Ontogenetic variation in the marine foraging of Atlantic salmon functionally links genomic diversity with a major life history polymorphism ...
The ecological role of heritable phenotypic variation in free-living populations remains largely unknown. Knowledge of the genetic basis of functional ecological processes can link genomic and phenotypic diversity, providing insight into polymorphism evolution and how populations respond to environm...
| Main Authors: | , , |
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| Format: | Dataset |
| Language: | English |
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Dryad
2024
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.fqz612k1m https://datadryad.org/stash/dataset/doi:10.5061/dryad.fqz612k1m |
| Summary: | The ecological role of heritable phenotypic variation in free-living populations remains largely unknown. Knowledge of the genetic basis of functional ecological processes can link genomic and phenotypic diversity, providing insight into polymorphism evolution and how populations respond to environmental change. By quantifying the marine diet, of sub-adult Atlantic salmon, we assessed how foraging behavior changes along the ontogeny, and in relation to genetic variation in two loci with major effect on age-at-maturity (six6 and vgll3). We used a two-component, zero-inflated negative binomial model to simultaneously quantify foraging frequency (zero-inflation components) and foraging outcome (count component), separately for fish and crustaceans in the diet. We found that older salmon forage for both prey types more actively (as evidenced by increased foraging frequency), but with a decreased efficiency (as evidenced by fewer prey items in the diet), suggesting an age-dependent shift in foraging dynamics. The ... : Data and codes to reproduce the results in the MS titled Ontogenetic variation in the marine foraging of Atlantic salmon functionally links genomic diversity with a major life history polymorphism. ... |
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