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Showing 1–6 of 6 results
Advanced filters: Author: Mihai Valcu Clear advanced filters

  • Cristina-Maria Valcu et al. present the proteomes of the blue tit egg albumen and yolk. They find that laying order and female age drive variation in overall egg composition but that the proteomes specifically are dependent on laying order, suggesting maternal effects on egg composition are a result of both passive and active mechanisms.

    • Cristina-Maria Valcu
    • Richard A. Scheltema
    • Bart Kempenaers
    ResearchOpen Access
    Communications Biology
    Volume: 2, P: 1-14

  • By quantifying the colouration of all approximately 6,000 species of passerine birds, certain life-history traits such as large body size and tropical distribution are found to increase ornamentation in both male and female birds, whereas cooperative breeding increases it in females only, and sexual selection diminishes it in females more than it increases it in males.

    • James Dale
    • Cody J. Dey
    • Mihai Valcu
    Research
    Nature
    Volume: 527, P: 367-370

  • Socially synchronized rhythms in shorebirds were assessed during biparental incubation under natural circumstances and were exceptionally diverse, often not following the 24-h day, whereby risk of predation, not starvation, determined some of the variation in incubation rhythms.

    • Martin Bulla
    • Mihai Valcu
    • Bart Kempenaers
    Research
    Nature
    Volume: 540, P: 109-113