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Showing 1–5 of 5 results
Advanced filters: Author: Dennis Hasselquist Clear advanced filters

  • Dietary carotenoids have been proposed to have physiological benefits in addition to contributing to coloration. Here, Koch et al. compare immune and antioxidant functions in yellow, carotenoid-rich vs. white, carotenoid-deficient canaries and find no difference, suggesting a limited physiological role of carotenoids.

    • Rebecca E. Koch
    • Andreas N. Kavazis
    • Geoffrey E. Hill
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • The offspring of a mating between two different species are often infertile, or almost so. But it seems that some birds can avoid this apparent cost of hybridization.

    • Dennis Hasselquist
    News & Views
    Nature
    Volume: 411, P: 34-35

  • It is unclear whether species’ responses to climate change tend to be adaptive or sufficient to keep up with climate change. Here, Radchuk et al. perform a meta-analysis showing that in birds phenology has advanced adaptively in some species, though not all the way to the new optima.

    • Viktoriia Radchuk
    • Thomas Reed
    • Stephanie Kramer-Schadt
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-14

  • A reconstruction of the colonization history of 1,311 Afro-Palaearctic songbird species, combined with comparisons of MHC-I genetic diversity, suggests that changes in pathogen pressure during colonization and migration have shaped immunity.

    • Emily A. O’Connor
    • Charlie K. Cornwallis
    • Helena Westerdahl
    Research
    Nature Ecology & Evolution
    Volume: 2, P: 841-849