Data from: Heterogeneity in individual quality in birds: overall patterns and insights from a study on common terns ...
While life-history theory predicts a trade-off between reproduction and survival, positive covariance, indicative of heterogeneity in individual quality, is often reported among individuals from natural populations. We review longitudinal studies of wild bird populations that test the relationship b...
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| Format: | Dataset |
| Language: | English |
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Dryad
2017
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| Online Access: | https://dx.doi.org/10.5061/dryad.6v29b https://datadryad.org/stash/dataset/doi:10.5061/dryad.6v29b |
| Summary: | While life-history theory predicts a trade-off between reproduction and survival, positive covariance, indicative of heterogeneity in individual quality, is often reported among individuals from natural populations. We review longitudinal studies of wild bird populations that test the relationship between annual reproductive success and lifespan and find the majority to report a positive correlation, while none reports a negative correlation. Heterogeneity in individual quality in resource acquisition, masking resource-based trade-offs, therefore appears to be common in birds. Considering that there is little evidence for heritable variation in fitness, heterogeneity in individual quality among adults may be due to life-long effects of developmental conditions. In a 20-year case study on common terns (Sterna hirundo), we test for life-long effects of cohort quality and within-cohort nest quality, but find no significant effects on long-term proxies of quality. Since other studies do find strong life-long ... : Vedder & Bouwhuis 2017 OikosData used for models presented in: Heterogeneity in individual quality in birds: overall patterns and insights from a study on common terns by Vedder, O. & Bouwhuis, S. ... |
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