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Linked selection and recombination rate variation drive the evolution of the genomic landscape of differentiation across the speciation continuum of Ficedula flycatchers.
TLDR
It is concluded that the heterogeneous landscape of differentiation in Ficedula flycatchers evolves mainly as the result of background selection and selective sweeps in genomic regions of low recombination, and the necessity of incorporating linked selection as a null model to identify genome regions involved in adaptation and speciation is emphasized. Expand
Modern Phylogenetic Comparative Methods and Their Application in Evolutionary Biology
TLDR
This book discusses working with the Tree of Life in Comparative Studies, and Phylogenetic Comparative Methods for Studying Clade-Wide Convergence, and uses and Misuse of Comparative methods in the Study of Adaptation. Expand
Coevolving avian eye size and brain size in relation to prey capture and nocturnality
TLDR
The findings suggest that relative eye size and brain size have coevolved in birds in response to nocturnal activity and, at least partly, to capture of mobile prey. Expand
Female collared flycatchers adjust yolk testosterone to male age, but not to attractiveness
TLDR
It is shown that free-living females of the collared flycatcher (Ficedula albicollis), a small passerine bird, do not produce larger eggs or deposit more testosterone into eggs when mating with attractive males, contrary to the prediction of the differential allocation hypothesis, and higher yolk testosterone concentrations in eggs laid for young than older males are found. Expand
Do Animals Living in Larger Groups Experience Greater Parasitism? A Meta-Analysis
TLDR
It is concluded that group size is a weak predictor of parasite risk except in species that live in large aggregations, such as colonial birds, in which effect sizes are larger. Expand
Flycatcher song in allopatry and sympatry – convergence, divergence and reinforcement
TLDR
Reinforcement has reduced the frequency of mixed singing in the pied flycatcher and caused a divergence in the song of the collared flycatchers, suggesting that mixed song may increase the rate of maladaptive hybridization. Expand
Changing philosophies and tools for statistical inferences in behavioral ecology
TLDR
It is emphasized the necessity of moving away from a heavy reliance on statistical significance while focusing attention on biological relevance and effect sizes, with the recognition that uncertainty is an inherent feature of biological data. Expand
Testosterone, testes size, and mating success in birds: a comparative study
TLDR
Interspecific patterns of circulating testosterone in male birds are investigated to test the hypothesis that testosterone plays a crucial role in sexual selection as determined by degree of polygyny and extra-pair paternity and a positive association is found between peak and residual peak testosterone and testes size relative to body size. Expand
Climate change increases the risk of malaria in birds
TLDR
Following the variation in parasite prevalence in more than 3000 bird species over seven decades, it is shown that the infection rate by Plasmodium is strongly associated with temperature anomalies and has been augmented with accelerating tendency during the last 20 years. Expand
Comparing effect sizes across variables: generalization without the need for Bonferroni correction
TLDR
The calculated effect sizes may be further used in simple analyses that can help to estimate the true effect of a predictor variable and thus make general conclusions, and the omission of nonsignificant results from publications is undesirable. Expand
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