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Age-dependent health status and song characteristics in the barn swallow
Bird song has been hypothesized to evolve, partly, to signal health status of males, and song features should therefore correlate with parasite load. Immune function,... -
Rapid change in nest size of a bird related to change in a secondary sexual c...
Among bird species in which males contribute to nest building, sexual selection has favored larger nests. I investigated determinants of nest size in the barn swallow... -
Antioxidants, radiation and mutation as revealed by sperm abnormality in barn...
Reduced levels of antioxidants such as carotenoids and vitamins A and E can increase DNA damage caused by free radicals. Exposure to radiation has been proposed to... -
Rapid evolutionary change in a secondary sexual character linked to climatic ...
The ability of organisms to respond evolutionarily to rapid climatic change is poorly known. Secondary sexual characters show the potential for rapid evolutionary...
