Contrasting between- and within-individual trait effects on mortality risk in a long-lived seabird ...
Individual life span is the most important determinant of lifetime reproductive success and fitness across taxa. Identifying the relationships between life-history traits and survival therefore is fundamental to understanding the evolution of a species' traits. Especially important in this resp...
| Main Authors: | , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
Wiley
2016
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.6084/m9.figshare.c.3307326 https://wiley.figshare.com/collections/Contrasting_between-_and_within-individual_trait_effects_on_mortality_risk_in_a_long-lived_seabird/3307326 |
| Summary: | Individual life span is the most important determinant of lifetime reproductive success and fitness across taxa. Identifying the relationships between life-history traits and survival therefore is fundamental to understanding the evolution of a species' traits. Especially important in this respect is to separate the contributions of between- and within-individual trait effects, because only such an approach can identify markers of individual quality and expose within-individual processes such as aging or the occurrence of costs of reproduction. Here we report a rigorous cross-trait comparison in which we quantify effects of between- and within-individual variation in phenology, body mass, and reproductive performance on mortality risk in a long-lived seabird, the Common Tern Sterna hirundo . Between individuals, earlier arrival at the breeding colony, earlier egg-laying, greater body mass, and more successful reproduction are associated with a lower mortality risk, and are markers of individual quality. The ... |
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