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  • Sparrows use a medicinal herb to defend against parasites and increase offspring condition

    Author(s)
    Yang, Canchao
    Ye, Ping
    Huo, Juan
    Møller, Anders P
    Liang, Wei
    Feeney, William E
    Griffith University Author(s)
    Feeney, William
    Year published
    2020
    Metadata
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    Abstract
    The incorporation of aromatic plants into nests by birds is suspected to constitute an example of preventative medicine use, whereby the phytochemical compounds within plants reduce infestation by parasites and increase offspring condition [1,2]. In China, russet sparrows (Passer cinnamomeus) incorporate wormwood (Artemisia verlotorum) leaves into their nests around the same time that local people hang wormwood from their doors as a traditional custom during the Dragon Boat Festival. The belief that this behaviour confers protection against ill health [3] is supported by the description of anti-parasite compounds in wormwood ...
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    The incorporation of aromatic plants into nests by birds is suspected to constitute an example of preventative medicine use, whereby the phytochemical compounds within plants reduce infestation by parasites and increase offspring condition [1,2]. In China, russet sparrows (Passer cinnamomeus) incorporate wormwood (Artemisia verlotorum) leaves into their nests around the same time that local people hang wormwood from their doors as a traditional custom during the Dragon Boat Festival. The belief that this behaviour confers protection against ill health [3] is supported by the description of anti-parasite compounds in wormwood [4]. It has been suggested that the incorporation of fresh wormwood leaves into nests may serve a similar function for sparrows. Here we show that sparrows choose nest location and resupply established nests with fresh wormwood leaves using olfactory cues, that nests containing wormwood leaves have lower ectoparasite loads, and that nests with more wormwood leaves produce heavier chicks. Our results indicate that sparrows use wormwood as a preventative medicine to control ectoparasites and improve the body mass of their offspring.
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    Journal Title
    Current Biology
    Volume
    30
    Issue
    23
    DOI
    https://doi.org/10.1016/j.cub.2020.10.021
    Subject
    Biological sciences
    Biomedical and clinical sciences
    Psychology
    Publication URI
    http://hdl.handle.net/10072/400582
    Collection
    • Journal articles

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