesting in riskier environments (higher predation risk, lower nest concealment) to mitigate environmentally-imposed risk by exhibiting longer FIDs, and females investing more in current reproduction (older, in better condition or laying large clutches) to display shorter FIDs. The target of predation - adult or offspring - affected the mechanisms adapting risk-taking propensity; females plastically increased their FID under higher adult ...

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